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Home My Public Portal About2021-05-11 Williams PondSubject From To Cc Sent Attachments Fw: Williams Pond Kounelis, Angeline Driscoll, Michael; Pronovost, Marilyn Magoon, Steve; Town Councilors; Tracy, Tom; Mark R. Reich Wednesday, May 12, 2021 8:05 AM «Pages from WPA Notice 0 Arlington St. Sawins Pond (5).pdf> «Pages from 1. Watertown cov letter WPA Form Supporting Text (1).pdf» «Pages from 2. Appendix A and B (1).pdf>> Request for information at the 05/11/2021 Town Council Meeting. Notation must be made; communication regarding activities in the area of Williams Pond were initiated on 01/13/2021. Thank you. Best, Angie Angeline Maria B. Kounelis District A, East End, Town Councilor The City Known as the Town of Watertown 617-926-2352 All electronic mail to and from this City address should be considered subject to Massachusetts Public Records Laws. Thank you From: Kounelis, Angeline Sent: Friday, May 7, 2021 7:54 AM To: Driscoll, Michael; Leo Martin Cc: Magoon, Steve; Schwab, Laurel; Town Councilors Subject: Re: Williams Pond Good morning, Mr. Driscoll and Mr. Martin: Leo: thank you for indicating: "He has been notified a couple of times". If there has been a "letter from the planning department"; as followup to my two queries on 01/13/2021 and 02/01/2021; I would expect to be advised. As I verbally stated, almost two weeks ago on April 27th: the Town Council is not "window dressing". I have been totally unaware of any actions taken by the Team to address the conditions on the Williams Pond property. I am expected to respond to constituents, who take the initiative to bring issues to my attention. Sometimes, I just wonder why I even bother wasting my time communicating with the Administration. No wonder there is a perceived lack of transparency. As previously stated: when the Team has the opportunity, I would appreciate followup status; specific to authorized/unauthorized activities on the parcel. Thank you. Best, Angie Angeline Maria B. Kounelis District A, East End, Town Councilor The City Known as the Town of Watertown 617-926-2352 All electronic mail to and from this City address should be considered subject to Massachusetts Public Records Laws. Thank you From: Leo Martin <Igm683@gmail.com> Sent: Thursday, May 6, 2021 9:34 PM To: Kounelis, Angeline Cc: Driscoll, Michael; Magoon, Steve; Schwab, Laurel; Town Councilors Subject: Re: Williams Pond He has been notified a couple of times that he is in violation of the state and local wetland requirements for doing work without a permit. We need to do more than just a letter from the planning department. Thank you Councilor Kounelis fro the heads up. Leo On Hello Mr. Driscoll, May 6, 2021, at 8:22 PM , Kounelis, Angeline <akounelisPwatertown-ma.gov> wrote: As noted in my 01/13/2021 and 02/01/2021 communications; it has been reported to me that there have been tree clearing activities on the Williams Pond site. There are many restrictions associated with the wetland areas. Also to note: the property owner has filed a Notice of Intent application (documents attached) with the Conservation Commission. The case before the Conservation Commission has been continued to June, 2021. When the Team has the opportunity, I would appreciate followup status; specific to authorized/unauthorized activities on the parcel. Thank you. Best, Angie Angeline Maria B. Kounelis District A, East End, Town Councilor The City Known as the Town of Watertown 617-926-2352 All electronic mail to and from this City address should be considered subject to Massachusetts Public Records Laws. Thank you From: Kounelis, Angeline Sent: To: Magoon, Steven Monday, February 1, 2021 11:07 AN Cc: Driscoll, Michael; Schwab, Laurel; Kounelis, Angeline Subject: Re: Williams Pond Hi Steve, When you have the opportunity, please advise as to the status of activities on the Williams Pond site. Thank you. Best, Angie Angeline B. Kounelis District A, East End, Town Councilor The City Known as the Town of Watertown 617-926-2352 All electronic mail to and from this City address should be considered subject to Massachusetts Public Records Laws. Thank you From: Magoon, Steven Sent: To: Schwab, Laurel Cc: Driscoll, Michael; Kounelis, Angeline Subject: RE: Williams Pond Wednesday, January 13, 2021 3:16 PM Laurel, can you please provide an update to me regarding the situation regarding Willams pond? Thanks From: Kounelis, Angeline Sent: Wednesday, January 13, 2021 2:24 PM To: Magoon, Steven <smagoon@watertown-ma.gov> Cc: Driscoll, Michael <mdriscoll@watertown-ma.gov>; Kounelis, Angeline <akounelis@watertown- ma.gov> Subject: Williams Pond Hello Steve, It has been brought to my attention that early on Tuesday morning, Jan. 12th, 2021, a large white box truck (no lettering) was backed -up to Williams Pond. The truck was parked on the property at 23-29 Elm St., where access had been gained to Williams Pond. Large pieces of newly cut tree sections were being loaded onto the truck; from the Pond area. I fully understand that Williams Pond is private property. When you have the opportunity, please advise if clearing of trees on the wetlands is permissible. Thank you. Best, Angie Angeline B. Kounelis District A, East End, Town Councilor The City Known as the Town of Watertown 617-926-2352 All electronic mail to and from this City address should be considered subject to Massachusetts Public Records Laws. Thank you <Pages from WPA Notice 0 Arlington St. Sawins Pond (5).pdf><Pages from 1. Watertown cov letter WPA Form Supporting Text (1).pdf><Pages from 2. Appendix A and B (1).pdf> ENVIRONMENTAL CONSULTANTS Sound Science. Creative Solutions.` Amherst Office 15 Research Drive Amherst, Massachusetts 01002 Tel 413.256.0202 Fax 413.256.1092 NOTIFICATION TO ABUTTERS UNDER THE MA WETLANDS PROTECTION ACT & The Watertown Wetland Ordinance In accordance with the second paragraph of Massachusetts General Laws Chapter 131, Section 40 and the Hampden Wetlands Protection Bylaw, you hereby notified of the following: A. The name of the applicant is Maximos Hatziliades B. The representative is SWCA Environmental Consultants. C. The applicant has filed a Notice of Intent, with the Watertown Conservation Commission seeking approval jurisdicational resource areas Subject to Protection Under the Wetlands Protection Act (MGL Ch. 131, Sec. 40) and the Hampden Wetlands Protection Bylaw; C. The address of the lot where the activity is proposed is at 0 Arlington Street D. The Notice of Intent may be examined at the Watertown Conservation Commission Office in the Town Hall between the hours of by appointment. E. For more information call the Conservation Agent at (617) 972-6426 or SWCA representative at 413-658-2062. Public Hearings will be held the third Wednesday evening of each month. Due to Covid-19, hearings are currently virtually The anticiapted hearing date for this Notice of Intent is April 7th at 7:OOpm. Please contact the Conservation Agent with questions on how to attend the meeting. F. A copy can be requested by the SWCA representative Valerie Miller at 413-256-2062 or vmiller@swca.com. NOTE: Notice of Public Hearing, including its date, time and place will also be published at least five (5) days in advance in The Watertown Tab. You may also contact your local Conservation Commission or the nearest Department of Environmental Protection Regional Office for more information about this application or the Wetlands Protection Act and the Hampden Wetlands Protection Bylaw. To contact the Department of Environmental Protection, call the Northeast Regional Office at 978-694-3200 or http://www.mass.gov/dep/ 2/68 1900 West Park Drive, Suite 280 Westborough, Massachusetts 01581 Tel 413.256.0202 www.swca.com EN IRONMENTAL CONSULTANTS 2136 Sound Science. Creative Solutions March 12, 2021 Ms. Laurel Schwab, AICP Senior Environmental Planner & Conservation Agent Watertown Conservation Commission 149 Main Street Watertown, Massachusetts 02472 Re: Notice of Intent Parcel 1236-2-0 0 Arlington Street, Watertown, Massachusetts SWCA Job # 59467 Dear Ms. Schwab and Members of the Conservation Commission: SWCA Environmental Consultants (SWCA), on behalf of Mr. Maximos Hatziliades (Applicant), has prepared this Notice of Intent (NOI) application for the redevelopment of parcel 1236-2-0 at 0 Arlington Street in Watertown (Williams parcel). The project proposes to redevelop the Williams parcel in accordance with 310 CMR 10.58(5). As part of redeveloping this parcel, the Applicant proposes the construction of a 7,150 square foot mixed -use building accessed from Arlington Street and Elm Street. The Williams parcel is degraded from past abandoned dumping grounds associated with the former property uses when owned by the Hood Rubber Company in the early 1900's and later the B.F Goodrich Company, which utilized the parcel in 1929. SWCA is submitting four hard copies of this NOI and one full set of civil design plans prepared by Engineering Alliance, Inc. This NOI is also being submitted electronically to the Conservation Commission and the Massachusetts Department of Environmental Protection. The project is proposed as a Category 3.b activity, construction of any commercial development, with a fee of $1,575.00 that includes the 1.5 multiplier for projects within Riverfront Area. The City's portion of the fee is $800.00 and is being submitted with this NOI. The Commonwealth's share of $775.00 is submitted with the eDEP Wetlands Transmittal Fee form. We look forward to presenting this project to the Conservation Commission at the next public hearing. If you have any questions regarding this application or would like to set up a site walk, please do not hesitate to contact us at our office. Sincerely, Valerie Miller Team Lead, Natural Resources cc. Maximos Hatziliades, Massachusetts Department of Environmental Protection, Northeast Regional Office 4 Important: When filling out forms on the computer, use only the tab key to move your cursor - do not use the return key. Note: Before completing this form consult your local Conservation Commission regarding any municipal bylaw or ordinance. Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town A. General Information 1. Project Location (Note: electronic filers will click on button to locate project site): 0 Arlington Street Watertown a. Street Address b. City/Town Latitude and Longitude: 1236-2-0 42.36415 N 02472 c. Zip Code 71.15540 W d. Latitude e. Longitude f. Assessors Map/Plat Number 2. Applicant: Maximos g. Parcel /Lot Number Hatzillades a. First Name b. Last Name c. Organization 71 Arlington Street d. Street Address Watertown MA 02472 e. City/Town (617)331-8209 h. Phone Number i. Fax Number f. State maxhatz2@gmail.com j. Email Address g. Zip Code 3. Property owner (required if different from applicant): ❑ Check if more than one owner a. First Name b. Last Name c. Organization d. Street Address e. City/Town h. Phone Number 4. Representative (if any): Valerie i. Fax Number a. First Name SWCA Environmental Consultants f. State g. Zip Code j. Email address Miller b. Last Name c. Company 15 Research Drive d. Street Address Amherst Ma 01002 e. City/Town (413)658-2062 h. Phone Number i. Fax Number f. State vmiller@swca.com j. Email address g. Zip Code 5. Total WPA Fee Paid (from NOI Wetland Fee Transmittal Form): $1,575 a. Total Fee Paid $775 b. State Fee Paid $800 c. City/Town Fee Paid wpaform3.doc • rev. 6/18/2020 Page 1 of 9 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town A. General Information (continued) 6. General Project Description: Redevelopment project to construct a commercial building. 7a. Project Type Checklist: (Limited Project Types see Section A. 7b.) 1. ❑ Single Family Home 2. ❑ Residential Subdivision 3. ® Commercial/Industrial 4. ❑ Dock/Pier 5. ❑ Utilities 6. ❑ Coastal engineering Structure 7. ❑ Agriculture (e.g., cranberries, forestry) 8. ❑ Transportation 9. ❑ Other 7b. Is any portion of the proposed activity eligible to be treated as a limited project (including Ecological Restoration Limited Project) subject to 310 CMR 10.24 (coastal) or 310 CMR 10.53 (inland)? 1. ❑ Yes ® No If yes, describe which limited project applies to this project. (See 310 CMR 10.24 and 10.53 for a complete list and description of limited project types) 2. Limited Project Type If the proposed activity is eligible to be treated as an Ecological Restoration Limited Project (310 CMR10.24(8), 310 CMR 10.53(4)), complete and attach Appendix A: Ecological Restoration Limited Project Checklist and Signed Certification. 8. Property recorded at the Registry of Deeds for: South Middlesex a. County b. Certificate # (if registered land) 288 68293 c. Book d. Page Number B. Buffer Zone & Resource Area Impacts (temporary & permanent) 1. ❑ Buffer Zone Only — Check if the project is located only in the Buffer Zone of a Bordering Vegetated Wetland, Inland Bank, or Coastal Resource Area. 2. ® Inland Resource Areas (see 310 CMR 10.54-10.58; if not applicable, go to Section B.3, Coastal Resource Areas). Check all that apply below. Attach narrative and any supporting documentation describing how the project will meet all performance standards for each of the resource areas altered, including standards requiring consideration of alternative project design or location. wpaform3.doc • rev. 6/18/2020 Page 2 of 9 4 For all projects affecting other Resource Areas, please attach a narrative explaining how the resource area was delineated. Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town B. Buffer Zone & Resource Area Impacts (temporary & permanent) (cont'd) Resource Area Size of Proposed Alteration Proposed Replacement (if any) a. ❑ Bank 1. linear feet b. ® Bordering Vegetated 4,215 c. ❑ Wetland Land Under Waterbodies and Waterways Resource Area d. ❑ Bordering Land Subject to Flooding 2. linear feet 6,930 1. square feet 2. square feet 1. square feet 2. square feet 3. cubic yards dredged Size of Proposed Alteration Proposed Replacement (if any) 1. square feet 2. square feet 3. cubic feet of flood storage lost 4. cubic feet replaced e. ❑ Isolated Land Subject to Flooding 1. square feet f. ® Riverfront Area 2. cubic feet of flood storage lost 3. cubic feet replaced Locally known as Williams Brook 1. Name of Waterway (if available) - specify coastal or inland 2. Width of Riverfront Area (check one): ❑ 25 ft. - Designated Densely Developed Areas only ❑ 100 ft. - New agricultural projects only ® 200 ft. - All other projects 3. Total area of Riverfront Area on the site of the proposed project: 4. Proposed alteration of the Riverfront Area: 23,971 22,059 1,912 a. total square feet 61,711 square feet b. square feet within 100 ft. c. square feet between 100 ft. and 200 ft. 5. Has an alternatives analysis been done and is it attached to this NOI? 6. Was the lot where the activity is proposed created prior to August 1, 1996? 3. ❑ Coastal Resource Areas: (See 310 CMR 10.25-10.35) Note: for coastal riverfront areas, please complete Section B.2.f. above. • Yes ❑ No • Yes ❑ No wpaform3.doc • rev. 6/18/2020 Page 3 of 9 4 Online Users: Include your document transaction number (provided on your receipt page) with all supplementary information you submit to the Department. Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town B. Buffer Zone & Resource Area Impacts (temporary & permanent) (cont'd) Check all that apply below. Attach narrative and supporting documentation describing how the project will meet all performance standards for each of the resource areas altered, including standards requiring consideration of alternative project design or location. Resource Area a. ❑ Size of Proposed Alteration Proposed Replacement (if any) Designated Port Areas Indicate size under Land Under the Ocean, below b. ❑ Land Under the Ocean c. ❑ d. ❑ e. ❑ f. ❑ 9• ❑ h. ❑ i. ❑ j. ❑ k. ❑ I. ❑ Barrier Beach Coastal Beaches Coastal Dunes Coastal Banks Rocky Intertidal Shores Salt Marshes Land Under Salt Ponds Land Containing Shellfish Fish Runs Land Subject to Coastal Storm Flowage 4. ❑ Restoration/Enhancement If the project is for the purpose of restoring or enhancing a wetland resource area in addition to the square footage that has been entered in Section B.2.b or B.3.h above, please enter the additional amount here. 1. square feet 2. cubic yards dredged Indicate size under Coastal Beaches and/or Coastal Dunes below 1. square feet 2. cubic yards beach nourishment 1. square feet 2. cubic yards dune nourishment Size of Proposed Alteration Proposed Replacement (if any) 1. linear feet 1. square feet 1. square feet 2. sq ft restoration, rehab., creation 1. square feet 2. cubic yards dredged 1. square feet Indicate size under Coastal Banks, inland Bank, Land Under the Ocean, and/or inland Land Under Waterbodies and Waterways, above 1. cubic yards dredged 1. square feet a. square feet of BVW 5. ❑ Project Involves Stream Crossings a. number of new stream crossings b. square feet of Salt Marsh b. number of replacement stream crossings wpaform3.doc • rev. 6/18/2020 Page 4 of 9 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 — Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town C. Other Applicable Standards and Requirements ❑ This is a proposal for an Ecological Restoration Limited Project. Skip Section C and complete Appendix A: Ecological Restoration Limited Project Checklists — Required Actions (310 CMR 10.11). Streamlined Massachusetts Endangered Species Act/Wetlands Protection Act Review 1. Is any portion of the proposed project located in Estimated Habitat of Rare Wildlife as indicated on the most recent Estimated Habitat Map of State -Listed Rare Wetland Wildlife published by the Natural Heritage and Endangered Species Program (NHESP)? To view habitat maps, see the Massachusetts Natural Heritage Atlas or go to http://maps.massgis.state.ma.us/PRI EST HAB/viewer.htm. a. ❑ Yes ® No 2017 b. Date of map If yes, include proof of mailing or hand delivery of NOI to: Natural Heritage and Endangered Species Program Division of Fisheries and Wildlife 1 Rabbit Hill Road Westborough, MA 01581 If yes, the project is also subject to Massachusetts Endangered Species Act (MESA) review (321 CMR 10.18). To qualify for a streamlined, 30 -day, MESA/Wetlands Protection Act review, please complete Section C.1.c, and include requested materials with this Notice of Intent (NOI); OR complete Section C.2.f, if applicable. If MESA supplemental information is not included with the NOI, by completing Section 1 of this form, the NHESP will require a separate MESA filing which may take up to 90 days to review (unless noted exceptions in Section 2 apply, see below). c. Submit Supplemental Information for Endangered Species Review* 1. ❑ Percentage/acreage of property to be altered: (a) within wetland Resource Area percentage/acreage (b) outside Resource Area percentage/acreage 2. ❑ Assessor's Map or right-of-way plan of site 2. ❑ Project plans for entire project site, including wetland resource areas and areas outside of wetlands jurisdiction, showing existing and proposed conditions, existing and proposed tree/vegetation clearing line, and clearly demarcated limits of work ** (a) ❑ Project description (including description of impacts outside of wetland resource area & buffer zone) (b) ❑ Photographs representative of the site * Some projects not in Estimated Habitat may be located in Priority Habitat, and require NHESP review (see https://www.mass.gov/ma- endangered-species-act-mesa-regulatory-review). Priority Habitat includes habitat for state -listed plants and strictly upland species not protected by the Wetlands Protection Act. ** MESA projects may not be segmented (321 CMR 10.16). The applicant must disclose full development plans even if such plans are not required as part of the Notice of Intent process. wpaform3.doc • rev. 6/18/2020 Page 5 of 9 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town C. Other Applicable Standards and Requirements (cont'd) (c) ❑ MESA filing fee (fee information available at https://www.mass.gov/how-to/how-to-file-for- a-mesa-project-review). Make check payable to "Commonwealth of Massachusetts - NHESP" and mail to NHESP at above address Projects altering 10 or more acres of land, also submit: (d) ❑ Vegetation cover type map of site (e) ❑ Project plans showing Priority & Estimated Habitat boundaries (f) OR Check One of the Following 1. ❑ Project is exempt from MESA review. Attach applicant letter indicating which MESA exemption applies. (See 321 CMR 10.14, https://www.mass.gov/service-details/exemptions-from-review-for-projectsactivities-in- priority-habitat; the NOI must still be sent to NHESP if the project is within estimated habitat pursuant to 310 CMR 10.37 and 10.59.) 