HomeMy Public PortalAboutExhibit MSD 84L3 - Grand Glaize Wastewater Treatment FacilityExhibit MSD 84L3
Page 2 of 13
Permit No. MO-0101362
FACILITY DESCRIPTION (continued)
Outfall 4001 — POTW — SIC #4952
Lift station/primary clarification/activated sludge/chlorination/dechlorination/gravity sludge thickening & belt filter press/sludge is
hauled to other MSD facilities, landfilled, land applied, or composted.
Design population equivalent is 210,000.
Design flow is 21 MGD.
Actual flow is 17 MGD.
Design sludge production is 5840 dry tons/year.
Legal Description: NW'/,, SW %,, SW'/,, Sec. 16, T44N, R5E, St. Louis County
Latitude/Longitude: 3 832571/-09028159
Receiving Stream: Meramec River (P)
First Classified Stream and ID: Meramec River (P) (02183)
USGS Basin & Sub -watershed No.: (07140102-080003)
Outfall #002 — POTW — SIC #4952
Three cell lagoon/wet weather flow retention/flow equalization/sludge is retained in lagoon.
Discharged flow enters main outfall 4001 pipe.
Legal Description: NW'/,, SW %, SW'/,, Sec. 16, T44N, R5E, St. Louis County
Latitude/Longitude: 3833341/-09028284
Receiving Stream: Meramec River (P)
First Classified Stream and ID: Meramec River (P) (02183)
USGS Basin & Sub -watershed No.: (07140102-080003)
Outfall #003 - POTW - SIC #4952
Stormwater runoff/no treatment.
Legal Description: SE %, SE'h, SE'/,, Sec. 8, T44N, R5E, St. Louis County
Latitude/Longitude: 3 8 33413/-09028270
Receiving Stream: Unnamed Tributary to Grand Glaize Creek (U)
First Classified Stream and ID: Grand Glaize Creek (P) (02184)
USGS Basin & Sub -watershed No.: (07I40102-080003)
Outfall #004 - POTW - SIC #4952
Stormwater runoff/no treatment.
Legal Description: SE %, SE '/, SE '/,, Sec. 8, T44N, R5E, St. Louis County
Latitude/Longitude: 3833420/-09028245
Receiving Stream: Unnamed Tributary to Grand Glaize Creek (U)
First Classified Stream and ID: Grand Glaize Creek (P) (02184)
USGS Basin & Sub -watershed No.: (07140102-080003)
Outfall #005 - POTW - SIC #4952
Stormwater runoff/no treatment.
Legal Description: SW'/<, SW'/,, SW %, Sec. 9, T44N, R5E, St. Louis County
Latitude/Longitude: 3 83 3441 /-09028447
Receiving Stream: Unnamed Tributary to Grand Glaize Creek (U)
First Classified Stream and ID: Grand Glaize Creek (P) (02184)
USGS Basin & Sub -watershed No.: (07140102-080003)
Outfall #006 - POTW - SIC #4952
Stormwater runoff/no treatment.
Legal Description: SW '/, SW '/<, SW '/,, Sec. 9, T44N, R5E, St. Louis County
Latitude/Longitude: 3833451 /-09028162
Receiving Stream: Unnamed Tributary to Grand Glaize Creek (U)
First Classified Stream and ID: Grand Glaize Creek (P) (02184)
USGS Basin & Sub -watershed No.: (07140102-080003)
PAGE NUMBER 3 of 13
A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
PERMIT NUMBER MO-0I01362
The permittee is authorized to discharge from outfall(s) with serial number(s) as specified in the application for this permit. The final effluent
limitations shall become effective upon issuance and remain in effect until expiration of the permit. Such discharges shall be controlled, limited and
monitored by the permittee as specified below:
OUTFACE NUMBER AND EFFLUENT
FINAL EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
PARAMETER(S)
UNITS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MEASUREMENT SAMPLE
FREQUENCY TYPE
Outfall #001
Flow
Temperature
Carbonaceous Biochemical Oxygen
Demands
Total Suspended Solids
pH — Units
Fecal Coliform (note 1)
Chlorine, Total Residual (note 2)
Ammonia Nitrogen, Total
Oil & Grease
MGD
°C
mg/L
mg/L
SU
#/100 ml
mg/L
mg/L
mg/L
*
*
***
1000
.024
(.13 ML)
12.6
15
40
45
*
*
25
30
***
400
.012
(.13 ML)
6.3
10
once/day 24 hr. total
once/weekday** grab
once/weekday** 24 hr. comp.
once/weekday** 24 hr. comp.
once/weekday** grab
twice/week grab
twice/week grab
twice/week grab
once/week grab
MONITORING REPORTS SHALL BE SUBMITTED MONTHLY; THE FIRST REPORT IS DUE April 28, 2009 .
Outfall #001
Cadmium, Total Recoverable
Chromium, Total Recoverable
Copper, Total Recoverable
Lead, Total Recoverable
Mercury, Total Recoverable
Nickel, Total Recoverable
Zinc, Total Recoverable
µg/L
µg/L
µg/L
µg/L
µg1L
µg/L
µg/L
2.2
*
*
22.1
1.2
*
*
0.9
*
*
8.8
.8
*
*
once/quarter**** grab
once/quarter**** grab
once/quarter**** grab
once/quarter**** grab
oncelquarter**** grab
once/quarter**** grab
once/quarter**** grab
MONITORING REPORTS SHALL BE SUBMITTED OUARTERLY; THE FIRST REPORT IS DUE April 28, 2009 .
Outfall #001
See Special Condition #17
*
twice/year 24 hour
in March composite
and September
once/year in July grab
Whole Effluent Toxicity
(WET) Test (AEC 79.5%)
Total Toxic Organics
(note 3)
% Survival
mg/L
MONITORING REPORTS SHALL BE SUBM
IED ANNUALLY ; THE FIRST REPORT IS DUE October 28, 2009 . THERE SHALL BE
NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS,
B. STANDARD CONDITIONS
IN ADDITION TO SPECIFIED CONDITIONS STATED HEREIN, THIS PERMIT IS SUBJECT TO THE ATTACHED Parts I. II & III
STANDARD CONDITIONS DATED October 1, 1980 and August 15, 1994, AND HEREBY INCORPORATED AS THOUGH FULLY SET
FORTH HEREIN.
A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
PAGE NUMBER 4 of 13
1
PERMIT NUMBER MO-0101362
The permittee is authorized to discharge from outfall(s) with serial number(s) as specified in the application for this permit. The final effluent
limitations shall become effective upon issuance and remain in effect until expiration of the permit. Such discharges shall be controlled, limited and
monitored by the permittee as specified below:
OUTFALL NUMBER AND EFFLUENT
PARAMETER(S)
UNITS
FINAL EFFLUENT LIMITATIONS
i
MONITORING REQUIREMENTS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MEASUREMENT SAMPLE
FREQUENCY TYPE
Outfall #002
MGD
mg/L
mg/L
SU
#/1 00mL
mg/L
°C
MGD
inches
mg/L
mL/L/hr
SU
mg/L
#/100 mL
*
***
*
*
*
*
*
*
1.5
***
15
*
45
45
*
***
*
*
*
*
*
*
1.0
***
10
*
once/discharge/day 24 hr. estimate
once/discharge/day grab
once/discharge/day grab
once/discharge/day grab
once/discharge/day grab
once/discharge/day grab
once/discharge/day grab
once/quarter**** instantaneous
estimate
once/quarter**** total
once/quarter**** grab
once/quarter**** grab
once/quarter**** grab
once/quarter**** grab
once/quarter**** grab
now
Biochemical Oxygen Demands
Total Suspended Solids
pH — Units
Fecal Coliform (note 1)
Ammonia Nitrogen, Total
Temperature
Outfalls #003 through #006
(Stormwater)
Flow
Rainfall
Biochemical Oxygen Demands
Settleable Solids
pH — Units
OH & Grease
Fecal Coliform (note I)
MONITORING REPORTS SHALL BE SUBM
DISCHARGE OF FLOATING SOLIDS OR VISIBLE
TTED OUARTERLY; THE F
RST REPORT
TRACE AMOUNTS.
IS DUE April 28, 2009 . THERE SHALL BE NO
FOAM IN OTHER THAN
B. STANDARD CONDITIONS
IN ADDITION TO SPECIFIED CONDITIONS STATED HEREIN, THIS PERMIT
STANDARD CONDITIONS DATED October I. 1980 and August 15, 1994, AND
IS SUBJECT TO THE
HEREBY INCORPORATED
ATTACHED Parts 1, II & III
AS THOUGH FULLY SET
FORTH HEREIN.
MO 760-0010 {NI)
A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (continued)
* Monitoring requirement only.
** Once each weekday means: Monday, Tuesday, Wednesday, Thursday, and Friday.
*** pH is measured in pH units and is not to be averaged. The pH is limited to the range of 6.0-9.0 pH units
**** See table below for quarterly sampling.
Note 1 — Final limitations and monitoring requirements for Fecal Coliform are applicable only during the recreational season from
April 1 through October 31.
