A02 PWS Attachment A - Required Maintenance.xls
XLS spreadsheet 101 KB Posted
- Solicitation number
- W91QV127PA997
About this file
This is a Performance Work Statement (PWS) attachment detailing required maintenance for stormwater management facilities (SMFs) at Fort Myer and Fort McNair. The document provides a comprehensive inventory of 58 stormwater management facilities across both installations, including bioretention areas, permeable pavement systems, sand filters, detention basins, and specialized filtration units such as Filterra systems and BaySaver Technologies BaySeparator Systems.
The required maintenance encompasses both routine and inspection-based activities tailored to each facility type. Routine maintenance for bioretention and rain garden facilities includes removing debris, dead vegetation, sediment, and obstructions; replanting vegetation per design specifications; re-mulching annually; mowing and removing weeds; and notifying Environmental Management Division (EMD) of any contamination signs. Permeable pavement systems require vacuuming during dry weather, pea gravel replacement, sediment removal, and structural repair. Sand filters and underground detention facilities require cleaning, pumping, sediment removal, filter media replacement, and debris removal. Specific required maintenance items noted from inspections include replacing filter cartridges at the Radnor Heights retention vault, replanting vegetation at Memorial Chapel rain gardens and bioretention areas per original design specifications, removing sediment and dredging from several detention basins, replacing inlet grates, and planting replacement trees at Henderson Hall. The contractor must provide a proposed maintenance schedule prior to project start, notify the Activity Point of Contact 48 hours before beginning work on each facility, provide weekly oversight with at least one day per week on-site, inspect all 58 SMFs throughout the contract period, and obtain Government approval upon completion of each facility's maintenance before the work is considered complete.
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| Stormwater BMP Name | Stormwater Management Facility Type | SMF ID | Latitude | Longitude | Approx. Impervious Acreage Treated | Approx. Pervious Acreage Treated | Approx. Total Acreage Treated | Runoff Treated (Acre-Feet) | Approx. Date Built | Description | Capacity/Storage Volume/Size | Required Maintenance | |
| Filterra units behind Radnor Heights Substation | Bioretention/filtration | JBM-HH_B1 | 38.885795 | -77.082912 | 0.68 | 0 | 0.68 | 0.057 | 6/30/11 | Two Filterra® stormwater bioretention/filtration systems to treat runoff from paved roadway. | |||
| Two grates for two plants, but one large vault underneath. Vault is 13’ x 7’2” | Unknown | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | |||||||||||
| Bioretention area behind Radnor Heights Substation | Bioretention | JBM-HH_B10 | 38.885714 | -77.082042 | 0.19 | 0.13 | 0.32 | 0.016 | 6/30/06 | Approx. 10 ft x 20 ft basins with three channels directing runoff from parking area. Currently contains flowering plants. | Unknown | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |
| Jogging Path Permeable Pavement along McNair Road | Permeable Pavement | JBM-HH_B11 | 38.88523 | -77.07644 | 0.20 | 0 | 0.20 | 0.01583 | 6/1/20 | C soils with no underdrain. Designed to meet Level 1 criteria per VA DEQ Storm water Design Specification No. 7. | Routine maintenance: Vacuum during dry weather; replace or repair affected areas; remove any observed sediment and repair structural damage; ensure observation well is capped. | ||
| Old Post Chapel Lot Permeable Pavers | Permeable Pavement | JBM-HH_B12 | 38.880384 | -77.079347 | 0.26 | 0 | 0.26 | 0.02058 | 6/1/20 | C soils with underdrain. Designed to meet Level 1 criteria per VA DEQ Storm water Design Specification No. 7. | Routine maintenance: Vacuum during dry weather; replace pea gravel; replace or repair affected areas; remove any observed sediment and repair structural damage; ensure observation well is capped. |
Specific Required Maintenance based on Inspections: Replace pea gravel.