2. ❑ Separate MESA review ongoing. a. NHESP Tracking # b. Date submitted to NHESP 3. ❑ Separate MESA review completed. Include copy of NHESP "no Take" determination or valid Conservation & Management Permit with approved plan. 3. For coastal projects only, is any portion of the proposed project located below the mean high water line or in a fish run? a. ® Not applicable — project is in inland resource area only b. ❑ Yes ❑ No If yes, include proof of mailing, hand delivery, or electronic delivery of NOI to either: South Shore - Cohasset to Rhode Island border, and North Shore - Hull to New Hampshire border: the Cape & Islands: Division of Marine Fisheries - Southeast Marine Fisheries Station Attn: Environmental Reviewer 836 South Rodney French Blvd. New Bedford, MA 02744 Email: dmf.envreview-south@mass.gov Division of Marine Fisheries - North Shore Office Attn: Environmental Reviewer 30 Emerson Avenue Gloucester, MA 01930 Email: dmf.envreview-north@mass.gov Also if yes, the project may require a Chapter 91 license. For coastal towns in the Northeast Region, please contact MassDEP's Boston Office. For coastal towns in the Southeast Region, please contact MassDEP's Southeast Regional Office. c. ❑ Is this an aquaculture project? d. ❑ Yes ❑ No If yes, include a copy of the Division of Marine Fisheries Certification Letter (M.G.L. c. 130, § 57). wpaform3.doc • rev. 6/18/2020 Page 6 of 9 4 Online Users: Include your document transaction number (provided on your receipt page) with all supplementary information you submit to the Department. Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town C. Other Applicable Standards and Requirements (cont'd) 4. Is any portion of the proposed project within an Area of Critical Environmental Concern (ACEC)? a. ❑ Yes ® No If yes, provide name of ACEC (see instructions to WPA Form 3 or MassDEP Website for ACEC locations). Note: electronic filers click on Website. b. ACEC 5. Is any portion of the proposed project within an area designated as an Outstanding Resource Water (ORW) as designated in the Massachusetts Surface Water Quality Standards, 314 CMR 4.00? a. ❑ Yes ® No 6. Is any portion of the site subject to a Wetlands Restriction Order under the Inland Wetlands Restriction Act (M.G.L. c. 131, § 40A) or the Coastal Wetlands Restriction Act (M.G.L. c. 130, § 105)? a. ❑ Yes ® No 7. Is this project subject to provisions of the MassDEP Stormwater Management Standards? a. ® Yes. Attach a copy of the Stormwater Report as required by the Stormwater Management Standards per 310 CMR 10.05(6)(k) -(q) and check if: 1. ® Applying for Low Impact Development (LID) site design credits (as described in Stormwater Management Handbook Vol. 2, Chapter 3) 2. ® A portion of the site constitutes redevelopment 3. ® Proprietary BMPs are included in the Stormwater Management System. b. ❑ No. Check why the project is exempt: 1. ❑ Single-family house 2. ❑ Emergency road repair 3. ❑ Small Residential Subdivision (less than or equal to 4 single-family houses or less than or equal to 4 units in multi -family housing project) with no discharge to Critical Areas. D. Additional Information ❑ This is a proposal for an Ecological Restoration Limited Project. Skip Section D and complete Appendix A: Ecological Restoration Notice of Intent — Minimum Required Documents (310 CMR 10.12). Applicants must include the following with this Notice of Intent (NOI). See instructions for details. Online Users: Attach the document transaction number (provided on your receipt page) for any of the following information you submit to the Department. 1. USGS or other map of the area (along with a narrative description, if necessary) containing sufficient information for the Conservation Commission and the Department to locate the site. (Electronic filers may omit this item.) 2. ® Plans identifying the location of proposed activities (including activities proposed to serve as a Bordering Vegetated Wetland [BVW] replication area or other mitigating measure) relative to the boundaries of each affected resource area. wpaform3.doc • rev. 6/18/2020 Page 7 of 9 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town D. Additional Information (cont'd) 3. ® Identify the method for BVW and other resource area boundary delineations (MassDEP BVW Field Data Form(s), Determination of Applicability, Order of Resource Area Delineation, etc.), and attach documentation of the methodology. 4. ® List the titles and dates for all plans and other materials submitted with this NOI. Proposed Site Plan (Sheets C-0, C-1, C-2, C-3, L-1, L-2, D -I, D -II) a. Plan Title Engineering Alliance, Inc. Richard Salvo b. Prepared By October 9, 2020 d. Final Revision Date e. Scale c. Signed and Stamped by 1 inch = 20 feet Wetland Mitigation Plan, SWCA Environmental Consultants (L1-1 and February 2021 L-2) g. Date If there is more than one property owner, please attach a list of these property owners not listed on this form. Attach proof of mailing for Natural Heritage and Endangered Species Program, if needed. Attach proof of mailing for Massachusetts Division of Marine Fisheries, if needed. Attach NOI Wetland Fee Transmittal Form Attach Stormwater Report, if needed. E. Fees 1. ❑ Fee Exempt: No filing fee shall be assessed for projects of any city, town, county, or district of the Commonwealth, federally recognized Indian tribe housing authority, municipal housing authority, or the Massachusetts Bay Transportation Authority. Applicants must submit the following information (in addition to pages 1 and 2 of the NOI Wetland Fee Transmittal Form) to confirm fee payment: 20086 March 9th, 2021 2. Municipal Check Number 20087 3. Check date March 9th, 2021 4. State Check Number 5. Check date Scott 6. Payor name on check: First Name Fisher 7. Payor name on check: Last Name wpaform3.doc • rev. 6/18/2020 Page 8 of 9 Important: When filling out forms on the computer, use only the tab key to move your cursor - do not use the return key. To calculate filing fees. refer to the category fee list and examples in the instructions for filling out WPA Form 3 (Notice of Intent). Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands NO1 Wetland Fee Transmittal Form Massachusetts Wetlands Protection Act M.G.L. c, 131, §40 A. Applicant Information 1. Location of Project: a. Street Aqd ress t c. Check number 2. Applicant Mailing Address: a. First Name k" 4pc (NI \o� b. City/Town d. Fee amount b. Las m c. Organization d. Mailing Address E\--V-,o t•5\ e. Cit0lif own ; em er-C)4 f. State i. Fax Number j. Email Addr 9 3. Property Owner (if different): a. First Name g. Zip M18AE Cf k b. Last Name c. Organization d. Mailing Address e. City/Town h. Phone Number f. State g. Zip Code i. Fax Number j. Email Address B. Fees Fee should be calculated using the following process & worksheet. Please see Instructions before filling out worksheet. Step 1/Type of Activity: Describe each type of activity that will occur in wetland resource area and buffer zone. Step 2/Number of Activities: Identify the number of each type of activity. Step 3/Individual Activity Fee: Identify each activity fee from the six project categories listed in the instructions. Step 4/Subtotal Activity Fee: Multiply the number of activities (identified in Step 2) times the fee per category (identified in Step 3) to reach a subtotal fee amount. Note: If any of these activities are in a Riverfront Area in addition to another Resource Area or the Buffer Zone, the fee per activity should be multiplied by 1.5 and then added to the subtotal amount. Step 5/Total Project Fee: Determine the total project fee by adding the subtotal amounts from Step 4. Step 6/Fee Payments: To calculate the state share of the fee, divide the total fee in half and subtract $12.50. To calculate the city/town share of the fee, divide the total fee in half and add $12.50. noifeetf.doc • Wetland Fee Transmittal Form • rev. 10/11 Page 1 of 2 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town F. Signatures and Submittal Requirements I hereby certify under the penalties of perjury that the foregoing Notice of Intent and accompanying plans, documents, and supporting data are true and complete to the best of my knowledge. I understand that the Conservation Commission will place notification of this Notice in a local newspaper at the expense of the applicant in accordance with the wetlands regulations, 310 CMR 10.05(5)(a). !further certify under penalties of perjury that all abutters were notified of this application, pursuant to the requirements of M.G.L. c. 131, § 40. Notice must be made by Certificate of Mailing or in writing by hand delivery or certified mail (return receipt requested) to all abutters within 100 feet of the property line of the project location. 1. Signature of Applicant 4. Date 3. Signature of Property Owner (if different) 5. Signature of Representative (if any) 6. Date For Conservation Commission: Two copies of the completed Notice of Intent (Form 3), including supporting plans and documents, two copies of the NOI Wetland Fee Transmittal Form, and the city/town fee payment, to the Conservation Commission by certified mail or hand delivery. For MassDEP: One copy of the completed Notice of Intent (Form 3), including supporting plans and documents, one copy of the NOI Wetland Fee Transmittal Form, and a copy of the state fee payment to the MassDEP Regional Office (see Instructions) by certified mail or hand delivery. Other: If the applicant has checked the "yes" box in any part of Section C, Item 3, above, refer to that section and the Instructions for additional submittal requirements. The original and copies must be sent simultaneously. Failure by the applicant to send copies in a timely manner may result in dismissal of the Notice of Intent. wpaform3.doc • rev. 6/18/2020 Page 9 of 9 4 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands WPA Form 3 - Notice of Intent Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by MassDEP: MassDEP File Number Document Transaction Number Watertown City/Town F. Signatures and Submittal Requirements I hereby certify under the penalties of perjury that the foregoing Notice of Intent and accompanying plans, documents, and supporting data are true and complete to the best of my knowledge. I understand that the Conservation Commission will place notification of this Notice in a local newspaper at the expense of the applicant in accordance with the wetlands regulations, 310 CMR 10.05(5)(a). !further certify under penalties of perjury that all abutters were notified of this application, pursuant to the requirements of M.G.L. c. 131, § 40. Notice must be made by Certificate of Mailing or in writing by hand delivery or certified mail (return receipt requested) to all abutters within 100 feet of the property line of the project location. 1. Signature of Applicant 2. Date 3. Signature of Property Owner (if different) 4. Date 5. Signature of Representative (if any) 6. Date For Conservation Commission: Two copies of the completed Notice of Intent (Form 3), including supporting plans and documents, two copies of the NOI Wetland Fee Transmittal Form, and the city/town fee payment, to the Conservation Commission by certified mail or hand delivery. For MassDEP: One copy of the completed Notice of Intent (Form 3), including supporting plans and documents, one copy of the NOI Wetland Fee Transmittal Form, and a copy of the state fee payment to the MassDEP Regional Office (see Instructions) by certified mail or hand delivery. Other: If the applicant has checked the "yes" box in any part of Section C, Item 3, above, refer to that section and the Instructions for additional submittal requirements. The original and copies must be sent simultaneously. Failure by the applicant to send copies in a timely manner may result in dismissal of the Notice of Intent. wpaform3.doc • rev. 6/18/2020 Page 9 of 9 Important: When filling out forms on the computer, use only the tab key to move your cursor - do not use the return key To calculate filing fees, refer to the category fee list and examples in the instructions for filling out WPA Form 3 (Notice of Intent). Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands NOI Wetland Fee Transmittal Form Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 A. Applicant Information 1. Location of Project: a. Street Address b. City/Town c. Check number d. Fee amount 2. Applicant Mailing Address: a. First Name b. Last Name c. Organization d. Mailing Address e. City/Town f. State g. Zip Code h. Phone Number i. Fax Number j. Email Address 3. Property Owner (if different): a. First Name b. Last Name c. Organization d. Mailing Address e. City/Town f. State g. Zip Code h. Phone Number i. Fax Number j. Email Address B. Fees Fee should be calculated using the following process & worksheet. Please see Instructions before filling out worksheet. Step 1/Type of Activity: Describe each type of activity that will occur in wetland resource area and buffer zone. Step 2/Number of Activities: Identify the number of each type of activity. Step 3/Individual Activity Fee: Identify each activity fee from the six project categories listed in the instructions. Step 4/Subtotal Activity Fee: Multiply the number of activities (identified in Step 2) times the fee per category (identified in Step 3) to reach a subtotal fee amount. Note: If any of these activities are in a Riverfront Area in addition to another Resource Area or the Buffer Zone, the fee per activity should be multiplied by 1.5 and then added to the subtotal amount. Step 5/Total Project Fee: Determine the total project fee by adding the subtotal amounts from Step 4. Step 6/Fee Payments: To calculate the state share of the fee, divide the total fee in half and subtract $12.50. To calculate the city/town share of the fee, divide the total fee in half and add $12.50. noifeetf.doc • Wetland Fee Transmittal Form • rev. 10/11 Page 1 of 2 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands NOI Wetland Fee Transmittal Form Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 B. Fees (continued) Step 1/Type of Activity Category 3 Step 2/Number Step Step 4/Subtotal Activity of Activities 3/Individual Fee Activity Fee 1 $1050 1050 X1.5RFA=1,575 Step 5/Total Project Fee: 1,575 Step 6/Fee Payments: Total Project Fee: State share of filing Fee: City/Town share of filling Fee: $1,575 a. Total Fee from Step 5 $775 b. 1/2 Total Fee less $12.50 $800 c. 1/2 Total Fee plus $12.50 C. Submittal Requirements a.) Complete pages 1 and 2 and send with a check or money order for the state share of the fee, payable to the Commonwealth of Massachusetts. Department of Environmental Protection Box 4062 Boston, MA 02211 b.) To the Conservation Commission: Send the Notice of Intent or Abbreviated Notice of Intent; a copy of this form; and the city/town fee payment. To MassDEP Regional Office (see Instructions): Send a copy of the Notice of Intent or Abbreviated Notice of Intent; a copy of this form; and a copy of the state fee payment. (E -filers of Notices of Intent may submit these electronically.) noifeetf.doc • Wetland Fee Transmittal Form • rev. 10/11 Page 2 of 2 Notice of Intent Commercial Redevelopment MARCH 2021 PREPARED FOR Maximos Hatziliades PREPARED BY SWCA Environmental Consultants NOTICE OF INTENT COMMERCIAL REDEVELOPMENT Prepared for Maximos Hatzilliades 71 Arlington Street Watertown, Massachusetts 02472 Prepared by SWCA Environmental Consultants 15 Research Drive Amherst, Massachusetts 01002 (413) 256-0202 www.swca.com SWCA Project No. 59467 March 2021 Notice of Intent Commercial Redevelopment CONTENTS 1 Introduction 1 2 Site Description 2 3 Site History 3 4 Release Abatement Measure Plan 4 5 Jurisdictional Resource Areas 5 5.1 Natural Heritage and Endangered Species Program 5 5.2 Outstanding Resource Waters and Areas of Critical Environmental Concern 6 6 Proposed Project 6 6.1 Building Construction 8 6.2 Stormwater Management 9 7 Regulatory Compliance 10 7.1 Resource Area Impacts 10 7.2 Bank 12 7.3 Bordering Vegetated Wetland 12 7.3.1 Performance Standards 12 7.4 Land Under Water 13 7.5 Riverfront Area 14 7.5.1 Performance Standards 15 7.5.2 Riverfront Area Mitigation 15 7.5.3 Alternatives Analysis 16 7.6 Wildlife Habitat Evaluation 18 8 WaterTown Wetland Ordinance 19 9 Summary 20 10 References 21 Notice of Intent Commercial Redevelopment Appendices Appendix A. Appendix B. Appendix C. Appendix D. Appendix E. Appendix F. Appendix G. Figures Proposed Mixed Use Building Plan Set, Engineering Alliance, Inc. Filing Fee Checks, Fee Transmittal Form, Abutters List, Abutter Notifications, Aaffidavit of Mailing Draft Release Abatement Measure Plan Order of Resource Area Delineation (ORAD) plan approved, Sheet 1 Stormwater Report and Calculations Detailed Wildlife Habitat Evaluation Tables Table 1. Summary of Proposed Impacts 10 Table 2. General Provisions of the Wetlands Protection Act (310 CMR 10.03) 11 Table 3. General Provisions of Inland Resource Areas (310 CMR 10.53) 12 Table 4 Performance Standards for Bordering Vegetated Wetland (310 CMR 10.55(4)) 13 Table 5. Redevelopment within Previously Developed Riverfront Area (310 CMR 10.58(5)) 15 Table 6. Restoration Conformance 16 Table 7. Watertown Wetland Ordinance Compliance 19 Notice of Intent Commercial Redevelopment 1 INTRODUCTION On behalf of Maximos Hatziliades (Applicant), SWCA Environmental Consultants (SWCA) has prepared this Notice of Intent (NOI) for redevelopment work