Page 5 of 13
Permit No. MO-0I01362
A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (continued)
Note 2 — This permit contains a Total Residual Chlorine (TRC) limit.
(a) This effluent limit is below the minimum quantification level (ML) of the most common and practical EPA approved CLTRC
methods. The department has determined the current acceptable ML for total residual chlorine to be 0.13 mg/L when using
the DPD Colorimetric Method #4500 — CL G. from Standard Methods for the Examination of Waters and Wastewater. The
permittee will conduct analyses in accordance with this method, or equivalcnt, and report actual analytical values. Measured
values greater than or equal to the minimum quantification level of 0.13 mg/L will be considered violations of the permit and
values less than the minimum quantification level of 0.13 mg/L will be considered to be in compliance with the permit
limitation. The minimum quantification level does not authorize the discharge of chlorine in excess of the effluent limits
stated in the permit.
(b) Disinfection is required year-round unless the permit specifically states that "Final limitations and monitoring requirements
for Fecal Coliform are applicable only during the recreational season from April 1 through October 31." If your permit does
not require disinfection during the non -recreational months, do not chlorinate in those months.
(c)
Do not chemically dechlorinate if it is not needed to meet the limits in your permit.
(d) If no chlorine was used in a given sampling period, an actual analysis is not necessary. Simply report as "0 mg/L" TRC.
Note 3 — See Total Toxic Organics page.
Quarterly Monitoring Table
Sample discharge at least once for the months of:
Report is due:
January, February, March (1st Quarter)
April, May, June (2nd Quarter)
July, August, September (3rd Quarter)
October, November, December (4th Quarter)
April 28
July 28
October 28
January 28
C. INFLUENT MONITORING REQUIREMENTS
The facility is required to meet a removal efficiency of 85% or more. The monitoring requirements shall become effective upon issuance and remain in
effect until expiration of the permit. To determine removal efficiencies, the influent wastewater shall be monitored by the permittee as specified below:
SAMPLING LOCATION AND
PARAMETER(S)
UNITS
MONITORING REQUIREMENTS
MEASUREMENT FREQUENCY
SAMPLE TYPE
Influent
mg/L
mg/L
once/month*
once/month*
24 hr. composite
24 hr. composite
Biochemical Oxygen Demands
Total Suspended Solids
MONITORING REPORTS SHALL BE SUBMITTED
MONTHLY; THE FIRST REPORT IS DUE April 28, 2009 .
MO 780-0010 (8f91)
C. INFLUENT MONITORING REQUIREMENTS (continued)
* Additional monitoring may be required in order to comply with 10 CSR 20-9.010.
Page 6 of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS
1. This permit may be reopened and modified, or alternatively revoked and reissued, to:
(a) Comply with any applicable effluent standard or limitation issued or approved under Sections 301(b)(2)(C)
and (D), 304(b)(2), and 307(a) (2) of the Clean Water Act, if the effluent standard or limitation so issued or
approved:
(1) contains different conditions or is otherwise more stringent than any effluent limitation in the permit; or
(2) controls any pollutant not limited in the permit.
(b) Incorporate new or modified effluent limitations or other conditions, if the result of a waste load allocation
study, toxicity test or other information indicates changes are necessary to assure compliance with Missouri's
Water Quality Standards.
(c) Incorporate new or modified effluent limitations or other conditions if, as the result of a watershed analysis, a
Total Maximum Daily Load (TMDL) limitation is developed for the receiving waters which are currently
included in Missouri's list of waters of the state not fully achieving the state's water quality standards, also
called the 303(d) list.
The permit as modified or reissued under this paragraph shall also contain any other requirements of the Clean
Water Act then applicable.
2. All outfalls must be clearly marked in the field.
3. Report as no -discharge when a discharge does not occur during the report period.
4. Changes in Discharges of Toxic Substances
The permittee shall notify the Director as soon as it knows or has reason to believe:
(a) That any activity has occurred or will occur which would result in the discharge of any toxic pollutant which
is not limited in the permit, if that discharge will exceed the highest of the following "notification levels:"
(1) One hundred micrograms per liter (100 µa);
(2) Two hundred micrograms per liter (200 pg/L) for acrolein and acrylonitrile; five hundred micrograms
per liter (500 µg/L) for 2,5 dinitrophenol and for 2-methyl-4, 6-dinitrophenol; and one milligram per
liter (1 mg/L) for antimony;
(3) Five (5) times the maximum concentration value reported for the pollutant in the permit application;
(4) The level established in Part A of the permit by the Director.
(b) That they have begun or expect to begin to use or manufacture as an intermediate or final product or
byproduct any toxic pollutant, which was not reported in the permit application.
(c) That the effluent limit established in part A of the permit will be exceeded.
5. Sludge and Biosolids Use For Domestic Wastewater Treatment Facilities
(a) Permittee shall comply with the pollutant limitations, monitoring, reporting, and other requirements in
accordance with the attached permit Standard Conditions.
(b) Permittee is authorized to land apply biosolids, to use biosolids in mine reclamation projects, to compost
biosolids, to landfill biosolids, or to use other DNR approved methods for disposal. Permit Standard
Conditions, Part III shall apply to the land application of biosolids. The department may require submittal of
a biosolids management plan for department review and approval as determined appropriate on a case -by -case
basis.
Page 7 of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS (continued)
6. Water Quality Standards
(a) Discharges to waters of the state shall not cause a violation of water quality standards rule under 10 CSR 20-
7.031, including both specific and general criteria.
(b) General Criteria. The following general water quality criteria shall be applicable to all waters of the state at
all times including mixing zones. No water contaminant, by itself or in combination with other substances,
shall prevent the waters of the state from meeting the following conditions:
(1) Waters shall be free from substances in sufficient amounts to cause the formation of putrescent,
unsightly or harmful bottom deposits or prevent full maintenance of beneficial uses;
(2) Waters shall be free from oil, scum and floating debris in sufficient amounts to be unsightly or prevent
full maintenance of beneficial uses;
(3) Waters shall be free from substances in sufficient amounts to cause unsightly color or turbidity,
offensive odor or prevent full maintenance of beneficial uses;
(4) Waters shall be free from substances or conditions in sufficient amounts to result in toxicity to human,
animal or aquatic life;
(5) There shall be no significant human health hazard from incidental contact with the water;
(6) There shall be no acute toxicity to livestock or wildlife watering;
(7) Waters shall be free from physical, chemical or hydrologic changes that would impair the natural
biological community;
(8) Waters shall be free from used tires, car bodies, appliances, demolition debris, used vehicles or
equipment and solid waste as defined in Missouri's Solid Waste Law, section 260.200, RSMo, except as
the use of such materials is specifically permitted pursuant to section 260.200-260.247.
7. All involved personnel shall be trained in material handling and storage, and housekeeping of maintenance area.
Upon request, proof of training shall be submitted to the Department.
S. All paint, solvents, petroleum products and petroleum waste products (except fuels), and storage containers (such as
drums, cans, or cartons) shall be stored so that these materials are not exposed to storm water. Spill prevention,
control, and/or management shall be provided sufficient to prevent any spills of these pollutants from entering a
water of the state. Any containment system used to implement this requirement shall be constructed of materials
compatible with the substances contained and shall also prevent the contamination of groundwater.
9. Good housekeeping practices shall be maintained on the site to keep solid waste from entry into waters of the state.
10. All fueling facilities present on the site shall adhere to applicable federal and state regulations concerning
underground storage, above ground storage, and dispensers, including spill prevention, control and counter
measures.
11. Substances, regulated by federal law under the Resource Conservation and Recovery Act (RCRA) and
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), that are transported, stored,
or used for maintenance, cleaning or repair, shall be managed according to RCRA and CERCLA.
Page 8 of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS (continued)
12. Sewer Extension
The department has approved the construction permit program to regulate and approve construction of sanitary
sewers which are tributary to this wastewater treatment plant. This approval may be modified or revoked by the
department prior to the sewage collection, transportation, or treatment facilities reaching their design limitations, if
the facility falls into chronic noncompliance with the permit, or if the permittee fails to follow the terms and
conditions of the submitted and approved program.
This permit may be reopened and modified or alternatively revoked and reissued to incorporate new or modified
conditions to the sewer construction permit authority, if information indicates changes are necessary to assure
compliance with Missouri's Clean Water Law and associated regulations.
When any of the above mentioned conditions occur, the permittee will be notified prior to any modification of this
permit condition.
Plans and specifications for all projects which include a proposed bypass must be submitted to the Department to
provide record information for location and size of the by-pass.
An annual report on the sewer extension program must be submitted by January 28 of each year to the Missouri
Department of Natural Resources St. Louis Regional Office. The report must list the name of the projects approved
and the length of sewers and force mains and the capacity of lift stations constructed under the sewer extension
program. A summary of total flow at the treatment facility shall be included. Detailed project information and data
including design flows and inspection records shall be available for review upon request.
