LONG-TERM POLLUTION PREVENTION PLAN AND STORMWATER OPERATION AND MAINTENANCE PLAN Track and Field Renovation 250 Foundry Street, Easton, MA

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1 LONG-TERM POLLUTION PREVENTION PLAN AND STORMWATER OPERATION AND MAINTENANCE PLAN Track and Field Renovation 250 Foundry Street, Easton, MA TABLE OF CONTENTS 1.0 INTRODUCTION LONG-TERM POLLUTION PREVENTION PLAN Source Control Practices for Pollution Prevention Storage of Hazardous Materials Underground Storage Tanks Storage of Waste Products Spill Prevention and Response Minimize Soil Erosion Vehicle Washing Maintenance of Lawns, Gardens, and other Landscaped Areas Management of Deicing Chemicals and Snow Coordination with other Permits and Requirements STORMWATER MANAGEMENT SYSTEM OPERATION AND MAINTENANCE PLAN Introduction Stormwater Operation and Maintenance Requirements... 5 Subsurface Infiltration Structures... 5 Stormwater Outfalls... 5 Stormwater Buffer Zone (Treatment Device) Street Sweeping Repair of the Stormwater Management System Reporting STORMWATER BUFFER ZONE OPERATION AND MAINTENANCE... 7 STORMWATER MANAGEMENT SYSTEM INSPECTION FORM... 8

2 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, INTRODUCTION The purpose of this document is to specify the pollution prevention measures and stormwater management system operation and maintenance for the track and field renovation project site located at 250 Foundry Street. The Owner shall implement the management practices outlined in this Manual and proactively conduct operations at the project site in an environmentally responsible manner. Compliance with this Manual does not in any way dismiss the Owner, property manager, or occupants from compliance with other applicable Federal, State or local laws. Owner: Southeastern Regional Vocational Technical School 250 Foundry Street Easton, MA This Document has been prepared in compliance with Standards 4 and 9 of the 2008 Massachusetts Department of Environmental Protection (MassDEP) Stormwater Management Standards, which state: Standard 4: The Long Term Pollution Prevention Plan shall include the proper procedures for the following: Good housekeeping Storing materials and waste products inside or under cover Vehicle washing Routine inspections of stormwater best management practices Spill prevention and response Maintenance of lawns, gardens, and other landscaped areas Storage and use of fertilizers, herbicides, and pesticides Pet waste management Operation and management of septic systems Proper management of deicing chemicals and snow Standard 9: The Long-Term Operation and Maintenance Plan shall at a minimum include: Stormwater management system(s) owner(s) The party or parties responsible for operation and maintenance, including how future property owners shall be notified of the presence of the stormwater management system and the requirement for operation and maintenance The routine and non-routine maintenance tasks to be undertaken after construction is complete and a schedule for implementing those tasks A plan that is drawn to scale and shows the location of all stormwater BMPs in each treatment train along with the discharge point A description of public safety features An estimated operations and maintenance budget Page 1

3 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, LONG-TERM POLLUTION PREVENTION PLAN 2.1 Source Control Practices for Pollution Prevention The Owner and occupants should follow good housekeeping procedures at the project site to reduce the possibility of accidental releases and to reduce safety hazards, which shall include but not be limited to the following: Proper handling, storage, disposal, and recycling of hazardous materials and waste products Proper handling, storage and inventory of household chemicals Prompt cleanup and removal of spills and releases 2.2 Storage of Hazardous Materials To prevent leaks and spills, keep hazardous materials and waste products under cover or inside. Use drip pans or spill containment systems to prevent chemicals from entering the drainage system. Inspect storage areas for materials and waste products at least once per year to determine amount and type of the material on site, and if the material requires disposal. Securely store liquid petroleum products and other liquid chemicals in federally- and state-approved containers. Restrict access to maintenance personnel and administrators. Store fluid fertilizers in labeled containers and/or structures that prevent the discharge of fluid fertilizers and are resistant to corrosion, puncture, or cracking. Store and handle dry fertilizers in a manner to prevent pollution by minimizing losses to the air, surface water, ground water, or subsoil. 2.3 Underground Storage Tanks No underground storage tank for oil or hazardous material is permitted in any Resource Area or within 50 feet of these areas. 2.4 Storage of Waste Products Collect and store all waste materials in securely lidded dumpster(s) or other secure containers as applicable to the material. Keep dumpster lids closed and the areas around them clean. Do not fill the dumpsters with liquid waste or hose them out. Sweep areas around the dumpster regularly and put the debris in the garbage, instead of sweeping or hosing it into the parking lot. Legally dispose of collected waste on a regular basis. Segregate liquid wastes, including motor oil, antifreeze, solvents, and lubricants, from solid waste and recycle through hazardous waste disposal companies, whenever possible. Separate oil filters, batteries, tires, and metal filings from grinding and polishing metal parts from common trash items and recycle. These items are not trash and are illegal to dump. Contact a hazardous waste hauler for proper disposal of unwanted pesticides to a hazardous waste collection center. 2.5 Spill Prevention and Response The Owner shall implement spill response procedures for releases of significant materials such as fuels, oils, or chemical materials onto the ground or other area that could reasonably be expected to discharge to surface or groundwater. For minor spills, keep fifty (50) gallon spill control kits and Speedy Dry at all shop and work Page 2

