1240815MAINTENANCE MANUAL rcd 3 12 2026

• Chapter 9.8 Small Scale Infiltration Basins • Chapter 9.9 Small Scale Sand Filters • Chapter 9.10 Vegetative Filter Strips • Chapter 10.1 Large Scale Bioretention Systems • Chapter 10.2 Large Scale Infiltration Basins • Chapter 10.3 Large Scale (GI) Sand Filter • Chapter 10.4 Standard constructed Wetlands • Chapter 10.5 Wet Ponds (GI) • Chapter 11.1 Blue Roofs (Non-GI) • Chapter 11.2 Extended Detention Basins (Non-GI) • Chapter 11.3 Manufactured Treatment Device (Non-GI) • Chapter 11.4 Sand Filters with Underdrain (Non-GI) • Chapter 11.5 Subsurface Gravel Wetlands • Chapter 11.6 Wet Ponds (Non-GI) More training information is available at NJ Stormwater.org (http://www.nj.gov/dep/stormwater/training.htm)  Vegetation Care Example Training Material  NJDEP Stormwater BMP Manual, Chapter Seven: Landscaping  Field Manual Usage Training Example Training Material  Field Manuals attached to this Maintenance Plan  “Pointy end of shovel goes into ground”.  Equipment and Tools Operation Training Example Training Material  Equipment or tool manufacturer’s Operation & Maintenance Manual  Occupational Safety Training Example Training Material  OSHA Training  Equipment or tool manufacturer’s Operation & Maintenance Manual Training Records Training attendance sheets should be attached by the responsible party after each training. 12

K. Annual Evaluation of the Effectiveness of the Plan The person responsible for maintenance shall evaluate the effectiveness of the maintenance plan at least once per year and adjust the plan and the deed as needed. The responsible party should evaluate the effectiveness of the maintenance plan by comparing the maintenance plan with the actual performance of the maintenance. The items to evaluate may include, but not limited to, - Whether the inspections have been performed as scheduled; - Whether the preventive maintenance has been performed as scheduled; - Whether the frequency of preventative maintenance needs to increase or decrease; - Whether the planned resources were enough to perform the maintenance; - Whether the repairs were completed on time; - Whether the actual cost was consistent with the estimated cost; - Whether the inspection, maintenance, and repair records have been kept. If actual performance of those items has been deviated from the maintenance plan, the responsible party should find the causes and implement solutions in a revised maintenance plan. Annual Evaluation Records Evaluator(s) Date of Evaluation Decision __Maintain current version OR __Revise current version Revision date _________ (also update the last revision date on the cover page) __Requires a new deed recording (also update the last recording information on the cover page) __Maintain current version OR __Revise current version Revision date _________ (also update the last revision date on the cover page) __Requires a new deed recording (also update the last recording information on the cover page) __Maintain current version OR

last recording information on the cover page) __Maintain current version OR __Revise current version Revision date _________ (also update the last revision date on the cover page) __Requires a new deed recording (also update the last recording information on the cover page) 13

L. Documents Transfer Agreement If the maintenance plan identifies a person other than the developer as having the responsibility for maintenance, the plan shall include documentation of such person’s agreement to assume this responsibility, or the developer’s obligation to dedicate a stormwater management facility to such person under an applicable ordinance or regulation. OWNER OF RECORD: 127 Mitchell Street, LLC 516 Pleasant Valley Way West Orange, NJ 07052 Tel—347-370-2056 TRANSFER OF OWNERSHIP: EFFECTIVE DATE OF OWNERSHIP: ______________________________ OWNER: _____________________________________________________ ADDRESS: ___________________________________________________ PHONE: _________________________ FAX: _______________________ ALTERNATE PHONE: ___________________ EMAIL: ________________ NOTES: _____________________________________________________ Deed If the person responsible for maintenance is not a public agency, the maintenance plan and any future revisions shall be recorded upon the deed of record for each property on which the maintenance described in the maintenance plan must be undertaken. As-Built Drawings with Drainage Plans As-built construction plans of the stormwater management measure and copies of pertinent construction documents, such as laboratory test results, permits, and completion certificates should be included in this Maintenance Plan. Landscaping Plan for the Stormwater Management Measures If there is a Landscaping Plan for the stormwater management measures, it should be included in this Maintenance Plan. 14