and construction of a ±7,150 square foot (sf) two- story mixed use commercial building on the ±1.42 -acre Parcel 1236-2-0 located at 0 Arlington Street in Watertown, Massachusetts (Williams parcel). In 2019, SWCA prepared an Abbreviated Notice of Resource Area Delineation (ANRAD) for the Williams parcel and for a second parcel, Parcel 1510-1-0, located to the east, the location of Sawins Pond. The Applicant owns both parcels, but the work proposed in this NOI is only for work proposed on the Williams parcel. The Williams parcel is illustrated on Figure 1 the U.S. Geological Survey (USGS) Topographic Map and Figure 2 the Aerial Map provided in Appendix A. The civil design plan illustrating the proposed project was developed by Engineering Alliance, Inc. (Engineering Alliance) and is presented in Appendix B. This NOI is being submitted in compliance with the Massachusetts Wetland Protection Act (MGL c.131 §40) (WPA) and its implementing Regulations (310 CMR 10.00 et seq.) and the Watertown Wetland Protection Ordinance (Wetland Ordinance) and its Rules and Regulations for the Administration of the Watertown Wetland Ordinance of 2008 (revised 2012). The project proposes to construct the commercial building as part of redeveloping this degraded site and to restore resource areas at the Williams parcel. The project will allow the Applicant to develop a commercial building, restore degraded riverfront areas (RFA) and wetlands, and provide limited clean-up to soil when contaminants are encountered. The project is being proposed as a redevelopment project to improve this degraded parcel in accordance with 310 CMR 10.58(5). The Williams parcel was formerly owned by the Hood Rubber Company that utilized the parcel in the early 1900's and later the B.F Goodrich Company, which utilized the parcel in 1929 (Vineyard Engineering & Environmental Services, Inc. 2008b). The parcel has also been degraded and impacted by off -site sources that have been documented as occurring in the 1970's (e.g., petroleum oil) and polychlorinated biphenyls (PCBs) in 1983 (Vineyard 2008a). These contaminants were reported to have been discharged to the Williams parcel and the downgradient Sawins Pond parcel through catch basin and off -site sources (Vineyard 2008b). Work at the Williams property will include: • Restore RFA functions and values associated with the stream present at this parcel. • Restore the condition and quality of the Bordering Vegetated Wetlands (BVWs) currently impacted by contaminants, invasive species, debris, and trash. • Provide limited cleanup of contaminants encountered during construction in accordance with a Release Abatement Measure Plan (RAM). • Improve stormwater quality, and ultimately stream quality, by repairing the headwall and installing a stormwater water quality structure at the existing 24 -inch culvert at the west side of the site. While temporary impacts to resource areas will occur, restoration and redevelopment of this degraded area will improve the aesthetics of the site as well as improve the quality of the jurisdictional resources at the Williams parcel resulting in a net ecological benefit and improve the capacity of the RFA to better protect the interests of the WPA. The proposed work will impact ±4,215-sf of BVW, which will be mitigated by constructing ±6,930-sf of BVW on the southern portion of the parcel. The WPA Regulations have a 100 -foot Buffer Zone to BVW, and the Wetlands Ordinance regulates a 150 -foot Buffer Zone to BVW. Because the site is only ±1.42 acres, the proposed building and mitigation will all be located within these buffer zones. The Wetlands Ordinance also has a 50 -foot No Build Zone to BVW, which the Applicant is requesting a waiver from so the building and mitigation areas can be constructed. 1 Notice of Intent Commercial Redevelopment A perennial stream, locally referred to as Williams Brook, is also present on the Williams parcel. In accordance with the Regulations and Wetlands Ordinance a 200 -foot RFA is associated with this stream that extends upland from the mean annual high-water line (MAHWL). The proposed construction and mitigation will also be located within this 200 -foot RFA. There is no buffer zone associated with RFA. Pursuant to the Regulations and the Watertown Conservation Commission (Commission), four paper copies and an electronic copy of this NOI are being submitted to the Commission, with an electronic copy to the Massachusetts Department of Environmental Protection (MassDEP) using the eDEP filing system. The project is proposed as a Category 3.b activity, construction of any commercial development, with a fee of $1,575.00, which includes the 1.5 multiplier for projects within RFA. The City's portion of the fee is $800.00 and is enclosed with this NOI. The Commonwealth's share of $775.00 is submitted with the eDEP Wetlands Transmittal Fee form. Copies of the checks and transmittal form are provided in Appendix C. In accordance with the Wetlands Ordinance, SWCA will provide written notification by certified mail to all abutters whose lot is within 300 feet from the site. The notification will state where the NOI can be reviewed. At the time of the filing, SWCA will also notify the Offices of the Town Council, Town Planning Board and Board of Appeals, Board of Health, Building Inspector, Town Manager, and Department of Public Works that the NOI has been submitted. Copies of the NOI will also be provided to these Town Departments and it is understood they have fourteen days to provide written comments to the Watertown Commission. The certified list of abutters, abutter notification, and the affidavit of mailing are included in Appendix C. 2 SITE DESCRIPTION The Williams parcel is located in a mixed industrial, commercial, and residential area of Watertown and is currently vacant and wooded with ±7,930-sf of BVW present in association with a perennial stream, locally referred to as Williams Brook. The parcel is zoned as Regional Mixed Use (RMUD) and not located within any overlay districts. The parcel is ±1.42 acres and located on the west side of Arlington Street. Elm Street and the Watertown Mall are to the west. Upstream drainage into the stream is entirely derived from roadways, parking lots, a major shopping center (including a Target Superstore), and urban runoff that enters the site by way of a large culvert from under Elm Street. Flow from the stream on the Williams parcel continues under Arlington Street through a series of concrete box culverts, including a double -box concrete bay (2 ±60 -inch box culverts) and a ±48 -inch stormwater overflow concrete box culvert. The stream remains underground for ±110 linear feet under Arlington Street before daylighting on the eastern side of the Street and into Sawins Pond. The entirety of the Williams parcel slopes inward from the surrounding area toward the stream, and elevations range from ±24 feet at the perimeter down to ±10 feet at the discharge point and culvert at Arlington Street. Much of the wooded upland area on the Williams parcel is along the left descending bank of the stream (the right and left bank of a stream is determined while facing downstream) and consists of steeply graded fill. Existing vegetation on the uplands consists of overgrown field, scrub shrub, and mixed tree species including, but not limited to silver maple (Acer saccharinum), northern catalpa (Catalpa speciosa), box elder (Acer negundo), staghorn sumac (Rhus typhina), annual mugwort (Artemisia annua), annual ragweed (Ambrosia artemisiifolia), and American pokeweed (Phytolacca americana). 2 Notice of Intent Commercial Redevelopment 3 SITE HISTORY The Williams parcel is formerly the site of Williams Pond, which is no longer present. The pond was created in the late 1800's along with Sawins Pond located immediately downstream of Arlington Street. The ponds were developed by George W. Sawin as part of a resort for recreational purposes and can be seen in historical maps dating to at least 1889. When the resort went out of business in the early 1900's, the ponds were purchased by the Hood Rubber Company (Hood). The Hood Rubber Company property is described as being extensive and encompassing the Sawins and Williams Pond and extending west between Arsenal Street on the south and Dexter Street to the North (Vineyard 2008a). Hood became the largest manufacturer of rubber products in the world at one time and used the ponds as a source of cooling water for the plant and as a disposal location for their wastewater. The Hood Rubber Company was later acquired by B.F. Goodrich Corporation in 1929. Contaminant releases have been reported at the Williams parcel from as far back as 1976 when an oil spill occurred and in 1983 with the report of a release of transformer fluid containing PCBs (Vineyard 2008b). The parcel was periodically monitored following this PCB release until March of 1983. Sampling of the Williams parcel was undertaken by the City of Watertown in 1984, when the City considered purchasing the parcel. Results of the sampling indicated elevated levels of metals and petroleum in samples collected from Williams Pond and Sawins Pond (Vineyard 2008b). Following the City's sampling, the Applicant contracted with an engineering and testing company to collect surface water samples and groundwater samples at the site. Petroleum constituents (i.e., benzene, toluene, ethylbenzene, and xylene) were detected in the groundwater and surface water. Additional sampling was undertaken by the engineering and testing company in 1988. The results of the testing in late the 1980s concluded that petroleum, semi -volatile organic compounds (SVOCs) and PCBs were detected in sediments and were attributable to the municipal storm drain system which discharges surface water runoff into the Williams Pond and Sawins Pond from an area of approximately 640 acres (Vineyard 2008b). Continued investigations at the Williams parcel were completed by another consulting firm in the later 1990s in response to changes to the environmental regulations that took place in 1993. Water samples were collected from wells, and sediment samples collected. Reports prepared by Vineyard Environmental Services, Inc. (Vineyard) indicate continued reporting of Volatile Organic Compounds (VOCs), SVOCs, and metals from groundwater, soil and/or sediments. However, Vineyard reported that documents reviewed did not illustrate the locations where samples were collected (Vineyard 2008b). The Williams parcel is identified as Release Tracking Number (RTN) 3-0457, which was issued by the MassDEP, Bureau of Waste Site Cleanup. Comprehensive site assessments have been conducted in association with this RTN and the parcel has been described as having discarded debris along the northern portion of the parcel. The debris included metal scraps, an automobile fuel tank, metal jars, cans, automobile upholstery, tires, fans, empty 5 -gallon plastic buckets, glass bottles, a corroded 55 -gallon drum, tubing, and tricycles (Vineyard 2008a). Comprehensive investigations were conducted by Vineyard, which culminated with a Phase II Comprehensive Site Assessment Report and Response Action Outcome Statement (RAO) in 2008. Vineyard performed soil and sediment sampling at the parcel to evaluate the nature and extent of contaminants at the Williams parcel. The results of soil sampling at the parcel indicated the presence of beryllium, chromium, and nickel at ±4 to 6 feet below grade surface in soils collected from the southeast side of the parcel (Vineyard, 2008a). Additional soil sampling was conducted in 2008 at this same location to evaluate the extent of the metals detected in 2007. Concentrations of nickel ranged from 7.6 milligram/kilogram (mg/kg) to 45 mg/kg. Beryllium concentrations ranged from 0.33 mg/kg to 2.6 3 Notice of Intent Commercial Redevelopment mg/kg. Both nickel and beryllium were above the MassDEP's reportable conditions in 2006 (Vineyard 2008a). The RAO ultimately filed identified the contaminants of concern (COCs) at this parcel to be benzo(a)pyrene, xylene, and three metals (nickel, beryllium, and chromium) in soil. The RAO issued is a class B-1 RAO, indicating that assessed conditions approach background without remediation (Vineyard 2008a). Sediment samples collected by Vineyard during their comprehensive investigations identified PCB concentrations collected from upgradient sediment samples on the Williams parcel as ranging from 620 to 3,240 micrograms per kilogram (µg/kg). These samples were collected from 0 to 3 feet. Sediment samples collected downstream on the parcel, from a depth of 1 to 3 feet ranged from 4.7 µg/kg to 570 µg/kg. Lower concentrations of PCBs were detected nearer the sediment surface (Vineyard 2008a). Sediment samples collected from the Williams parcel contained concentrations of lead, nickel, copper, cadmium, mercury, and zinc. These samples also had concentrations of petroleum constituents, with Extractable Petroleum Hydrocarbons (EPH) concentrations present. SVOCs were also present in the sediments collected from the parcel. These COCs were considered to be the result of off -site sources and a downgradient property status (DPS) submittal was filed with MassDEP in 2007 for both the Williams Parcel and Sawins Pond Parcel. The DPS was limited to Sawins Pond and the wetland areas. RTN 3- 29157 was created for the DPS to sperate the ponds and wetland from RTN 3-0457. MassDEP completed an audit of the documents submitted for the Williams parcel and issued a Notice of Audit findings on April 1, 2010, for the DPS Opinion and RAO Statements associated with RTNs 3-0457 and 3-29157. The audit assigned RTN 3-29157 to the DPS portion (ponds and wetlands) of RTN 3-0457. The audit did not identify any deficiencies in the RAO or DPS and concluded that the property owner, The Applicant, was not required to take any additional action. 4 RELEASE ABATEMENT MEASURE PLAN The historical uses documented at the Williams parcel, in addition to documented off -site sources shown to have impacted the Williams parcel, have led to the degradation of the soil, sediment, and water quality. The Williams parcel has a closed regulatory status with MassDEP following their April 2010 audit. Therefore, response actions can be undertaken during the proposed building construction and residual contamination from historic activities will be managed accordingly at that time under a Release Abatement Measure (RAM) plan. These response actions will be undertaken at the Williams parcel in accordance with the Massachusetts Contingency Plan (MCP), section 310 CMR 40.1067, Remedial Actions after a Permanent or Temporary Solution Statement has been submitted to MassDEP. For this project, a RAM plan will be prepared and filed with MassDEP. For permitting this project, a draft RAM plan has been developed by the Alliance Environmental Group and is presented in Appendix D. This plan will be updated and finalized as the project is initiated. The draft RAM plan will be formatted in accordance with 310 CMR 40.0440 and include the following: • Name, address, telephone number, and relationship to the site of the person performing the RAM. • A description of any release or threat of release, site conditions, and surrounding receptors. • Objectives of the plan, implementation schedule for the RAM and any associated plans. • A statement as to whether Remediation Waste, Remedial Wastewater, and or Remedial Additives will be excavated, collected, stored, treated discharged, or otherwise managed. 4 Notice of Intent Commercial Redevelopment • Seal and signature of the Licensed Site Professional preparing the RAM. • The certification required at 310 CMR 40.04425(5), if greater than 1,500 cubic yards of Remediation Wastes, are to be generated and managed at the disposal site. • Any additional information MassDEP requires. The RAM plan will be submitted to MassDEP prior to construction and following additional characterization of soil and groundwater conditions in the proposed footprint of the building and construction areas and wetland mitigation areas. As part of the RAM, two days of drilling at the site will be conducted to perform one single boring to 60 feet below grade (or auger refusal) with standard penetration testing (SPT) soil sampling protocol. In addition, three to four borings will be performed to 20 feet below grade with SPT soil sampling protocol. Four 20 -foot or less deep 2 -inch diameter monitoring wells will be completed for groundwater gauging and chemical testing. Soil samples will be analyzed for grainsize and testing of general MassDEP quarry reuse facility parameters VOCs, Poly Aromatic Hydrocarbons, Total Petroleum Hydrocarbons, metals -12, Toxicity Characteristic Leaching Procedure for lead (TCLP-Pb), Flashpoint/Reactivity/Conductivity/pH). Groundwater samples will be submitted for laboratory testing of Volatile Petroleum Hydrocarbons, EPH, metals -13, dissolved iron, and total suspended solids. Sediment samples will be analyzed for similar parameters. The results of the sampling effort will be included with the RAM and used to determine soil and water management, as well as geotechnical information required for building. 5 JURISDICTIONAL RESOURCE AREAS Jurisdictional resources were delineated and an ANRAD was submitted to the Commission and MassDEP. An Order of Resource Area Delineation (ORAD) was issued by the Commission on July 17, 2019 (Appendix E). Sheet 1, ANRAD Plan, illustrates the jurisdictional resources approved for the Williams parcel in the ORAD. These resources include Land Under Water (LUW), Bank, and RFA associated with the stream as well as BVW. Bordering Land Subject to Flooding is not present at the Williams parcel as illustrated on Figure 3, the 100 -year floodplain (Federal Emergency Management Agency [FEMA] 2021). 5.1 Natural Heritage and Endangered Species Program As part of the ANRAD submittal, SWCA reviewed the Massachusetts Geographic Information System (MassGIS) database to determine if the project was located within or adjacent to areas designated as Natural Heritage and Endangered Species Program (NHESP) Priority Habitats of Rare Species, Estimated Habitats of Rare Wildlife, certified vernal pools, or potential vernal pools. The NHESP database was again reviewed as part of this submittal. As shown on the NHESP figure (Figure 4, Appendix A), there are no mapped certified or potential vernal pools for this site and no mapped Priority or Estimated Habitats (MassGIS 2017). 5 Notice of Intent Commercial Redevelopment 5.2 Outstanding Resource Waters and Areas of Critical Environmental Concern SWCA reviewed the MassGIS data layers to determine if the project location coincides with Areas of Critical Environmental Concern (ACECs) or Outstanding Resource Waters (ORWs) as part of the ANRAD and as part of this NOI submittal. ACECs are areas designated in Massachusetts that receive special recognition because of the quality, uniqueness, and significance of its natural and/or and cultural resources. ORWs are watershed areas that have been classified as such under the Massachusetts Surface Water Quality Standards. These watersheds constitute an outstanding resource as determined by their important socioeconomic, recreational, ecological and/or aesthetic values and have been identified so that they may be protected and maintained. SWCA determined that neither ORWs nor ACECs are associated with the project area or parcel (MassGIS, 2009 and 2010). 