13. An individual shall be designated by the permittee as responsible for environmental matters. A Stormwater
Pollution Prevention Plan shall be implemented. The plan shall be reviewed and updated as needed, and shall be
submitted with the application for operating permit renewal.
14. The permittee should continue to implement and refine a program that maximizes the capacity, management,
operation, and maintenance (CMOM) of the collection system to assure the system is operated in a way that
minimizes peak flows during wet weather events.
15. Permit -tee shall implement and enforce its approved pretreatment program in accordance with the requirements of 40
CFR Part 403. The approved pretreatment program is hereby incorporated by reference.
Permittee shall submit to the Department on or before September 30 of each year a report briefly describing its
pretreatment activities during the previous calendar year. At a minimum, the report shall include the following:
(a) An updated list of the Permittee's Industrial Users, including their names and addresses, or a list of deletions
and additions keyed to a previously submitted list. The Permittee shall provide a brief explanation of each
deletion. This list shall identify which Industrial Users are subject to categorical pretreatment Standards and
specify which Standards are applicable to each Industrial User. The list shall indicate which Industrial Users
are subject to local standards that are more stringent than the categorical Pretreatment Standards. The
Permittee shall also list the Industrial Users that are subject only to local Requirements;
(b) A summary of the status of Industrial User compliance over the reporting period;
(c) A summary of compliance and enforcement activities (including inspections) conducted by the Permittee
during the reporting period; and
(d) Any other relevant information requested by the Department.
16. As required in 40 CFR 122.21 (j)(4) the permittee shall, as part of its renewal application for this permit, submit to
the department a written technical evaluation of the need to revise local limits under 40 CFR 403.5 (c)(1).
Page 9 of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS (continued)
17. Whole Effluent Toxicity (WET) tests shall be conducted as follows:
SUMMARY OF WET TESTING FOR THIS PERMIT
OUTFALL
A.E.C. %
FREQUENCY
SAMPLE TYPE
MONTHS
#001
79.5
twice/year
24 hr composite
March &
September
(a) Test Schedule and Follow -Up Requirements
(1) Perform a MULTIPLE -dilution test in the months and at the frequency specified above. For tests which
are successfully passed, submit test results USING THE DEPARTMENT'S WET TEST REPORT
FORM #MO-780-1899 along with complete copies of the test reports as received from the laboratory,
including copies of chain -of -custody forms within 30 calendar days of availability to the WATER
PROTECTION PROGRAM, P.O. Box 176, Jefferson City, MO 65102. If the effluent passes the test,
do not repeat the test until the next test period.
(a) For discharges of stormwater, samples shall be collected within three hours from when discharge
first occurs.
(b) Samples submitted for analysis of stormwater discharges shall be collected as a grab.
(c) For discharges of non-stormwater, samples shall be collected only when precipitation has not
occurred for a period of forty-eight hours prior to sample collection. In no event shall sample
collection occur simultaneously with the occurrence of precipitation.
(d) A twenty-four hour composite sample shall be submitted for analysis of non-stormwater
discharges.
(e) Upstream receiving water samples, where required, shall be collected upstream from any
influence of the effluent where downstream flow is clearly evident.
(f) Samples submitted for analysis of upstream receiving water may be collected as either a grab or
twenty -four-hour composite as appropriate to the nature of the discharge.
(g) Chemical and physical analysis of the upstream control and effluent sample shall occur
immediately upon being received by the laboratory, prior to any manipulation of the effluent
sample beyond preservation methods consistent with federal guidelines for WET testing that are
required to stabilize the sample during shipping.
(h) Any and all chemical or physical analysis of the effluent sample performed in conjunction with
the WET test shall be performed at the 100% Effluent concentration in addition to analyses
performed upon any other effluent concentration.
(i) All chemical analyses included in the Missouri Department of Natural Resources WET test report
form #MO-780-I 899 shall be performed and results shall be recorded in the appropriate field of
the report form.
(j) Where flow -weighted composite sample is required for analysis, the samples shall be composited
at the laboratory where the test is to be performed.
(k) Where in stream testing is required downstream from the discharge, sample collection shall occur
immediately below the established Zone of Initial Dilution in conjunction with or immediately
following a release or discharge.
(I) Samples submitted for analysis of downstream receiving water may be collected as either a grab
or twenty -four-hour composite as appropriate to the nature of the discharge.
Page 10 of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS (continued)
(m) All instream samples, including downstream samples, shall be tested for toxicity at the 100%
concentration in addition to any other assigned AEC for in -stream samples.
(2) All failing test results along with complete copies of the test reports as received from the laboratory,
INCLUDING THOSE TESTS CONDUCTED UNDER CONDITION (3) BELOW, shall be reported to
the WATER PROTECTION PROGRAM, P.O. Box 176, Jefferson City, MO 65102 within 14 calendar
days of the availability of the results.
(3) If the effluent fails the test, a multiple dilution test shall be performed within 30 calendar days and
biweekly thereafter, until one of the following conditions are met:
(a) THREE CONSECUTIVE MULTIPLE -DILUTION TESTS PASS. No further tests need to be
performed until next regularly scheduled test period.
(b) A TOTAL OF THREE MULTIPLE -DILUTION TESTS FAIL.
(4) Failure of at least two multiple -dilution tests during any period of accelerated monitoring violates the
permit narrative requirement for aquatic life protection.
(5) The permittee shall submit a summary of all test results for the test series along with complete copies of
the test reports as received from the laboratory to the WATER PROTECTION PROGRAM, P.O. Box
176, Jefferson City, MO 65102 within 14 calendar days of the third failed test.
(6) Additionally, the following shall apply upon failure of the third MULTIPLE DILUTION test: A
toxicity identification evaluation (TIE) or toxicity reduction evaluation (TRE) is automatically
triggered. The permittee shall contact THE WATER PROTECTION PROGRAM within 14 calendar
days from availability of the test results to ascertain as to whether a TIE or TRE is appropriate. The
permittee shall submit a plan for conducting a TIE or TRE to the WATER PROTECTION PROGRAM
within 60 calendar days of the date of DNR's direction to perform either a TIE or TRE. This plan must
be approved by DNR before the TIE or TRE is begun. A schedule for completing the TIE or TRE shall
be established in the plan approval.
(7) Upon DNR's approval, the TIE/TRE schedule may be modified if toxicity is intermittent during the
TIE/TRE investigations. A revised WET test schedule may be established by DNR for this period.
(8) If a previously completed TIE has clearly identified the cause of toxicity, additional TIEs will not be
required as long as effluent characteristics remain essentially unchanged and the permittee is
proceeding according to a DNR approved schedule to complete a TRE and reduce toxicity. Regularly
scheduled WET testing as required in the permit, without the follow-up requirements, will be required
during this period.
(9) When WET test sampling is required to run over one DMR period, each DMR report shall contain A
COPY OF THE DEPARTMENT'S WET TEST REPORT FORM THAT WAS generated during the
reporting period.
(10) Submit a concise summary in tabular format of all WET test results with the annual report.
(b) PASS/FAIL procedure and effluent limitations:
(1) To pass a multiple -dilution test:
(a) FOR FACILITIES WITH A computed percent effluent at the edge of the zone of initial dilution,
Allowable Effluent Concentration (AEC), OF 30% OR LESS THE AEC must be less than
three -tenths (0.3) of the LC50 concentration for the most sensitive of the test organisms; OR,
Page 1 l of 13
Permit No. MO-0101362
C. SPECIAL CONDITIONS (continued)
(b) (FOR FACILITIES WITH AN AEC GREATER THAN 30% THE LC50 CONCENTRATION
MUST BE GREATER THAN 100%; AND,
(c) all EFFLUENT CONCENTRATIONS equal to or LESS THAN the AEC must be nontoxic.
MORTALITY OBSERVED IN ALL EFFLUENT CONCENTRATIONS EQUAL TO OR LESS
THAN THE AEC SHALL NOT BE SIGNIFICANTLY DIFFERENT (AT THE 95%
CONFIDENCE LEVEL; P = 0.05) THAN THAT OBSERVED IN THE UPSTREAM
RECEIVING -WATER CONTROL SAMPLE. WHERE UPSTREAM RECEIVING WATER IS
NOT AVAILABLE MORTALITY OBSERVED IN THE AEC TEST CONCENTRATION
SHALL NOT BE SIGNIFICANTLY DIFFERENT (AT THE 95% CONFIDENCE LEVEL; P =
0.05) THAN THAT OBSERVED IN THE LABORATORY CONTROL. THE APPROPRIATE
STATISTICAL TESTS OF SIGNIFICANCE SHALL BE CONSISTENT WITH THE MOST
CURRENT EDITION OF METHODS FOR MEASURING THE ACUTE TOXICITY OF
EFFLUENTS AND RECEIVING WATERS TO FRESHWATER AND MARINE ORGANISMS
OR OTHER FEDERAL GUIDELINES AS APPROPRIATE OR REQUIRED. FAILURE OF
ONE MULTIPLE -DILUTION TEST MAY BE CONSIDERED AN EFFLUENT LIMIT
VIOLATION.
