PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Chapter 31.2 STORMWATER MANAGEMENT [1] Sec. 31.2-1. Definitions. Sec. 31.2-2. Purpose and authorities. Sec. 31.2-3. Stormwater permit requirement; exemptions. Sec. 31.2-4. Stormwater management program established; submission and approval of plans; prohibitions. Sec. 31.2-5. Stormwater pollution prevention plan; contents of plan. Sec. 31.2-6. Stormwater management plan; contents of plans. Sec. 31.2-7. Pollution prevention plan; contents of plans. Sec. 31.2-8. Review of stormwater management plan. Sec. 31.2-9. Technical criteria for regulated land disturbing activities. Sec. 31.2-10. Grandfathering. Sec. 31.2-11. Variances. Sec. 31.2-12 Long-term maintenance of permanent stormwater facilities. Sec. 31.2-13. Monitoring and inspections. Sec. 31.2-14. Hearings. Sec. 31.2-15. Appeals. Sec. 31.2-16. Enforcement. Sec. 31.2-17. Fees. Sec. 31.2-18. Performance bonds. Sec. 31.2-19. Virginia Stormwater Management Handbook and BMP clearinghouse. Sec. 31.2-20. Severability. Sec. 31.2-21. Enforcement. Sec. 31.2-22. Classification of properties. Sec. 31.2-23. Pollution of the stormwater system. Sec. 31.2-24. Notice to correct drainage. Sec. 31.2-25. Authority. Sec. 31.2-26. Stormwater utility fees. Sec. 31.2-27. Late charges. Sec. 31.2-28. Stormwater fund. Sec. 31.2-1. Definitions. (a) In addition to the definitions set forth in 9VAC25-870-10 of the Virginia Stormwater Management Regulations, as amended, which are expressly adopted and incorporated herein by reference, the Portsmouth, Virginia, Code of Ordinances Page 1 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT following words and terms used in this article have the following meanings unless otherwise specified herein. Where definitions differ, those incorporated herein shall have precedence. Administrator means the city engineer, or his designee(s). Agreement in lieu of stormwater management plan means a contract between the VSMP authority and the owner or permittee specifying methods that shall be implemented to comply with the requirements of a VSMP for the construction of a single-family residence; such contract may be executed by the VMSP authority in lieu of a stormwater management plan. Applicant means any person submitting an application for a permit or requesting issuance of a permit under this article. Best management practice or BMP means schedules of activities, prohibitions of practices, including both structural and nonstructural practices, maintenance procedures, and other management practices to prevent or reduce pollution of surface waters and groundwater systems from the impacts of land disturbing activities. Chesapeake Bay Preservation Act land disturbing activity means a land disturbing activity including clearing, grading, or excavation that results in a land disturbance equal to or greater than 2,500 square feet and less than one acre in all areas of jurisdictions designated as subject to the regulations adopted pursuant to the Chesapeake Bay Preservation Act, Virginia Code § 62.1-44.15:67, et seq. Common plan of development or sale means a contiguous area where separate and distinct construction activities may be taking place at different times on different schedules. Control measure means any best management practice or stormwater facility, or other method used to minimize the discharge of pollutants to state waters. Clean Water Act or CWA means the federal Clean Water Act (33 U.S.C. § 1251 et seq.), formerly referred to as the Federal Water Pollution Control Act of Federal Water Pollution Control Act Amendments of 1972, Public Law 92-500, as amended by Public Law 95-217, Public Law 95-576, Public Law 96-483, and Public Law 97-117, or any subsequent revisions thereto. Department means the Virginia Department of Environmental Quality. Development means land disturbance and the resulting landform associated with the construction or demolition of residential, commercial, industrial, institutional, recreation, transportation or utility facilities or structures or the clearing of land for non-agricultural or non-silvicultural purposes. Developed property means any parcel which contains impervious surface area equal to or greater than 300 square feet or semi-pervious surface area equal to or greater than 600 square feet, or any combination equal to or greater than 300 square feet. Exempt property means any parcel which is owned by any federal, state or local agencies on which the agency provides for maintenance of the storm drainage and stormwater facilities, provided the proper permits for such facilities have been obtained from the Department of Environmental Quality. General permit means the state permit titled GENERAL PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES found in Part XIV (9VAC25-880-1 et seq.) of the regulations authorizing a category of discharges under the CWA and the Act within a geographical area of the Commonwealth of Virginia. Impervious surface area means surfaces, such as parking lots, sidewalks, driveways and roofs, on or in a lot or parcel of property which prevent the infiltration of water into the earth. Land disturbance or land disturbing activity means a manmade change to the land surface that potentially changes its runoff characteristics including clearing, grading, or excavation except that the term shall not include those exemptions specified in subsection 31.2-3(c) of this article. Portsmouth, Virginia, Code of Ordinances Page 2 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Layout means a conceptual plan showing the nature of the land disturbing activity proposed for the site and the type and location of any associated stormwater management facilities required at the time of approval. Minor modification means an amendment to an existing general permit before its expiration not requiring extensive review and evaluation including, but not limited to, changes in EPA promulgated test protocols, increased monitoring frequency requirements, changes in sampling locations, and changes to compliance dates within the overall compliance schedules. A minor general permit conditions, substantially increase or decrease the amount of surface water impacts, increase the size of the operation, or reduce the capacity of the facility to protect human health or the environment. Nonresidential property means all developed properties not meeting the residential property definition herein including but not limited to, commercial properties, industrial properties, parking lots, recreational and cultural facilities, hotels, offices, churches and multifamily facilities of five units or more. Operator means the owner or operator of any facility or activity subject to regulation under this article. Permit or VSMP permit means an approval to conduct a land disturbing activity issued by the administrator for the initiation of a land disturbing activity, in accordance with this article, and which may only be issued after evidence of general permit coverage has been provided to the department. Permittee means the person to whom the VSMP permit is issued. Person means any individual, corporation, partnership, association, state, municipality, commission, or political subdivision of a state, governmental body, including federal, state, or local entity as applicable, any interstate body or any other legal entity. Process water means water used in a commercial, industrial, manufacturing, or processing operation and which comes in contact with materials used in that operation or with the end product of the operation. Regulations means the Virginia Stormwater Management Program (VSMP) Permit Regulations, 9VAC-25-870, as amended. Residential property means developed property containing at least one but no more than four residences or dwelling units, and accessory uses related to but subordinate to the purpose of providing a permanent dwelling facility. Such property shall include but not be limited to houses, duplexes, triplexes, quadraplexes, townhouses, condominiums and mobile homes. Semi-pervious surface area means surfaces such as gravel lots or compacted soil, on or in a lot or parcel of property which substantially reduce the rate of infiltration of stormwater