| Jogging Path Permeable Pavement along ANC Wall | Permeable Pavement | JBM-HH_B13 | 38.87998 | -77.07902 | 0.26 | 0 | 0.26 | 0.02058 | 6/1/20 | C soils with no underdrain. Designed to meet Level 1 criteria per VA DEQ Storm water Design Specification No. 7. | Routine maintenance: Vacuum during dry weather; replace or repair affected areas; remove any observed sediment and repair structural damage; ensure observation well is capped. | ||
| Hatfield Gate Vehicle Inspection loop Filterra systems | Micro-bioretention | JBM-HH_B2 | 38.871819 | -77.078847 | 3.03 | 0.75 | 3.78 | 0.253 | 6/30/05 | Five Filterra® stormwater bioretention/filtration systems to treat runoff from paved vehicle inpection loop road | |||
| Five units each with a separate vault. Each vault is 4.5’ x 6’. | Unknown | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | |||||||||||
| Memorial Chapel Rain Gardens | Rain gardens (2) | JBM-HH_B3 | 38.874019 | -77.078335 | 0.25 | 0 | 0.25 | 0.021 | 6/30/12 | Two rain gardens that provide infiltration for stormwater from pavement surfaces in front of the Chapel | Unknown | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
Specific Required Maintenance based on Inspections: Replace existing flowers with the following species: Rudbeckia hirta (balck-eyed susan), Monarda fistulosa (wild bergamot), Eupatorium coelestiunum (blue mistflower), Liatris spicata (blazing star), Heliopsis helianthoides (ox eye sunflower).
Biorention Area East of Building 411 Bioretention JBM-HH_B4 38.878002 -77.079534 0.77 0.27 1.04 0.063 5/30/18 Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
Specific Required Maintenance based on Inspections: Remove woody vegetation that is not included in the original design plans (to be provided).
| Permeable Pavement East of Building 411 | Permeable Pavement | JBM-HH_B5 | 38.877827 | -77.079491 | 0.33 | 0.01 | 0.34 | 0.028 | 5/30/18 | Routine maintenance: Vacuum during dry weather; replace or repair affected areas; remove any observed sediment and repair structural damage; ensure observation well is capped. |
| East Lot Biorention Area (northeast of Building 407) | Bioretention | JBM-HH_B6 | 38.877477 | -77.079375 | 0.11 | 0 | 0.11 | 0.009 | 4/30/19 | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
Specific Required Maintenance based on Inspections: Remove woody vegetation.
Sheridan Avenue Bioswale (AAFMAA) Bioretention JBM-HH_B7 38.872978 -77.080705 0.31 0.07 0.38 0.026 4/30/19 Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
Specific Required Maintenance based on Inspections: replace the broken stormwater inlet grate at the bottom of the swale Bioswales in Fitness Center Parking Lot Bioretention JBM-HH_B8 38.874987 -77.082009 0.3 0 0.3 0.025 4/30/19 Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
Specific Required Maintenance based on Inspections: Find cleanouts if buried and raise vertically to avoid being buried in the future.
Three bioswales - Henderson Hall Parking Lot Bioretention JBM-HH_B9 38.869252 -77.073915 1.022 0.48 1.50 0.09 12/1/19 Three dry swales located in the center of the Henderson Hall Parking Lot. Underground piping provides additional stormwater retention capacity. They were designed to meet level 2 criteria per VA DEQ storm water design specification No. 10 8,240 cubic feet (2,747 cubic feet per swale) Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
NOTE: Woody vegetation included in design should not be removed. Design plans to be provided.
Specific Required Maintenance based on Inspections: Replace trees that were removed frrom the northeastern portion of the bioswale along Northeast Road. Approximately five trees need to be planted.