(c) Test Conditions
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Test Type: Acute Static non -renewal
Test species: Ceriodaphnia dubia and Pimephales promelas (fathead minnow). Organisms used in WET
testing shall come from cultures reared for the purpose of conducting toxicity tests and cultured in a
manner consistent with the most current USEPA guidelines. All test animals shall be cultured as
described in the most current edition of Methods for Measuring the Acute Toxicity of Effluents and
Receiving Waters to Freshwater and Marine Organisms.
Test period: 48 hours at the "Acceptable Effluent Concentration" (AEC) specified above.
Upstream receiving stream water shall be used as dilution water. If upstream water is unavailable or if
mortality in the upstream water exceeds 10%, "reconstituted" water will be used as dilution water.
Procedures for generating reconstituted water will be supplied by the MDNR upon request.
Multiple -dilution tests will be run with:
(a) 100%, 50%, 25%, 12.5%, and 6.25% effluent, unless the AEC is less than 25% effluent, in which
case dilutions will be 4 times the AEC, two times the AEC, AEC, 1/2 AEC and 1/4 AEC;
(b) 100% receiving -stream water (if available), collected upstream of the outfall at a point beyond
any influence of the effluent; and
(c) reconstituted water.
If reconstituted -water control mortality for a test species exceeds 10%, the entire test will be rerun.
If upstream control mortality exceeds 10%, the entire test will be rerun using reconstituted water as the
dilutant.
Page 12 of 13
Permit No. MO-0101362
SUMMARY OF TEST METHODOLOGY FOR WHOLE -EFFLUENT TOXICITY TESTS
Whole -effluent -toxicity test required in NPDES permits shall use the following test conditions when performing single or multiple
dilution methods. Any future changes in methodology will be supplied to the permittee by the Missouri Department of Natural
Resources (MDNR). Unless more stringent methods are specified by the DNR, the procedures shall be consistent with the most
current edition of Methods for Measuring the Acute Toxicitv of Effluents and Receiving Waters to Freshwater and Marine Organisms,
Test conditions for Ceriodaphnia dubia:
Test duration:
Temperature:
Light Quality:
Photoperiod:
Size of test vessel:
Volume of test solution:
Age of test organisms:
No. of animals/test vessel:
No. of replicates/concentration:
No. of organisms/concentration:
Feeding regime:
Aeration:
Dilution water:
Endpoint:
Test acceptability criterion:
Test conditions for (Pimenhales promelas):
Test duration:
Temperature:
Light Quality:
Photoperiod:
Size of test vessel:
Volume of test solution:
Age of test organisms:
No. of animals/test vessel:
No. of replicates/concentration:
No. of organisms/concentration:
Feeding regime:
Aeration:
Dilution water:
Endpoint:
Test Acceptability criterion:
48 h
25 ± 1°C Temperatures shall not deviate by more than 3°C during
the test.
Ambient laboratory illumination
16 h light, 8 h dark
30 mL (minimum)
15 mL (minimum)
<24 h old
5
4
20 (minimum)
None (feed prior to test)
None
Upstream receiving water; if no upstream flow, synthetic water
modified to reflect effluent hardness.
Pass/Fail (Statistically significant Mortality when compared to
upstream receiving water control or synthetic control if upstream
water was not available at p< 0.05)
90% or greater survival in controls
48 h
25 ± 1°C Temperatures shall not deviate by more than 3°C during
the test.
Ambient laboratory illumination
16 h light/ 8 h dark
250 mL (minimum)
200 mL (minimum)
1-14 days (all same age)
10
4 (minimum) single dilution method
2 (minimum) multiple dilution method
40 (minimum) single dilution method
20 (minimum) multiple dilution method
None (feed prior to test)
None, unless DO concentration falls below 4.0 mg/L; rate should
not exceed 100 bubbles/min.
Upstream receiving water; if no upstream flow, synthetic water
modified to reflect effluent hardness.
Pass/Fail (Statistically significant Mortality when compared to
upstream receiving water control or synthetic control if upstream
water was not available at p< 0.05)
90% or greater survival in controls
Total Toxic Organics (Note 3)
Acenaphthene
Acrolein
Acrylonitrile
Benzene
Benzidine
Carbon Tetrachloride (tetrachloromethane)
Chiorobenzene
1,2,4-trichlorobenzene
Hexachlorobenzene
1,2-dichloroethane
1,1,1-trichloroethane
Hexachloroethane
1,1-dichloroethane
1,1,2-trichloroethane
1,1,2,2-tetrachloroethane
Chloroethane
Bis (2-chloroethyl) ether
2-chloroethyl vinyl ether
N-n itrosodi-n-propylamin e
Pentachlorophenol
Phenol
Bis (2-ethylhexyl) phthalate
Butyl benzyl phthalate
Di-n-butyl phthalate
Di-n-octyl phthalate
Diethyl phthalate
Dimethyl phthalate
1,2-benzanthracene (benzo(a)anthracene)
Benzo(a)pyrene (3,4-benzopyrene)
3,4-benzofluoranthene (benzo(b)fluoranthene)
1 1,12-benzofluoranthene (benzo(b)fluoranthene)
Chrysene
Anthracene
1,12-benzoperylene (benzo(ghi)perylene)
Fluorene
2-chloronaphthalene
2,4,6-trichlorophenol
Parachlorometa cresol
Chloroform (trichloromethane)
2-chlorophenol
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichorobenzene
3,3 -dich lorobenzidine
1,1-dichloroethylene
1,2-trans-dichloroethylene
2,4-dichlorophenol
1,2-dichloropropane (1,3-dichloropropane)
2,4-dimethylphenol
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Ethylbenzene
Fluoranthene
Page 13 of 13
Permit No. MO-0101362
4-chlorophenyl phenyl ether
4-bromophenyl phenyl ether
Bis (2-chloroisopropyl) ether
Bis (2-chloroethoxy) methane
Methylene Chloride (dichloromethane)
Methyl Chloride (chloromethane)
Methyl bromide (bromomethane)
Bromoform (tribromomethane)
D i ch l orobrom omethane
Chlorodibromemethane
Hexachlorobutadiene
Hexachlorocyclopentadiene
Isophorone
Naphthalene
Nitrobenzene
2-nitrophenol
4-nitrophenol
2,4-dinitrophenol
4,6-dintro-o-cresol
-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
1,2,5,6-dibenzanthracene (dibenzo(a,h)anthracene)
Indeno (1,2,3-cd) pyrene
(2,3-o-phenylene pyrene)
Pyrene
Tetrachloroethylene
Toluene
Trichloroethylene
Vinyl Chloride (chloroethylene)
Aldrin
Dieldrin
Chlordane (technical mixture and metabolites)
4,4-DDT
4,4-DDE (p,p-DDX)
4,4-DDD (p,p-TDE)
Alpha-endosulfan
Beta-endosulfan
Endosulfan sulfate
Endrin
Endrin aldehyde
Heptachlor
Heptachlor epoxide (BHC hexachlorocyclohexane)
Alpha-BHC
Beta-BHC
Gamma-BHC
Delta-BHC (PCB polychlorinated biphenyls)
PCB-1242 (Arochlor 1242)
PCB-1254 (Arochlor 1254)
PCB-1221 (Arochlor 1221)
PCB-1232 (Arochlor 1232)
PCB-1248 (Arochlor 1248)
PCB-1260 (Arochlor 1260)
PCB-1016 (Arochlor 1016)
Toxaphene
Date of Fact Sheet: March 3, 2006, Updated February 20, 2009.
Date of Public Notice: March 10, 2006
Date of Permit Modification February 27, 2009.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT
FACT SHEET
This Fact Sheet explains the applicable regulations, rationale for development of this permit and the public participation process.
NPDES PERMIT NUMBER: MO-0101362
FACILITY NAME: MSD-Grand Glaize Wastewater Treatment Facility
OWNER NAME: Metropolitan St. Louis Sewer District
LOCATION: Outfalls #001, #002 - Sec. 16, T44N, R5E, St. Louis County
Outfalls #003, #004 - Sec. 8, T44N, R5E, St. Louis County
Outfalls #005, #006 - Sec. 9, T44N, R5E, St. Louis County
RECEIVING STREAM: Outfall #001, #002 - Meramec River
Outfalls #003, #004, #005, #006 — Unnamed tributary to Grand Glaize Creek
FACILITY CONTACT PERSON: Todd Heller TELEPHONE: (314) 861-6701
FACILITY DESCRIPTION AND RATIONALE
The Metropolitan St. Louis Sewer District (MSD) operates a wastewater treatment facility serving a portion of western St. Louis
County under Missouri State Operating Permit MO-0101362 . MSD had applied for a construction permit to modify and expand the
treatment facility. The current state operating permit was renewed January 26, 2007. Construction of the upgrades was completed
Fall 2008. The operating permit is being modified on February 27, 2009. This modification had been placed on public notice on
March 10, 2006.