into the earth. For purposes of the utility, semi-pervious areas will be counted at one-half the measured area. Site means the land or water area where any facility or land disturbing activity is physically located or conducted, including adjacent land used or preserved in connection with the facility or land disturbing activity. Areas channelward of mean low water shall not be considered part of the site. State means the Commonwealth of Virginia. State board means the Virginia State Water Control Board. State permit means an approval to conduct a land disturbing activity issued by the state board in the form of a state stormwater individual permit or coverage issued under a state general permit or an approval issued by the state board for stormwater discharges from a municipal separate storm sewer system (MS4). Under these state permits, the commonwealth imposes and enforces requirements pursuant to the federal Clean Water Act and regulations, and the Virginia Stormwater Management Act and attendant regulations. State Water Control Law means Chapter 3.1 (§ 62.1-44.2 et seq.) of Title 62.1 of the Code of Virginia. State waters means all water, on the surface and under the ground, wholly or partially within or bordering the commonwealth or within its jurisdiction, including wetlands. Portsmouth, Virginia, Code of Ordinances Page 3 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Stormwater means precipitation that is discharged across the land surface or through conveyances to one or more waterways and that may include stormwater runoff, snow melt runoff, and surface runoff and drainage. Stormwater appeals board is the appeal authority designated by city council to hear appeals from any person aggrieved by a decision of the city in regard to stormwater without a formal hearing or by inaction of the city in regard to stormwater. The board shall be appointed by the city manager and shall consist of three members: the city engineer, the assistant administrator of public utilities and the administrator of public works. The city attorney or his designee shall serve a legal counsel to the board. Stormwater management plan means a document(s) containing material describing methods for complying with the requirements of section 31.2-6 of this article. Stormwater pollution prevention plan or SWPP means a document that is prepared in accordance with good engineering practices and that identifies potential sources of pollutants that may reasonably be expected to affect the quality of stormwater discharges from the construction site, and otherwise meets the requirements of this article. In addition, the document shall identify and require the implementation of control measures, and shall include, but not be limited to the inclusion of, or the incorporation by reference of, an approved erosion and sediment control plan, an approved stormwater management plan and a pollution prevention plan. Storm sewer or drain means a sewer which carries stormwater, surface runoff, street washwater and drainage, but which excludes sanitary sewage. Stormwater runoff means that part of precipitation that travels over natural altered or impervious surfaces to the nearest stream, channel, conduit or impoundment and appears in surface waters. Stormwater system means all manmade facilities, structures and natural watercourses used for collecting and conveying stormwater to, through and from drainage areas to the points of final outlet, including but not limited to, the following: streets, curbs and gutters, inlets, conduits and appurtenant features, canals, creeks, channels, catchbasins, ditches, drains, sewers, streams, gulches, gullies, flumes, culverts, siphons, retention or retention basins, dams, floodwalls, levees, pumping stations and wetlands. Subdivision means the same as defined in section 33.1-22 of the City of Portsmouth's Subdivision Ordinance. Total maximum daily load or TMDL means the sum of the individual wasteload allocations for point sources, load allocations for nonpoint sources, natural background loading, and a margin of safety. TMDLs can be expressed in terms of either mass per time, toxicity, or other appropriate measure. The TMDL process provides for point source versus nonpoint source trade-offs. Undeveloped property means any parcel which has not been altered from its natural state to disturb or alter the topography or soils on the property in a manner which substantially reduces the rate of infiltration of stormwater into the earth. Virginia Stormwater Management Act or Act means Article 2.3 (§ 62.1-44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of the Code of Virginia. Virginia Stormwater BMP Clearinghouse website means a website that contains detailed design standards and specifications for control measures that may be used in Virginia to comply with the requirements of the Virginia Stormwater Management Act and associated regulations. Virginia Stormwater Management Program or VSMP means a program approved by the state board after September 13, 2011, that has been established by a locality to manage the quality and quantity of runoff resulting from land disturbing activities and shall include such items as local ordinances, rules, permit requirements, annual standards and specifications, policies, and guidelines, technical materials, and requirements for plan review, inspection, enforcement, where authorized in this article, and evaluation consistent with the requirements of this article and associated regulations. Portsmouth, Virginia, Code of Ordinances Page 4 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Virginia Stormwater Management Program authority or VSMP authority means authority [such as the City of Portsmouth] approved by the state board after September 13, 2011, to operate a Virginia Stormwater Management Program. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-2. Purpose and authorities. (a) The purpose of this article is to ensure the general health, safety and welfare of the citizens of Portsmouth and to protect the quality and quantity of state waters from the potential harm of unmanaged stormwater, including protection from any land disturbing activity causing unreasonable degradation of properties, water quality, stream channels, and other natural resources, and to establish procedures whereby stormwater requirements related to water quality and quantity should be administered and enforced. (b) This article is adopted pursuant to Article 2.3 (§ 62.1-44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of the Code of Virginia and in compliance with 9VAC-25-870-20 and 9VAC.25-870-40 of the Virginia Stormwater Management Regulations. (c) The Federal Clean Water Act requires the city to implement a stormwater management program based on the regulations and requirements published by the United States Environmental Protection Agency. (d) The city is authorized by the Code of Virginia to construct, reconstruct, improve and extend a stormwater utility system and to issue revenue bonds, if needed, to finance in whole or in part the cost of such system and to establish just and equitable rates, fees and charges for the services and facilities provided by the system. (e) It is necessary and essential that the city provide for effective management and financing of a stormwater system within the city to provide a mechanism for mitigating the damaging effects of stormwater runoff on the environment and to improve the public health, safety and welfare by providing for the safe and efficient capture and conveyance of stormwater runoff, the improvement of water quality, and the correction of stormwater problems. (f) Stormwater runoff is associated with all developed properties in the city, whether residential or nonresidential, and the volume of each individual property's stormwater runoff is related to the amount of impervious and semi-pervious surface on the property. (g) The administrator shall be responsible for the use, management, operation and maintenance of the stormwater system as prescribed by this chapter. The administrator shall have authority to establish procedures and to enforce regulations pertaining to the stormwater system. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-3. Stormwater permit requirement; exemptions. (a) Except as provided herein, a person shall not conduct any land disturbing activity until they have submitted a permit application to the VSMP authority that includes a state VSMP permit registration statement, if such statement is required, and, after July 1, 2014, a stormwater management plan or an executed agreement in lieu of a stormwater management plan, and has obtained VSMP authority approval to begin land disturbance. (b) A Chesapeake Bay Preservation Act land disturbing activity shall be subject to an erosion and sediment control plan consistent with the requirements of chapter 11, a stormwater management plan as outlined under section 31.2-6, the technical criteria and administrative requirements for land disturbing activities outlined in section 31.2-9, and the requirements for the long-term maintenance of control measures, as outlined under section 31.2-12 Portsmouth, Virginia, Code of Ordinances Page 5 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (c) All single-family detached residential land disturbing activities within or outside a common plan of development or sale, do not submit a registration statement. (d) Notwithstanding any other provisions of this article, the following activities are exempt, unless otherwise required by federal law: (1) Permitted surface or deep mining operations and projects, or oil and gas operations and projects conducted under the provisions of Title 45.1 of the Code of Virginia; (2) Clearing of lands specifically for agricultural purposes and the management, tilling or planting, or harvesting of agricultural, horticultural, or forest crops, livestock feedlot operations, or as additionally set forth by the state board in regulations, including engineering operations as follows: construction of terraces, terrace outlets, check dams, desilting basins, dikes, ponds, ditches, strip cropping, lister furrowing, contour cultivating, contour furrowing, land drainage, and land irrigation; however, this exception shall not apply to harvesting of forest crops unless the area on which harvesting occurs is reforested artificially or naturally in accordance with the provisions of Chapter 11 (§ 10.1-1100 et seq.) of Title 10.1 of the Code of Virginia or is converted to bona fide agricultural or improved pasture use as described in Subsection B of § 10.1-1163 of Article 9 of Chapter 11 of Title 10.1 of the Code of Virginia; (3) Single-family residences separately built and disturbing less than one acre and not part of a larger common plan of development or sale, including additions or modifications to existing single-family detached residential structures, unless the land disturbance is located in the city's Chesapeake Bay Preservation Areas. In the Chesapeake Bay Preservation Areas, single family residences separately built and disturbing less than 2,500 square feet are exempt; (4) Land disturbing activities that disturb less than one acre of land area and not part of a larger common plan of development or sale, except in the Chesapeake Bay Preservation Areas where land disturbing activities less than 2,500 square feet are exempt; (5) Discharge to a sanitary sewer system; (6) Activities under a state or federal reclamation program to return an abandoned property to an agricultural or open land use; (7) Routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original construction of the project. The paving of an existing road with a compacted or impervious surface and reestablishment of existing associated ditches and shoulders shall be deemed routine maintenance if performed in accordance with this subsection; and (8) Conducting land disturbing activities in response to a public emergency where the related work requires immediate authorization to avoid imminent endangerment to human health or the environment. In such situations, the administrator shall be advised of the disturbance within seven days of commencing the land disturbing activity and compliance with the administrative requirements of subsection (a) is required within 30 days of commencing the land disturbing activity. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-4. Stormwater management program established; submission and approval of plans; prohibitions. (a) Pursuant to Code of Virginia § 62.1-44.15:27, a Virginia Stormwater Management Program is hereby established for land disturbing activities in the city, subject to the applicable regulations that specify standards and specifications for VSMPs promulgated by the state board for the purposes set out in section 31.2-2. The city engineer or his designee shall serve as the administrator of the Virginia Stormwater Management Program. Portsmouth, Virginia, Code of Ordinances Page 6 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (b) No VSMP permit shall be issued by the administrator, until the following items have been submitted to and approved by the administrator as prescribed herein: (1) A VSMP permit application that includes a general permit registration statement. (2) An erosion and sediment control plan approved in accordance with chapter 11 of this Code. (3) A stormwater management plan that meets the minimum requirement of section 31.2-6 (4) A stormwater pollution prevention plan that meets the requirements of section 31.2-7 (5) Evidence that general permit coverage has been obtained. (6) The required fees have been paid, pursuant to section 31.2-17, and a reasonable performance bond required, pursuant to section 31.2-18, has been submitted. (7) The permit application and attendant materials and supporting documentation demonstrate that all land clearing, construction, disturbance, land development, and drainage will be done according to the approved permit. (c) No grading, building or other local permit shall be issued for a property unless a VSMP permit has been issued by the administrator. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-5. Stormwater pollution prevention plan; contents of plan. (a) The stormwater pollution prevention plan (SWPPP) must comply with the requirements and general information set forth in Section 9VAC-25-880-70, of Section II [stormwater pollution prevention plan] of the general permit. The SWPPP shall also include the content specified by Section 9VAC-25-87054, as follows: (1) An approved erosion and sediment control plan, an approved stormwater management plan, a pollution prevention plan for regulated land disturbing activities, and a description of any additional control measure necessary to address a TMDL pursuant to subsection (a)(2) of this section. a. An erosion and sediment control plan consistent with the requirements of the Virginia Erosion and Sediment Control Law and regulations must be designed prior to and implemented during construction activities. Prior to land disturbance, this plan must be approved by either the city or the department in accordance with the Virginia Erosion and Sediment Control Law and attendant regulations. b. A stormwater management plan consistent with the requirements of the Virginia Stormwater Management Act and regulations must be designed prior to and implemented during construction activities. Prior to land disturbance, this plan must be approved by the VSMP authority. c. A pollution prevention plan that identifies potential sources of pollutants that may reasonably be expected to affect the quality of stormwater discharges from the construction site and describe control measures that will be used to minimize pollutants in stormwater discharges from the construction site must be developed before land disturbance commences. (2) In addition to the requirement of subsection (a)(1) of this section, if a specific waste load allocation for a pollutant has been established in a TMDL and is assigned to stormwater discharges from a construction activity, additional control measures must be identified and implemented by the operator so that discharges are consistent with the assumptions and requirements of the waste load allocation in a state water control board-approved TMDL. (3) The SWPPP must address the following requirements, to the extent otherwise required by state law or regulations and any applicable requirements of a state permit: Portsmouth, Virginia, Code of Ordinances Page 7 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT a. Control stormwater volume and velocity within the site to minimize soil erosion; b. Control stormwater discharges, including both peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; c. Minimize the amount of soil exposed during construction activities; d. Minimize the disturbance of steep slopes; e. Minimize the sediment discharges from the site. The design, installation and maintenance of erosion and sediment controls must address factors such as the amount, frequency, intensity and duration of precipitation, the nature of resulting stormwater runoff, and soil characteristics, including the range of soil particle sizes expected to be present on the site. f. Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal and maximize stormwater infiltration, unless in feasible; g. Minimize soil compaction and, unless infeasible, preserve topsoil; h. Stabilization of disturbed areas must, at a minimum, be initiated immediately whenever any clearing, grading, excavating, or other earth disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 calendar days. Stabilization must be completed within a period of time determined by the VSMP authority. In arid, semiarid, and drought-stricken areas where initiating vegetative stabilization measures immediately is infeasible, alternative stabilization measures must be employed as specified by the VSMP authority; and i. Utilize outlet structures that withdraw water from the surface, unless infeasible, when discharging from basins and impoundments. (b) The SWPP shall be amended by the operator whenever there is a change in design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants to state waters which is not addressed by the existing SWPPP. (c) The SWPPP must be maintained by the operator at a central location onsite. If an onsite location is unavailable, notice of the SWPPP's location must be posted near the main entrance at the construction site. Operators shall make the SWPPP available for public review in accordance with Section II of the general permit, either electronically or in hard copy. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-6. Stormwater management plan; contents of plans. (a) The stormwater management plan, required in section 31.2-4, must apply the stormwater management technical criteria set forth in section 31.2-9 to the entire land disturbing activity. Individual lots [in] new residential, commercial, or industrial developments shall not be considered separate land disturbing activities. A stormwater management plan that is approved for residential, commercial, or industrial subdivision shall govern the development of the individual parcels, including those parcels developed under subsequent owners. The stormwater management plan shall consider all sources of surface runoff and all sources of subsurface and groundwater flows converted to subsurface runoff, and include the following information: (1) Information on the type and location of stormwater discharges, information on the features to which stormwater is being discharged including surface waters, and the pre-development and post-development drainage areas; (2) Contact information including the name, address, and telephone number of the owner and the tax reference map number and parcel number of the property or properties affected; Portsmouth, Virginia, Code of Ordinances Page 8 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (3) A narrative that includes a description of current site conditions and final site conditions; (4) A general description of the proposed stormwater management facilities and the mechanism through which the facilities will be operated and maintained after construction is complete; (5) Information on the proposed stormwater management facilities, including: a. The type and size of the facilities; b. Location, including geographic coordinates; c. Acre treated; and d. The surface waters into which the facility will discharge. (6) Hydrologic and hydraulic computations, including runoff characteristics; (7) Documentation and calculations verifying compliance with the water quality and quantity requirements of section 31.2-9 (8) A map or maps of the site that depicts the topography of the site and includes: a. All contributing drainage areas; b. Existing streams, ponds, culverts, ditches, wetlands, other water bodies, and floodplains; c. Soil types, forest cover, and other vegetative areas; d. Current land use including existing structures, roads, and locations of known utilities and easements; e. Sufficient information on adjoining parcels to assess the impacts of stormwater from the site on these parcels; f. The limits of clearing and grading, and the proposed drainage patterns on the site; g. Proposed buildings, roads, parking areas, utilities, and stormwater management facilities; and h. Proposed land use with tabulation of the percentage of surface area to be adapted to various uses, including but not limited to, planned locations of utilities, roads and easements. i. All Chesapeake Bay Preservation Area designations of resource protection areas and resource management areas. j. Any other information reasonably necessary for an evaluation of the development activity. (b) If an operator intends to meet the water quality and/or quantity requirements set forth in section 31.29 through the use of off-site compliance options, where applicable, then a letter of availability from the off-site provider must be included. Approved off-site options must be located within the boundary of the city's MS4 and must achieve the necessary nutrient reductions prior to the commencement of the applicant's land disturbing activity except as otherwise allowed by Code of Virginia § 62.1-44.15:35. (c) Elements of the stormwater management plans that include activities regulated under Chapter 4 (§ 54.1-400 et seq.) of Title 54.1 of the Code of Virginia shall be appropriately sealed and signed by a professional registered in the Commonwealth of Virginia pursuant to Article 1 (§ 54.1-400 et seq.) of Chapter 4 of Title 54.1 of the Code of Virginia. (d) A construction record drawing for all permanent stormwater management facilities and any drainage infrastructure that will become public property shall be submitted to the administrator. The construction record drawing shall be appropriately sealed and signed by a professional registered in the Commonwealth of Virginia, certifying that the stormwater management facilities and related drainage infrastructure have been constructed in accordance with the approved plan. (Ord. No. 2014-38, § 2, 5-13-2014 ) Portsmouth, Virginia, Code of Ordinances Page 9 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Sec. 31.2-7. Pollution prevention plan; contents of plans. (a) Pollution prevention plan, required by 9VAC-25-870-56, shall be developed, implemented and updated as necessary and must detail the design, installation, implementation, and maintenance of effective pollution prevention measures to minimize the discharge of pollutants. At a minimum, such measures must be designed, installed, implemented and maintained to: (1) Minimize the discharge of pollutants from equipment and vehicle washing, wheel washwater and other washwaters. Washwaters must be filtered or pass through an approved sediment trapping device prior to discharge; (2) Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste - including from portable toilets, and other materials present on the site to precipitation and to stormwater; and (3) Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures. (b) The pollution prevention plan shall include effective best management practices to prohibit the following discharges: (1) Wastewater from washout of concrete, unless managed by an appropriate control; (2) Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials; (3) Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; and (4) Soaps or solvents used in vehicle and equipment washing. (c) Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, are prohibited unless managed by appropriate sediment filtering controls. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-8. Review of stormwater management plan. (a) The administrator shall review stormwater management plans and shall approve or disapprove a stormwater management plan according to the following: (1) The administrator shall determine the completeness of a plan in accordance with section 31.2-6, and shall notify the applicant, in writing, of such determination, within 15 calendar days of receipt. If the plan is deemed to be incomplete, the above written notification shall contain the reasons the plan is deemed incomplete. (2) The administrator shall have an additional 60 calendar days from the date of the communication of completeness to review the plan, except that if a determination of completeness is not made within the time prescribed in subdivision (1), then the plan shall be deemed complete and the administrator shall have 60 calendar days from the date of submission to review the plan. (3) The administrator shall review any plan that has been previously disapproved, within 45 calendar days of the date of resubmission. (4) During the review period, the plan shall be approved or disapproved and the decision communicated in writing to the person responsible for the land disturbing activity or his designated agent. If the plan is not approved, the reasons for not approving the plan shall be provided in writing. Approval or denial shall be based on the plan's compliance with the requirements of this chapter. Portsmouth, Virginia, Code of Ordinances Page 10 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (5) If a plan meeting all of the requirements of this chapter is submitted and no action is taken within the time provided above in subdivision (2) for review, the plan shall be deemed approved. (b) Approved stormwater plans may be modified as follows: (1) Modifications to an approved stormwater management plan shall be allowed only after review and written approval by the administrator. The administrator shall have 60 calendar days to respond in writing either approving or disapproving such request. (2) The administrator may require that an approved stormwater management plan be amended, within a time prescribed by the administrator, to address any deficiencies noted during inspection. (c) The administrator shall require the submission of a construction record drawing for permanent stormwater management facilities. The administrator may elect not to require construction record drawings for stormwater management facilities for which recorded maintenance agreements are not required pursuant to subsection 31.2-12(b). (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-9. Technical criteria for regulated land disturbing activities. All technical criteria for regulated land disturbing activities are contained in 9VAC-25-870-62 through 9VAC-25-870-99 of the Virginia Stormwater Management Program Permit regulations are hereby adopted and incorporated in this article by reference and made applicable within the city. Such provisions and requirements are hereby adopted and made a part of this chapter as fully as though set forth at length herein. (a) To protect the quality and quantity of [state] water from the potential harm of unmanaged stormwater runoff resulting from land disturbing activities, the City of Portsmouth hereby adopts the technical criteria for regulated land disturbing activities set forth in Part II B of the regulations, as amended, expressly to include 9VAC-25-870-63 [water quality design criteria requirements]; 9VAC-25-870-65 [water quality compliance]; 9VAC-25-870-66 [water quantity]; 9VAC-25-870-69 [offsite compliance options]; 9VAC-25-870-72 [design storms and hydrologic methods]; 9VAC25-870-74 [stormwater harvesting]; 9VAC-25-870-76 [linear development project]; and, 9VAC25-870-85 [stormwater management impoundment structures or facilities], which shall apply to all land disturbing activities regulated pursuant to this chapter, except as expressly set forth in section 31.2-10 (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-10. Grandfathering. (a) Any land disturbing activity shall be considered grandfathered by the VSMP authority and shall be subject to the Part II C technical criteria of the VSMP regulation provided: (1) A proffered or conditional zoning plan, zoning with a plan of development, preliminary or final subdivision plan, preliminary or final site plan, or any document determined by the locality to be the equivalent thereto (i) was approved by the locality prior to July 1, 2012, (ii) provided a layout as defined in 9VAC-25- 870-10, (iii) will comply with the Part II technical criteria of the VSMP regulation, and (iv) has not been subsequently modified or amended in a manner resulting in an increase in the amount of phosphorus leaving each point of discharge, and such that there is no increase in the volume or rate of runoff; (2) A state permit has not been issued prior to July 1, 2014; and (3) Land disturbance did not commence prior to July 1, 2014. Portsmouth, Virginia, Code of Ordinances Page 11 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (b) Locality, state and federal projects shall be considered grandfathered by the VSMP authority and shall be subject to the Part IIC technical criteria of the VSMP regulation provided: (1) There has been an obligation of locality, state or federal funding, in whole or in part, prior to July 1, 2012, or the department has approved a stormwater management plan prior to July 1, 2012; (2) A state permit has not been issued prior to July 1, 2014; and (3) Land disturbance did not commence prior to July 1, 2014. (c) Land disturbing activities grandfathered under subsections (a) and (b) of this section shall remain subject to the Part IIC technical criteria of the VSMP regulation for one additional state permit cycle. After such time, portions of the project not under construction shall become subject to any new technical criteria adopted by the board. (d) In cases where governmental bonding or public debt financing has been issued for a project prior to July 1, 2012, such project shall be subject to the technical criteria of Part II C. (e) Nothing in this section shall preclude an operator from constructing to a more stringent standard at his discretion. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-11. Variances. (a) The administrator may grant variances to the technical requirements of Part II B or Part C of the regulations, provided that (i) the variance is the minimum necessary to afford relief, (ii) reasonable and appropriate conditions are imposed so that the intent of the Act, the regulations, and this chapter are preserved, (iii) granting the variance will not confer any special privileges that are denied in other similar circumstances, and (iv) exception requests are not based upon conditions or circumstances that are self-imposed or self-created, (v) the variance will not substantially increase the flow rate of stormwater runoff, (vi) the variance will not have an adverse impact on a wetland, channel, water body or upstream and/or downstream of a receiving body of water, (vii) the variance will not contribute to the degradation of water quality, and (viii) the variance will not be of substantial detriment to adjacent property or adversely affect the character of adjoining neighborhoods. Economic hardship alone is not sufficient reason to grant a variance. (1) No variance to the requirement that the land disturbing activity obtain the required VSMP permit shall be given by the administrator, nor shall the administrator approve the use of a BMP not found on the Virginia Stormwater BMP Clearinghouse Website, or any other control measure not duly approved by the administrator. (2) No variance to requirements for phosphorous reductions shall be allowed unless offsite options otherwise permitted pursuant to 9VAC-25-870-69 have been considered and found not available. (b) Nothing in this section shall preclude an operator from constructing to a more stringent standard at their discretion. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-12 Long-term maintenance of permanent stormwater facilities. (a) The administrator shall require the provision of long-term responsibility for and maintenance of stormwater management facilities and other techniques specified to manage the quality and quantity of runoff. Such requirements shall be set forth in an instrument recorded in the local land records prior to general permit termination or earlier as required by the administrator and shall at a minimum: Portsmouth, Virginia, Code of Ordinances Page 12 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (1) Be submitted to the administrator for review and approval prior to the approval of the stormwater management plan; (2) Be stated to run with the land; (3) Provide for all necessary access to the property for purposes of maintenance and regulatory inspections; (4) Provide for inspections and maintenance and the submission of inspection and maintenance reports to the administrator; and (5) Be enforceable by all appropriate government parties. (b) At the discretion of the administrator, such recorded instruments need not be required for stormwater management facilities designed to treat stormwater runoff primarily from an individual residential lot on which they are located, provided it is demonstrated to the satisfaction of the administrator that future maintenance of such facilities will be addressed through an enforceable mechanism. (c) If a recorded instrument is not required pursuant to subsection 31.2-12(b), the administrator shall develop a strategy for addressing maintenance of stormwater management facilities designed to treat stormwater runoff primarily from an individual residential lot on which they are located. Such a strategy may include periodic inspections, homeowner outreach and education, or other method targeted at promoting the long-term maintenance of such facilities. Such facilities shall not be subject to the requirement for an inspection to be conducted by the administrator. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-13. Monitoring and inspections. (a) The administrator shall inspect the land disturbing activity during construction for: (1) Compliance with the approved erosion and sediment control plan; (2) Compliance with the approved stormwater management plan; (3) Development, updating, and implementation of a pollution prevention plan; (4) Development and implementation of any additional control measures necessary to address a TMDL. (b) The administrator may, at reasonable times and under reasonable circumstances, enter any establishment or upon any property, public or private, for the purpose of obtaining information or conducting surveys or investigations necessary in the enforcement of the provisions of this chapter. (c) In accordance with a performance bond with surety, cash escrow, letter of credit, any combination thereof, or such other legal arrangement or instrument, the administrator may also enter any establishment or upon any property, public or private, for the purpose of initiating or maintaining appropriate actions which are required by the permit conditions associated with a land disturbing activity when a permittee, after proper notice, has failed to take acceptable action within the time specified. (d) Pursuant to Code of Virginia § 62.1-44.15:40, the administrator may require every VSMP permit applicant or permittee, or any such person subject to VSMP permit requirements under this chapter, to furnish when requested such application materials, plans, specifications, and other pertinent information as may be necessary to determine the effect of his discharge on the quality of state waters, or such other information as may be necessary to accomplish the purposes of this chapter. (e) Post-construction inspections of stormwater management facilities required by the provisions of this chapter shall be conducted by the administrator pursuant to the city's adopted and state board Portsmouth, Virginia, Code of Ordinances Page 13 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT approved inspection program, and shall occur, at minimum, at least once every five (5) years except as may otherwise be provided for in section 31.2-12 (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-14. Hearings. (a) Any permit applicant or permittee, or person subject to the requirements of this chapter, aggrieved by any action of the city taken without a formal hearing, or by inaction of the city, may demand in writing a formal hearing by the stormwater appeals board, which is designated by the city council as its appeals body, provided a petition requesting such hearing is filed with the administrator within 30 days after notice of such action is given by the administrator. (b) The hearings held under this section shall be conducted by the stormwater appeals board at a time and place authorized by the stormwater appeals board. (c) A verbatim record of the proceedings of such hearings shall be taken and filed with the stormwater appeals board. Depositions may be taken and read as in actions at law. (d) The stormwater appeals board or its designated member, as the case may be, shall have power to issue subpoenas and subpoenas duces tecum, and at the request of any party shall issue such subpoenas. The failure of a witness without legal excuse to appear or to testify or to produce documents shall be acted upon by the stormwater appeals board, whose action may include the procurement of an order of enforcement from the circuit court of the City of Portsmouth. Witnesses who are subpoenaed shall receive the same fees and reimbursement for mileage as in civil actions. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-15. Appeals. Within 30 days of the decision of the stormwater appeals board, a decision entered pursuant to section 31.2-14 may be appealed to the Circuit Court of the City of Portsmouth. The petition for appeal shall be filed in writing within 30 days of the date of the decision, determination or action, shall state clearly the grounds on which the appeal is based. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-16. Enforcement. (a) If the administrator determines that there is a failure to comply with the VSMP permit conditions or determines there is an unauthorized discharge, notice shall be served upon the permittee or person responsible for carrying out the permit conditions by any of the following: verbal warnings and inspection reports, notices of corrective action, consent special orders, and notices to comply, Written notices shall be served by registered or certified mail to the address specified in the permit application or by delivery at the site of the development activities to the agent or employee supervising such activities. (1) The notice shall specify the measures needed to comply with the permit conditions and shall specify the time within which such measures shall be completed. Upon failure to comply within the time specified, a stop work order may be issued in accordance with subsection (a)(2) below or the permit may be revoked by the administrator. (2) If a permittee fails to comply with a notice issued in accordance with this section within the time specified, the administrator may issue a stop work order requiring the owner, permittee, person responsible for carrying out an approved plan, or the person conducting the land disturbing activities without an approved plan or required permit to cease all land disturbing activities until Portsmouth, Virginia, Code of Ordinances Page 14 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT the violation of the permit has ceased, or an approved plan and required permits are obtained, and specified corrective measures have been completed. Such orders shall become effective upon service on the person by certified mail, return receipt requested, sent to his address specified in the land records of the locality, or by personal delivery by an agent of the administrator. However, if the administrator finds that any such violation is grossly affecting or presents an imminent and substantial danger of causing harmful erosion of lands or sediment deposition in waters within the watersheds of the commonwealth or otherwise substantially impacting water quality, he may issue, without advance notice or hearing, an emergency order directing such person