4 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, 2015 areas. Immediately contact applicable Federal, State, and local agencies for reportable quantities as required by law. Immediately perform applicable containment and cleanup procedures following a spill release. Promptly remove and dispose of all material collected during the response in accordance with Federal, State and local requirements. A licensed emergency response contractor may be required to assist in cleanup of releases depending on the amount of the release, and the ability of the Contractor to perform the required response. Reportable quantities of chemicals, fuels, or oils are established under the Clean Water Act and enforced through Massachusetts Department of Environmental Protection (DEP). 2.6 Minimize Soil Erosion Soil erosion facilitates mechanical transport of nutrients, pathogens, and organic matter to surface water bodies. Repair all areas where erosion is occurring throughout the project site. Stabilize bare soil with riprap, seed, mulch, or vegetation. 2.7 Vehicle Washing Vehicle washing will not occur at the project site. 2.8 Maintenance of Lawns, Gardens, and other Landscaped Areas Pesticides and fertilizers shall not be used in the landscaped areas associated with the project site and shall not be stored on-site. Dumping of lawn wastes, brush or leaves or other materials or debris is not permitted in any Resource Area. Grass clippings, pruned branches and any other landscaped waste should be disposed of or composted in an appropriate location. No irrigation shall be used in the landscaped areas for this project. 2.9 Management of Deicing Chemicals and Snow The qualified contractor selected for snow plowing and deicing shall be made fully aware of the requirements of this section. No road salt (sodium chloride) shall be stored on-site. The use of magnesium chloride de-icing product with a 0.5 to 1.0 percent sodium chloride mix for snow and ice treatment is permitted. The product shall be stored in a locked room inside the building and shall be used at exterior stairs and walkways. The snow plow contractor shall adhere to these magnesium chloride use and storage requirements. During typical snow plowing operations, snow shall be pushed to the designated snow removal areas noted on a Snow Storage Plan. Snow shall not be stockpiled in the bioretention basins, infiltration areas, or any other drainage system as determined by the Conservation Commissions. In severe conditions where snow cannot be stockpiled on site, the snow shall be removed from the site and properly disposed of in accordance with DEP Guideline BRP Winter Maintenance Guidelines for Porous Asphalt: Plow after every storm. Special plow blades may be used, but are not required. Raised blade is not recommended. Page 3

5 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, 2015 Apply anti-icing treatments prior to storms. Apply deicing treatments during, and after storms as necessary to control compact snow and ice not removed by plowing. Sand application should be limited; it will increase the need for vacuuming. Apply standard amounts of deicing agents during storm events Before winter begins, the property owner and the contractor shall review snow plowing, deicing, and stockpiling procedures. Areas designated for stockpiling should be cleaned of any debris. Street and parking lot sweeping should be followed in accordance with the Operation and Maintenance Plan Coordination with other Permits and Requirements Certain conditions of other approvals affecting the long term management of the property shall be considered part of this Long Term Pollution Prevention Plan. The Owner shall become familiar with those documents and comply with the guidelines set forth in those documents. Page 4