| Basin at Wright Gate Vehicle Inspection Station | Micro-bioretention | JBM-HH_F1 | 38.887462 | -77.072636 | 0.52 | 0.29 | 0.81 | 0.043 | 6/30/05 | Small dry detention basin on SE side of Wright Gate Vehicle Inspection Station | Unknown | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
| Sheridan Ave UEPH | Filtering Practices (Sand filter) | JBM-HH_F2 | 38.878176 | -77.081241 | 1.81 | 0.1 | 1.91 | 0.15 | 6/1/11 | 3-chambered concrete sand filter vault (completed June 2011) | Unknown | Routine maintenance: clean and pump out underground sand filters; fill cracks in concrete; repair inlets, outlets and overflow devices; repair chambers; remove water; replace filter media; remove blockages; remove excess sediment; remove trash and debris; pick-up trash and debris. |
| TOG Maintenance Facility (Building 314) Sand Filter | Sand filter | JBM-HH_I1 | 38.88695 | -77.075088 | 0.304 | 0.1 | 0.404 | 6/30/04 | 10-ft wide x 57.5 ft x 13-ft deep precast concrete sandfilter vault | Volume = 7,475 cubic feet | Routine maintenance: clean and pump out underground sand filters; fill cracks in concrete; repair inlets, outlets and overflow devices; repair chambers; remove water; replace filter media; remove blockages; remove excess sediment; remove trash and debris; pick-up trash and debris. | |
| Pershing Drive Permeable Pavement Lot | Permeable Pavement | JBM-HH_M4 | 38.874226 | -77.079997 | 0.16 | 0 | 0.16 | 0.013 | 4/30/19 | Routine maintenance: Vacuum during dry weather; replace pea gravel; replace or repair affected areas; remove any observed sediment and repair structural damage; ensure observation well is capped. |
Specific Required Maintenance based on Inspections: Vacuum and replace pea gravel.
| Long Branch Detention Basin | Wet pond | JBM-HH_P1 | 38.868772 | -77.077144 | 31.31 | 1.69 | 33 | 2.61 | 6/30/95 | Large open detention basin west of Building 423 | Quantity storage volume = ~155,350 cf | |
| Quality storage volume = ~ 38, 365 | Routine maintenance: remove excessive vegetation and algae growth, remove woody vegetation, remove obstructions and repair any damage, repair and replant eroded areas, remove sediment and restore wet pond to original design, excavate excess sediment, mow and remove weeds, pick-up trash. |
Specific Required Maintenance based on Inspections: remove excessive vegetation, sediment, and algae growth from the bottom of the basin and along the wetern embankment.
Basin #2 – North of Building 325 Dry extended detention pond JBM-HH_P3 38.886322 -77.073823 18.8 10.13 28.93 1.567 6/30/05 Partial underground detention basin 7,049 cubic feet (as designed) Routine maintenance: remove blockages to infiltration; remove excess/woody vegetation; remove obstructions; repair and replant or re-seed areas; mow and remove weeds; remove sediment to restore detention basin to original design; pick-up trash.
Specific Required Maintenance based on Inspections: Remove woody vegetation growing at culvert openings.
Basin #1 - Building 330 (TMP) Fueling Station Wet pond JBM-HH_P4 38.884914 -77.075289 3.4 0.34 3.74 0.283 6/30/05 Aboveground retention basin 5,859 cubic feet (as designed) Routine maintenance: remove excessive vegetation and algae growth, remove woody vegetation, remove obstructions and repair any damage, repair and replant eroded areas, remove sediment and restore wet pond to original design, excavate excess sediment, mow and remove weeds, pick-up trash.
Specific Required Maintenance based on Inspections: Remove phragmites and woody vegetation. Dredge sediment from the bottom of the basin to the level of the inflow pipes at the bottom of the riser.
Building 205 Stormwater Basin Dry extended detention pond JBM-HH_P7 38.885838 -77.082061 18.4 3.25 21.65 1.53 6/30/05 Partial underground detention basin Unknown Routine maintenance: remove blockages to infiltration; remove excess/woody vegetation; remove obstructions; repair and replant or re-seed areas; mow and remove weeds; remove sediment to restore detention basin to original design; pick-up trash. Issues with the condition of the structure (i.e. cracks in the concrete) must be addressed on an as-needed basis.
Specific Required Maintenance based on Inspections: Dredge and remove sediment down to the riser structure's inlet pipe, then restabilize and establish vegetation at the corrected elevation. Fix deterioration of concrete in the center culvert to restabilize.
| Millenium Stormwater Interceptor Basin | Underground extended detention basin | JBM-HH_U1 | 38.885886 | -77.076561 | 7.02 | 8 | 15.02 | 0.585 | 6/30/07 | Large underground detention facility. Cast‐in‐place concrete structure with two parallel chambers separated by a 1’‐4” thick structural concrete wall. The interior of each chamber is 186’‐0” long by 18’‐4” wide by 16’‐0” tall. The two chambers are interconnected by two 3’‐0” by 3’‐0” openings at the bottom of the shared center wall. | Two chambers - capacity at ~54,560 cubic feet, 109,120 CF total. | |
| = 816,274 gallons | Routine maintenance: remove blockages to inlet and outlet structures; remove sediment and debris from storage chambers; remove floating debris and petroleum products (if present); trace sources of contamination and implement controls as-needed. |
Specific Required Maintenance based on Inspections: Remove trash and debris accumulated in the basin. Replace missing ladder rung within riser of manhole DB8.