Permeability Test/Infiltration Test Report If a permeability test or infiltration test is required and available, the reports for pre- construction and post-construction testing should be included in this Maintenance Plan. Groundwater Mounding Analysis If a groundwater mounding analysis is required and the groundwater mounding analysis was performed, a copy of the analysis should be included in this Maintenance Plan. Soil Boring Logs If any soil borings were taken prior to construction, a copy of the soil boring logs should be included in this Maintenance Plan. Local, State, Federal Permits Local, state, or federal permits related to the stormwater management measures for this development should be included in this Maintenance Plan. See Cost Estimate Section of This Maintenance Plan for more information. The requirement to obtain State permits depends on specific circumstances, such as, but not limited to, the specific design of the stormwater management measures, the maintenance actions, the access and disturbance, the disposal methods, the location of disposal, the method to empty a basin, the method to dredge the basin, the pollutants in the basin, the damages to the basin, and the method to repair the basin. Check Maintenance Guidance in NJDEP Stormwater Management Website for details and links to the relevant permits and program areas ( http://www.njstormwater.org). Safety Regulations and Requirements All local ordinances and state and federal regulations regarding occupational safety should be included in this Maintenance Plan. Devices/Tools/Equipment Operation and Maintenance Manual and Warranties Maintenance, repair, and replacement instructions for specialized, proprietary, and nonstandard equipment, tools, supplies, manufacturers’ product instructions, and user manuals should be included in this Maintenance Plan. 15

Part II- Field Manuals Preventative and corrective maintenance shall be performed to maintain the function of stormwater management measures, including repair or replacement of the structure; removal of sediment, debris or trash; restoration of eroded areas; snow and ice removal; fence repair or replacement; restoration of vegetation; repair or replacement of non- vegetated linings, and removal of rodent/wildlife and repair/restoration to damaged affected areas caused by them. 1. INLETS—In parking lots and driveways, rain (and melting snow) will travel across the ground as runoff to be collected into an underground piping system, by first dropping through metal grates into concrete boxes called inlets. The inlets have specially designed grates to prevent large pieces of debris and trash from getting into the inlet and pipes. All structures should be periodically inspected for debris and clean as needed. 2. PIPES—The runoff travels underground through the pipes to a point of discharge. These pipes are usually made of reinforced concrete (RCP), high density polypropylene (HDPeP—usually black plastic), or polyvinyl chloride (PVC—usually white plastic). Most pipes are of solid wall construction to transport runoff water or to be used to temporarily detain water as part of the detention system. Other pipes may be perforated, which can be used to let water drain out through the holes into the surrounding ground or water from the ground can flow into the pipes depending on soils, ground conditions, elevations, and so forth. Pipes should be periodically inspected for debris and clean as needed. Also the pipe system should be flush periodically in order to keep the sediment from accumulating inside the pipes. 3. DISCHARGE CONTROL STRUCTURES—The pipes and basins then flow to the “heart” of the stormwater management system—the discharge control structure. Runoff water from underground pipes or directly from the basin flows into this box-like device, which may have trash racks and top grates to

ischarge control structure. Runoff water from underground pipes or directly from the basin flows into this box-like device, which may have trash racks and top grates to further eliminate any debris that may have made it all the way through the system to this point. The box (usually of precast concrete or concrete block construction) may have an additional shorter wall inside with a small opening at the bottom. The small opening in the concrete wall (often covered with a metal plate with a hole in it) is designed to slow down the rate of water leaving the developed site in order to prevent flooding downstream properties. In larger rainstorms the runoff water will flow into the basin and pipes faster than it can flow out and will begin backing up creating a temporary pond. In even larger storms the runoff water may flow over the top of the discharge control structure grates—however, this is all accounted for in the design calculations. The discharge structure should be checked for debris and maintain cleaned so it can function properly. 16