6 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, STORMWATER MANAGEMENT SYSTEM OPERATION AND MAINTENANCE PLAN 3.1 Introduction This Operation and Maintenance Plan (O&M Plan) for 250 Foundry Street project site is required under Standard 9 of the 2008 MassDEP Stormwater Handbook to provide best management practices for implementing maintenance activities for the stormwater management system in a manner that minimizes impacts to wetland resource areas. The Owner shall implement this O&M Plan and proactively conduct operations at the site in an environmentally responsible manner. Compliance with this O&M Plan does not in any way dismiss the Owner from compliance with other applicable Federal, State or local laws. Routine maintenance during construction and post-development phases of the project, as defined in the Operation and Maintenance Plan, shall be permitted without amendment to the Order of Conditions. A continuing condition in the Certificate of Compliance shall ensure that maintenance can be performed without triggering further filings under the Wetlands Protection Act. All stormwater best management practices (BMPs) shall be operated and maintained in accordance with the design plans and the Operation and Maintenance Plan approved by the issuing authority. The Owner shall: a. Maintain an operation and maintenance log for the last three years, including inspections, repairs, replacement and disposal (for disposal the log shall indicate the type of material and the disposal location). This is a rolling log in which the responsible party records all operation and maintenance activities for the past three years. b. Make this log available to MassDEP and the Conservation Commissions upon request; and c. Allow members and agents of the MassDEP and the Conservation Commissions to enter and inspect the premises to evaluate and ensure that the Owner complies with the Operation and Maintenance requirements for each BMP. 3.2 Stormwater Operation and Maintenance Requirements Inspect and maintain the stormwater management system as directed below. Repairs to any component of the system shall be made as soon as possible to prevent any potential pollutants (including silt) from entering the resource areas. Subsurface Infiltration Structures Inspect subsurface infiltration structures twice per year. Inspect the inlets and observation ports to determine if there is accumulated sediment within the system. Remove all debris and accumulated sediment that may clog the system. Stormwater Outfalls Inspect flared end sections and associated riprap spillways at least once per year and after major storm events (rainfall totals greater than 2.5 inches in 24 hours) to ensure that the stability of the outlet area is maintained. Keep the outfall area clear of debris such as trash, branches, and sediment. Make repairs immediately if riprap displacement or downstream channel scour is observed. Page 5

7 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, 2015 Stormwater Buffer Zone (Treatment Device) See the attached Stormwater Buffer Zone Operation and Maintenance plan for information on product inspection and maintenance. 3.3 Street Sweeping Perform street sweeping at least twice per year, whenever there is significant debris present on roads and parking lots. Street sweeping shall occur in the spring and fall. Sweepings must be handled and disposed of properly according to the Easton Conservation Commissions. 3.4 Repair of the Stormwater Management System The stormwater management system shall be maintained. The repair of any component of the system shall be made as soon as possible to prevent any potential pollutants including silt from entering the resource areas or the existing closed drainage system. 3.5 Reporting The Owner shall maintain a record of drainage system inspections and maintenance (per this Plan) and submit a yearly report to the Easton Conservation Commissions. Page 6

8 Track and Field Renovation, 250 Foundry Street, Easton, MA Notice of Intent Long Term Pollution Prevention Plan & Stormwater March 13, 2015 Operation and Maintenance Plan Revised April 22, STORMWATER BUFFER ZONE OPERATION AND MAINTENANCE Page 7

9 OPERATION AND MAINTENANCE Maintenance: Stormwater Buffer Zone is unique in that it s a highly effective stormwater treatment device that s both easy to maintain, and easy to clean. Because the geometry of the treatment skirt allows full and unobstructed access to the sediment storage area of the manhole from street level, maintenance costs are similar to those of cleaning out a standard catch basin. Stormwater Buffer Zone is cleaned by removing the street level inlet grate, removing and emptying the StormBrake gross pollutant trash strainer, and then removing material from the manhole sump using the same method and equipment that is used to clean standard catch basins. It is recommended that every maintenance procedure be recorded in the maintenance log for the site regardless of whether the unit is in construction period or post construction period use. Stormwater Buffer Zone Operation and Maintenance Page 1