6 PROPOSED PROJECT The project proposes the construction of a mixed -use building accessed from Arlington Street and Elm Street. The civil design plan set was developed by Engineering Alliance and is presented in Appendix B. The jurisdictional resource areas approved by the Commission under the ORAD plan were incorporated into the civil design plan set so that temporary and permanent impacts could be determined. The Cover Sheet (C -O) to the plan set illustrates the proposed building, parking areas, and access routes from Arlington and Elm Streets. Existing conditions and erosion controls are illustrated Sheet C-1. SWCA has also prepared a wetland mitigation plan as illustrated on Sheets L-1 and L-2 in Appendix B. The project proposes the following: • Construct a new building in accordance with the Watertown Zoning Ordinance (amended December 11, 2018) for RMUD designated parcels. • Improve the aesthetics of the parcel. • Repair the headwall at the west side of the site (Elm Street) and install a water quality structure at the discharge point between the existing culvert and BVW to improve water quality of the on -site stream. • Restore and enhance the functions and services of the existing BVW and RFA by removing invasive species, removing urban refuse where and to the extent practicable, and planting native species. • Address contaminated soils, when encountered, under a RAM plan. • Reuse contaminated soil on -site or dispose of contaminated soil in accordance with a RAM plan. • Create ±6,390 square feet (±0.15 -acre) of on -site and in -kind wetland mitigation (±11% of the parcel). • Improve the features and functions of on -site wildlife habitat. The project is being proposed to develop a commercial building in Watertown on a parcel zoned as RMUD and not located within any sensitive overlay districts. The building has been proposed in accordance with the land use table for a parcel zoned RMUD, and no zoning variances or waivers to the requirements are being requested. The parcel has limited space and the building, parking, and associated features have been designed to avoid and minimize impact to the maximum extent practicable. Where impacts are unavoidable, compensatory mitigation is proposed. 6 Notice of Intent Commercial Redevelopment The intent of RUMD or Regional Mixed Use District has been to enact, assist, and promote the conversion of the Arsenal Street Corridor. It was established to promote mixed use development and enhance the quality of life by promoting the development of a high -quality public realm (Watertown Zoning Ordinance 2018). The project is consistent with the RMUD and will accomplish the following: 1. "Facilitate transformative development consistent with Watertown's goal to promote mixed use development that includes a mix of larger and smaller scale retail, office, hospitality, multi family residential and research and development uses, and that serves regional demand." This project is proposed in support of this objective. It provides a small-scale mixed -use development for retail and warehouse use. It is also proposing a project that has less adverse effects on the interests of the WPA and the Ordinance than previously proposed projects for this parcel. 2. "Allow development at a density, scale and character appropriate to define a corridor that is a major gateway for the Town..." To restate, this project is being proposed in support of the RMUD objectives. It is also proposing a project that has less adverse effects on the interests of the WPA than previously proposed projects for this parcel. 3. "Enhance the quality of life, including promoting the development of a high quality public realm..." Development proposed is to be aesthetically pleasing and consistent with Watertown's Design Guidelines, provides a pedestrian environment, and promotes frontage that create connections to surrounding neighborhoods and the Charles River. Again, this project is being proposed in support of the RMUD objectives. 4. "Enhance publicly available open space networks by connecting to and integrating with adjacent state, municipal and privately -owned parcels, where appropriate, encouraging private land owners to permanently preserve open space, being sensitive to the Charles River reservation, and furthering private remediation and public access to Sawins Brook and Pond and Williams Pond." The Williams parcel has been contaminated with metals, petroleum, and other contaminants of concern as discussed in Section 3. The project proposes a building that incorporates mitigating for, and enhancing of, BVW and RFA at the site that will remain as open space. Prior to and during construction, soil, sediment, and groundwater samples will be collected and analyzed. The results of which will guide the cleanup of site conditions in accordance with a RAM plan (Section 4). The project provides for a building as promoted in the RMUD district, addresses contamination, and mitigates for and enhances wetland impacts. S. "Respect historic assets and architectural features that help define the character of the community and encourage preservation and restoration of historic buildings." The project does not impact historic buildings. 6. "Incentivize real estate investment that will enhance the diversity and maximize the value of the Town's tax base." The project provides a building that will maximize the Town's tax base, while proposing a project that has less adverse effects on the interests of the WPA than previously proposed projects for this parcel. 7. "Use 'green' building practices that encourage energy efficiency, manage stormwater, protect the riparian habitat, and are planned, designed, constructed, and managed to minimize adverse environmental impacts." 7 Notice of Intent Commercial Redevelopment The project has been designed to be efficient and manage stormwater in a manner that reduces contaminants from entering the BVW and stream on this parcel. Previous projects proposed for this site had greater impacts to jurisdictional resource areas, and this project has been designed to reduce impacts and mitigate for impacts to BVW and RFA. The project proposes restoring the functions and services of BVW and RFA and reducing the number of invasive species present at the parcel. Existing vegetation in the BVW includes silver maple, catalpa, broadleaf cattail (Typha latifolia), common rush (Juncus effusus), jewelweed (Impatiens capensis), Japanese knotweed (Reynoutria japonica), and Asian bittersweet (Celastrus orbiculatus). Invasive species dominate much of this surrounding area and site, including the upland areas. With the exception of the garden area, the uplands at the site are dominated by mixed tree species including, but not limited to: silver maple, catalpa, box elder. This project proposes the removal of invasive species within select areas of the mitigation and planting native species. 8. "Encourage development that accommodates and promotes multi -modal access, transit between the Arsenal Corridor and mass transit stops, management of transportation demand to reduce automobile use, and mitigates deterioration of the level of affected intersection service for all transportation modes ". The project has been designed to accommodate transit in the Arsenal Corridor. Parking is available in association with the proposed building use. Access will be one way onto the parcel, with the entrance off Arlington Street and exit limited to E1m Street. 6.1 Building Construction The proposed building will be a two story, ±7,150 sf building constructed on a concrete slab floor, constructed in the northwest portion of the Williams parcel. The building will include ±3,500 sf of retail space and ±3,650 sf of warehouse space on the first floor, and ±7,150 sf of warehouse space on the second floor. The property will be accessed by driveways on both E1m Street and Arlington Street. One- way entry will be provided by way of a ±16 -foot driveway from Elm Street. A two-way entry will be provided by way of a ±24 -foot driveway from Arlington Street. Parking will be associated with the driveway from Arlington Street, and vehicles will only exit the property onto Arlington Street (Engineering Alliance 2021). During construction, a combination of silt fence and haybale barriers (Sheet D-2) will be utilized with BioWattle erosion controls when constructing the mitigation areas (Sheet L-2). The construction of the building and portions of the driveway/parking area will impact ±4,215 sf of BVW as shown on Sheet C-2. Fill will need to be placed in this area of wetland to construct the building as the elevations at the northwest and west side of the Williams parcel range from ±19 feet to ±11 feet in elevation and slope toward the stream. The impact to this portion of the wetland will be replicated by constructing a total of ±6,930 sf of wetland on -site to off -set these impacts. Three replication areas are proposed, with one at the southwest side of the existing stream and the other two located along the southern side of the stream. These areas are illustrated on the Site Layout Plan, C-2. Drainage at the site enters the Williams parcel upstream from an existing 24 -inch culvert that supports the existing stream and adjacent BVW. The headwall for this culvert is in disrepair and will be repaired by installation of a water quality structure at the discharge point between the existing culvert and BVW. A new headwall will also be constructed as part of the wetland replication. 8 Notice of Intent Commercial Redevelopment 6.2 Stormwater Management Engineering Alliance prepared drainage calculations and a stormwater management plan in support of this project. Drainage calculations for existing calculations were prepared for the 2, 10, 25, and 100 -year Type II 24 -hour storm event (Engineering Alliance 2020). The existing conditions drainage analysis was comprised of one watershed area that drains by way of surface flow to the 6 -foot wide culvert. The results for these storm events were calculated to be 2.21 cubic feet per second (cfs), 4.49 cfs, 5.96 cfs, and 8.23 cfs, respectively (Engineering Alliance 2021). A copy of the stormwater report is presented in Appendix F. The proposed conditions, including construction of the building, driveways, parking areas, and landscaping areas was then calculated in the same manner as existing conditions for the same storm events. The results were 1.56 cfs, 3.06 cfs, 4.01 cfs, and 6.69 cfs and do not exceed existing conditions rates (Engineering Alliance 2021). As part of managing stormwater, the project will include facilities to attenuate peak flows generated by all storm events up to and including the 100 -year storm event. These facilities include a porous asphalt parking area that includes an 18 -inch crushed stone bed (Engineering Alliance 2020). Treebox filters have also been proposed at low points in the porous asphalt parking area as emergency overflow spillways in the event of extreme storms and or failure of the asphalt. The treebox filter drains will discharge to an overflow manhole and ultimately through an overflow pipe daylighting beyond the proposed retaining wall along the parking area (Engineering Alliance 2021). The Applicant has developed the project in accordance with standards established by the Department. The drainage calculations and a stormwater management plan developed in support of this project utilized drainage calculations for the 2, 10, 25, and 100 -year Type II 24 -hour storm event (Engineering Alliance 2020). Low Impact Development measures are included, specifically, treebox filters are included in the design and porous asphalt will be utilized. Engineering Alliance has provided the MassDEP checklist for stormwater with their report in Appendix F. The following summarizes the Project's compliance with the Massachusetts Stormwater Standards. Standard 1— No New Untreated Discharges. There are no new untreated discharges, outlets have been designed so there is no erosion or scour to wetlands and waters of the Commonwealth, supporting calculations specified in Volume 3 of the Massachusetts Stormwater Handbook included. Standard 2 — Peak Rate Attenuation. This is met with calculations showing that the post -development peak discharge rates do not exceed pre -development rates for the 2 -year, 10 -year and 24 -hour storm. Calculations also show the post -development peak discharge rates do not exceed pre -development rates for the 100 -year and 24 -hour storm. Standard 3 — Recharge. Recharge standards are met with required recharge volume calculations provided and sizing the infiltration Best management Practices (BMP) is based on static methods. Recharge BMPs have been sized to infiltrate the required recharge volume and calculations showing that the infiltration BMPs will drain in 72 hours are provided. Standard 4 — Water Quality. Standards are met as a long-term pollution prevention plan is provided with the Stormwater Report in Appendix F. Calculations documenting that the treatment train meets the 80% Total Suspended Solids (TSS) removal requirement and, if applicable the 44% TSS removal pretreatment requirement, are provided with the Stormwater Report. In addition, BMPs sized are based on the 1/2 -inch or 1 -inch Water Quality Volume and calculations are provided. Also, the Applicant proposes to use proprietary BMPs. 9 Notice of Intent Commercial Redevelopment Standard 5 — Land Uses with Higher Potential Pollutant Loads. This is met. The National Pollutant Discharge Elimination System Multi -Sector General Permit does not cover the subject Land Use. Standard 6 — Critical Areas. Not applicable. This project will not discharge near or directly to any critical areas. Standard 7 — Redevelopments and other Projects Subject to the Standards only to the maximum extent practicable. This is a redevelopment and is subject to the standards only to the maximum extent practicable. Standard 8 — Construction Period Pollution Prevention and Erosion and Sedimentation Control. This report is included with the Stormwater Report. This project is not covered by a NPDES Construction General Permit since the project proposes less than 1 acre of disturbance. Standard 9 — A Operation and Maintenance Plan. A plan is provided with the Stormwater Report. Standard 10 — Prohibition of Illicit Discharges. An illicit discharge compliance statement is included with the stormwater checklist in the Stormwater Report. 7 REGULATORY COMPLIANCE 7.1 Resource Area Impacts The site is ±1.42 acres and all work proposed will be within areas regulated by the WPA as well as the Wetlands Ordinance. Site work will be located entirely in the WPA 100 -foot Buffer Zone to BVW as well as Wetlands Ordinance 150 -foot Buffer Zone to BVW and the 50 -foot no build zone. The proposed work will also be entirely within the RFA to the on -site stream as regulated by the WPA and Wetland Ordinance. Table 1 summarizes the project's proposed impacts to different resource areas on the site and Tables 2 and 3 summarize how the project complies with the provisions of the WPA. Table 1. Summary of Proposed Impacts Resource Area Impact (sf) Impact (acres) Percentage of Parcel RFA (0-100') 22,059 0.51 36% RFA (100'-200') 1,912 0.04 3% BVW 4,215 0.10 7% Buffer Zone to BVW (0-50') 18,768 0.43 36% Buffer Zone to BVW (50-100') 990 0.02 2% Buffer Zone to BVW (0-150') 19,758 0.45 38% Note: Resource areas overlap (*i.e., BVW and RFA). Impacts are not cumulative. 10 Notice of Intent Commercial Redevelopment Table 2. General Provisions of the Wetlands Protection Act (310 CMR 10.03) Citation Regulation Compliance 310 CMR 10.03(1)(a)1. The area is not significant to the protection of any of the interests identified in the WPA. Regulated resources within the project area have been significantly degraded from historic contamination and dumping. The proposed project includes mitigation and restoration of BVW and RFA, resulting in a net ecological uplift, thereby increasing that function and services of those resources and protecting the interests of the Act. 310 CMR 10.03(1)(a)2. Work within a resource area will contribute to the protection of the interests of the WPA. Ultimately the work will result in ecological enhancement of the BVW, improvement to RFA, and will better protect the resource areas. This will contribute to better protecting the interests of the WPA. 310 CMR 10.03(1)(a)3. Work within the buffer zone will contribute to the protection of the interests of the WPA. Work in the buffer zone will require temporary impacts; but, the area will ultimately be improved with the removal of invasive species, restoration of the area with native plants and trees, and removal of refuse. All of this will contribute to further protecting the interests of the WPA. 310 CMR 10.03(1)(b) Claims of work outside of any jurisdictional area impacting a jurisdictional area must demonstrate the work has had an adverse impact. Not applicable. 310 CMR 10.03(2) Credible evidence from a competent source to support the position taken when contesting MassDEP's position. Not applicable. 310 CMR 10.03(3) Installation of subsurface sewage disposal systems. Not applicable. 310 CMR 10.03(4) Presumption concerning point -source discharges. Not applicable. 310 CMR 10.03(5) Each resource area is presumed to be significant to the interests of the WPA. Resource area at the site are presumed to be significant, but highly degraded. Project improvements will improve the functions and services of BVW and RFA including enhancement of habitat quality, thereby protecting the interests of the WPA. 310 CMR 10.03(6) Presumption concerning the application of herbicides. Not applicable. 310 CMR 10.03(7)(a) Filing fees for NOls pursuant to the WPA. Copies of checks are included in Appendix C. The work meets the requirements of a Category 3.b activity, construction of any commercial development. 11 Notice of Intent Commercial Redevelopment Table 3. General Provisions of Inland Resource Areas (310 CMR 10.53) Citation Regulation Compliance 310 CMR 10.53(1) Significance of resource areas with no presumption to the protection of the interests of the WPA and work within the buffer zone reviewable under the Regulations. Not applicable. BVW and RFA, the two resource proposed to be impacted by the project, include presumptions in the Regulations at 310 CMR 10.55(3) and 310 CMR 10.58(3), respectively. 310 CMR 10.53(2) Proposed projects subject to a Restriction Order. Not applicable. 310 CMR 10.53(3) Projects that may be permitted as a limited Not applicable. project. 310 CMR 10.53(4) Ecological restoration limited projects. Not applicable. 