| Henderson Hall underground detention | Underground pipe detention | JBMHH_U2 | 38.869416 | -77.072913 | 0.87 | 0.2 | 1.07 | 0.073 | 6/30/05 | Underground pipe detenion | Unknown | Routine maintenance: remove blockages to inlet and outlet structures; remove sediment and debris from storage chambers; remove floating debris and petroleum products (if present); trace sources of contamination and implement controls as-needed. |
| Buildings 419 and 421 Underground Detention (Barracks A and B) | Underground pipe detention | JBM-HH_U3 | 38.877901 | -77.081152 | 0.13 | 0.3 | 0.43 | 0.011 | 6/30/10 | Underground stormwater detention (located under basketball court) | Unknown | Note: Main issues to be addresed through FY22 contract, including removal of sediment. Unlikely to need maintenance through FY23 contract. |
Typical maintenance procedures: remove blockages to inlet and outlet structures; remove sediment and debris from storage chambers; remove floating debris and petroleum products (if present); trace sources of contamination and implement controls as-needed.
| TOG Maintenance Facility (Building 314) Underground Stormwater Basin | Underground extended detention/infiltration facility | JBM-HH_U4 | 38.886841 | -77.074909 | 0.304 | 0.1 | 0.404 | 0.025 | 6/30/04 | 24-ft x 72-ft x 6-ft deep underground detention facility | ~10,000 cubic feet | Routine maintenance: remove blockages to inlet and outlet structures; remove sediment and debris from storage chambers; remove floating debris and petroleum products (if present); trace sources of contamination and implement controls as-needed. |
| Stormwater retention vault and associated storm filter north of Radnor Heights Substation | Underground detention basin | JBM-HH_U5 | 38.886114 | -77.082626 | 0.24 | 0 | 0.71 | 0.02 | 6/30/11 | 64 ft x 8 ft retention vault and Contech storm filter | 1,300 cubic ft | Routine maintenance: remove water, remove excess sediment, remove trash and debris. If needed, fill cracks in concrete, repair inlets, outlets and manhole and remove obstructions. Replace filter cartridges in StormFilter® System. |
Specific Required Maintenance based on Inspections: Replace filter cartridges (Eight 27", 7.50 GPM, ZPG Cartridges)
&CJBM-HH MS4 Stormwater Management Facility Inventory
Ft McNair
| Stormwater BMP Name | Stormwater Management Facility Type | SMF ID | Latitude | Longitude | Approx. Pervious Acreage Treated | Approx. Impervious Acreage Treated | Approx. Acreage Treated | Runoff Treated (acre-feet) | Approx. Date Built | Location Description | Description | Capacity - Storage Volume | Required Maintenance |
| Physical Fitness Center Bioretention - Parking lot | Bioretention | FMN_F1 | 38.87018 | -77.01412 | 1.43 | 1.31 | 2.74 | 1 | 2006 | NE corner of Fitness Center | Vegetated bioretention area to treat parking lot and roof runoff | 3,503.5 ft3 | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
NOTE: Woody vegetation included in design to remain. Design plans to be provided.
| Phyical Fitness Center Building Microbioretention | Microbioretention | FMN_F2 | 38.87008 | -77.01477 | 0.09 | 0.68 | 0.77 | 0.5 | 2006 | Three microbioretention boxes on west side of Fitness Center to treat roof runofff | Vegetated buffer adjacent to fitness center | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |
| Bioretention area east of USATA Garage | Bioretention | FMN_F3 | 38.870978 | -77.014944 | 0 | 0.14 | 0.26 | 1.2 | 8/1/17 | 609.84 cubic feet | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
Specific Required Maintenance based on Inspections: Install energy dissapator/larger stone just downhill from the curbcut to address erosion. Repalce missing cleanout pipe cap.