Note that the WQRS was revised on 8-18-06 which resulted in a change to cadmium limits, the same methodology and assumptions
were used and public noticed for the renewal of the permit. For this permit modification, final monthly average limits for cadmium
will be reduced from 1.1 mg/l to 0.9 mg/I. The revised WQRS is attached.
(The following was from the Public Notice of March 10, 2006)
The facility is considered an interim treatment facility and wastewater flow will eventually be diverted to a larger regional treatment
facility with discharge to the Mississippi River. The facility will be expanded in order to provide treatment to the ultimate dry weather
flow until the flow to the facility can be eliminated (based on elimination by year 2025). The facility will also be modified in order to
meet more stringent discharge limitations being imposed due to State and Federal water quality standards. Wet weather flows to the
facility are expected to increase when the collection sewer system is upgraded and bypassing in the collection system is reduced;
additional expansion of the facility will be done in the future to address the future wet weather flows. The upgraded facility will have
the ability to provide secondary treatment to a continuous flow of 21 MGD; and provide secondary treatment to a peak flow of 40
MGD. Flows exceeding 40 MGD will be stored in an existing three -cell lagoon with a storage capacity of approximately 23 million
gallons. Stored flow is returned to the facility for treatment. Flows exceeding the storage capacity of the lagoon are discharged
through outfall #002. The current annual average flow to the treatment facility is approximately 17 MGD. The treatment plant
currently receives domestic and pretreated industrial wastewater. The treated effluent is discharged into the Meramec River through
outfall #001. Outfall #002 is discharge from the three cell lagoon which occurs only during significant wet -weather events; #002 flow
enters the #001 outfall pipe which discharges to the Meramec River. Outfalls #001 and #002 are sampled separately prior to the flow
co -mingling. Outfalls #003, #004, #005, and #006 are stormwater outfalls from the treatment facility grounds and discharge to an
unnamed tributary of Grand Glaize Creek.
The modified facility will include coarse screening, an influent pump station, fine (6.25mm) screening, grit tanks, 4 circular primary
clarifiers, 5 activated sludge aeration tanks with fine bubble air diffusion, 6 circular final clarifiers, chlorination (liquid hypochlorite),
and dechlorination. Sludge handling will include 2 gravity thickeners, and 2 belt filter presses. Sludge is hauled from facility and
either incinerated, landfilled, land applied or composted. An activated carbon odor control system will be added to critical areas of the
facility.
Monitoring Requirements and effluent limitations were developed by the Water Pollution Control Program, see the attached Water
Quality Review Sheet, Dated 2-17-06. (revised 8-18-06).
This permit will be modified upon completion of construction.
Missouri Department of Natural Resources
Water Protection Program
Water Pollution Control Branch
NPDES PERMITS AND ENGINEERING SECTION
Water Quality Review Sheet
Determination of Effluent Limits
Facility Information
FACILITY NAME: MSD, Grand Glaize WWTF
NPDES MO-0101362
#:
FACILITY 16 MGD oxidation ditch facility with
TYPE /DEscRIPT ION: chlorination/dechlorination; sludge holding
with sludge incineration at the MSD, Lemay or Bissell
Point WWTP. Proposed
facility expansion to 21 MGD.
EDU: Ozark/Meramec Drainage
8-DIGIT
HOC:
0714010 COUNTY: St. Louis
2
LEGAL NW SW SW Sec. 16, LATITUDE/LONGITUDE: +3832588/-09028155
DESCRIPTION: T44N, R5E
WATER QUALITY HISTORY: Compliance with Carbonaceous Biochemical Oxygen Demand
(CBOD5) and Total
Suspended Solids (TSS) effluent limitations. Reasonable potential analyses
conducted for total ammonia nitrogen
and total recoverable metals (Cd, Cr, Cu, Pb, Hg, Ni, and Zn); results are
available upon request.
Outfall Characteristics
OUT FALL
DESIGN FLAW (CFS)
TREATMENT TYPE
RECEIVING WATERBODY
OTHER
001
32.55
Secondary (OXI D)
Meramec River
002
0.372
Equiv. Secondary)(3
LAG003
Meramec River
-
005
Variable
Stormwater (STO R)
Unnamed Tributary
of
Grand Glaize Creek
Receiving Waterbody Information
WATERBODY
CLASS
WBID
7Q10
(CFS)
1010
(CFS)
30Q10
(CFS)
*DESIGNATED USES
Meramec River
P
2183
336.5
322.2
371.8
AQL, LWW, WBC, BTG,
DWS, IND
*Cool Water Fishery (CLF), Cold Water Fishery (CDF), Irrigation (IRR), Industrial (IND), Boating & Canoeing (BTG), Drinking
Water Supply (DWS), Whole Body Contact Recreation (WBC), Protection of Warm water Aquatic Life and Human Health (AQL), Livestock
& Wildlife Watering (LWW)
COMMENTS: WQRS and associated water quality based effluent limits (WQBELs)
and monitoring requirements
developed to reflect results of reasonable potential analyses and
newly promulgated water quality
criteria (ammonia & metals) at the proposed facility expansion
design flow (21 MGD).
Mixing Considerations
Mixing Zone (MZ). One -quarter (1/4) of stream volume of flow; length of one -
quarter (1/4) mile [10 CSR 20-7.031 (4) (A) 4.B. (III) (a)] .
Zone of Initial Dilution (ZID). One -tenth (0.1) of the mixing zone volume of
flow [10 CSR 20-7.031(4) (A) 4.B. (III) (b)] .
Low -Flow Condition Volume of Flow: Available data from USGS-07019000 (Meramec River near Eureka, MO) were used to calculate 7Q10, IQ10, and 30Q10
low flow values for the Meramec River. Daily streamllow data from I/1/64 to 9/30/04 were used to generate annual 7-day, 1-day, and 30-day low -flow values
using the USGS SWSTAT 4.1 surface water statistics program. The resulting low -flows were fitted using the Log -Pearson Type 111 frequency distribution
(Appendix A). Mixing zone and zone of initial dilution flows were derived from the results ofthese analyses.
Flow
(cfs)
MZ (cfs)
ZID (cfs)
7Q10
336.5
84.1
8.4
410
322.2
80.6
8.1
30Q10
371.8
93.0
9.3
Applicable mixing zone regulation: 10 CSR 20-7.031(4)(A)4.B.(III)
Note: Future water quality reviews for this facility should include a CORMIX
mixing zone study to further refine the MZ and ZID dimensions.
(DesignFlow + ZIDF/ow I
I.F.C.% = x 100
DesignFlow
TMDL WATERSHED:
(Y oR N)
WET TEST (Y OR
N) :
Y
Permit Limits and Information
FREQUENCY:
W.L.A. STUDY
CONDUCTED:
(Y OR N}
DIsINFECTIoN REQUIRED:
(YORN)
OUTFALL ##001— Main Facility Outfall
TWICE/YEAR A.E.C. 79.5 LIMIT:
Y
USE ATTAINABILITY
ANALYSIS:
(Y oR N)
10 CSR 20-7.
031(3)(I)
PARAMETER
UNITSDAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MONITORING
FREQUENCX
FLow
MGD
*
*
ONCE/DAY
TEMPERATURE
°C
*
*
ONCE/WEEKDA
Y
BIOCHEMICAL OXYGEN DEMAND
(BOD5)***
MG/L
45
30
ONCE/WEEKDA
Y
TOTAL SUSPENDED SOLIDS***
MG/L
45
30
ONCE/WEEKDA
Y
PH
SU
6 - 9
6 - g
ONCE/WEEKDA
Y
FECAL COLT FORM
NOTE 1
1000
400
TW]CE/WEEK
TOTAL RESIDUAL CHLORINE
MG/L
0.024
0.012
ONCE/WEEKDA
Y
OUTFALL #001 (Cont)
PARAMETER
UNITS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MONITORING
FREQUENCY
TOTAL AMMONIA NITROGEN
(MAY - OCT)
MG/L
12. 6
6.3
TW]CEIWEEK
TOTAL AMMONIA NITROGEN
(NOV -APR)
MG/L
12.6
6.3
TWICE/WEEK
OIL & GREASE
MG/L
15
10
ONCE/WEEK
CADMIUM, TOTAL REC .
µG/L
2.2
0.9
ONCE/QUARTER
CHROMIUM, TOTAL REC.
µG/L
*
*
ONCE/QUARTER
COPPER, TOTAL REC.
µG/L
*
*
ONCE/QUARTER
LEAD, TOTAL REC .
µG/L
'2. 1
8.8
ONCE/QUARTER
MERCURY, TOTAL REC .