310 CMR 10.53(5) Agricultural limited projects. Not applicable. 310 CMR 10.53(6) Limited projects related to footpaths, bike paths, Not applicable. and other pedestrian or nonmotorized vehicle access within RFA but outside of outside of other resource areas. 310 CMR 10.53(7) Operation and maintenance plans for public or Not applicable. private infrastructure. 310 CMR 10.53(8) Stream crossings. Not applicable. 7.2 Bank Bank at the parcel is associated with Williams Brook and will not be altered during construction of the building and associated proposed project features. Bank will not be impacted during the construction of new wetlands associated with the mitigation areas along the south side of the stream. This work is illustrated on Sheet L-1. 7.3 Bordering Vegetated Wetland BVW is located along the north and south sides of Williams Brook as illustrated on the project plans, and Sheet L-1. Vegetation within the BVW includes silver maple, catalpa, cattail, common rush, jewelweed, Japanese knotweed, and bittersweet. This project will impact 4,215 sf of BVW associated with the proposed building. Pursuant to 310 CMR 10.55(4)(b), work which results in the loss of up to 5,000 sf of BVW may be permitted if the area of loss is replaced in accordance with seven general standards. SWCA completed a Detailed Wildlife Habitat Evaluation at proposed BVW impact areas and quantified significant wildlife habitat features, if present, to be included in the wetland mitigation plan (see Section 7.3.2). 7.3.1 Performance Standards Performance standards for BVW are summarized in Table 4. . 12 Notice of Intent Commercial Redevelopment Table 4 Performance Standards for Bordering Vegetated Wetland (310 CMR 10.55(4)) Citation Regulation Compliance 310 CMR 10.55(4)(a) Work shall not destroy or otherwise impair any portion of said area. The proposed project will not impair but improve the area of BVW by removing invasive species and planting native species. 310 CMR 10.55(b)1. Surface are of the replacement area to be created shall be equal to that of the area that will be lost. The area to be lost is ±4,215 sf. The surface of the replacement area will be ±6,930 sf. A wetland replication area will be constructed at the southwest corner of the property, on the north side of the stream (±1,725 sf) and the remainder of the replication area will be on the south side of the stream (±5,025 sf). Mitigation plans with details and notes have been developed and presented as Sheet L-1 and L-2 in Appendix B. 310 CMR 10.55(b)2. Ground water and surface elevation of the replacement. The proposed replication areas will be located adjacent to the existing stream and existing BVW at similar elevations to the existing BVW. Restoration is to be conducted under the guidance of a Professional Wetland Scientist, as indicated on Sheet L-1. 310 CMR 10.55(b)3. Overall horizontal configuration and location of the replacement area. The proposed replication areas are adjacent to Williams Brook and replication areas are within 50 feet of the impacted wetlands. 310 CMR 10.55(b)4. Unrestricted hydraulic connection to the same water body or waterway as the lost area. The replacement area and the impact area are both hydrologically connected to Williams Brook on the Williams Parcel. The replication areas will be connected to the exiting BVW on the north and south side of the stream and will have unrestricted hydrologic connectivity to the stream. 310 CMR 10.55(b)5. Replacement area shall be located within the same general area of the water body or reach of the waterway as the lost area. The replacement area is in the same general area as the lost area, located within 50 feet of the impact area. It is adjacent to the existing onsite stream. 310 CMR 10.55(b)6. Reestablishment of native vegetation and vegetative stabilization of replacement area. Wetland mitigation notes are provided on Sheets L-1 and L-2. Note 3 specifies that a minimum of 75% cover with native species will be achieved within two years. Note 4 specifies that natural fiber compost filter tubes will be established around the replacement area. 310 CMR 10.55(b)7. Replacement area shall be provided consistent with other General Performance Standards for each resource area. This standard for each resource area will be provided in a manner consistent with the applicable resource standards. 310 CMR 10.55(c) Loss of BVW of less than 500 -square feet, is in a distinct linear configuration, and it is not reasonable to further avoid or minimize impacts. Not applicable. 310 CMR 10.55(d) Rare species Not applicable. The Project is not located within any mapped rare species habitat. 310 CMR 10.55(e) ACECs Not applicable. The Project is not located within an ACEC. 7.4 Land Under Water LUW is associated with Williams Brook at the parcel. No work will be conducted within LUW. Therefore, the performance standards at 310 CMR 10.56(4) are not applicable. 13 Notice of Intent Commercial Redevelopment 7.5 Riverfront Area The RFA at the Williams Parcel is associated with the Williams Brook and RFA encompasses the entire site as the parcel is only ±1.42 acres. The project is being proposed as a redevelopment project as outlined in 310 CMR 10.58(5) as it has been an abandoned dumping ground associated with the former property uses in the 1900s, with fill and debris present. As outlined in Section 3 the RFA has been degraded since owned by Hood in the 1920's. Water from Williams Parcel was used as cooling water for the Hood manufacturing plant and for disposal location for their wastewater (Vineyard 2008a). In the 1980's additional impacts to the Williams Parcel were related to petroleum and PCB releases to Williams Brook. The Williams Parcel has been used as a disposal area for junk as also discussed in Section 3. The Applicant is proposing the redevelopment of this RFA to reuse a portion of the degraded areas. The proposed work will improve the existing conditions and capacity of the RFA to protect the interests of the WPA and will result in an ecological uplift to the resource area. Enhancement of the RFA is proposed by removing trash and debris, addressing and disposing of contaminated soils, planting of native trees and other vegetation, and removal of invasive species. • Trash and debris at the site will be removed from the RFA including areas of RFA that occur as BVW. • Contaminated soils in RFA will be addressed and disposed of in accordance with the MCP. • The RFA on the north side of the site has no trees and is currently used as a garden. As part of the proposed restoration of RFA, native tree species will be planted at the north side. • The south side of Williams Brook will be planted with red maple trees (Acer rubrum) and American hornbeam (Carpinus caroliniana) as shown on Sheet L-1 and L-2. This will improve RFA conditions and wildlife habitat. • The work in the RFA also includes work within BVW and Bank. The proposed work will also improve the functions and services of these resource areas as well as the features and functions of wildlife habitat. Stormwater management will be an integral part of this project and conducted in accordance with the standards established by MassDEP (310 CMR 10.58(5)(b)). This is described in Section 7.2, which describes how stormwater for the project will be improved in this RFA. With the construction of the building and mitigation areas for BVW and uplands in the RFA, debris will be removed and properly disposed of off -site. Large diameter trees along the south side of the stream will be retained as much as practicable and new native tree species will be planted along the stream. Work will require grading and the addition of clean topsoil with sufficient organic matter for the mitigation areas and as part of the installation of native plantings in the existing BVW north of the stream. Sheet L-1 provides the list of plantings to be installed. Mitigation in the RFA will be supervised by a Professional Wetland Scientist that will be on site to verify the limits of work, check and confirm grades, confirm the proposed plantings are installed as required, and monitor construction. Plantings and mitigation areas will be monitored twice annually to assure that 75% cover with native plants is established at the site within 2 years of installation and to ensure invasive species do not re-establish. 14 Notice of Intent Commercial Redevelopment 7.5.1 Performance Standards As a redevelopment project, the proposed project is not subject to the General Performance Standards of the WPA under 310 CMR 10.58(4)(a -b). However, the project is subject to 310 CMR 10.58(c -d) as well as the provisions under 310 CMR 10.58(f) as summarized in Table 5. Table 5. Redevelopment within Previously Developed Riverfront Area (310 CMR 10.58(5)) Citation Regulation Compliance 310 CMR 10.58(4)(c) Alternatives Four alternatives were evaluated (see Section 7.5.3). 310 CMR 10.58(4)(d) No significant adverse effect. The project will not result in a significant adverse effect as the project proposes enhancement and restoration of the degraded RFA, meets the Massachusetts Stormwater Standards, does not impact important wildlife habitat features or functions (see Section 7.6), and will not impair groundwater or surface water. 310 CMR 10.58(5)(a) Work shall be an improvement of existing conditions. The proposed project includes enhancement of BVW and RFA including removal of invasive species, planting of native species, and removal debris, thereby resulting in a net ecological uplift. 310 CMR 10.58(5)(b) Stormwater management. Stormwater management has been provided according to the standards. See Section 6.2. 310 CMR 10.58(5)(c) Within 200 -foot RFA, no work closer to the river than existing conditions or 100 -feet. The existing conditions include abandoned dumping grounds, contamination, and degradation up to the Banks of the stream. The proposed project does not expand impacts within RFA beyond those existing conditions. 310 CMR 10.58(5)(d) Proposed work to be located outside of RFA or Not applicable. Work is being conducted in toward RFA boundary. accordance with 310 CMR 10.58(5)(f). 310 CMR 10.58(5)(e) Work shall not exceed degraded area. The entire work area is degraded from historic contamination and dumping of refuse. The proposed project will not expand these existing conditions and will improve existing conditions through mitigation of BVW impacts and enhancement of RFA in accordance with 310 CMR 10.58(5)(f). 310 CMR 10.58(5)(f) Restoration of on -site degraded RFA. Restoration is being proposed at a ratio of 1:1 as required. See Section 7.5.2 below. 310 CMR 10.58(5)(g) Mitigation on -site or in the same general area of Not Applicable. The proposed work conforms to the river basin. the applicable provisions at 310 CMR 10.58(5)(f). 310 CMR 10.58(5)(h) Prohibition of further alteration within RFA. The Certificate of Compliance will include a continuing condition. 7.5.2 Riverfront Area Mitigation The Applicant is proposing this project in accordance with 310 CMR 10.58(5)(f). In accordance with this section, the removal of any existing surficial debris and trash that includes hard plastic, metal, and lumber at the Williams Parcel. The project also proposes to retain larger mature trees located on the south side of the Williams Parcel and south side of the stream as practicable. The project has also been developed so that site grading will reduce runoff and increase infiltration, provide topsoil at a depth consistent with the natural conditions and seeding and planting will include native species (see Sheets L-1 and L-2). 15 Notice of Intent Commercial Redevelopment The proposed work will improve the existing degraded conditions of the RFA and will protect the interests of the WPA. In accordance with 310 CMR 10.58(5)(f), restoration of the RFA is proposed by: • Trash and debris at the site will be removed from the RFA including areas of RFA that occur as BVW. • Contaminated soils in RFA will be addressed and disposed of in accordance with the Massachusetts cleanup regulations, the MCP. • The RFA on the north side of the site has no trees and is currently used as a garden. As part of the proposed restoration of RFA, native tree species will be planted at the north side. • The south side of Williams Brook will be planted with red maple trees (Acer rubrum) and American hornbeam (Carpinus caroliniana) as shown on Sheet L-1 and L-2. This will improve RFA conditions and wildlife habitat. • The work in the RFA also includes work within BVW and Bank. The proposed work will also improve the functions and services of these resource areas as well as the features and functions of wildlife habitat. Table 6 outlines proposed measures address the ratio square feet of at least 1:1 of restored area to area of alteration not conforming to the 310 CMR 10.58(5)(f) criteria outlined above. Restoration shall include: Table 6. Restoration Conformance Restored Area 310 CMR 10.58(5)(f) Restoration Square Footage Conformance Criteria (1-4) Grading and Replanting Mitigation Areas 2,3,4 6,930 Trash removal, invasive removal, and revegetation 1,4 6,080 Trash removal and invasive removal (BVW) 1 9,925 Trash removal and invasive removal (Upland RFA) 1 8,030 Area of conforming RFA restoration 30,425 Area of non -conforming RFA alteration 23,971 1:1 Conformance ratio (conforming:non-conforming) 1.27:1 7.5.3 Alternatives Analysis The Applicant, together with environmental consultants, engineers, and hazardous waste contractors, has considered several alternative concept design plans for the Williams Parcel. As stated in Section 3 the site is degraded. Hazardous waste assessments, RAO and DPS for the Williams parcel were reviewed under an audit by MassDEP. The audit did not identify any deficiencies in the RAO or DPS and concluded that the property owner does not need to undertake further action. The Applicant's team has evaluated alternatives to develop a project at the Williams parcel and protect the interests of the WPA and Wetlands Ordinance. The alternatives evaluated include removal of debris, addressing limited removal of contaminants of concern encountered during construction, and the removal of these contaminants of concern. Addressing contaminants of concern as part of development is cost effective for the Applicant, under the guidelines of a RAM plan. Cleanup and direct disposal of contaminants at the site alone are very cost restrictive to the Applicant, as removal of soil can be upwards of $400/ton or more depending on the contaminant of concern. The regulatory method to address contaminants under a RAM plan is financially feasible. Five alternatives were analyzed by the Applicant's team. 16 Notice of Intent Commercial Redevelopment No Action Alternative. This is not a feasible alternative as it does not meet the project objective of developing the land in accordance with RMUD guidelines. This alternative would not result in any impacts to resource areas; however, it does not provide for limited removal of contaminants of concern during construction. The potential risk of contaminants of concern have been present since the 1920's and some are the result of impacts from upgradient sources. The No Action alternative will continue to allow untreated stormwater to enter the Williams Parcel from upgradient and perpetuate the problems. Untreated stormwater flowing through the Williams Parcel will continue flowing downstream to Sawins Pond and other water resources. Alternative 2. In 2016, the Applicant provided an Environmental Notification Form to the Massachusetts Environmental Policy Act Office which is part of the Environmental Office of Energy and the Environment. The proposed project included the removal of contaminated sediment from Sawins Pond that would be contained on the Williams parcel. In doing so it was proposed that Williams Brook and BVW on the Williams parcel would be permanently filled and replaced by realigning the stream and mitigating for BVW loss. The resource areas on the Williams parcel were to be filled with up to 8,000 cubic yards of sediment dredged from Sawins Pond, placed behind a barrier, and capped with 3 -feet of clean fill. This alternative involved significant impacts to the jurisdictional resource areas on the Williams Parcel and located additional contaminated materials on the Williams parcel. While that concept plan quantified impacts to the parcel in conjunction with the adjoining parcel (including Sawins Pond), the estimated impacts included ±1.39 acres of impervious surface area, ±5 acres of land alteration, ±22,275 sf of new BVW alteration, ±375 linear feet of new Bank alteration, and ±8,000 cubic yards of LUW alteration associated with the rubber waste removal from Sawins Pond. Alternative 2 was deemed not economically feasible and did not propose clean up at the Williams parcel. Additionally, this alternative results in greater adverse environmental effects on the Williams parcel and requires significant re -alignment of the stream and entire site with greater resource area impacts. Therefore, Alternative 2 was not selected as the preferred alternative. Alternative 3. This design concept developed in 2018 includes relocating BVW from the southern side of the site to the northern side of the site and the development of an ±8,585 square foot building and associated parking. The plan included relocating ±366 linear feet of existing stream, creating ±432 linear feet of new stream channel, and greater than 5,000 sf of potential wetlands lost due to development. Alternative 3 would result in greater adverse environmental effects on the Williams parcel and requires significant re -alignment of the stream and entire site with greater resource area impacts. Therefore, Alternative 3 was not selected as the preferred alternative. Alternative 4. This alternative proposes development of the parcel in accordance with the RMUD guidelines and applicable Watertown zoning regulations. Alternative 4 would result in ±4,900 sf of BVW impacts related to site cleanup in accordance with a RAM Plan and a wetland mitigation plan in accordance with the WPA Wetlands Ordinance, resulting in an increase to the amount of wetlands at the parcel. Alternative 4 would result in greater adverse environmental effects on the Williams parcel and was therefore not selected as the preferred alternative. Preferred Alternative. This alternative proposes to develop the parcel in accordance with the RMUD guidelines and applicable Watertown zoning regulations. It also includes resource area mitigation in accordance with the WPA and Wetlands Ordinance to BVW and RFA. The Preferred Alternative will result in a net increase in the square footage of wetlands on the parcel, will include removal of invasive species and urban refuse, plant native species, and improve the functions and services of the resource areas which will result in a net ecological benefit to the interests of the WPA and Wetland Ordinance. 