NDU Marshall Hall Microbioretention (SE of B62) Microbioretention FMN_F4 38.86557 -77.014073 0.25 2.75 1.65 2012 NDU Marshall Hall South Plaza Bioswale with engineered soil and underdrain; no direct outlet to storm drain system Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
Specific Required Maintenance based on Inspections: Replant bioswale plantings per the original design plan (to be provided). Includes a mix of common rush, big bluestem, swamp milkweed, blue liriope, and more.
| Bioretention area west of USATA Garage | Bioretention | FMN_F5 | 38.870728 | -77.015432 | 0 | 0.05 | 0.13 | 1.2 | 8/1/17 | 217.8 cubic feet | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | ||
| BaySaver Technologies BaySeparator System | Hydrodynamic structure | 38.8668 | -77.01404 | 0 | 1.5 | 1.5 | 2007 | East of the SE corner of B64 | Dual manhole filtration system | ||||
| BaySaver Technologies BaySeparator System | Hydrodynamic structure | 38.86863 | -77.01529 | 0 | 1.5 | 1.5 | 2007 | West of the parking lot between B69 and B64 | Dual manhole filtration system | ||||
| BaySaver Technologies BaySeparator System | Hydrodynamic structure | 38.86693 | -77.0166 | 0 | 1.45 | 1.45 | 2007 | East of B20 | Dual manhole filtration system | ||||
| BaySaver Technologies BaySeparator System | Hydrodynamic structure | 38.86342 | -77.01731 | 0 | 1.45 | 1.45 | 2007 | N of B61 | Dual manhole filtration system | ||||
| Underground pipe detention | Extended Detention | 38.86656 | -77.01676 | 0.25 | 2.75 | 3 | 1/1/06 | E of tennis courts | Underground pipe detention | ||||
| Bioswale adjacent to the Seawall | Bioswale | FMN_F6 | 38.863182 | -77.018426 | 1.49 | 0.37 | 1.86 | 1.2 | 2017 | Open channel dry swale constructed for for the Seawall Repairs project. 1,100 feet long (based on as-builts) | 5764 cubic feet | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |
| USATA Garage Greenroof | Greenroof | FMN_GR1 | 38.870756 | -77.015198 | 0 | 0.25 | 0.25 | 1.2 | 8/1/17 | 1,089 cubic feet | Routine maintenance: conduct spot weeding and replace any plants, as-needed. Water plants as-needed during periods of extended drought. Vegetation replanted must be in accordance with the design specifications of the green roof. | ||
| Grass swale | Grass swale | FMN_GS1 | 38.86863187 | -77.01529075 | 0.25 | 2.75 | 3 | 0.5 | 1/1/06 | West of the parking lot between B69 and B64 | Grass swale surrounding fitness center parking lot | Routine maintenance: remove sediment and debris from in and around the swale. Mow swale and remove weeds or invasive plants. Mow no shorter than 2 1/2 to 3 inches. Repair eroded areas, reseed, and water on an as-needed basis. | |
| BaySaver Technologies BaySeparator System (SW Corner of Parking Lot between B69 and B64) | Hydrodynamic structure | FMN_M1 | 38.8683 | -77.01518 | 0 | 1.45 | 1.45 | 1.2 | 2006 | Southwest corner of the parking lot between B69 and B64 | Dual manhole filtration system | Routine maintenance: Use a vacuum truck to clean out all water, debris, oil, and sediment from the storage manhole. Use a submersible pump to pump the bulk of the water from the primary manhole into the clean storage manhole. Clean the manhole of remaining sediment and debris using a hose, then vacuum out rinse water. | |
| BaySaver Technologies BaySeparator System (NW Corner of B64) | Hydrodynamic structure | FMN_M2 | 38.868 | -77.01519 | 0.59 | 1.5 | 2.09 | 0.5 | 2006 | Northwest corner of B64 | Dual manhole filtration system | Routine maintenance: Use a vacuum truck to clean out all water, debris, oil, and sediment from the storage manhole. Use a submersible pump to pump the bulk of the water from the primary manhole into the clean storage manhole. Clean the manhole of remaining sediment and debris using a hose, then vacuum out rinse water. | |
| BaySaver Technologies BaySeparator System (NE Corner of B64) | Hydrodynamic structure | FMN_M3 | 38.86811 | -77.0143 | 0 | 1.5 | 1.5 | 0.5 | 2006 | Northeast corner of B64 | Dual manhole filtration system | Routine maintenance: Use a vacuum truck to clean out all water, debris, oil, and sediment from the storage manhole. Use a submersible pump to pump the bulk of the water from the primary manhole into the clean storage manhole. Clean the manhole of remaining sediment and debris using a hose, then vacuum out rinse water. | |