µG/L
1.2
0.8
ONCE/QUARTER
NICKEL, TOTAL REC.
µG/L
*
*
ONCE/QUARTER
ZINC, TOTAL REC.
µG/L
*
*
ONCE/QUARTER
TOTAL Toxic ORGANICS
µG/L
*
*
ONCE/YEAR
* - MONITORING REQUIREMENT ONLY, NOTE 1 - COLONIES/1 00 ML
*** - This facility is required to meet a removal efficiency of 85% or more for BOD5 and
TSS. Influent BOD5 and TSS data should be reported to ensure removal efficiency
requirements are met.
OUTFALL #002 - Wet Weather Overflow
WET TEST (Y OR
N) :
FREQUENCY:
N/A
A.E.C.
N/A LIMIT: N/A
PARAMETER
UNITS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MONITORING
FREQUENCY
FLOW
MGD
*
r
*
NOTE 2
BIOCHEMICAL OXYGEN
DEMAND (BOD5)***
MG/L
45
NOTE 2
TOTAL SUSPENDED SOLIDS***
MG/L
45
NOTE 2
PH
SU
6-
9
6-
9
NOTE 2
FECAL COL IFORM
NOTE 1
*
*
NOTE 2
TOTAL AMMONIA NITROGEN
MG/L
*
*
NOTE 2
TEMPERATURE
°C
*
*
NOTE 2
* - MONITORING REQUIREMENT ONLY, NOTE 1 - COLONIES/100 ML, NOTE 2 - ONCE/DISCHARGE/DAY
*** - This facility is required to meet a removal efficiency of 65% or more for BOD5 and
TSS. Influent BOD5 and TSS data should be reported to ensure removal efficiency
requirements are met.
OUTFALL #003, #004, #005, #006 - Stormwater
WET TEST (Y CR
N).
I-;1;-1
FREQUENCY:
N/A
A.E.C.
N/A LIMIT: N/A
PARAMETER
UNITS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MONITORING
FREQUENCY
FLOW
MGD
*
*
ONCE/QUART
ER
RAINFALL
INCHES
*
*
ONCE/QUART
ER
OUTFALL #003, #004, #005, #006 (Cont.)
PARAMETER
UNITS
DAILY
MAXIMUM
WEEKLY
AVERAGE
MONTHLY
AVERAGE
MONITORING
FREQUENCY
BIOCHEMICAL OXYGEN
DEMAND (BOD5)
MG a
*
*
ONCEQART
/ D
ER
SETTLEABLE SOLIDS
ML/L/H
R
1 . 5
1 . O
ONCE/QUART
ER
PH
SU
6 - 9
6 - 9
ONCE/QUART
ER
OIL & GREASE
MG/L
15
10
ONCE/QUART
ER
FECAL COLIFORM
NOTE 1
*
*
ONCE/QUART
ER
* - MONITORING REQUIREMENT ONLY, NOTE 1 - COLONIES/100 ML
Receiving Water Monitoring Requirements
No receiving water monitoring requirements recommended at this time.
Derivation and Discussion of Limits
Wasteload allocations were calculated using water quality criteria or water
quality model results and the dilution equation below:
C_ (Cs x Qs)+ (Ce x Qe)
(Qe + Qs)
Where
(EPA/505/2-90-001, Section 4.5.5)
C = downstream concentration
Cs = upstream concentration
Qs = upstream flow
Ce = effluent concentration
Qe = effluent flow
Chronic wasteload allocations were determined using applicable chronic water
quality criteria (CCC: criteria continuous concentration) and stream volume of
flow at the edge of the mixing zone (MZ). Acute wasteload allocations were
determined using applicable water quality criteria (CMC: criteria maximum
concentration) and stream volume of f ow at the edge of the zone of initial
dilution (ZID).
Water quality based maximum daily and average monthly effluent limitations were
calculated using methods and procedures outlined in USEPA's "Technical Support
Document For Water Quality -based Toxics Control" (EPA/505/2-90-001).
Outfall #001 — Main Facility Outfall
• Biochemical Oxygen Demand (BOD5). 30 mg/L monthly average, 45 mg/L weekly
average [10 CSR 20-7.015(8)(B)1.] MSD may petition and submit data to the
department to obtain CBOD5 effluent limitations of 25 mg/L monthly average, 40
mg/L weekly average per 10 CSR 20-7.015
(8) (B) 6.
• Total Suspended Solids (TSS). 30 mg/L monthly average, 45 mg/L weekly average
[10 CSR 20-7.015(8) (B)1.]
• pH shall be maintained in the range from six to nine (6 - 9) standard units
[10 CSR 20-7.015
(8) (B) 2.]
• Fecal Coliform. Discharge shall not contain more than a monthly geometric mean
of 400 colonies/ 100 mL, daily maximum of 1000 colonies/100 mL during the
recreational season (April 1 - October 31) [10 CSR 20-7.015(8)(B)4.A.] Future
renewals of the facility operating permit will contain effluent limitations for
E. coli which will replace fecal coliform as the applicable bacteria criteria.
Total Residual Chlorine (TRC). Warm -water Protection of Aquatic Life CCC = 10
µg/L, CMC = 19 µg/L [10 CSR 20-7.031, Table A]. Background TRC = 0.0 µg/L
Chronic WLA: Ce = ((32.55 + 84.1) 0 - (84.1* 0.0))/32.55
Ce = 35.8 µg/L
Acute WLA: Co = ((32.55 + 8.4)19 - (8.4 * 0.0))/32.55
Co = 23.9 µg/L
LTA, = 35.8 µg /L (0.527) = 18.9 µg/L [CV = 0.6, 99th Percentile]
LTAa = 23.9 µg/L (0.321) = 7.7 µg/L [CV = 0.6, 99" Percentile]
MDL = 7.7 µg/L * 3.11 = 23.9 µg/L [CV = 0.6, 99" Percentile]
AML = 7.7 µg/L * 1.55 = 11.9 µg/L CV = 0.6, 95th Percentile,
n = 4]
Total Residual Chlorine effluent limits of 0.024 mg/L daily maximum, 0.012 mg/L
monthly average are recommended if chlorine is used as a disinfectant.
Standard compliance language for TRC, including the minimum level (ML), should
be included in the permit.
" T o t a l A m m o n i a N i t r o g e n . R e s u l t s f r o m t h e r e a s o n a b l e p o t e n t i a l a n a l y s i s i n d i c a t e
r e a s o n a b l e p o t e n t i a l e x i s t s f o r t h e R E D , G r a n d G l a i z e W W T F t o c a u s e e x c u r s i o n s
a b o v e a p p l i c a b l e a m m o n i a w a t e r q u a l i t y c r i t e r i a i n t h e R i e r a m e c R i v e r ;
t h e r e f o r e , e f f l u e n t l i m i t a t i o n s h a v e b e e n c a l c u l a t e d .
E a r l y L i f e S t a g e s P r e s e n t T o t a l A m m o n i a N i t r o g e n c r i t e r i a a p p l y [ 1 0 C S R 2 0 -
7 . 0 3 1 ( 4 ) ( B ) 7 . C . & T a b l e B 3 ] . S e a s o n a l t e m p e r a t u r e a n d p H o b t a i n e d u s i n g w a t e r
q u a l i t y d a t a f r o m U S G S - 0 7 0 1 9 0 0 0 ( M e r a m e c R i v e r n e a r E u r e k a , R V ) ; b a c k g r o u n d
t o t a l a m m o n i a n i t r o g e n = 0 . 0 3 m g / L .