17 Notice of Intent Commercial Redevelopment This will improve and diversity the resource areas. The proposed project will include cleanup at the site in accordance with a RAM Plan and the parcel will be improved from an ecological standpoint as well as improving the aesthetics of the local area. This alternative was selected as the Preferred Alternative as it will result in the least adverse environmental impacts on the Williams parcel and achieves the project objective of developing a commercial building. 7.6 Wildlife Habitat Evaluation As stated at 310 CMR 10.60(3), alterations of wildlife habitat characteristics beyond permissible thresholds may be restored onsite with the following general conditions to insure that the standards in 310 CMR 10.60(1)(a) is satisfied, including the surface of the replacement area to be created shall be equal to that of the area that will be lost (10.60(3)(a); the elevation of groundwater relative to the surface of the replacement area shall be approximately equal to the lost area (10.60(3)(b); the replacement area shall be located within the same general area as the lost area (10.60(3)(c); interspersion and diversity of vegetation, water, and other wildlife habitat characteristics of the replacement area shall be similar to the lost area (10.60(3)(d). SWCA completed a detailed Wildlife Habitat Evaluation, as outlined in the Massachusetts Wildlife Habitat Protection Guidance for Inland Wetlands (Wildlife Guidance) (MassDEP 2006), for proposed impacts to BVW on February 22, 2021 (see Appendix G). The purpose of the wildlife habitat evaluation was to document important wildlife habitat features in order to demonstrate the project will result in no adverse effect. The WPA regulations define adverse effects on wildlife habitat as the alteration of any habitat characteristics listed in 310 CMR 10.62(2) such as plant community, soil structure, and hydrologic regime. For example, insofar as such alteration will, following two growing seasons of project completion or the regeneration of replanted trees, substantially reduce its capacity to provide important wildlife habitat functions listed in 310 CMR 10.60(2), such as shelter, breeding areas, nesting sites, etc. Proposed impacts to BVW are below the `significance' threshold as outlined in Appendix A of the Wildlife Guidance (i.e., 5,000 sf); however, SWCA identified several important wildlife habitat characteristics to be incorporated into the wetland mitigation design. Important wildlife habitat features identified within the proposed BVW impact area include two standing dead trees approximately <12 inches in diameter (i.e., snags) which provide woodpecker foraging habitat and/or nesting cavity sites, cover habitat for small to medium sized mammals (e.g., coarse woody debris and dense vegetation), fruit and mast -producing vegetation, and nesting habitat for birds. The site additionally functions as part of an important wildlife corridor within a fragmented, urban landscape, connecting to Sawins Pond to the east. Dense vegetative cover is an important habitat function at the site for nesting birds, small mammals, and meso mammals. No adverse impacts are proposed to these habitat features as vegetation community will be improved as a result of the wetland mitigation, shrub enhancement, and the removal of trash and debris. Plant species included in the wetland restoration seed mix provide nectar sources for pollinators. Shrubs which provide important wildlife food sources, such as dogwoods (Cornus amomum, C. racemosa), black elderberry (Sambucus nigra), northern arrowwood (Viburnum dentatum), and were selected to increase wildlife habitat food and cover value. The addition of native shrub and tree species will increase the vegetative diversity. The removal of selective invasive species, such as Asian bittersweet will improve wildlife food value, as bittersweet fruit has been shown to have a deleterious effect on migrating neotropical songbirds since it is nutritionally inadequate (Smith et al. 2007). All areas of undisturbed RFA are presumed to be significant for wildlife habitat. However, different review requirements apply depending on whether the RFA is degraded (310 CMR 10.58(5)). SWCA 18 Notice of Intent Commercial Redevelopment completed a Detailed Wildlife Habitat Evaluation for proposed RFA impacts to incorporate any potential significant wildlife habitat features into the mitigation plan, the shrub enhancement plan, and the upland stabilization area. While important wildlife habitat features such as cover habitat exist within the RFA area, no adverse impacts are proposed to important wildlife habitat features within RFA as all features are proposed to be replicated in the wetland mitigation plan. Further, the habitat will be ecologically improved as higher quality food sources will be planted, vegetative diversity will be increased, selected invasive species and trash will be removed, and valuable wildlife food source will be increased. Further, the addition of 768 trees and shrubs will decrease thermal loading within the stream channel, mitigate stormwater inputs from offsite discharges associated with impervious surface areas (i.e., to the south of the restoration area), and provide additional cover habitat. No changes to the site functionality as an important wildlife corridor area are proposed but will be enhanced because of the mitigation. In accordance with 310 CMR 10.60(3), adverse impacts will be avoided through on -site restoration and mitigation. The site is not located within Habitat of Potential Regional or Statewide Importance or certified or documented vernal pool habitat. The site is not located within Habitat of Potential Regional or Statewide Importance or certified or potential vernal pool. 8 WATERTOWN WETLAND ORDINANCE The City of Watertown has enacted a Wetlands Ordinance, which regulates jurisdictional resource areas beyond the WPA including rivers/streams, wetlands, Bank, LUW, and any land within 200 feet of a river or perennial stream. The Wetlands Ordinance also has a 150 -foot buffer zone to BVW and Bank as well as a 50 foot no -build zone. This project proposes work within BVW, Bank, and within 200 -feet of a stream. The Applicant requests approval to complete the proposed work in the buffer zone and requests a waiver to the 50 -foot no work zone. The Applicant has provided an alternatives analysis which illustrates their interest in developing the project and that there is no reasonable approach that would allow the development in accordance with the Wetlands Ordinance. The Project provides an opportunity for the Applicant to develop a commercial building while also providing for partial cleanup of contaminants under a RAM Plan, restoring and enhancing RFA and BVW, and results in a net ecological improvement over existing conditions at the Williams parcel. The Applicant understands that there is not a clear approach that avoids impacts to jurisdictional resource areas. However, the selected approach avoids and minimizes impacts to jurisdictional resource areas to the maximum extent practicable while also mitigating for proposed impacts. The proposed mitigation will improve the ecological quality of the on -site resource areas by restoring and enhancing their functions and services, thereby protecting the interests of the WPA and Wetland Ordinance. The Applicant is providing a permit application in accordance with the Wetlands Ordinance, Section H(1)c: Table 7. Watertown Wetland Ordinance Compliance Wetland Ordinance, Regulation Compliance Section III -Procedures, (H)(c) Application for Permit and WPA Form 3. WPA Form 3 is provided with this submittal. 2 Provide a U.S.G.S at 8.5 X 11 This is provided as Figure 1 in Appendix A. 19 Notice of Intent Commercial Redevelopment 3 Name and address of property owner, applicant and abutters are provided. Found on WPA Form 3, and in Appendix C, respectively. 4 Description of alteration to flood storage capacity. Flood storage capacity is not being altered. There is no 100 -year floodplain present on the Williams parcel. 5 Maximum and minimum groundwater elevations. Not applicable. 6 Soil characteristics in representative portions of the site. To be determined as part of the RAM Plan sampling and Geotech survey. 7 Runoff calculations and stormwater calculations are provided. Presented in Appendix F. 8 Methods to be used to stabilize and maintain embankments. Civil design plans and mitigation plans in Appendix B illustrate these methods. 9 Siltation and erosion control plans to be implemented. Civil design plans and mitigation plans in Appendix B illustrate these methods. 10 Discussion on effect of the project on aesthetics, historic values, archeological and educational values, agriculture, and recreation where relevant. The aesthetics of the site will be improved as the site is currently degraded and has debris present. The project will be constructed in accordance with the RMUD. See Section 6. The other discussion items are not applicable. 11 12 Methods of avoiding the use of pesticides, herbicides, fertilizers, and de-icing chemicals. Not Applicable. Where required by the Commission, a fisheries and or wildlife habitat study of the area. A wildlife habitat evaluation was completed. See Section 7.6. 9 SUMMARY SWCA is submitting this NOI behalf of the Applicant for the construction of a two-story mixed -use building at Parcel 1236-2-0 located at 0 Arlington Street in Watertown, Massachusetts. The project meets the requirements of a redevelopment project under 310 CMR 10.58(5) for "abandoned dumping grounds," and is being proposed in accordance with the Watertown RMUD zoning regulations. The Williams parcel has been heavily degraded with fill and debris associated with former uses at the property in the 1900's. A part of this project work will be conducted in RFA with 22,059 sf in the 0-100 foot and 1,912 sf in the 100 -200 -foot RFA. Work will also include impacts to BVW (4,215 sf), with mitigation for these impacts being 6,390 sf along the southern side of the site. Buffer zone work will also be incurred with a total of 19,758 sf of work in this area, which will also be restored following site work. The project proposes to develop a commercial building, which will allow the Applicant an opportunity to implement cleanup of contaminants of concern when encountered during construction. As such, we respectively request the Commission issue an Order of Condition under the WPA and the Wetlands Ordinance in accordance with a request for a variance to the 50 -foot no build zone. 20 Notice of Intent Commercial Redevelopment 10 REFERENCES Engineering Alliance, Inc., Drainage Calculations and Stormwater Management Plan for the Mixed Use Building located at Arlington Street & Elm Street, Watertown, Massachusetts. March 12, 2021. FEMA. 1980. FEMA Flood Map Service Center. Available at https: //msc. fema. gov/portal/search?AddressQuery=new%201udlow%20rd%2C%20granby%2C% 20ma#searchresultsanchorCenter 1 Search By Address. Accessed on February 26, 2021. MassDEP. 2006. Massachusetts Wildlife Habitat Protection Guidance for Inland Wetlands, 2006. MassGIS. 2009. Areas of Critical Environmental Concern. Available at https://docs.digital.mass.gov/dataset/massgis-data-areas-critical-environmental-concern. Accessed February 4, 2021. MassGIS. 2010. Outstanding Resource Waters. Available at https://docs.digital.mass.gov/dataset/massgis- data-outstanding-resource-waters. Accessed February 4, 2021. MassGIS. 2017. NHESP Priority Habitats of Rare Species. Available at https://docs.digital.mass. gov/dataset/massgis-data-nhesp-priority-habitats-rare-speciess. Accessed February 18, 2021. MassGIS. 2021. NHESP Certified Vernal Pools. Available at https://docs.digital.mass.gov/dataset/massgis-data-nhesp-certified-vernal-pools. Accessed on February 4, 2021. Smith, S.B., K.H. McPherson, J.M. Backer, B.J. Pierce, D.W. Podlesak, and S.R. McWilliams. 2007. Fruit quality and consumption by songbirds during autumn migration. The Wilson Journal of Ornithology 119(3):419-428. Vineyard Engineering & Environmental Services, Inc. Phase II Comprehensive Site Assessment Scope of Work Modification (Part 2), January 8, 2008a. Vineyard Engineering & Environmental Services, Inc., Draft II CSA and Response Action Outcome Statement, September 25, 2008b. Watertown Zoning Ordinance. Amended December 11, 2018. Watertown Wetland Ordinance. Revised December 2012. 21 Notice of Intent Commercial Redevelopment This page intentionally left blank. 22 APPENDIX A Figures A-1 &Z)07i %Rtgz9w;4�/�/ a�lF r MW � , . _ . "�� 'a. _ •� � � CIARENOON'�REEj � Np MUNROEAVENUE t'11-- k vow ``' T• fir. r � _ YUKON AVENUE �_�: �`. m 2 tnimi p oI -� • �. U+ I• �.A 'f. �r 1 N 1! � M ARLINGTON STREET WATERTOWN, MA Figure 2. Aerial Map SWC 1 ENVIRONMENTAL CONSULTANTS w�I t;� � 7 Watertown, MA USGS7.6 Parcel Boundary NewtonMA 71.1552°W 42.364°N NLL- 1:2,000 Base Map: ESRI ArcGIS Online, accessed February 2021 0 100 200 Updated: 2/1712021 IFeet Project No. 59467 Meters 0 25 50 r ��.Y IV � � t1 ARLINGTON STREET WATERTOWN, MA Figure 3. 100-Year Floodplain SW CA ENVIRONMENTAL CONSULTANTS 100-Year Floodplain Parcel Boundary Watertown, MA USGS 7.5' Quadrangle: Newton, MA 71.1552°W 42.364-N Base Map: ESRI AmGIS Online, accessed February 2021 Updated: 2/1712021 Project No. 59467 N A 21',6 1:10,000 0 400 800 Feet mEEEEEK==== Meters 0 100 200 ARLINGTON STREET WATERTOWN, MA Figure 4. NHESP SWC 1 ENVIRONMENTAL CONSULTANTS O Potential Vernal Pool Priority Habitats of Rare Species Parcel Boundary Watertown, MA USGS 7.5' Quadrangle: Newton, MA 71.1552°W 42.364°N Base Map: ESRI ArcGIS Online, accessed February 2021 Updated: 2/1712021 Project No. 59467 N 1:30,000 1,000 2,000 300 600 APPENDIX B Proposed Mixed Use Building Plan Set and Mitigation Plans A-2 W - r LOCUS MAP SCALE: 1:25,000 OWNER APPLICANT: Maximos Hatziiliades 71 ARLINGTON STREET WATERTOWN, MA 02472 CIVIL ENGINEER: ENGINEERING ALLIANCE, INC. 194 CENTRAL STREET SAUGUS, MA 01906 (781) 231-1349 SURVEYOR: OTTE & DWYER, INC LAND SURVEYORS 59 APPLETON STREET SAUGUS, MA 01906 (781) 233-8155 PROPOSED MIXED USE BUILDING Arlington Street & Elm Street 1V (Parcel ID: 1236 2 0) � Watertown. Massachusetts "3;p-100. 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Civil Engineering & Land Planning Consultants 194 Central Street 1950 Lafayette Road Saugus, MA 01906 Portsmouth, NH 03801 Tel: (781) 231-1349 Tel: (603) 610-7100 Fax: (781) 417-0020 Fax: (603) 6107101 KEY MAP GRAPHIC SCALE 9 .10 20 40 ( IN FEET ) 1 inch =1' - 2V ft. 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PARCEL ID 1236 2 0 DATUM REFERENCE: NAVD 1988 (1' CONTOURS) CONTOUR LINES GENERATED FROM MASS GIS LiDAR TERRAIN DATA DATED 2013-2014. ELEVATIONS HAVE BEEN FIELD CHECKED WITH GPS. WETLAND FLAGGING BY SWCA APPROVED IN GRAD ISSUED UNDER DEP FILE NO. 321-0168 ON JULY 17, 2019. ACCORDING TO THE F.E.M.A. MAP FOR MIDDLESEX COUNTY, MAP No. 25017C0557E, DATED JUNE 4, 2010, THE PARCEL(S) FALLS IN AN AREA CLASSIFIED AS ZONE 'Y' (OUTSIDE OF 0.2% CHANCE). GENERAL UTILITY NOTE ALL UTILITIES SHOWN ARE BY FIELD LOCATION AND/OR COMPILED ACCORDING TO AVAILABLE RECORD PLANS AND ARE APPROXIMATE ONLY. OTTE & DWYER, INC. AND ITS SURVEYOR ASSUME NO RESPONSIBILITY FOR DAMAGES INCURRED AS A RESULT OF UTILITIES. CALL 1-800-DIGSAFE z 0 LA W w U- 0 z 0 V (N W 0 +� m000 w M C p O �t l _ W 0 cvZ^M V 4 MO Cl co 0 Crn Sri 2 , ~ Qa a c J Ca tDrno •L NmMN 0 VJ AND Lu = � � — CD . 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POROUS 'du ,� ,� o_ DRIVEWAY &PARKING AREAC01= C 1707 � _"IL � � _"IL � C�20�. C3L ML ML ML ML ML ML ML ML ALL Illc l �1'�&1-'L "'L _uv 'L'L'L'L'L'L'L'L'L'LCEO CS C EXTEND EXIST. CONC. TO BUILDING C9 A AV AV � � � � � � � � � � ALL � ALL ALL ALL SIDEWALK C,� ML ML ML ML ML ML ML ML ML ,� ,� ,� B 6 ENTRANCE C10 1714 uu uu All All All All ML ML ML ML ML ML ML ML ML ML ML ML ML ML ML ML ML - z IVA VA WE WE Wwwww"m N 7 � GU �9RT 36' 61N J � R,22 Q- S 17 \ ., r e owe rem BENCHMARK: MAG-NAIL \85 AIL AIL AIL 3& 3& AIL 3& 3& AIL 3& AIL AIL AlL D4 v 1 IN CONC. 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LA LAND USAGE TABLE Regional Mixed Use (RMUD) ITEM REQUIRED PROVIDED VARIANCE/WAIVER REQUIRED MINIMUM LOT SIZE 10,000 SF 61,721 t SF NO MINIMUM LOT FRONTAGE 50 FT 156 FT NO MINIMUM FRONT YARD SETBACK 10 FT 10.5 FT NO MINIMUM SIDE YARD SETBACK 15 FT 26 FT NO MINIMUM REAR YARD SETBACK 20 FT - NO MAXIMUM BUILDING COVERAGE 75 % 11.6% NO MAXIMUM IMPERVIOUS COVERAGE 85 % 29.6 NO MAXIMUM HEIGHT (FT/STORIES) 55 FT / 5 35 FT / 2 NO MINIMUM LOT AREA PER DWELLING UNIT N/A - NO MAXIMUM FAR 1.0 0.2 NO MINIMUM OPEN SPACE 20 % - NO NOTES: SIDE YARDS BETWEEN BUILDINGS WITHOUT DWELLING UNITS MAY BE OMITTED BY SPECIAL PERMIT PROVIDED THAT THE SIDE YARD DOES NOT ADJOURN RESIDENCE DISTRICT, AND THAT THE ACCESS OF EMERGENCY EQUIPMENT TO THE REAR PARKING IS NOT RENDERED INACCESSIBLE. FOR ALL NEW CONSTRUCTION IN THE RUMD DISTRICT, THE MAXIMUM LENGTH OF A CONTIGUOUS BUILDING FACADE SHALL BE NO MORE THAT 1501T LONG OR UP TO 250FT LONG BY SPECIAL PERMIT IN KEEPING WITH ADOPTED DESIGN GUIDELINES. LEGEND —SITE LAYOUT PLAN PROPERTY LINE PROPOSED STRIPING PROPOSED BUILDING PARKING COUNT 1 1 PROPOSED RETAINING WALL PROPOSED CURBING PROPOSED POROUS ASPHALT PROPOSED CONCRETE SIDEWALK PROPOSED LANDSCAPED AREA PROPOSED DIRECTIONAL ARROW PROPOSED SIGN �— COMPONENT REQUIRED PROPOSED RETAIL 10 SPACES 1.0 space per 350 gsf 3,500/350 = 10 spaces 19 SPACES (STANDARD 9 SPACES SPACES) WAREHOUSE 1.0 space per 1,200 gsf 10,800/1,200 = 9 spaces TOTAL 19 SPACES 19 SPACES SIGN TABLE REGULATORY MOUNTING DESCRIPTION SIGN SIZE HEIGHT DESCRIPTION REFLECTORIZED (GROUND TO R1-1 24" x 24" 7' - 0" WHITE ON YES RED 115-1 " 24" x 24" 7'- 0" WHITE ON YES - RED 116-1 12" x 36" 7'- 0" WHITE ON YES ONE WAY BLACK ALL SIGNS AND PAVEMENT MARKINGS TO BE INSTALLED SHALL CONFORM TO THE APPLICABLE SPECIFICATIONS OF THE CURRENT EDITION OF THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) W I Q Cu mj=mr%' - �O^SO of=�tp N o �Z^M V Mo O co 0 cp 0) 0) P~ Ll Qa a CrI -o c J df w rn O �vC5A Lu 7apo^o �= �.. � 0) m m a rn ^' LA p N N Q ^W W N T }+ fo N ui tL_J E Q V Z m �LLJN V J w Oz M Ln ~ W N a� O+-�"^L'' CL C: o � O V C .L � Q p G � Z a a LAp •-• c c W Q tA .c a� a w ILA C =_ N r- �--� N �N fu =c 0 Lii c c ~ O z E °J ^� �X o N Ira 2t z o N z U a a Q o iM YU K ON A " ENUE ool d 2 F� PREP ' W o O D V A -C O m O Z 2 R � -, r- N Z Na400t '- c� O_ O r i= 0 0 r Z O N Z D m n Z -I 0)-0V A j z z 100' BUFFER ZONE TO BVW000100 `mcom� mZ z z ,Cn NEWYD STREET BT INGTON C FT 76 ARI_ 1231 7 260 LIMIT OF 100- O� �' P� BOOK 128°Parcel 6 RIVE ONT AREA ZONE TO Or BVW � PROP. OUTLET CONTROL Pa ' 100' BUFFER PROP. SUBSURFACE STRUCTURE (OCS-1) , RIM=19.75 INFILTRATION FACILITY WEIR ELEV.=17.45 S OF 10 CULTEC 00 I/ PROP. 2" TYPE---, "K" COPPER DOMESTIC WATER SERVICE PROP. 4" CLDI - FIRE SERVICE PROP. 6" PVC (SDR-35) SEWERS SERVIFT/FT MIN.) GOO R 19.19 D 18. 93' (2 ROW INV. IN=15. 330XLHD CHAMBERS) INV. OUT=12.50 MODULAR BLOCK .2C& ,p° Q, o TOP OF STONE=18.00 PROP.WALL W/ 153'74 TOP OF CHAMBER=17.50 RETAINING FENCING 3,05,20"E i BOT. OF CHAMBER=15.00 7 / Zp GUARDRAIL & N ' 4 701 < BOT. OF STONE=14.50 PROP. DMH I T.O.W.