| BaySaver Technologies BaySeparator System (NW Corner of B62) | Hydrodynamic structure | FMN_M4 | 38.86651 | -77.01524 | 0 | 1.45 | 1.45 | 0.5 | 2006 | Northewest corner of B62 | Dual manhole filtration system | Routine maintenance: Use a vacuum truck to clean out all water, debris, oil, and sediment from the storage manhole. Use a submersible pump to pump the bulk of the water from the primary manhole into the clean storage manhole. Clean the manhole of remaining sediment and debris using a hose, then vacuum out rinse water. | |
| BaySaver Technologies BaySeparator System (2nd St. Gate Parking Area) | Hydrodynamic structure | FMN_M5 | 38.8706124962 | -77.0140190306 | Adjacent to Police Station (B65) at McNair entrance along 2nd Street | Routine maintenance: Use a vacuum truck to clean out all water, debris, oil, and sediment from the storage manhole. Use a submersible pump to pump the bulk of the water from the primary manhole into the clean storage manhole. Clean the manhole of remaining sediment and debris using a hose, then vacuum out rinse water. | |||||||
| Bioretention Area between 4th Avenue and 5th Avenue, S of residences | Bioretention | FMN_P1 | 38.867613 | -77.015657 | 0.25 | 0.5 | 0.75 | 1 | 2012 | Between 4th and 5th Avenue (former swimming pool) | Vegetated bioretention area to treat parking lot runoff | 37,019 cubic feet |
276919 gallons
0.276918 million gallons Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil).
Specific Required Maintenance based on Inspections: Replant bioretention plantings per the original design plan (to be provided). Includes a mix of trees, shrubs, and grasses.
Does not exist
&CJBM-HH MS4 Stormwater Management Facility Inventory
OY1 & 2 Additional SMFs
| Installation | Stormwater BMP Name | Stormwater Management Facility Type | USACE ID | Latitude | Longitude | Approx. Impervious Acreage Treated | Approx. Pervious Acreage Treated | Approx. Total Acreage Treated | Runoff Treated (Acre-Feet) | Approx. Date Built | Description | Capacity/Storage Volume/Size | Required Maintenance |
| Fort Myer-Henderson Hall | Filerra Unit 542 - Building 416 Parking Lot | Tree box filter unit | TBD | 38.876317 | -77.082006 | 0.14 | 0.11 | 0.25 | TBD | Spring 2024 | Model # - FT0610 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the South of Building 416. | 6' x 10' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 545 - Building 416 Parking Lot | Tree box filter unit | TBD | 38.876281 | -77.082295 | 0.12 | 0.09 | 0.21 | TBD | Spring 2024 | Model # - FT0610 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the South of Building 416. | 6' x 10' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 700 - Commissary Parking Lot | Tree box filter unit | TBD | 38.870403 | -77.077071 | 0.40 | 0.24 | 0.64 | TBD | Spring 2024 | Model # - FT1808 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 18' x 8' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 701 - Commissary Parking Lot | Tree box filter unit | TBD | 38.870313 | -77.077532 | 0.27 | 0.07 | 0.34 | TBD | Spring 2024 | Model # - FTIBC0713-C |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 7' x 13' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 702 - Commissary Parking Lot | Tree box filter unit | TBD | 38.870383 | -77.077646 | 0.43 | 0.10 | 0.53 | TBD | Spring 2024 | Model # - FT1608 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 16' x 8' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 703 - Commissary Parking Lot | Tree box filter unit | TBD | 38.869999 | -77.077134 | 0.19 | 0.07 | 0.26 | TBD | Spring 2024 | Model # - FTIBC1006-C |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 10' x 6' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 704 - Commissary Parking Lot | Tree box filter unit | TBD | 38.869757 | -77.076895 | 0.31 | 0.07 | 0.38 | TBD | Spring 2024 | Model # - FTIBC1208-C |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 12' x 8' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 706 - Commissary Parking Lot | Tree box filter unit | TBD | 38.869583 | -77.077808 | 0.25 | 0.08 | 0.33 | TBD | Spring 2024 | Model # - FT1805 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 18' x 5' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 707A - Commissary Parking Lot | Tree box filter unit | TBD | 38.869709 | -77.077953 | 0.27 | 0.06 | 0.33 | TBD | Spring 2024 | Model # - FT1805 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 18' x 5' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 707B - Commissary Parking Lot | Tree box filter unit | TBD | 38.86987 | -77.078141 | 0.21 | 0.05 | 0.26 | TBD | Spring 2024 | Model # - FT1307 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 13' x 7' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 708A - Commissary Parking Lot | Tree box filter unit | TBD | 38.870177 | -77.078315 | 0.28 | 0.40 | 0.68 | TBD | Spring 2024 | Model # - FT0814 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 8' x 14' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 708B - Commissary Parking Lot | Tree box filter unit | TBD | 38.87013 | -77.078261 | 0.28 | 0.40 | 0.68 | TBD | Spring 2024 | Model # - FTIBC1408-C |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northwest of the Commissary | 14' x 8' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 746 - Rader Clinic Parking Lot | Tree box filter unit | TBD | 38.869232 | -77.075717 | 0.24 | 0.09 | 0.33 | TBD | Spring 2024 | Model # - FT1107 |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northeast of the Rader Clinic. | 11' x 7' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort Myer-Henderson Hall | Filterra Unit 747 - Rader Clinic Parking Lot | Tree box filter unit | TBD | 38.869359 | -77.075508 | 0.26 | 0.07 | 0.33 | TBD | Spring 2024 | Model # - FTIBC1208-C |
| Filterra® stormwater bioretention/filtration system to treat runoff from the parking lot to the Northeast of the Rader Clinic. | 12' x 8' | Routine maintenance: remove debris, trash and silt from filter; replace the surface mulch layer; evaluate plant health and replace as necessary; dispose of all refuse items; and clean the area surrounding each Filterra® system. Pruning and fertilizing must not be conducted on these units. If replanting is required, vegetation replanted must be in accordance with the design specifications of the Filterra® system. | ||||||||||
| Fort McNair | Quarters 24 Bioretention | Bioretention Area | FMN_F7 | 38.8696605556 | -77.0155451065 | 0.06 | 0.10 | 0.17 | 0.0061 | 9/5/23 | 444 ft3 | |
| 73'x7' | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |||||||||||
| Fort McNair | Quarters 25 Bioretention | Bioretention Area | FMN_F8 | 38.8694559017 | -77.015539742 | 0.06 | 0.13 | 0.19 | 0.015 | 9/5/23 | 1205 ft3 | |
| 72'x7' + 16'x20' | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |||||||||||
| Fort McNair | Quarters 26 Bioretention | Bioretention Area | FMN_F9 | 38.8692220108 | -77.0155290132 | 0.03 | 0.09 | 0.12 | 0.010 | 9/5/23 | 901 ft3 | |
| 85'x3' + 20'x2' | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |||||||||||
| Fort McNair | Quarters 27 Bioretention | Bioretention Area | FMN_F10 | 38.8689922957 | -77.0155504709 | 0.07 | 0.10 | 0.17 | 0.013 | 9/5/23 | 958 ft3 | |
| 68'x8' + 20'x7' | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). | |||||||||||
| Fort McNair | Building 59 Bioretention Area | Bioretention Area | TBD | 38.8622634037 | -77.0154646402 | 0.74 | 0.10 | 0.84 | 0.044 | Summer 2024 | 2864 ft3 | |
| 70'x31' | Routine maintenance: remove blockages to infiltration, remove dead/diseased vegetation, replant vegetation, re-seed, re-mulch annually, remove excess sediment and clear obstructions, mow and remove weeds, remove woody vegetation unless part of the original design of the SMF, pick-up trash. If replanting or reseeding is required, vegetation/seeding replanted must be in accordance with the design specifications of the bioretention area. EMD must be notified if signs of contamination are observed during the annual maintenance activities (i.e. dark staining that could signify oil). |
File details come from the government source that posted it. Updated .