to cease immediately all land disturbing activities on the site and shall provide an opportunity for a hearing, after reasonable notice as to the time and place thereof, to such person, to affirm, modify, amend, or cancel such emergency order. If a person who has been issued an order is not complying with the terms thereof, the administrator may institute a proceeding for an injunction, mandamus, or other appropriate remedy in accordance with subsection 31.2-16(c). (b) In addition to any other remedy provided by this chapter, whenever the permittee has failed to comply with a notice to comply issued under this section, the administrator may direct the appropriate city official to suspend or revoke other city-issued licenses and permits that may be reasonably associated with the proper execution of the approved plan. Such suspension or revocation shall remain in effect until the permittee becomes compliant with the approved plan and has satisfactorily addressed the issues identified in the written notice, as determined by the administrator. Such other permits or licenses shall include, but are not necessarily limited to, building permits, zoning permits and clearances, health permits, land disturbing permits, right- of-way permits, et al. In the event of a revocation of a land disturbing permit or the issuance of a stop work order, the owner or applicant shall be required to re-apply for the land disturbance permit and submit the required land disturbance permit fees based on the fee schedule that was in place at the time of the revocation or issuance, respectively. In addition, the site must be in compliance and pass a site inspection conducted by the city's VSMP inspectors before the new land disturbance permit will be issued. (c) Any person violating or failing, neglecting or refusing to obey any rule, regulation, ordinance, order, approved standard or specification, or any permit condition issued by the administrator may be compelled in a proceeding instituted in the circuit court of the City of Portsmouth by the city to obey same and to comply therewith by injunction, mandamus, or other appropriate remedy. (d) Any person who violates any provision of this chapter or who fails, neglects or refuses to comply with any order of the administrator, shall be subject to a civil penalty not to exceed $32,500.00 for each violation within the discretion of the court. Each day of violation of each requirement shall constitute a separate offense. (1) Violations for which a penalty may be imposed under this subsection shall include but not be limited: a. No state permit registration; b. No SWPPP; c. Incomplete SWPPP; d. SWPPP not available for review; e. No approved erosion and sediment control plan; f. Failure to install stormwater BMP's or erosion and sediment controls; g. Stormwater BMPs or erosion and sediment controls improperly installed or maintained; h. Operational deficiencies; i. Failure to conduct required inspections; j. Incomplete, improper, or missed inspections; and Portsmouth, Virginia, Code of Ordinances Page 15 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT k. Discharges not in compliance with the requirements of Section 9VAC-25-880-70 of the general permit. (2) The administrator may institute proceedings for collection of the civil penalty and the action may be prosecuted in the appropriate court. (3) In imposing a civil penalty pursuant to this subsection, the court may consider the degree of harm caused by the violation and also the economic benefit to the violator from noncompliance. (4) Any civil penalties assessed by a court as a result of proceedings initiated by the city shall be paid into the treasury of the City of Portsmouth to be used for the purpose of minimizing, preventing, managing, or mitigating pollution of the waters of the locality and abating environmental pollution therein. (c) Notwithstanding any other civil or equitable remedy provided by this section or by law, any person who willfully or negligently violates any provision of this chapter, any order of the administrator, any condition of a permit, or any order of a court shall be guilty of a misdemeanor punishable by confinement in jail for not more than 12 months or a fine of not less than $2,500.00 nor more than $32,500.00, or both. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-17. Fees. (a) Applicant shall be required to pay the City of Portsmouth's applicable land disturbance permit fees, site plan review fees, and site inspection fees. (b) All fees, including fees for permit issuance, modification or transfer or registration statements, and permit maintenance fees, are provided in the City of Portsmouth Engineering Department's Schedule of Fees. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-18. Performance bonds. Prior to the issuance of any permit, the applicant may be required to submit a reasonable performance bond with surety, cash escrow, letter of credit, any combination thereof, or such other legal arrangement acceptable to the city attorney, to ensure that measures could be taken by the City of Portsmouth at the applicant's expense should he fail, after proper notice, within the time specified to initiate or maintain appropriate actions which may be required of him by the permit conditions as a result of his land disturbing activity. If the city takes such action upon such failure by the applicant, the city may collect from the applicant for the difference should the amount of the reasonable cost of such action exceed the amount of the security held, if any. Within 60 days of the completion of the requirements of the permit conditions, such bond, cash escrow, letter of credit or other legal arrangement, or the unexpended or unobligated portion thereof, shall be refunded to the applicant or terminated. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-19. Virginia Stormwater Management Handbook and BMP clearinghouse. The Virginia Stormwater Management Handbook and the BMP Clearinghouse, including all future amendments thereto are hereby adopted and incorporated by reference. Whenever the handbook and the BMP Clearinghouse conflict, the more stringent shall control. (Ord. No. 2014-38, § 2, 5-13-2014 ) Portsmouth, Virginia, Code of Ordinances Page 16 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT Sec. 31.2-20. Severability. Each separate provision of this chapter is deemed independent of all other provisions herein so that if any provision or provisions of this chapter be declared invalid, all other provisions shall remain valid and enforceable. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-21. Enforcement. This chapter shall become effective on July 1, 2014. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-22. Classification of properties. (a) For the purpose of determining the stormwater management fee, all properties in the city shall be classified by the administrator into one of the following categories: (1) Residential. (2) Nonresidential. (3) Undeveloped. (4) Exempt. (b) The administrator shall determine impervious and semi-pervious area for nonresidential property accounts utilizing aerial planimetric data, city real estate assessment data, and other data acquired by office staff. The administrator may require additional information from the owner as necessary to make such a determination. (c) The stormwater management fee for vacant developed property, both residential and nonresidential, shall be the same as that for occupied property of the same class. (d) Undeveloped property shall be exempt from the stormwater management fee. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-23. Pollution of the stormwater system. (a) Prohibited acts: (1) It shall be unlawful for any person to put, or allow to be put, any process water, wastewater, filth, animal or vegetable matter, chips, shavings or any other substance in the stormwater system, or do any injury thereto, or in any manner pollute the stormwater system. (2) It shall be unlawful for any person to pour or discharge, or to permit to be poured or discharged, or to deposit, so that the same may be discharged, any gasoline, oil waste, antifreeze, or other fluids from vehicles or motor vehicles or equipment into any stormwater system. (3) It shall be unlawful for any commercial, industrial or manufacturing entity to discharge process water or unpermitted discharge into any stormwater system. (4) It shall be unlawful for any person to throw, place or deposit, or cause to be thrown, placed or deposited, in any gutter, ditch, storm drain or other drainage area in the city anything that impedes or interferes with the free flow of stormwater therein. Portsmouth, Virginia, Code of Ordinances Page 17 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (b) Penalty for violation. Unless otherwise specified, any person or entity who shall violate any of the provisions of this chapter, or any regulation promulgated pursuant to authority granted by this chapter, shall be guilty of a misdemeanor and shall be subject to a fine not exceeding $1,000.00 or up to 30 days imprisonment for each violation or by both fine and imprisonment. Any such person shall furthermore be liable for all damage, loss and/or expense suffered or incurred by the city as a result of such violation, and the city may elect to pursue either or both civil and criminal remedies. (c) Remediation and removal. In addition to any penalty imposed for a violation of subsections (a)(1) through (4) of this section, the court hearing the case may direct the person responsible for the discharge or deposit, and each day's default in such remediation or removal shall constitute a violation of and a separate offense under this section. (d) Enforcement. The administrator and/or his designee, police officers, and fire marshals are hereby designated and authorized to enforce the provisions of this chapter. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-24. Notice to correct drainage. (a) Whenever the administrator shall find that a tract of land is inadequately drained, or that there is an obstruction to a culvert, drain or other natural or manmade watercourse that interferes with stormwater naturally flowing therein or that such culvert, drain or watercourse is of insufficient capacity to reasonably accommodate the flow of stormwater, the administrator or a person designated by the administrator shall notify the owner or person having possession, charge or management of such land to remove the obstruction or provide the necessary drainage. (b) The owner or person having possession, charge or management of the land in question must comply with the administrator's order within the time specified in the notice. Failure to comply with such order shall constitute a violation of this chapter. In addition to any penalty imposed for each violation, the court hearing the case may direct the person responsible for the obstruction to remediate or correct the obstruction, and each day's default in such remediation or correction shall constitute a violation of and a separate offense under this section. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-25. Authority. The city is authorized by the provisions of Code of Virginia § 15.2-100 et seq. and the Constitution of the Commonwealth of Virginia to construct, reconstruct, improve and extend the stormwater system; establish utility charges; and to issue bonds and other debts as needed to finance in whole or in part the costs of the system and to establish rents, fees and charges for the services and facilities provided by the system. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-26. Stormwater utility fees. (a) The stormwater utility fees set out in Appendix A to this Code are hereby authorized for all utility customers in the city. Rates will be based upon equivalent residential units (ERU). An ERU will be the equivalent of 1,877 square feet of impervious area which will include all buildings, structures and other impervious and semi-pervious surfaces which contribute to stormwater runoff. The minimum monthly charge shall be equal to one ERU. The number of ERU's will be determined by the administrator of public works or his designee. (b) All payments for this service shall be the responsibility of the owner. Portsmouth, Virginia, Code of Ordinances Page 18 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT (c) When new properties are brought into the utility system, fees will accrue commencing with either completion of a frame or slab inspection or upon completion of any construction which contributes impervious surface area where no certificate is issued or required for such construction. (d) In the event of alteration or addition to a nonresidential property which alters the amount of impervious surface area, the stormwater management fees will be adjusted upon either the completion of a frame or slab inspection or upon completion of the construction, whichever occurs first, and the adjustment will be reflected in the next billing cycle. (e) Nonresidential parcels having a total impervious surface area greater than 250,000 square feet shall be assessed on the same basis as parcels of 250,000 square feet, for an interim period which is authorized for up to five years, which period shall expire no later than June 30, 2000, for the purpose of investigating and evaluating the drainage runoff patterns and possible use of regional best management practices (BMPs). (f) Petitions for adjustments to the stormwater fees for residential and nonresidential properties shall be submitted to the city manager or his designee, who shall be given the authority to administer the procedures and standards and review criteria for the adjustment of fees as established herein. Any petition submitted for adjustment to the stormwater fees for a residential or nonresidential property shall be accompanied with a site plan or other such similar scaled drawing. A petition shall also include calculations of the property's impervious and semi-pervious area. The site plan and the calculations shall both be prepared by a professional engineer or land surveyor licensed in the commonwealth and acceptable in format and content to the administrator of public works or his designee. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-27. Late charges. In the event charges are not paid when due, interest thereon shall at that time accrue, at the annual rate of ten percent, until such time as the overdue payment and interest is paid. Charges and interests may be recovered by action at law or suit in equity and shall constitute a lien against the property, ranking on a parity with liens for unpaid taxes. (Ord. No. 2014-38, § 2, 5-13-2014 ) Sec. 31.2-28. Stormwater fund. There shall be established a stormwater fund for the deposit of all fees collected pursuant to this article. Income derived from these charges shall be dedicated special revenue and may be used only for the following: (1) The acquisition by gift, purchase or condemnation of real and personal property, and interest therein, necessary to construct, operate and maintain stormwater control facilities; (2) The cost of administration of such programs; (3) Engineering and design, debt retirement, construction costs for new facilities and enlargement or improvement of existing facilities; (4) Facility maintenance; (5) Monitoring of stormwater control devices; and (6) Pollution control and abatement, consistent with state and federal regulation for water pollution control and abatement. (Ord. No. 2014-38, § 2, 5-13-2014 ) Portsmouth, Virginia, Code of Ordinances Page 19 PART II - CODE Chapter 31.2 STORMWATER MANAGEMENT FOOTNOTE(S): --- (1) --Charter reference— Power of city to levy and collect taxes from purchases of public utility services, § 2.02. (Back) Cross reference— Erosion and sediment control, ch. 11; water, sewers and sewage disposal, ch. 38. (Back) State Law reference— Erosion and sediment control programs, Code of Virginia, § 10.1-562; Chesapeake Bay Preservation Act, Code of Virginia, § 10.1-2100 et seq.; local stormwater management programs, Code of Virginia, § 10.2-603.3; authority to acquire and maintain a stormwater management system, Code of Virginia, § 15.2-2109; regulation of stormwater, Code of Virginia, § 15.2-2114; authority to create a stormwater control authority, Code of Virginia, § 15.2-5102. (Back) Portsmouth, Virginia, Code of Ordinances Page 20