=20.50 EXIST GRADE OO,FT RIM=19.65 B.O W _MA l� N 1 INV.IN(4)=12.0� / 50, ZONE o - - F N BUILD 1704 / 0 \ `� LIMI� REP i 0 Tp PROP. INSPECTION �RFRONT A 2� 13° DX F\\TER 2 GU VER PROP. 6wP " PORT (TYP.) RI 1702 CONNECTOR 170.00 PROP pNT DRp\Ni�° _ - - - - - _ PIPE (TYP.) ZON I sows N 5 56"E 20 9 ppLP PT �uT�VN°ER / 1 BUILD 50 N0 16J��j18� __--_16i- - __11 _17 -15- 2 / �� i�� I \ �- --2 20,16' 15- 20 i - -1�06 "15� ' \ \--'� 18 ��No j��14 _ -�� 2,-�'/'121 I N 17<� ` BHP) --- -17 13 �! lei` o 16 1�Ic�� - -14 - \\ 19 -_ - - _ _ - 198 - _ = 16 - _15 � � ' - � � ,,I,� / / C�6717- 15�I �� / 17 16�"15:�-- ydd / / z / 1 / D - _ - - - _ -_ / 19.00 (LP 19.00 (LP)� $° 1 45 I 6 -- PROP. TREES FlLTER� i - -12' \ J/ C 0 11 I I ^a' TREEBOX FILTER m - -13 - _ �TLOWP�IMT-12 - PROP IN�MERD lN)--t'3 00 O 91ypW �p A0 � ,u �\ N AT L(�WPOINT 13.00 IN V.BUT(UNDERDRAIN)= 9.31 C10 (15 C � � PAV ��,�P\\w�le'L1 E B 6 6 GU �g 6L rr' 1 \ I / / _ PROP . 8' ADS 1714 •P� '�•"• GNv rn V• 22.3 < I \^ I / ROOF DRAIN / J 10�AV AV AV AV AV AV AV � � � � o �C X\ � S R' 19.50 II I i / Awl toLn PROP. RIPPUiT'L` W W S -P - 0 ' E Q - m `� 2'0 CULVERT\ INV.=I10.11 R=20.63 'T D v '1 ■ 1 REMOVE PORTION RC °LVERT BEYOND MANHOLE (VERIFY PIPE SIZE) PROP. CONTECH DS UNIT (CDS5640 -°-C OR ,\ooPoVF EQUAL) ROP. WETLA 2`--10 50 �1I �I�y/ ILL'S`4 �93 .F IN O (,e�i� � � der'ing Vegeta e e and�(B�iY✓) Av Av,.1al�-� \ ^ / � - .R15 q! 17 0 ° 70 0 / AL AL ALALALAL�Lt �Lt �Lt AL AL AL AL ALALAL AL � �llltl �Illt �Lt �Lt �-III�III� �tll� ��It0 1�� It �dll�� 111� �III� �III� �III� �III� \�III� /� N`•Jj`/ �v IV^ f m -fl B `Ls� v/v/b T7 v v 7(u8� r n r�C70 ddv/vvvvvvv m 7 /18 B14 P!7 I � � �4 7Ab � �� Al AU v �7 v v v vi v S F J 1 v v�v �4) rn r CN Bank / B3 / O'vvvvu-40N2y v�v11L _uL %IL I I I cVG` \-)3 (� - 1 �vv '��6;I��vvvv)y I �� , 7v�vA_v V v`vv17v / ^o,ry� // �vvVIA /v'`vV,vC)'vvvCi �i I/ I /I 1 tf / � � � �� jordwrin�L e,,getated Wetla - - - v 4 -/ Owe 44.re� � � i -zL\ / / 'mAV/JV ldhlAV AV AV AV AV '�'\ AV 4L _ _ - _ _ � i BENCHMARK: MAG-NAIL �dL �JL �dL { / �dL B � � � � vl¢ 1 IN CONC. WALK D1 - - - - - �j EL=24.09'NAVD88 A�3 AV �Ly 2 \ e v v v v v D \ v �7�4 p 1 / / / ' / \ \ ' / / Y /R0 AD STREET I Y�318 / c04000 � ,,� `,,� fd�kTA1{�6JN6dlly vdv o v v v v v v v-v o - `/ R oN 3F 0 WA I1N 5 v/vv177MvvOvvvvvvvvv�7 '� / SURLINGT 36 519 7I P> p v /'�'` /v/v v v v v v v v v v v v V-�d „W 3��' 36 P PR ID 1g PAGE WaY (�1 v oN d v,�7 d /v v v v v v �A�SFv 6 v S69°2833 / MONO / BooK de Kf v��vv��vvvvv�p�. vv %� vgvvvv N vvvv � Wid el vsb�Qvv�zvvvv oR��SF1717000000 / vOvv o ev F�V�v ��`'�v ' 2° Pora , v v v v v v \125� 0�1v v Jf7 v �vtoo 6I5�` \ 0 v v v SF'� V�v v / v% v v/v C v v / �iv ' \/JoW1717 v_avvdvvv I v 7/7 V7, 5 / /v v v v Vi'7 /vim/d 77 v / /v v v o1 " 0000 0 �JERT TEE Cl(, TRUST L/M/T ►� LEE LU M STRE G OF 100-FT ' � m 23.8 R=23.8�[ r 0 I \- CON EC6 NEW CULVERT24" PIPE TO (MATCH EXIST. EXIST. INVERT) LEGEND - GRADING,DRAINAGE, & UTILITY PROPERTY LINE PROPOSED BUILDING PROPOSED DRAIN LINE PROPOSED SEWER LINE s PROPOSED WATER LINE W PROPOSED CONTOUR 22 PROPOSED SPOT SHOT 20.45X GENERAL UTILITY NOTES: 1. THE CONTRACTOR IS SPECIFICALLY CAUTIONED THAT THE LOCATION AND/OR ELEVATION OF EXISTING UTILITIES AND STRUCTURES AS SHOWN ON THESE PLANS IS BASED ON RECORDS OF VARIOUS UTILITY COMPANIES AND WHERE POSSIBLE, MEASUREMENTS TAKEN IN THE FIELD. THIS INFORMATION IS NOT TO BE RELIED UPON AS BEING EXACT OR COMPLETE. THE LOCATION OF ALL UNDERGROUND UTILITIES AND STRUCTURES SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR PRIOR TO THE START OF CONSTRUCTION. THE CONTRACTOR MUST CONTACT THE APPROPRIATE UTILITY COMPANY, ANY GOVERNING PERMITTING AUTHORITY, AND "DIGSAFE" AT LEAST 72 HOURS PRIOR TO ANY EXCAVATION WORK TO REQUEST EXACT FIELD LOCATION OF UTILITIES AND THE ENGINEER SHALL BE NOTIFIED IN WRITING OF ANY UTILITIES INTERFERING WITH THE PROPOSED CONSTRUCTION AND APPROPRIATE REMEDIAL ACTION TAKEN BEFORE PROCEEDING WITH THE WORK. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO RELOCATE ALL EXISTING UTILITIES WHICH CONFLICT WITH THE PROPOSED IMPROVEMENTS SHOWN ON THE PLAN. 2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING AND MAINTAINING ALL CONTROL POINTS AND BENCHMARKS NECESSARY FOR THE WORK. 3. THE CONTRACTOR SHALL EXCAVATE TEST PITS PRIOR TO COMMENCING WORK TO TO DETERMINE THE EXACT LOCATION OF WATER AND GAS SERVICES. 4. ALL PROPOSED WORK SHALL BE PERFORMED IN FULL COMPLIANCE WITH THE TOWN OF WATERTOWN, AND IS SUBJECT TO QUALITY CONTROL TESTING AT THE DISCRETION OF THE ENGINEERING DEPT. AT THE EXPENSE OF THE CONTRACTOR. THE CONTRACTOR SHALL NOTIFY THE TOWN OF WATERTOWN D.P.W. PRIOR TO THE COMMENCEMENT OF ANY UTILITY WORK. 5. ALL UTILITY WORK WITHIN ANY RIGHT-OF-WAY SHALL BE PERFORMED BY A CONTRACTOR LICENSED BY THE DPW & OBTAIN A PERMIT FOR SUCH WORK FROM THE DPW. 6. ANY CHANGE IN THE FIELD CONDITIONS SHOULD BE REPORTED TO THE ENGINEER TO ENSURE THAT ANY MODIFICATIONS TO THE ORIGINAL DESIGN CONFORM TO STANDARD ENGINEERING AND CONSTRUCTION PRACTICES AND ADEQUATE TO SERVE THE PROJECT'S NEEDS AND COMPLY WITH APPLICABLE STANDARDS AND REGULATIONS. 7. CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ALL UTILITIES AS SHOWN ON THESE PLANS IN ACCORDANCE WITH THE APPROPRIATE UTILITY COMPANY SPECIFICATIONS. ALL UTILITY CONSTRUCTION SHALL CONFORM TO THE APPROPRIATE UTILITY COMPANY STANDARDS FOR CONSTRUCTION. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING SPECIFICATIONS OF MATERIALS AND INSTALLATION PROCEDURES AND INSTALL IN ACCORDANCE WITH THESE REGULATIONS. 8. THE CONTRACTOR IS RESPONSIBLE TO CONTACT AND DETERMINE, COORDINATE AND SCHEDULE ALL NECESSARY INSPECTIONS AND MONITORING WITH ALL APPROPRIATE UTILITY COMPANIES. 9. THE CONTRACTOR OR OWNER IS RESPONSIBLE FOR OBTAINING AND PAYING FOR ANY PERMITS AND/OR CONNECTION FEES REQUIRED TO PERFORM THE WORK. 10. DISPOSAL OF ALL MATERIALS IS THE RESPONSIBILITY OF THE CONTRACTOR AND MUST BE OFF -SITE IN ACCORDANCE WITH ALL FEDERAL, STATE, AND LOCAL MUNICIPAL REQUIREMENTS. 11. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SITE RESTORATION AND CLEAN UP UPON COMPLETION OF THE PROJECT & SHALL SUBMIT AN AUTOCAD "AS -BUILT" TO THE ENGINEERING DEPT. UPON COMPLETION OF THE BUILDING & UTILITY WORK. DRAINAGE NOTES: 1. ALL STORM DRAINAGE PIPES SHALL BE 12" HIGH DENSITY POLYETHYLENE PIPE (H.D.P.E) CORRUGATED OUTSIDE & SMOOTH INSIDE UNLESS NOTED OTHERWISE. 2. A MINIMUM OF 18" VERTICAL CLEARANCE SHALL BE MAINTAINED WHERE WATER SERVICES CROSS STORM DRAIN LINES. WATER SERVICES SHALL BE ENCASED IN CONCRETE REGARDLESS OF CLEARANCE WHEN PASSING BELOW STORM DRAIN LINES. ENCASEMENT SHALL EXTEND ALONG WATER SERVICE A MINIMUM DISTANCE OF 10' FROM THE CROSSING POINT OF THE OTHER PIPE AS MEASURED NORMALLY FROM ALL POINTS ALONG THE PIPE. 3. REFER TO ARCHITECTURAL DRAWINGS FOR ALL SERVICE CONNECTIONS (I.E., ROOF DRAINS, WATER AND SEWER SERVICES, ETC.) WITHIN 10-FT OF THE BUILDING WALLS. z 0 LA W w U- 0 z 0 V N W 0 a rn v � W (n N Q �1 -�1 W 04 N -2 W V ELu W N tJ fo J o lie Cz m Ln W L C-4 fO V to V N O o s � � co O L 00 L N "O O V fo 0 G QLli G z 0% O J Q N a LA0 mh_ v) R/VERFRONT AREA I2°NE TO Bfo BUFFER _ 1 �N fo F tiGp/ PAP GRAPHIC SCALE \��° o�� •X 10 0lp ��fo ( IN FEET) z z 1 inch =1' - 20' ft. J d d Q fu N Q ♦� �o CL LLIrn3 � C Q Lr) z 0� 0 z M U 0 0 I r_ COMPACTED GRANULAR FILL 2"x2"x8'-O" SQUARE `STEEL SIGN POST 2'MIN. LANDSCAPED 5'MAX. SURFACE TOP OF CURB °° a ROADWAY 6" TYPICAL a TYPICAL SIGN DETAIL NOT TO SCALE COMMON FILL/ ORDINARY BORROW \ o 0 0 o °o ° od °/\\j��\ DEPTH AND SURFACE o o \\Z, TREATMENT VARIES ocb / o o ° o \j DEPTH VARIES o s ° o ° o \\ j° 0o �° , WARNING TAPE o 0 cg \i (WATER ONLY) / oo 00 ° ° oV O° � ° ° o \\\ COMPACTED o j° o ° ° 0 ° \/ \\j BACKFILL \j< HAND TAMPED HAUNCHING o O °° °° 00o j 0 \ �\ \ COMPACTED BEDDING 0 0 0 o o 0�o 14 /ice//\/ ./i..// 18" (TYP) COMPACTED SUBGRADE UTILITY TRENCH NOT TO SCALE FINISHED GRADE 6"x6" 5' MIN. CAP WYE a TO BUILDING 0 Of a° 6" PVC 0 3:00 ° , Y4" PER FOOT (MIN.) w uj Zv)Q wLd zw= ~ � ` ° 00 1500 PSI w CONCRETE w g o w ° .. � z :2 a 1' 1' 6" PVC U w N Y4" PER FOOT (MIN.) N I - N "x6" TEE °a � ° OR WYE TO BUILDING - 1500 PSI ° as ° CONCRETE ° 6" PVC 45' BEND M��EFt 1' 14 4, FOR CONNECTION TO EXISTING 6.r SEWER USE WYE OR TEE MIN. 3/4" CRUSHED STONE / SADDLES WITH STAINLESS STEEL I-- BAND AND NEOPRENE GASKET SANITARY SEWER SERVICE AT MAIN NOT TO SCALE SEWER PERT PROPOSED PVC SEWER PLANS ® 1 /8" PER FOOT MIN. SEE NOTE 1 6" PVC-\ CLEANOUT ui RISER STACK 12 0 U z 0 6" PVC 45' BEND-\ FLOW 6"x6"x6"WYE SDR-35 PVC 3/4" CRUSHED CURB VARIES 6" REVEAL 1.5% (MAX.) FINISH 1.0% (MIN.) PAVEMENT x x 0 �4 coO 0 ^ pi- o4 b0 CJ�O 006 8" COMPACTED GRAVEL) NOTES: 1. PROVIDE EXPANSION JOINTS AT MIN. 30 FT. O.C. WITH PRE - MOULDED JOINT FILLER. 2. PROVIDE CONTROL JOINTS AT 6' O.C. 3. PROVIDE BROOM FINISH IN DIRECTION PERPENDICULAR TO CURB. 4. CEMENT CONCRETE SHALL BE 4000 PSI -TYPE II 4" CEMENT CONCRETE (6" THICK IN VEHICULAR AREAS) W.W. MESH FINISH GRADE COMPACTED SUBGRADE SECTION CONCRETE 1/2'T SIDEWALK 1/2 PREFORMED EXPANSION JOINT BLDG. FACE OR FIXED OBJECT JOINT DETAIL CONCRETE SIDEWALK NOT TO SCALE EXPANSION JOINT SEALANT (WHEN REQ'D) 10'-0" (MIN.) FINISHED GROUND SURFACE PROPOSED GRADE • 41 o I ADJUSTABLE Of VALVE BOX DETECTABLE cy TRACER TAPE O° Q• Z cn a GATE VALVE PVC ADAPTER WITH FLEXIBLE JOINT FERNCO ,::)° w OR APPROVED EQUAL. U- 0 ALL METAL FASTENERS • U DISTRIBUTION VALVE TO BE STAINLESS STEEL. o ` J m I • �. ` CONCRETE AGAINST UNDISTURBED MATERIAL \/� �� /� �� /� r 3/4" CRUSHED 6" STONE 'IPE PER M^ASS.^BLDG. NOTES: 1. LeBARON CAST IRON SEWER CLEANOUT RING COVER. COVER TO BE CAST WITH THE WORD "CLEANOUT" AND HAVE FLAT DIAMOND SURFACE. SANITARY SEWER SERVICE AT BUILDING NOT TO SCALE 12" P.E. ADS PIPE FROM INFILTRATION OUTLET 24" DIA. CONTROL ACCESS STRUCTURE _ TOP OF WEIR 48" DIA. (MIN.) ELEV.=17.45 v ALTERNATE TOP SLAB 12" P.E. ADS PIPE (TO DMH) 5. 0' 4.0 BAFFLE DETAIL NOT TO SCALE 15.00 1 1 12.50 ° °° P INVERT IN (FROM SYSTEM) INVERT IN (TO DMH) ° ° im SUBSURFACE FACILITY OUTLET STRUCTURE DETAIL NOT TO SCALE FINISH GRADE 8" 24" DIA. 8" ACCESS WATER GATE DETAIL NOT TO SCALE NOTES: 1. ALL SECTIONS SHALL BE DESIGNED FOR HS-20 LOADING. 2. COPOLYMER MANHOLE STEPS SHALL BE INSTALLED AT 12" O.C. FOR THE FULL DEPTH OF THE STRUCTURE. 3. PROVIDE "V" KNOCKOUTS FOR PIPES WITH 2" MAX. CLEARANCE TO OUTSIDE OF PIPE. MORTAR ALL PIPE CONNECTIONS. 4. JOINT SEALANT BETWEEN PRECAST SECTIONS SHALL BE PREFORMED BUTYL RUBBER. 5. DRAIN MANHOLE FRAME AND COVER SHALL BE SET IN FULL MORTAR BED. ADJUST TO GRADE WITH CLAY BRICK AND MORTAR (2 BRICK COURSES TYPICALLY, 5 BRICK COURSES MAXIMUM) 12" VERTICAL GRANITE CURB TREATMENT VARIES PROPOSED BIT. CONC. PAVEMENT TACK COAT SLOPE VARIES INSTALL CEMENT CONCRETE (3,000 PSI TYPE 1) IF CURB IS CO PLACED AFTER BINDER COURSE ° 00 \ o000 4 \\ °0°°0 0� -°0 0 0 -O o ° v0° O cote o °°°D ° ° °o p° o 0 ao �T ° -V �OO O° O00 ° O ° ° ° ° ° 0 00 O o 0 0 O°° O 0°� °O O o °O ` noo00 00 °°Q °° 0 O ° O ° O o0 8 °\//\//\/ ° 8 00 0 ° 8 ^ //,../� MECHANICAL JOINT TAPPING SLEEVE PLACE MASONRY BLOCK FRAME UNDER ACCESS PIPE ON COMPACTED FILL. DO NOT REST ON VALVE MECHANICAL JOINT TAPPING SLEEVE COMPACTED SUBGRADE 6" 6" 6" COMPACTED (MIN.) GRAVEL BASE VERTICAL GRANITE CURB NOT TO SCALE TOP COURSE: POROUS BITUMINOUS ASPHALT CEMENT CHOKER COURSE: 3/8" -3/4" 3 1 /2" UNIFORMLY GRADED STONES 1" o o O g6 ° (y eo�) ° ° 0 O BASE COURSE: ° O 1 - 2 " rJ 00 p 0 006 p� O O O O UNIFORMLY GRADED WASHED AGGREGATE, n� p ICJ ° LIGHTLY //�� p �UIJp O�� - qO O p COMPACTED O " goo ° g Orp FILTER FABRIC IIIIIIIIIIIIIIIIII-IIII - 11 =III=III=III=III=III ''-1 UNCOMPACTED SUBGRADE I I� I IIII1 I I1 1 I I_ NOTES: 1. BASE COURSE COMPACTION IS TO FOLLOW SPECIFICATIONS OF CULTEC STANDARD DETAIL ABOVE SUBSURFACE INFILTRATION SYSTEM. BASE COURSE COMPACTION TO ALSO FOLLOW STANDARD UTILITY TRENCH DETAIL IN UTILITY TRENCHES. ALL OTHER AREAS OF POROUS ASPHALT ARE TO ADHERE TO THIS DETAIL UNLESS SPECIFICALLY NOTED ELSEWHERE. PROPOSED WATER MAIN MODULAR CHANICAL JOINT / "" CONCRETE FACING PUSH -ON JOINT TAPPING UNITS VALVE VALVE BOX OR VALVE INDICATOR POST AS REQUIRED MECHANICAL JOINT / PUSH -ON JOINT TAPPING VALVE PROPOSED WATER MAIN EXIST. WATER -/ 4==4- MAIN SOCKET CLAMPS AND TIE RODS TAPPING SLEEVE AND VALVE NOT TO SCALE CULTEC NO. 20L POLYETHYLENE LINER TO BE PLACED BENEATH HVLV FC-24 FEED CONNECTORS 4" [100 mm] SCHED 40 PVC WHEN UTILIZING INTERNAL MANIFOLD 4" [100 mm] SCHED 40 PVC COUPLING RECHARGER 330 XL HD HEAVY DUTY CHAMBER 8„ 4" [100 mm] SCHED 40 PVC [203 mm] NYLOPLAST 12" [300 mm] INLINE DRAIN z °• BODY W/ 12" [300 mm] SOLID HINGED 0 o z m COVER AND FRAME (SEE NYLOPLAST z N LJ U) < DWG# 7003-110-044 FOR PAVED v w Q 0- ° STEPS, SEE APPLICATIONS / SEE DWG# 7003-110-045 z w o o NOTE 2. SEE NOTE 4. FOR UNPAVED APPLICATIONS) � SHELF TO BE CONCRETE N o FORMED AT A SLOPE OF z o 48" DIA. (MIN.) 1" PER FOOT. ) GRANULAR WELL -GRADED w a a SOIL / AGGREGATE MIXTURES N OUTLET DIA.4. ° VARIES z -0 ~ DIA. DC-780 CHAMBER VARIES (TYP.) ,... • �. .a .. �< ° , ooC� 0 o OO g0O Ooo °m o °°Og00�00°cOoq OoO °O°O O O&O0O00 0.dD °'0.o 0m o o00 CEMENT CONCRETE INVERT 12" COMPACTED GRAVEL COMPACTED SUBGRADE TYPICAL DRAIN MANHOLE NOT TO SCALE NOMINAL 3/4 - 2 INCH [19 mm - 51 mm] CLEAN CRUSHED ANGULAR STONE ADS 601 NON -WOVEN GEOTEX, ILL EQUAL) NOTES: 1. INSPECTION PORT MUST BE CONNECTED THROUGH KNOCK -OUT LOCATED AT CENTER OF CHAMBER. 2. ALL SCHEDULE 40 FITTINGS TO BE SOLVENT CEMENTED. INSPECTION PORT DETAIL CORE 4.5" [114 mm] O HOLE IN CHAMBER (4.5" HOLE SAW REQ'D) NOT TO SCALE [100 mm] SCHED 40 CREW -IN CAP CONCRETE COLLAR PAVEMENT 16.0" [406 mm] MIN. 12 [3658 mm] MAX. POROUS ASPHALT DETAIL NOT TO SCALE PROVIDE FENCE WHERE WALL HEIGHT EXCEEDS 4 FEET VARIES 1 IMPERVIOUS FILL MIN. 12" THICK APPROXIMATE EXCAVATION LIMIT GEOSYNTHETIC REINFORCEMENT FREE DRAINING MATERIAL 12.0" [305 mm] TYP. I ; -I 12.0" I- 52.0" [1321 mm] GENERAL NOTES ALL RECHARGER 330XL HD HEAVY DUTY UNITS ARE MARKED RECHARGER 330XL HD BY CULTEC, INC. OF BROOKFIELD, CT. WITH A COLOR STRIPE FORMED INTO THE PART ALONG THE STORAGE PROVIDED = 11.32 CF/FT PER DESIGN UNIT. LENGTH OF THE CHAMBER. REFER TO CULTEC, INC.'S CURRENT RECOMMENDED ALL RECHARGER 330XL HD CHAMBERS MUST BE INSTALLED IN INSTALLATION GUIDELINES. ACCORDANCE WITH ALL APPLICABLE LOCAL, STATE AND USE RECHARGER 330XL HD HEAVY DUTY FOR TRAFFIC AND/OR FEDERAL REGULATIONS. H-25 APPLICATIONS. TYPICAL CROSS SECTION 16.0" [406 mm] MIN. 12' [3658 mm] MAX. 1 - 2 INCH DIA. WASHED, CRUSHED STONE CULTEC RECHARGER 330XL HD HEAVY DUTY CHAMBER PAVEMENT 95% COMPACTED FILL �.o.o.o.o.o.o.o.o.o.or��oam■o■o■o■o■o■o■o■o■o■o.or��c PIPE PER ENGINEER DESIGN (MAX. INLET = 24 INCHES) SIDE PORTAL TO BE CUT IN FIELD CULTEC NO. 20L POLYETHYLENE LINER TO SPAN THE ENTIRE WIDTH TO ALLOW HVLV FC 24 FEED OF THE SYSTEM BELOW THE HVLV FC-24 FEED CONNECTOR AS NEEDED CONNECTORS AND SIDE PORTALS MAINFOLD DETAIL SUB -SURFACE DRAINAGE FACILITY DETAIL CULTEC 330XL HD NOT TO SCALE 12.0" [305 mm] (TYP.) z 0 Ln W w 0 z 0 tz Ln Lu +•' m00 00 w M � l- 0) 0 p 5 2 O vZ^M c V 2 = Mo O CtD po C M vtE _ a Qa I � C J 06 tD a1 0 -L N Na)M0 M C coo 2 _ Lu 00 wV �� a w W VCLIAO a w a rn v � G N W (n N Q . 04 "0 ��/ �1 W NLA W V & L Z m W N 170 V J o hie 06 M to w L C-4 f 0 V to � N O o c m s t� N O }� O " L +_+ 0 c ro p O V Q G z Lu o 0 J Q N � w (N•j Lu W fo a) • N N }r I* TN +_I +, O fu N O� _ 3 � V) O Q 0 0 .� E ^3 3 •x fu Z O � j Z 1 0 a Q 0 SIDEWALK THICKNESS CC = 6" AT DRIVEWAYS BC = 3.5" 8" MIN. SIDEWALK 3'-3" MIN. VARIES r PATH OF TRAVEL I 1.5% PREFERRED 1.6�' MAY 59, TO 159; 1 " LIP -SLOPE DRI VEWA y ROADWAY FOUNDATION SECTION A -A 12"x 1 z"x 4' WOOD STAKE OR APPROVED EQUAL WORK AREA FLOW 4" COMPACTED EARTH MOUND TOP OF GROUND V (MIN.) 50' MINIMUM GEOTEXTILE FILTER FABRIC) 6"MIN. PROFILE DRIVEWAY DETAIL NOT TO SCALE SILT FENCE SILT FENCE / HAYBALE BARRIER NOT TO SCALE EXISTING PAVEMENT (ISTING VEMEN' BEEHIVE OVERFL01 INVERT AT 6-1 ABOVE GRAD MOUND 5-IN BERI AROUND MANHOL BACKFILL AN COMPAC NATIVE S01 12-IN OVERFL01 PIPE IN RIPRAP PA B 'LE CONSTRUCTION SPECIFICATIONS: 1. STONE FOR A STABILIZATION CONSTRUCTION ENTRANCE SHALL BE 1 TO 2 INCH STONE, RECLAIMED STONE, OR RECYCLED CONCRETE EQUIVALENT. 2. THE LENGTH OF THE STABILIZED ENTRANCE SHALL NOT BE LESS THAN 50 FEET, EXCEPT FOR A SINGLE RESIDENTIAL LOT A 30 FOOT MINIMUM LENGTH WOULD APPLY. 3. THE THICKNESS OF THE STONE FOR THE STABILIZED ENTRANCE SHALL NOT BE LESS THAN 6 INCHES. 4. THE WIDTH OF THE ENTRANCE SHALL NOT BE LESS THAN A FULL WIDTH OF THE ENTRANCE WHERE INGRESS OR EGRESS OCCURS OR 10 FEET, WHICH EVER IS GREATER. 5. GEOTEXTILE FILTER CLOTH SHALL BE PLACED OVER THE ENTIRE AREA PRIOR TO PLACING THE STONE. FILTER CLOTH IS NOT REQUIRED FOR A SINGLE FAMILY RESIDENTIAL LOT. 6. ALL SURFACE WATER THAT IS FLOWING TO OR DEVERTED TOWARDS THE CONSTRUCTION ENTRANCE SHALL BE PIPED BENEATH THE ENTRANCE. IF PIPING IS IMPRACTICAL, A BERM WITH 5:1 SLOPES THAT CAN BE CROSSED BY VEHICLES MAY BE SUBSTITUTED FOR THE PIPE. 7. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC RIGHTS -OF -WAY. THIS MAY REQUIRE PERIODIC TOPDRESSING WITH ADDITIONAL STONE AS CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT. ALL SEDIMENT SPILLED, WASHED, OR TRACKED ONTO PUBLIC RIGHT- OF-WAY MUST BE REMOVED PROMPTLY. STABILIZED CONSTRUCTION ENTRANCE NOT TO SCALE COUPLE PERT UNDERDRAI TO SOLID PIP GEOTEXTILE FABRI ON BOTTOM 0 FXCAVATIO BEEHIVE INLET & 12-IN OVERFLOW PIPE CONN. TO 12-IN UNDERDRAIN COUPLE UNDERDRAIN' TO 12-IN SOLID PIPE DECIDUOUS TREE TYPE & SIZE PER SPECS CONCRETE MANHOLE LIMIT OF ROOTBALL r TREE BOX FILTER DETAIL NOT TO SCALE FIBERGLASS SEPARATION CYLINDER AND INLET TOP SLAB ACCESS (SEE FRAME AND COVER DETAIL) Aa +I-65° MAX. PLAN VIEW B-B N.T.S. INLET PIPE MULTIPLE INLET PIPES 'BE ACCOMMODATED) BAF SN SEPARA' SCF SOL STORE ..._ SUMP DECIDUOUS TREE TYPE AND SIZE PER SPECS, APPROX. CENTERED IN MANHOLE CURB CUT RIPRAP PAD PERVIOUS CONCRETE PAVEMENT SAND -SOIL MAX PER SPECS. 6-FT DIA. PRECAST MANHOLE 27-IN LAYER 0.5 CRUSHED STONE AGGREGATE 12-IN UNDERGROUND 12-IN PERF UNDERDRAIN OFFSET MIN. 1-FT FR. CENTER OF ROOTBALL 6-IN DIA. PRECAST MANHOLE 4-FT RISER RIPRAP PAD SAND -SOIL MIX, SEE SPECS CENTER OF CDS STRUCTURE, SCREEN AND SUMP OPENING P D' x� TOP SLAB ACCESS 120" [30481 I.D. MANHOLE STRUCTURE CONTRACTOR TO GROUT a +N' MO0O +'wO^0 d 2 O >%Z'm V 4 O C)c'J o`°� O av �.c0) °' ` H LL O Qa a C m J ca wcm o •L � a) rn m O w 0 c C N 2 N� L , Im i 1 c Lu �� - rn.. � cn M W u LA H u- ul W C _..J }' W N N V)Ln E O V LL J (*4fib :tfOz$M cn V) f14 00 v) N N V C) 0 0 i••, co L W }� N N f O Z w O w ui O CL d U N ELEVATION A -A N.T.S. NOTE: CONTECH CDS INLINE OR APPROVED EQUAL CONTECH CPS UNIT z NOT TO SCALE a a Q s' Yid:! < I >> .. '.i vl W IV N �, O i V) O� _ � � to t o 3 Q0 F_ 0 •— E a� •X 0 m o N Z 0 0 II / W> I / CD I n D 0 C :7 c) I 0> I �,omz 11 D� 7 I 4 _ v D I`) m m W OZ m O o ZD L �' m = D �, o m ZONE TO BVW \ R,19,70 0� \- rn -+ � z z CO I 1 p0' BUFFER v m c) m(Zm� om=z I cn °) z I o I R�19 44 I F0 I BT,NEWY N STREST D 0 Z6 ARLING 1237 ZB 260 OF 1 p0 F� LIMIT � PR ID PAGE \ 80AREA O I BOOK Pa P°rcel 6 ' RIVERFRONT ONE TO BVW I I / — — )FFER Z I I / o I 10000 N / / 153 I 100�FT ` ZONE \ F / Z o \ N \ I LIMIT REP 50' NO BUIL /IVERFRONT P 20 N I / 2--_� 4,�6 p.25 170. oo' ZONE N8 20 BUILD /� / 6 I / r- 9 --- '__1 --- --- O --� 50 NO / �I I I ---'1 18- - 17- 16' 20 _ ,__,,18---\-----_ /�// \\ 11 I\ l\I\ _�\ -_2p 1 _-, -� = 6 --1 --- - \ `P << 17_� %, ;�� 13--- _ _ 2,\ 1�-''a�i� \ \----------- 18 - // ,----- 16 '' - /�--14 ��\ �19- _ 18� - _ -_-----=1--' / _'C201 ^/ Q 18 - — _ — — — _ __ — — - 1 4 —� i — — 1 1 �smC �ul� �ul� �ul� yll� �ul� �ul� �ul� cvYi 0 0 d- / ff �` 1 CO 16 - 1 7 — — — _ _ �1 61 4 j 1 3 i ' T �.,u. �I�iulc �ul� �III� �ulc �ulc �ulc �ulc �ulc �ulc �ulc �ulc aulc ' ^ ^ // 1 LO /� _--- --12 /- ./ 6 _ — — / — 1.3 - — _ , >� /allrc ylLL �Il I, MILL I& MILL I& _\IILL I& _\IILL MILL MILL MILL �Illc — _\IL a11LL \V / 1 _--13------ - --- _ 72_ _� / \-___-_^ \\\ 1\71 I 1 I I / — — — — — — ` MILL aulc MILL aulc I MILL aulc MILL aulc MILL a0c MILL MILL MILL A u I _\IL I& _\IL I& _\IL _\IL aulc �IYC III c(— �u \ \\ \ 1 I �J_ •• / / — — _ �.