S e a s o n
m p
( � C P
p H ( S U )
T o t a l A m m o n i a
N i t r o g e n
C C C ( m g N / L )
T o t a l A m m o n i a
N i t r o g e n
C M C ( m g N / L )
S u m m e r
2 3 . 4
7 . 9
1 . 5 8
1 0 . 1
W i n t e r
6 . 1
7 . 9
2 . 8 0
1 0 . 1
S u m m e r : M a y 1 - O c t o b e r 3 1 , W i n t e r : N o v e m b e r 1 - A p r i l 3 0
S u m m e r
C h r o n i c W L A : C e = ( ( 3 2 . 5 5 + 9 3 . 0 ) 1 . 5 8 - ( 9 3 . 0 * 0 . 0 3 ) ) / 3 2 . 5 5
C e = 6 . 0 1 m g / L
A c u t e W L A : C e = ( ( 3 2 . 5 5 + 8 . 1 ) 1 0 . 1 - ( 8 . 1 * 0 . 0 3 ) ) / 3 2 . 5 5
C e = 1 2 . 6 m g / L
L T A , = 6 . 0 1 m g / L ( 0 . 7 8 0 ) = 4 . 6 9 m g / L [ C V = 0 . 6 , 9 9 " P e r c e n t i l e ,
n = 3 0 ]
L T A d = 1 2 . 6 m g / L ( 0 . 3 2 1 ) = 4 . 0 4 m g / L [ C V = 0 . 6 , 9 9 t h P e r c e n t i l e ]
M D L = 4 . 0 4 m g / L * 3 . 1 1 = 1 2 . 6 m g / L [ C V = 0 . 6 , 9 9 t h P e r c e n t i l e ]
A M L = 4 . 0 4 m g / L * 1 . 5 5 = 6 . 3 m g / L [ C V = 0 . 6 , 9 5 t h P e r c e n t i l e , n =
4 ]
W i n t e r
C h r o n i c W L A : C e = ( ( 3 2 . 5 5 + 9 3 . 0 ) 2 . 8 0 - ( 9 3 . 0 * 0 . 0 3 ) ) / 3 2 . 5 5
C e = 1 0 . 7 m g / L
A c u t e W L A : C e = ( ( 3 2 . 5 5 + 8 . 1 ) 1 0 . 1 - ( 8 . 1 * 0 . 0 3 ) ) / 3 2 . 5 5
C e = 1 2 . 6 m g / L
L T A , = 1 0 . 7 m g / L ( 0 . 7 8 0 ) = 8 . 3 5 m g / L [ C V = 0 . 6 , 9 9 ` h P e r c e n t i l e ,
n = 3 0 ]
L T A a = 1 2 . 6 m g / L ( 0 . 3 2 1 ) = 4 . 0 4 m g / L
M D L = 4 . 0 4 m g / L * 3 . 1 1 = 1 2 . 6 m g / L
A M L = 4 . 0 4 m g / L * 1 . 5 5 = 6 . 3 m g / L
4 ]
[ C V = 0 . 6 , 9 9 t h P e r c e n t i l e ]
[ C V = 0 . 6 , 9 9 " P e r c e n t i l e ]
[ C V = 0 . 6 , 9 5 t h P e r c e n t i l e , n =
M a x i m u m D a i l y L i m i t ( m g
A v e r a g e M o n t h l y L i m i t
S e a s o n
N / L )
( m g N / L )
S u m m e r
1 2 . 6
6 . 3
W i n t e r
1 2 . 6
6 . 3
" O i l & G r e a s e . C o n v e n t i o n a l p o l l u t a n t , e f f l u e n t l i m i t a t i o n f o r p r o t e c t i o n o f
a q u a t i c l i f e ; 1 0 m g / L m o n t h l y a v e r a g e , 1 5 m g / L d a i l y m a x i m u m .
" M e t a l s . E f f l u e n t l i m i t a t i o n s f o r s o m e t o t a l r e c o v e r a b l e m e t a l s ( C r , C u , N i , a n d
Z n ) w i l l b e r e m o v e d a n d r e p l a c e d w i t h m o n i t o r i n g o n l y r e q u i r e m e n t s a s a r e s u l t
o f t h e r e a s o n a b l e p o t e n t i a l a n a l y s e s . E f f l u e n t l i m i t a t i o n s f o r t o t a l
r e c o v e r a b l e c a d m i u m , l e a d , a n d m e r c u r y w i l l b e r e t a i n e d a n d r e c a l c u l a t e d u s i n g
u p d a t e d M Z , Z I D , a n d o u t f a l l s p e c i f i c s t a t i s t i c a l m u l t i p l i e r s .
M E T A L
C M C
( V G / L )
C C C
( � G / L )
R E C E I V I N G W A T E R C O N C E N T R A T I O N
A C U T E / C H R O N I C ( 1 A G / L )
R E A S O N A B L E
P O T E N T I A L
C a d m i u m
7 . 1
0 . 3
2 2 . 8 / 8 . 3
Y e s
C h r o m i u m
7 9 4
1 0 0 ( D W S )
7 2 . 2 / 2 5 . 8
N o
C o p p e r
2 0
1 0
1 5 . 3 / 7 . 6
N o
L e a d
1 0 0
4
1 9 . 0 / 8 . 0
Y e s
M e r c u r y
2 . 4
0 . 5
1 . 3 / 0 . 5
Y e s
N i c k e l
6 6 0
7 3 _
3 4 . 1 / 1 2 . 9
N o
Z i n c
1 6 5
1 5 1
1 1 3 . 7 / 4 8 . 3
N o
E f f l u e n t l i m i t a t i o n s f o r t o t a l r e c o v e r a b l e m e t a l s w e r e d e v e l o p e d u s i n g m e t h o d s a n d p r o c e d u r e s o u t l i n e d i n
E P A / 5 0 5 / 2 - 9 0 - 0 0 1 a n d " T h e M e t a l s T r a n s l a t o r : G u i d a n c e F o r C a l c u l a t i n g A T o t a l R e c o v e r a b l e P e r m i t L i m i t
F r o m A D i s s o l v e d C r i t e r i o n " ( E P A 8 2 3 - 8 - 9 6 - 0 0 7 ) . P r o t e c t i o n o f a q u a t i c l i f e c r i t e r i a a p p l y a n d w a t e r
h a r d n e s s = 1 5 0 m g / L .
D u e t o t h e a b s e n c e o f c o n t e m p o r a n e o u s e f f l u e n t a n d i n - s t r e a m d a t a f o r t o t a l
r e c o v e r a b l e m e t a l s , d i s s o l v e d m e t a l s , h a r d n e s s , a n d t o t a l s u s p e n d e d s o l i d s w i t h
w h i c h t o c a l c u l a t e m e t a l s t r a n s l a t o r s , p a r t i t i o n i n g b e t w e e n t h e d i s s o l v e d a n d
a b s o r b e d p h a s e s w a s a s s u m e d t o b e m i n i m a l ( S e c t i o n 5 . 7 . 3 , E P A / 5 0 5 / 2 - 9 0 - 0 0 1 ) .
F r e s h w a t e r c r i t e r i a c o n v e r s i o n f a c t o r s f o r d i s s o l v e d m e t a l s w e r e u s e d a s t h e
m e t a l s t r a n s l a t o r a s r e c o m m e n d e d i n g u i d a n c e ( S e c t i o n 1 . 3 , 1 . 5 . 3 , a n d T a b l e 1 ,
E P A 8 2 3 - B - 9 6 - 0 0 7 ) . I f c o n c u r r e n t s i t e - s p e c i f i c d a t a f o r t o t a l r e c o v e r a b l e
m e t a l s , d i s s o l v e d m e t a l s , h a r d n e s s , a n d t o t a l s u s p e n d e d s o l i d s a r e p r o v i d e d t o
t h e d e p a r t m e n t , p a r t i t i o n i n g e v a l u a t i o n s m a y b e c o n s i d e r e d a n d s i t e - s p e c i f i c
t r a n s l a t o r s d e v e l o p e d .
M E T A L
C O N V E R S I O N
F A C T O R S
W Q B E L
A C U T E
C H R O N I C
C a d m i u m '
0 . 9 2 7
0 . 8 9 2
Y e s
L e a d '
0 . 7 3 2
0 . 7 3 2
Y e s
M e r c u r y
0 . 8 5
N / A
Y e s
C o n v e r s i o n f a c t o r s f o r C d a n d P b a r e h a r d n e s s d e p e n d e n t . V a l u e s c a l c u l a t e d u s i n g e q u a t i o n
f o u n d i n S e c t i o n 1 . 3 o f E P A 8 2 3 - B - 9 6 - 0 0 7 a n d h a r d n e s s = 1 5 0 m g / L .