4. GUTTERS/DOWNSPOUTS/SPLASH PADS—Under state and local stormwater regulations, runoff water flowing off of roofs is considered “clean” and does not necessarily have to be directed to the detention system which maybe basins, ponds, drywells, underground pipes and so forth. In general, allowing the water to flow through areas of dense vegetation (woodlands, meadows, and so forth, but not basic lawn areas) is sufficient to clean the water even further. In order for the water to flow clean, the system should be maintain clean. 5. DRYWELLS- In general these are large concrete cylinders (similar to concrete manholes) with numerous openings in the side walls and open bottoms. The concrete cylinders are placed below ground and are almost always surrounded by several feet of clean crushed stone beneath the cylinder and along its side walls. A plastic type filter cloth (called a “geotextiles” is placed between the stone and the surrounding soil to keep soil particles from getting into the spaces between the stones. Runoff water is piped to the drywells where it first slows into the concrete cylinders. If the inflow of water is large enough, the openings in the stone will fill with water and the cylinder will fill with water. This rising water will pass through the openings in the cylinder grove walls into the surrounding stone. If the inflow is sufficiently large the concrete cylinder may fill to the top and spill out through an overflow pipe or bubble out through a grate covering the top of the cylinder. 17

PART III—Gutters and Leaders As part of good maintenance procedure, it is recommended that the gutters and leaders be periodically inspected and cleaned. The building drainage system should particularly be inspected during the autumn when falling and blowing leaves and miscellaneous materials can easily clog drain pipes, plug downspouts, and cover inlet grates. Gutters and leaders should also be inspected in the springtime for debris, correct pitch, loose connections, and other various problems that may have occurred over the winter. It is also suggested that the system be examined whenever large storms are predicted. Debris removed from the drainage system should be examined for reuse. That is, it can be separated into trash, recyclables, and organic matter. Organic materials such as leaves and twigs could possibly be composted if there is sufficient room at the site for such activity. Equipment for gutter and leader cleaning could include ladders, “grab” poles, rakes, plumber’s snakes, and garden hoses. Heavy duty rubber or leather work gloves, non- slip work shoes, and protective eyewear are also recommended. PART IV—Inlets Inlets and discharge control devices should be inspected after several storms to ensure that they are functioning properly and that there is no erosion or debris problems developing. Source of sediment contamination should be identified and controlled when native soil is exposed or erosion channels are present. Inspect for sediment and debris buildup. Sediment buildup exceeding 2 inches in depth or that begins to constrict the flow path should be removed. The Inlet control devices should particularly be inspected during the autumn when falling and blowing leaves and miscellaneous materials can easily clog drain pipes, plug downspouts, and cover inlet grates. Clean out leaves, trash, debris, etc. Maintain records of all inspections and maintenance activity. Include estimate of sediment and/or debris removed. Indicate sediment and/or debris disposal methods. 18

PART V - Porous Pavers System BMP#1 Porous Pavers System Overview Functionality Porous pavers systems are paved areas that produce less stormwater runoff than areas paved with conventional pavers. This reduction is achieved primarily through the infiltration of a greater portion of the rain falling on the area than would occur with conventional pavers. This increased infiltration occurs either through the pavers material itself or through void spaces between individual pavers blocks known as pavers. Porous pavers systems are divided into two general types. Each type depends primarily upon the nature of the Porous pavers surface course and the presence or absence of a runoff storage bed beneath the surface course. Porous pavers and permeable paver with storage bed systems treat the stormwater quality design storm runoff through storage and infiltration. Therefore, these systems have adopted TSS removal rates similar to infiltration structures. The adopted TSS removal rate for each type of Porous pavers system is from 80%. Porous pavers systems are used to reduce runoff rates and volumes from paved, on- grade surfaces such as patios, walkways, driveways, fire lanes, and parking spaces. Porous pavers systems with runoff storage beds achieve these reductions through storage of runoff and eventual infiltration into the subgrade soils. Through this infiltration process, these types of Porous pavers systems also achieve stormwater quality requirements. Proper care and attention in the long-term maintenance of the stormwater management measure is critically important to the safety and health of the public. Type of BMP – Dry Stormwater Management Measure The Porous pavers system shall fully drain within 72 hours of the most recent rainfall. Standing water in excess of 72 hours is a sign of the porous pavers failure. It may also contribute to mosquito breeding and other health and safety issues. At no time shall there be ponding on the surface of the pavers. 19