•S — 11 — _ — ——' �Illc MILL aulc MILL aulc MILL aulc MILL MILL MILL MILL MILL MILL MILL /1Z -A,- _\IILL MILL / PROPOSED (2-STORY) MIXED USE BUILDING --__ ' .ni. .ni. MILL alllc MILL alllc MILL alllc MILL alllc ��y alllc alllc alllc alllc alllc alllc alllc alllc �IYc �IYc �14c alllc �IYc —/ \ \ \�ERT (FOOTPRINT = 7,150 S.F.) — / -C10 --��/ B16 \ \ \ O \ Co 9 _ �'' _ aulc aulc aulc aulc aulc aulc aulc aulc aulc aulc aulc aulc c11Yt aulc aulc aulc aulc aulc aulc aulc aulc \ , \ I 6'0 7 6' / /: / AL�Illc MILL aulc MILL aulc MILL aulc MILL aulc MILL aulc MILL aulc MILL T aulc MILL aulc MILL aulc MILL aulc MILL\\ \ 'O I IS R�22•� \ 1 MILL MILL y�lv �C MILL MILL aulc MILL MILL MILL MILL aulc MILL aulc MILL aulc MILL >uLL >uLL >uLL >uLL >uLL >uLL >uLL >Iuc >uLL >Iut �Illc �Ill,fj MILL �Illc �Ilr MILL �Illc MILL �Illc MILL �Illc MILL auLL MILL auLL MILL auLL MILL/MILL MILL auLL MILL auLL /, 6c auLL auLL auLL auLL auLL auLL auLL auLL aulc I I I j BIO-WATTLE EROSION 7 \ / ILL MILL �I lc MILL �I lc MILL �I lc MILL �I lc MILL �I lc MILL �I lc �III� �Illc MILL �Illc MILL �Illc MILL �Illc MILL auLL �Iuc uLL ]I6.__*0 /AL _t,/IAL AII AII auLL auLL auLL auLL auLL auLL auLL auLL ' i ' I I CONTROL BARRIER L-2 MILL MILL MILL �Ia �Ia AU AU AU AU AU MILL MILL AN[„ AOc MILL MILL MILL MILL MILL MILL MILL a11LL MILL � - � / � / LL IJ LL a1111111LL IJL BORDERING VEGETATED WETLAND 1LL a1LL a1LL a1LL a1LL a -L A BVW SHRUB uLL ALL AU AU AU AU AU AU A4 MILL MLL MLL MLL MLL MLL MLL MLL (BVW) RESOURCE AREA JL JL JL JL *_,dt,,,ul� -AA / / BVW NOT WITHIN PLANTING OR RESTORATION AREA TO HAVE MILL MILL ENHANCEMENT AREA ,TILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL 41114 �tllt LL �Illt �Illt �Illt IIllt IIllt lIllt / Q TRASH REMOVED AND LARGE STANDS OF INVASIVE PLANTS ARE / AU A 6,080± S.F. h4 JU JU AU AU AU AU AU A4 ML TO BE HAND PULLED.NO GRADING OR MACHINERY IN THIS AREA. *1 QV -M ,& J& J& A� // // ^ ' MILL MILL , AU � L (� al LL MILL �I lc MILL �I lc MILL �Illc MILL �Illc MILL MILL MILL \y/ILL MILL 1 �uLL -NuLL -NuLL 1uLL IIII 11UL S1IIIc 0) -NuLL 1uLL �—Au Au MILL MILL MILL MILL MILL MILL BVW FILL AREA TILL ,ILL ,Ik ,Ik ,Ik ,Ik ,Ik ,ILL ,IL ,IL ,IL ,IL ,IL ,111c ,111c ,111c ,111c ,111c ,111c ,111c\ _.d� MILL MILL MILL MILL MILL MILL MILL MILL MILL �JL / ' / WETLAND MITIGATION 2,580±S.F' t} 4215±S.F. MILL MILL MILL �Ik �Ik �Ik �Ik MILL MILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL SILL �JL a& ' (6,930±S.F.TOTAL) TILL 11LL HILL 11LL 11L 11L 11L MILL BWLL ORTHERN BANK (392 L.F.) 814 ,TILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL MILL ' MILL �Nc �ylLL �Illc �Wc �Wc MILL �[LL �[LL �[LL �[LL �[LL �JLL �JLL �JLL �JLL �JLL TILL MILL �5 MILL MILL MILL �IL aJL MILL SILL �i- � � �ulc,�OlLL �JLL \ I �uLL �uLL 1 • I / N UPLAND STABILIZATION 1-3 8 / �uLL ER LAND UND B ' �� , I / / o / AREA (810± S.F. TOTAL) L-2 L-2 L-2 uLL y�/ �uLL �LL WATER /" / ' /. I �°' / / Y / 1 � � uLL �uLL �uLL y -14 MILL � � Ills � � MILL MILL MILL �IYc �IYc �IYc ` / / • • : / // ^ / // /' ' / i JILL MILL SILL � MILL SILL � / SOUTHERN BANK (370 L.F. jMILL SILL AU MILL SILL �Ik SILL �Ik �Ik �LL �JLL �JLL �JLL AIL WLL �JLL �JLL �JLL nlu �JLL SILL SILL �JL �IYc 1t• / /// 6•' // ''' �/ Jilt MILL ' ' / MILL MILL MILL MILL MILL MILL MILL / • / / 1 / 00 \ \ r BORDERING VEGETATED WETLAND I / / • • _ _-' N // �/ NON-BVW TRASH REMOVAL �U AB � e� UL (BVW) RESOURCE AREA uLL �JL �JL �JL �JL �JL �Ik BVW NOT WITHIN PLANTING OR RESTORATION AREA TO HAVE — 11 — / / / / / / AREA (8,030± S.F. TOTAL) Jilt MLL `^�Ilc a& �IILLiSLL—A—k A auLL III / / / TRASH REMOVED AND LARGE STANDS OF INVASIVE PLANTS ARE i — — — _ / / R:�i,_bIU-VVH I I Lt tKUJIUIN / CONTROL BARRIER L-2 i �ULV 1R�I INV BVW MITIGATION AREA (6.930 sf) Mitigation area to be cleared of invasive plant material and trash, graded, stabilized and seeded Wetland Restoration Area Seed Mix. In addition, the area will be planted with the following site appropriate woody tree and shrubs. SHRUB AREA SCIENTIFIC NAME/ COMMON NAME QUANTITY HEIGHT SPACING Clethra alnifolia / Summersweet Clethra 60 2'-3' Ht 36" on Center Cornus amomum / Silky Dogwood 60 2'-3' Ht 36" on Center Ilex verticillata / Winterberry 48 2'-3' Ht 36" on Center Lindera benzoin / Spicebush 48 2'-3' Ht 36" on Center Photinia pyrifolia / Red Chokeberry 60 2'-3' Ht 36" on Center Salix discolor/ Pussy Willow 60 2'-3' Ht 36" on Center Sambucus canadensis / Elderberry 60 2'-3' Ht 36" on Center Spiraea tomentosa / Steeplebush 48 2'-3' Ht 36" on Center Viburnum dentatum / Viburnum 48 2'-3' Ht 36" on Center • Acer rubrum / Red Maple 8 4'-6' Ht �• Carpinuscaroliniana/AmericanHornbeam 114'-6'Ht Shrubs shall be planted in clusters of 2 or 3, and installed not less than 3 feet on center. A wetland specialist or landscape architect shall provide supervision of the plant layout. Plant substitutions mat be necessary due to commercial availability. Substitutions shall be approved by the supervising wetland scientist or landscape architect and the Town agent. BVW SHRUB ENHANCEMENT AREA (6.080sf) Shrub enhancement area to help stabilize soils adjacent proposed structures, parking areas and roadways. Material to be hand planted. No grading or heavy machinery in this area. SHRUB AREA SCIENTIFIC NAME/ COMMON NAME QUANTITY HEIGHT SPACING Clethra alnifolia / Summersweet Clethra 30 2'-3' Ht 36" on Center Cornus amomum / Silky Dogwood 30 2'-3' Ht 36" on Center Ilex verticillata / Winterberry 24 2'-3' Ht 36" on Center Lindera benzoin / Spicebush 24 2'-3' Ht 36" on Center Photinia pyrifolia / Red Chokeberry 30 2'-3' Ht 36" on Center Salix discolor/ Pussy Willow 30 2'-3' Ht 36" on Center Sambucus canadensis / Elderberry 30 2'-3' Ht 36" on Center Spiraea tomentosa / Steeplebush 24 2'-3' Ht 36" on Center Viburnum dentatum / Viburnum 24 2'-3' Ht 36" on Center Area to receive Wetland Restoration Area mix at prescribed rate. Shrubs shall be planted in clusters of 2 or 3, and installed not less than 3 feet on center. A wetland specialist or landscape architect shall provide supervision of the plant layout. Plant substitutions mat be necessary due to commercial availability. Substitutions shall be approved by the supervising wetland scientist or landscape architect and the Town agent. UPLAND STABILIZATION AREA (810 sf) Graded upland area to be seeded with an appropriate seed mix, stabilized with erosion control fabric, and planted with appropriate colonizing shrubs for long-term slope stabilization. SHRUB AREA SCIENTIFIC NAME/ COMMON NAME QUANTITY HEIGHT SPACING Cornus racemosa / Gray Dogwood 15 2'-3' Ht 36" on Center Prunus depressa / Sand Cherry 15 2'-3' Ht 36" on Center Area to receive Upland Slope Stabilization mix at prescribed rate. Shrubs shall be planted in clusters of 2 or 3, and installed not less than 3 feet on center. A wetland specialist or landscape architect shall provide supervision of the plant layout. Plant substitutions mat be necessary due to commercial availability. Substitutions shall be approved by the supervising wetland scientist or landscape architect and the Town agent. WETLAND MITIGATION PLANT SCHEDULE Scale: NTS ' 1 "G, to/ / / / Wetland Mitigation Notes: I 1. The overall objective of this mitigation area is to create bordering vegetated wetland to mitigate for the alteration of existing bordering vegetated wetland. OP � E _100�� / / / / SURREY TON STREO / / 2. Construction of the mitigation areas shall be done under the guidance of a wetland specialist. The wetland scientist shall be on site � / 36 P,Fu p 1236 PGE 539 verifying the limit of work, the creation of micro -topography, and checking grades during excavation of the mitigation area. P PR 44591 Pt Of Way gpOK de R19h K 3. Mitigation Area Goals: "20 �' PdrGel / a. At a minimum, 75% cover with native wetland species within two years of installation. i / WETLAND MITIGATION AREA (6,930± S.F. TOTAL) � / ZONE I 50' NO BUILD OY, TREETEE SEE STR No9 E16 4 G 5 �E 23, 2 ID 123 PGE 44 P PR 16459 P BOOK dot G i LIMIT OF 100-FT Rl VI�RFRON T AREA O 10 0 BUFFER ZONE TgvW / I / — I I I I I I I I� GRAPHIC SCALE ( IN FEET ) 1 inch 4" = 2CIt. Prepared by: S_WCA ENVIRONMENTAL CONSULTANTS 15 Research Drive (p) 41 3.256.0202 Amherst, MA 01002 (fl 41 3.256.1092 www.swca.com Prepared For: Maximos Hatziihades 71 Arlington Street Watertown, MA 02472 LEGEND PROPERTY LINE ® LAND UNDER WATER BORDERING VEGETATED WETLANDS (BVW) TRASH CLEANUP AND INVASIVE PLANT CONTROL ONLY AREA PROPOSED BVW FILL AREA PROPOSED BUILDING ENVELOPE - - 10 - - EXISTING MAJOR CONTOURS - EXISTING MINOR CONTOURS 10 PROPOSED CONTOURS — ECB — BIO-WATTLE EROSION CONTROL DELINIATION FLAG POINT b. Long term: the establishment of a vegetated wetland PERMIT DRAWINGS ORIGINAL PLAN SIZE 24"X36" 4. Prior to construction, straw wattle will be installed as shown on the plans and shall include the boundary of the wetland mitigation area. Project Title: 5. Topsoil from on -site locations may be used if approved by the project wetland specialist (see note 6). Otherwise, manufactured soil using equal portions of mineral and organic materials must be used resulting in not less than 10%-12% organic carbon content by dry weight (or 19%-21% organic matter) as recommended in the ACOE New England District Mitigation Guidelines. Arlington Street and Elm Street Redevelopment Mitigation Plan 6. Prior to translocation of topsoil to the wetland mitigation areas, the topsoil source shall be inspected and approved by the project Parcel ID: 1 236-2-0 wetland specialist. Topsoil used for the wetland mitigation area shall have a texture of sandy loam, have a relatively high organic matter content, and must not contain invasive species. Otherwise, manufactured soil as specified in note #5 shall be used. Sheet Title: 7. The mitigation area final grade shall match the adjacent wetland. The area shall be excavated to the level of 12" below finish grade. The sub -grade shall then be checked by the wetland specialist to ensure proper hydrology has been achieved, and then filled with the approved soil backfill (see notes 5 and 6). Any compaction caused by excavation shall be alleviated and a friable "planting bed" consistency shall be prepared. RESOURCE AREA MITIGATION PLAN 9. Plant substitutions due to commercial availability or hydrological conditions must be approved by the project wetland specialist and Date: 03-10-2021 approved by the Conservation Commission. The wetland mitigation areas proposed to be planted with native woody and herbaceous species, then seeded with native seed. (See Plant Mitigation Schedule) Drawn by: TS 10. The mitigation area shall be monitored twice annually (Spring and Fall) for the removal of invasive species, plant health of the mitigation Checked by: CB/VM plantings , and hydrologic conditions for a period of two years following construction. SWCA File # 59467.00 11. The mitigation area shall be monitored for noxious and invasive non -indigenous weed species according to the "Massachusetts Revisions: Invasive Plants Advisory Group" plant list. Invasive plant species found on site include; Phalaris arundinacea, Phragmites australis, and Celastrus orbiculatus. These and all other state listed invasive plant species shall be reported and removed from the mitigation area if found. 12. / The environmental scientist will notify the Watertown Conservation Commission if "Plants Noted as Invasive" are observed during the monitoring events within 30 days of discovery. 13. For each species determined to be present, an environmental scientist will record locations, relative abundance, factors important to establishing a threat level, and corrective measures to be taken. Corrective measures shall depend on the species and density of invasive species. Annual reports shall be provided by December 30th of each year until the monitoring period has ended. 14. 80 Annual reports including color photographs and a description of all monitoring activities shall be provided at the Conservation Commission's request. A request for a Certificate of Compliance shall be submitted following the 2nd year of monitoring showing compliance with project goals. Scale: As shown 15. The erosion control barrier between the wetlands and mitigation areas shall be removed upon stabilization of the mitigation areas and the area raked to eliminate any berm that may be present between the wetland mitigation areas and the adjacent BVW. Any bare soil that results from the removal of the erosion controls shall be seeded with the specified seed mix. All stakes and twine shall be removed. L-1 Prepared by: Notes: 1- Trees shall be of quality prescribed in crown observations and root observations details and specifications. 2- See specifications for further requirements related to this detail. Trunk caliper shall meet ANSI Z60 current edition for root ball size. Root ball modified as required. Round -topped soil berm 4" high x 8" wide above root ball surface shall be constructed around the root ball. Berm shall begin at root ball periphery. Bottom of root ball rests on existing or recompacted soil. TREE PLANTING DETAIL Scale: NTS 3x widest dimension of root ball. Shrub. I.III=III • • " • " III=III=III—III—III-II �m�mm MEN MENEM . -. ell1=111=III=111=III=III.II_! II=111=III=III=111=1�!=iil= "Ile ' "' :III=III=III=I�!='11.11= Root ball rests on existing or recompacted soil. 1w Root ball surface shall be positioned to be one - quarter above finished grade. Prior to mulching, lightly tamp soil around the root ball in 6" lifts to brace tree. Do not over ol compact. When the planting hole has been backfilled, pour water around the root ball to settle the soil. Existing site soil added to create a smooth transition from the top of the raised root ball to the finished grade at a 15% max. slope. 4" layer of mulch. No more than 1" of mulch on top of root ball. (See specifications for mulch). Original grade. Finished grade. Loosened soil. Dig and turn the soil to reduce compaction to the area and depth shown. Existing soil. Rootball 4" high x 8" wide round - topped soil berm above root ball surface shall be constructed around the root ball. Berm shall begin at root ball periphery. 111MIN =cm 111 ' '' • • • . _III=III=III=�._ 111E111E111011= _III=III=111=111— III—III-111—III—I 3x's widest dimension of root ball. 1.9 '1 SECTION VIEW Notes: 1- Shrubs shall be of quality prescribed in the root observations detail and specifications. 2- See specifications for further requirements related to this detail. SHRUB PLANTING DETAIL Scale: NTS 3 TREE SPACING (TYP.) Scale: NTS 2"X2"X36" WOOD STAKES, EVERY 5' O.C. BLOWN/PLACED FILTER MEDIA WORK AREA 12" MIN New Fnaland Frnsion Contrnl/Restoratinn Mix For nP_tP_ntlnn gasins and Mnist Sites Botanical Name Common Name Indicator Elymus riparius Riverbank Wild Rye FACW Schizachyrium scoparium Little Bluestem FACU Festuca rubra Red Fescue FACU Andropogon gerardii Big Bluestem FAC Panicum virgatum Switch Grass FAC Vernonia noveboracensis New York Ironweed FACW+ Agrostis perennans Upland Bentgrass FACU Bidens frondosa Beggar Ticks FACW Eupatorium maculatum (Eutrochium maculatum) Spotted Joe Pye Weed OBL Eupatorium per-foliatum Boneset FACW Aster novae-angliae (Symphyotrichum novae-ar lia) New England Aster FACW- Scirpus cyperinus IWOOI Grass FACW Juncus effusus ISoft Rush I FACW+ Apply: 18 Ibs/acre 5 BIO-WATTLE EROSION CONTROL Scale: NTS WETLAND RESTORATION AREA SEED MIX Scale: NTS Source: Seed mixes referenced herein are provided by New England Wetland Plants, Inc. BIOWATTLE SOCK (12" TYP.) AREA TO BE PROTECTED NOTES: 1. ALL MATERIAL TO MEET MANUFACTURER SPECIFICATIONS. 2. FILL MATERIAL TO MEET APPLICATION REQUIREMENTS. 3. COMPOST MATERIAL TO BE DISPERSED ON SITE, AS DETERMINED BY ENGINEER. MITIGATION FINISH GRADE 12-INCH SUBGRADE EXCAVATION DEPTH EXISTING WETLAND New Enaland Erosion Control/Restoration Mix for Dry Sites Botanical Name Common Name Indicator Elymus canadensis Canada Wild Rye FACU+ Festuca rubra Red Fescue FACU Lolium multiflorum Annual Ryegrass Lolium perenne Perrenial Ryegrass Schizachyrium scoparium Little Bluestem FACU Panicum virgatum Switch Grass FAC Sorghastrum nutans Indian Grass UPL Apply: 35 Ibs/acre OVERLAP COIR MAT 8" MINIMUM TOE FABRIC INTO SLOPE A MINIMUM 2'-0" SLOPE ° 70% STRAW, 30% COIR EROSION CONTROL FABRIC ON SIDE SLOPES. TOED INTO SOIL (MIN 2' ON THE TOP AND BOTTOM) AND STAPLED EVERY 12" ON THE EDGES AND 18" O.C. IN THE MIDDLE :7 6" METAL TURF STAPLE 4 a 1UPLAND SLOPE STABILIZATION SEED MIX Scale: NTS Source: Seed mixes referenced herein are provided by New England Wetland Plants, Inc. ° ° ° ° ° ° ° ° u ° APLE EVERY 18" O.C. IN E MIDDLE OF THE FABRIC STAPLE EVERY 2" ON EDGE 6" TOPSOIL TOE FABRIC INTO SOIL A MIN. OF 2'-0" BIODEGRADABLE EROSION CONTROL FABRIC SLOPE STABILIZATION DETAIL Scale: NTS EROSION CONTROL FABRIC NOTES: 1. SLOPE SURFACE SHALL BE FREE OF ROCKS, CLODS, STICKS AND GRASS TO ENSURE THAT THE EROSION CONTROL FABRIC WILL HAVE GOOD SOIL CONTACT. 2. APPLY PERMANENT SEEDING BEFORE PLACING EROSION CONTROL FABRIC. 3. LAY FABRIC LOOSELY AND STAPLE TO MAINTAIN DIRECT CONTACT WITH THE SOIL. DO NOT STRETCH. 4. STAPLE FABRIC WITH 6" STAPLES. STAPLE FABRIC EVERY 12" ON SIDES, TOP AND BOTTOM. 18" O.C. IN THE MIDDLE OF THE FABRIC. (PER MANUFACTURES SPECIFICATIONS) 5. THE EROSION CONTROL FABRIC TO BE INSTALLED IN SECTIONS RUNNING FROM THE TOP TO THE BOTTOM OF THE SLOPE, ALONG THE ENTIRE AREAS AS SHOWN ON THE PLAN (PER MANUFACTURES SPECIFICATIONS) 6. EROSION CONTROL FABRIC SHALL USE BIODEGRADABLE (NON -PLASTIC) NETTING 7. TO BE USED ONLY IN AREAS OF TEMPORARY SOIL DISTURBANCE ON SLOPES ADJACENT TO THE POND. 8. FLAT SURFACES SHALL RECEIVE STRAW MULCH APPLIED TO THE GROUND SURFACE AT A RATE OF 2,500 LBS./ACRE. SWCA- ENVIRONMENTAL CONSULTANTS 15 Research Drive (p) 41 3.256.0202 Amherst, MA 01002 (f) 41 3.256.1092 www.swca.com Prepared For: Maximos Hatziiliades 71 Arlington Street Watertown, MA 02472 PERMIT DRAWINGS I ORIGINAL PLAN SIZE 24"X36" Project Title: Arlington Street and Elm Street Redevelopment Mitigation Plan Parcel ID: 1 236-2-0 Sheet Title: DETAILS Date: 03-10-2021 Drawn by: TS Checked by: CB/VM SWCA File # 59467.00 Revisions: Scale: As Shown L-2