C a d m i u m ( C d ) : P r o t e c t i o n o f A q u a t i c L i f e C C C = 0 . 3 g g / L , C M C = 7 . 1 � g / L [ 1 0 C S R
2 0 - 7 . 0 3 1 , T a b l e A ] ; B a c k g r o u n d C d = 0 . 0 m g / L
C ( C h r o n i c ) = C C C / C F = 0 . 3 / 0 . 8 9 2 = 0 . 3 3 6 i g / L
C ( A c u t e ) = C M C / C F = 7 . 1 / 0 . 9 2 7 = 7 . 6 6 � g / L
C h r o n i c W L A : C e = ( ( 3 2 . 5 5 I - 8 4 . 1 ) 0 . 3 3 6 - ( 8 4 . 1 * 0 . 0 ) ) / 3 2 . 5 5
Ce = 1.20 µg/L
Acute WLA: C, _ ((32.55 + 8.4)7.66 - (8.4 * 0.0))/32.55
Ce = 9.64 µg/L
LTA, = 1.20 µg/L (0.373) = 0.45 µg/L [CV = 1.0, 99" Percentile]
LTAa = 9.64 µg/L (0.204) = 1.97 µg/L [CV = 1.0, 99th Percentile]
MDL = 0.45 µg/L * 4.90 = 2.2 µg/L [CV = 1.0, 99th Percentile]
AML = 0.45 µg/L * 1.95 = 0.9 µg/L [CV = 1.0, 95" Percentile,
n = 4]
Lead (Pb): Protection of Aquatic Life CCC = 4 µg/L, CMC = 100 µg/L [10 CSR 20-
7.031, Table A]; Background Pb = 2.1 µg/L
C (Chronic) = CCC/CF = 4/0.732 = 5.46 µg/L
C (Acute) = CMC/CF = 100/0.732 = 137 µg/L
C (Background) = 2.1/0.732 = 2.9 µg/L
Chronic WLA: Ce = ((32.55 + 84.1)5.46 - (84.1* 2.9))/32.55
Ce = 12.1 µg/L
Acute WLA: Ce = ((32.55 + 8.4) 137 - (8.4 * 2.9))/32.55
Ce = 172 µg/L
LTA, = 12.1 µg/L (0.373) = 4.51 µg/L [CV = 1.0, 99`t" Percentile]
LTAa = 172 µg/L (0.204) = 35.1 µg/L [ CV = 1.0, 99th Percentile]
MDL = 4.51 µg/L * 4.90 = 22.1 µg/L [ CV = 1.0, 99th Percentile]
AML = 4.51 µg/L * 1.95 = 8.8 µg/L [CV = 1.0, 95`h Percentile,
n = 4)
Mercury (Hg): Protection of Aquatic Life CCC = 0.5 µg/L, CMC = 2.4
20-7.031, Table A]; Background Hg = 0.1 µg/L
C (Chronic) = CCC = 0.5 µg/L
C (Acute) = CMC/CF = 2.4/0.85 = 2.8 µg/L
Chronic WLA: Ce = ((32.55 + 84.1)0.5 - (84.1* 0.1))/32.55
Ce = 1.53 µg/L
Acute WLA: Ce = ((32.55 + 8.4)2.8 - (8.4 * 0.1))/32.55
Ce = 3.50 pg/L
LTA, = 1.53 µg/L (0.421) = 0.64 µg/L
Percentile]
LTAa = 3.50 µg/L (0.236) = 0.83 µg/L
Percentile]
[ CV = 0.85, 99"
[ CV = 0.85, 99th
µ.g/L
[
10 CSR
MDL = 0.64 µg/L * 4.23 = 2.7 µg/L
Percentile]
AML = 0.64 µg/L * 1.80 = 1.2 µg/L
Percentile, n = 4]
[ CV = 0.85, 99th
[ CV = 0.85, 95th
Calculated WQBELs are greater than those found in the most recent facility
state operating permit. In consideration of antibacksliding requirements, the
existing effluent limitations of 1.2 µg/L maximum daily and 0.8 µg/L average
monthly should be retained.
Metal
Maximum Daily Limit
(µg/L)
Average Monthly Limit
(µg/L)
Cadmium
2.2
0.9
Lead
22.1
8.8
Mercury
1.2
0.8
Outfall #002 — Wet Weather Overflow
• Biochemical Oxygen Demand (BOD5). 45 mg/L weekly average [10 CSR 20-
7.015 (8) (B) 3.E. (I)] .
• Total Suspended Solids (TSS). 45 mg/L weekly average [10 CSR 20-
7.015(8) (B) 3.E. (I)] .
• 0. pH shall be maintained in the range from six to nine (6 - 9) standard units
[10 CSR 20-7.015 (8) (B) 3.E. (II)] .
• Fecal Coliform. Monitoring only requirement.
• Total Ammonia Nitrogen. Monitoring only requirement.
• Temperature. Monitoring only requirement.
Outfall #003, #004, #005, #006 - Stormwater
Effluent limitations and monitoring requirements from the previous Missouri State Operating Permit have been retained.
A Stormwater Pollution Prevention Plan (SWPPP) similar to that submitted for the MSD, Coldwater Creek facility must
be submitted to the department for review and approval. Upon renewal of the next operating permit, the department will
determine the effectiveness of the SWPPP by evaluating the data collected and reduce the frequency or need for the
retained effluent limits and monitoring requirements as necessary.
Reviewer: John Hoke
Date: February 17, 2006
Revised: August 18, 2006
Unit Chief: Refaat Mefrakis
Monitoring and effluent limits contained within this document have been developed in
accordance with EPA guidelines using the best available data and are believed to be
consistent with Missouri's Water Quality Standards and Effluent Regulations. If
additional water quality data or anecdotal information are available that may affect
Appendix A.
Log -Pearson Type III Statistics
SWSTAT 4.1
(based on USGS Program A193)
Notice Use of Log -Pearson Type III or Pearson -Type III
distributions are for preliminary computations.
User is responsible for assessment and
interpretation.
USGS-07019000
April 1
March 31
1964 - 2004
7-day low
31
304.429
504.714
630.429
307.143
510.571
715.000
519.571
0
10
Meramec River near Eureka, MO
- start of season
- end of season
- time period
- parameter
- non -zero values
- zero values
- negative values (ignored)
315.714
602.857
591.000
464.143
519.714
521.571
305.429
624.143
613.143
340.000
841.714
383.429
The following 7 statistics are based on
Mean (logs)
Variance (logs)
Standard Deviation (logs)
Skewness (logs)
Standard Error of Skewness (logs)
Serial Correlation Coefficient (logs)
Coefficient of Variation (logs)
Non-exceedance Recurrence
Probability Interval
0.0100
0.0200
0.0500
0.1000
0.2000
0.3333
0.5000
0.8000
0.9000
0.9600
0.9800
0.9900
Appendix A (cont.)
100.00
50.00
20.00
10.00
5.00
3.00
2.00
1.25
1.11
1.04
1.02
1.01
364.286 392.286
453.000 522.571
318.286 490.143
695.714 768.714
602.714 637.000
471.286 664.143
non -zero
values:
2.695
0.016
0.128
-0.286
0.421
0.428
0.048
Parameter
Value
234.278
258.305
297.796
336.517
388.186
440.784
502.302
637.155
715.948
806.129
867.669
925.147
Log -Pearson Type III Statistics
SWSTAT 4.1
(based on USGS Program A193)
Notice Use of Log -Pearson Type I1I or Pearson -Type III
distributions are for preliminary computations.
User is responsible for assessment and
interpretation.
USGS-07019000 Meramec River near Eureka, MO
April 1 - start of season
March 31 - end of season
1964 - 2004 - time period
1-day low - parameter
31 - non -zero values
0 - zero values
10 - negative values (ignored)
292.000
492.000
601.000
290.000
495.000
702.000
495.000
312.000
567.000
580.000
457.000
479.000
516.000
285.000
572.000
595.000
326.000
833.000
368.000
352.000 370.000
439.000 486.000
313.000 446.000
654.000 723.000
584.000 614.000
449.000 658.000
The following 7 statistics are based on non -zero values:
Mean (logs)
Variance (logs)
Standard Deviation (logs)
Skewness (logs)
Standard Error of Skewness (logs)
Serial Correlation Coefficient (logs)
Coefficient of Variation (logs)
2.677
0.017
0.129
-0.240
0.421
0.429
0.048
Non-exceedance Recurrence Parameter
Probability Interval Value
0.0100
0.0200
0.0500
0.1000
0.2000
0.3333
0.5000
0.8000
0.9000
0.9600
0.9800
0.9900
Appendix A (cont.)
Notice
100.00
50.00
20.00
10.00
5.00
3.00
2.00
1.25
1.11
1.04
1.02
1.01
225.749
248.365
285.603
322.216
371.267
421.473
480.524
611.551
689.163
779.011
840.977
899.347
Log -Pearson Type III Statistics
SWSTAT 4.1
(based on USGS Program A193)
Use of Log -Pearson Type III or Pearson -Type III
distributions are for preliminary computations.
User is responsible for assessment and
interpretation.
USGS-07019000 Meramec River near Eureka, MO
April 1 - start of season
March 31 - end of season
1964 - 2004 - time period
30-day low - parameter
31 - non -zero values
0 - zero values
10 - negative values (ignored)
326.400
609.467
908.533
369.500
546.133
983.567
567.967
345.967
659.000
665.300
501.133
569.300
532.867
377.100
748.400
772.067
374.000
905.267
426.667
388.333 460.167
484.733 590.500
337.900 622.433
811.833 1004.600
702.067 725.933
523.200 751.567
The following 7 statistics are based on non -zero values:
Mean (logs)
Variance (logs)
Standard Deviation (logs)
Skewness (logs)
Standard Error of Skewness (logs)
Serial Correlation Coefficient (logs)
Coefficient of Variation (logs)
2.755
0.021
0.144
-0.063
0.421
0.321
0.052
Non-exceedance Recurrence Parameter
Probability Interval Value
0.0100 100.00
0.0200 50.00
0.0500 20.00
0.1000 10.00
0.2000 5.00
0.3333 3.00
0.5000 2.00
0.8000 1.25
0.9000 1.11
0.9600 1.04
0.9800 1.02
0.9900 1.01
259.756
285.450
328.508
371.815
431.432
494.519
571.248
752.683
867.729
1008.383
1110.263
1210.028