10 Quick Guide: Stormwater Buffer Zone Operation and Maintenance Page 2

11 Stormwater Buffer Zone Operation and Maintenance Page 3

12 Stormwater Buffer Zone Operation and Maintenance Page 4

13 3.1 - Construction Period Use: Stormwater Buffer Zone may be placed in operation at any time during the construction period and will operate as a construction period BMP immediately without any modification. During the construction period the StormBrake strainer shall be removed and emptied monthly, and the underside of the treatment skirt brushed or rinsed off from street level before replacing the StormBrake strainer. At that time, or by separate inspection at another point during the month, the condition of the strainer and treatment skirt shall be inspected from the street level without entry into the unit. Additionally this inspection of the strainer and treatment skirt should also occur after storm events measuring 2.5 inches in a 24 hour period or period of rain equaling 1 inch per hour or greater. It is noted that during construction the drawdown period is expected to be 75% complete at least 24 hours after any size storm and, other than to check that drawdown is occurring at the expected rate, inspections are not recommended during this 24 hour period as the underside of the treatment skirt will not be fully visible until drawdown is complete. For several days after this drawdown period excess material which may remain on the underside of the treatment skirt is expected to have dried, shrunk, and dropped or be ready to drop to sump at the bottom of the unit. Ideally inspections of the treatment skirt will be made no less than 72 hours after the drawdown period to insure that any buildup of sediment on the underside of the treatment skirt is releasing or loosened as expected. However, if inspections of BMPs are otherwise required which would occur during this drawdown and post drawdown period, due to SWPPP, NPDES requirement, or other governing documents, that inspection shall also serve as a monthly inspection recommended by the manufacturer Transition to Post Construction Use: Stormwater Buffer Zone may be transitioned to post construction operation for stormwater attenuation, treatment, and recharge (if optioned), without any modification. If the unit has been used as a construction period BMP it should be cleaned as it enters post construction operation. Transitional cleaning of the unit includes removing and emptying the StormBrake strainer, and performing a standard cleanout of the manhole sump using a vactor truck. The treatment skirt should be cleaned by rinsing the underside with water using either low or high pressure. Once the unit is cleaned a visual inspection of the treatment skirt shall be made to verify there was no damage to the filter membrane during construction term. Note that entry into a manhole may be treated as a confined space entry, and is only to be performed by individuals trained in accordance with OSHA regulations and otherwise permitted and equipped to enter confined spaces. Stormwater Buffer Zone Operation and Maintenance Page 5

14 A written record of the transitional inspection should be entered in both the construction period BMP records and as the first entry in the post construction maintenance records if the records are handled separately Post Construction/Permanent Use Maintenance and Inspections: Stormwater Buffer Zone should be inspected once per year on a regular basis unless otherwise required in NPDES permit conditions, site specific maintenance plans, or other governing documents. During the first year an additional inspection at six months is suggested as a precautionary measure to determine if planned treatment skirt cleaning and sump cleanout intervals will be adequate or need to be adjusted. Adjustments to suggested maintenance intervals are recommended depending on experience on the particular site. Note that Inspections require steps 1,2,5, and 6 of the Maintenance Procedure (removing inlet grate and strainer in order to view SiltPrison treatment skirt) although disposal of StormBrake strainer contents in step 2 is optional for the inspector Inspection Record Format: It is important that stormwater quality devices be maintained and inspected regularly and that observations are recorded consistently and completely. Record keeping is an important part of any stormwater treatment plan and information recorded may be needed to evaluate the long term effectiveness of the design, or the suitability of the planned maintenance intervals. To assist the owner of the Stormwater Buffer Zone, Maintenance Record Forms are provided in the owner s manual for each unit and provide spaces for key information to be noted during each inspection. If Stormwater Buffer Zone Maintenance Record Forms are not going to be utilized because data is to be entered into custom reports or otherwise specific formats, it is recommended that space for the following information be provided: General Information (entered once on the report): Unit model number, unit serial number, latitude, longitude, and inlet/outlet elevations of installed unit, date of installation, installer s name and address, and date placed in service. Periodic Maintenance and Inspection Information (entered each time the unit is inspected or maintained): Date and time, temperature, name of operator or inspector, approximate weight and contents of StormBrake strainer, distance from inlet grate rim to water level, depth of sediment in the manhole sump, condition of the underside of the treatment skirt, any action taken to remove sediment from underside of treatment skirt (brush, rinse, agitate, etc.), and whether photos were taken to supplement inspection. Stormwater Buffer Zone Operation and Maintenance Page 6

15 For additional information and online resources visit Please contact us at or connect by at with any additional guidance. Stormwater Buffer Zone Operation and Maintenance Page 7

16 STORMWATER MANAGEMENT SYSTEM INSPECTION FORM Track and Field Renovation Inspected by: 250 Foundry Street, MA Date: Component Status/Inspection Action Taken Subsurface Infiltration System Stormwater Outfalls Stromwater Buffer Zone (Treatment Device) General site conditions evidence of erosion, etc. SUBMIT COPIES OF STORMWATER MANAGEMENT SYSTEM INSPECTION FORM TO THE EASTON CONSERVATION COMMISSIONS WITH THE YEARLY REPORT. Page 8