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HomeMy Public PortalAboutP003055600_3/27/2024 10:08:18 AM1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn 1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn 1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn 1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn 1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn 1� L 0 Y E T Landscape Maintenance Loyet Landscape. LLC 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt POST CONSTRUCTION STORMWATER BMP INSPECTION REPORT Inspection Date: Reporting Year: MSD Project Number: Project Name: Address of RMP: 11/17/2023 2023 P-0030556-00 Millipore Sigma -Laclede Ave 9Qn9 I arlorlo Avonue, qt.I ni iic Mn 6.'21.01 Owner Change Since Last Inspection? No Property Owner: Property Owner's Address: Inspector's Name: Inspector's Email: Sigma -Aldrich Corporation 3050 Spruce Street St Louis, MO 63103 Jerry Brandt Property Owner's Agent: J Brandt OwnerlAgent Email: JBrandt@LoyetLandscape.com Inspector's Phone: (636) 487-2799 JBrandt@LoyetLandscape.com Conditions During Inspection: Sunny INSPECTOR'S OBSERVATION SUMMARY According to MSD records, construction approval for the Millipore Sigma Laclede Campus stormwater treatment system improvements was granted on November 8, 2017 and consists of three biodentention basins. one pretreatment forebay, a permeable concrete paver patio along with associated private inlets, piping, underdrains, manholes and structures. The fourth 2023 inspection was performed the morning of November 17, 2023. Stewardship was performed on May 22nd, July 14th, August 28th, September 29th and October 24th. After carefully reviewing each component of the DeKalb Campus stormwater treatment system this day, I'm confident confirming: based on what was observed, this stormwater treatment sytem appears to be functioning in accordance with its design intent. STORMWATER BEST MANAGEMENT PRACTICE (BMP) - SITE COMPONENT SUMMARY SURFACE COMPONENTS BMP TYPE Biodetention / Rain Garden Permeable Pavement Pre -Treatment NUMBER ON SITE 3 0 0 !Total civic Curripunerri 011 Site 3 Loyet Landscape. LLC 1� L 0 Y E T L an dsc a pe Maintenance 261 Hughes Lane St. Charles, MO 63301 (636) 487-4799 Jerry Brandt BIORETENTION /RAIN GARDEN (Laclede Campus South Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Assessment and Actions Performance Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory Color NOTE TO INSPECTORS: �:,�nnel ent�..:,y �, , ,'fined spaces must take appropriate safety measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin Site Well Stabilized INSPECTION ITEMS RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via grass and rock swale connections to curb cuts on conventional parking surfaces. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, Water Stains, Algae? 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody vegetation? 0 No overgrown invasive or woody vegetation present. Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well constructed filter media of proper D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet D.E-1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? — 0 None present E. HAZARDS Complaints from local residents? (describe if any) 0 None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN Laclede Campus Center Biodetention Basin INSPECTION RATING SYSTEM Conditon 0 1 2 3 Assessment and Actions Performance Color Good Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: All personnel entering any confined spaces must take appropriate safPfv measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede South Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb cut. No debris present Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted B. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors. Water 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, woody 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via underdrain to grate L -C.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs. with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. BIORETENTION / RAIN GARDEN (Laclede Campus North Biodetention Basin) INSPECTION RATING SYSTEM Conditon 0 1 2 Lib Assessment and Actions Performance Color 3ood Moderate Degraded Serious Well maintained, no action required Should monitor Routine maintenance and repair needed Immediate need for repair or replacement Satisfactory Satisfactory Unsatisfactory Unsatisfactory NOTE TO INSPECTORS: Ail personnel entering any confined spaces must take appropriate sc measures and follow applicable OSHA regulations. OVERALL DRAINAGE AREA CONDITIONS Laclede North Biodetention Basin INSPECTION ITEMS Site Well Stabilized RATING COMMENTS A. INLETS (if not piped, identify as overland flow) Provide stable conveyance into facility? 0 overland Flow via rock swale to curb Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Evidence of erosion? 0 None noted 6. PRETREATMENT (if applicable) Excessive trash/debris/sediment accumulation? NA Evidence of standing water (Ponding, Noticable Odors, NA Evidence of clogging? NA Dead vegetation/exposed soil? NA Evidence of erosion? NA C. TREATMENT AREA AND VEGETATION Excessive trash/debris/sediment accumulation? 0 Site generally well maintained Signs of erosion or movement of mulch (or pea gravel)? 0 No evidence of erosion in this Basin Evidence of oil/chemical accumulation? 0 None present Evidence of standing water (Ponding, Noticable Odors, 0 None noted Underdrain system (if equipped) broken/clogged? 0 Clear / working Adequate plant covering present? 0 Native plants are well established Is vegetation overgrown? Invasive, overgrown weeds, 0 No overgrown invasive or woody Dead vegetation/exposed soil? 0 None present this day Signs of mulch layer thinning (or pea gravel) 0 Mulch layer appears adequate Condition of filter media 0 Multiple soil probes confirmed well D. OVERFLOW/OUTLET STRUCTURE Stable conveyance out of facility provided? 0 Via Area Inlet L -N.1 Excessive trash/debris/sediment accumulation? 0 Clear/working Evidence of erosion at/around? 0 None present E. HAZARDS Complaints from local residents? (describe if any) None of which I'm aware Any public hazards observed? (describe if any) 0 None noted F. CORRECTIVE ACTIONS* * If any 2 - 3 ratings are given in Sections A -E of this checklist, list corrective actions recommented or completed during inspection. NAME DATE IDENTIFIED CORRECTIVE ACTION N/A G. PHOTOGRAPHS Please attach photographs, with descriptions, showing current condition of the system and any deficiencies noted in this inscpection. Millipore Sigma - Laclede BM P Inspection Photos 11/17/23 comments: MulOple sotl probe sarfl)les confirm we constructed !1. e' media of the prope1 clepth within all of the Biocletenuon Basins. This soil probe •Has cotlectecl horn the South Biodetent1on Bas n . .. Comments: Looking north acmss the cemer BIOdetenc,on Basin Comments: view into Grate Inlet L-S.J . "­Comments: v,:e1·., rito G•ai � ,nlet L·C l VVIIOIg1IW. rNICJ 4„V DC1.1N,1DIVLaICV •IV'.1'1 Vl 1 IC basin Comments: View into Area Inlet LA 1 w run Noah Bicaatenuon Basin Comments: _oolano across the North Btottetentton Bastn Comments: Inlet east cr the North Btodetenttcn eastn