HARKERS ISLAND SANITARY DISTRICT AMENDMENT TO WATER SYSTEM MANAGEMENT PLAN

Transcription

1 HARKERS ISLAND SANITARY DISTRICT AMENDMENT TO WATER SYSTEM MANAGEMENT PLAN WHEREAS, the Harkers Island Sanitary District is a body politic and corporate with jurisdiction over that geographic area known as Harkers Island, North Carolina; and WHEREAS, the primary focus of the District's governing board at this time is on potable water to residents and fire fighting capabilities; and WHEREAS, there are two or more water systems operating on the island that provide potable water, including a system owned and operated by the District; and WHEREAS, the District s governing board has considered engineering reports on recommendations for standards for all water systems operating on the island and the ability of those water systems to provide not only adequate flows of potable water, but also adequate fire hydrants and water flow to those hydrants in order that the firefighting authorities serving the island will have adequate water supplies to effectively suppress and extinguish fires; and WHEREAS, not all properties on the island are currently served with water systems that have adequate fire hydrants and water flow to those hydrants leaving those properties and occupants of buildings on those properties at heightened risk of damage, injury, and/or death; and WHEREAS, the governing board of the District held public hearings on December 4, 2014 concerning the proposed adoption of An Ordinance Establishing Design Specifications for Potable Water Systems, a copy of which is attached hereto as Exhibit A, and concerning the proposed adoption of An Ordinance Requiring Mandatory Water Connection for New Construction and Under Certain Other Circumstances, a copy of which is attached as Exhibit B; and WHEREAS, following the public hearings the governing board found the adoption of those ordinances to be in the public interest and adopted the same; and WHEREAS, the governing board of the District is of the belief that extending District water mains throughout the island is the most practical means of providing fire hydrants and fire flow to those areas with inadequate service in order for all properties and occupants on the island to have equal protection against fires; and WHEREAS, the District has previously filed a Water System Management Plan ("WSMP") with the North Carolina Department of Environment and Natural Resources, Division of Water Resources ("DWR"), pursuant to North Carolina General Statute 130A-60 and 15A NCAC 18C.0307; and WHEREAS, the District would like for the above described ordinances, and the goal of extending District water mains throughout the island, to be included in its WSMP; NOW, THEREFORE, pursuant to NCGS 130A-60(a) the Harkers Island Sanitary District does petition the North Carolina Department of Environment and Natural Resources, Division of Water Resources, to approve and include in the District's Water System Management Plan the following:

2 2 1. An Ordinance Establishing Design Specifications for Potable Water Systems, a copy of which is attached hereto as Exhibit A, 2. An Ordinance Requiring Mandatory Water Connection for New Construction and Under Certain Other Circumstances, a copy of which is attached as Exhibit B, and 3. The goal of the Harkers Island Sanitary District to extend, throughout the island, water mains of sufficient size and with sufficient flow to support fire hydrants for the proper and efficient suppression and extinguishment of fires with such water main extensions being paid for through a property tax in the nature of a fire district tax or general ad valorem property tax. These additions to the District s WSMP will be included under the section on Policies. The District's administrative staff is authorized to file such amendments to the WSMP with DWR in such format as requested by DWR.

3 HARKERS ISLAND SANITARY DISTRICT AN ORDINANCE REQUIRING MANDATORY WATER CONNECTION FOR NEW CONSTRUCTION WHEREAS, Harkers Island Sanitary District (the "District") was established under the provisions of N.C.G.S. 130A-55; and WHEREAS, the District owns and operates a potable water system that is available for many properties within the District's service area; and WHEREAS, the District continues to expand the availability of the water system; and WHEREAS, N.C.G.S. 130A-55(16) (a) authorizes sanitary districts to require mandatory connection to water systems operated by such districts for the promotion and protection of the public health; NOW, THEREFORE, BE IT ORDAINED and resolved by the Harkers Island Sanitary District Board of Directors that the following requirements are established for mandatory connection to the District's water system: Section 1. Mandatory Connection a. New Construction - Single family homes and commercial establishments for one business On existing tax parcels of land, each new single family home, and each new commercial establishment, is required to connect to the District's water system if (1) there is a District-owned water main within 200 feet of the parcel, or (2) the District agrees to extend a line to the property line. Application for service is required at the time of application for a building permit to the Carteret County Building Inspector's Office. Connection is required before a certificate of compliance is issued by the building inspector's office. b. Newly placed manufactured homes on single parcels All manufactured homes placed on existing tax parcels of land not classified as manufactured home parks shall be required to connect to the District's water system if (1) there is a Districtowned water main within 200 feet of the parcel, or (2) the District agrees to extend a line to the property line. Application for service is required at the time of application for a manufactured home permit to the Carteret County Building Inspector's Office. Connection is required before a certificate of occupancy is issued by the building inspector's office. c. Multi-family and multiple commercial projects. The developers of all multi-family residential projects (such as condominiums, apartments, and townhouses) all recreational vehicle parks, all manufactured home parks, all multiple unit commercial projects (where separate units are available for sale, lease, or occupation), and any and all other developments where multiple units are constructed or located on one tax parcel of land, are required to provide potable water service infrastructure within the development in accordance with District specifications for such developments, and when (1) any part of the boundary of the development is within the distances shown on Table 1 below (subsection d below) to an existing District water main adequate to serve

4 the project, or (2) the District agrees to extend a line to the property line, to connect such development to the District's water system prior to the conveyance, leasing, or licensing of the first unit therein. When determining the number of units in a development, the greater of (1) all units in any sketch plan for the division including all phases submitted to Carteret County, or (2) the number of units in the plat(s) for the project submitted to Carteret County, shall be determinative. d. Table 1. Number of Dwelling Units or Commercial Distance to District's Water System Units feet or less feet or less feet or less ,000 feet or less 101 or more 1,500 feet or less e. Provisions applicable to all mandatory connections. i. The terms of connection to the District's water system, including fees, shall be according to the District's rules for connection at the time of application for connection. ii. iii. iv. Tax parcels are determined by the Carteret County Tax Office and are shown on the County's Geographic Information System ("GIS") maps. The definitions in Carteret County's ordinances are incorporated herein unless the context of this Ordinance requires a different definition. Once a building or manufactured home is connected to the District's water system, it must remain so connected and receive its sole source of potable water from the District. v. For buildings and manufactured homes that are required to connect to the District's water system, the tax parcel on which they are located may have one or more private water wells for non-human consumption for such things as irrigation and swimming pools as long as such wells conform to the ordinances and regulations of Carteret County and its agencies, including the Carteret County Health Department, and the statutes and regulations of the State of North Carolina and its agencies. vi. The applicant for water service shall be responsible for the installation, maintenance and replacement of all service lines and mains, and the costs thereof, from existing District mains to applicant's building, manufactured home, or project and for all costs of connection of such lines and mains to the District's mains. All such service lines and mains will be installed in accordance with best engineering practices and in accordance with applicable statutes and regulations, including the regulations of the District. Prior to or after installation, should applicant wish for such lines and mains to become District lines or mains, the applicant and District 2

5 will attempt to determine terms by which applicant may transfer ownership to the District Section 2. Mandatory Connection Exemptions The mandatory connection required by this Ordinance does not apply in the following circumstances: a. To existing buildings and manufactured homes as of the date of adoption of this Ordinance b. To a tax parcel with an existing private potable well thereon, and to structures constructed thereon, as long as the tax parcel is not subdivided or converted to multifamily use or multiple unit commercial use. If a tax parcel has an existing potable water well and such well fails, the owner is permitted to drill a new well and to connect existing structures thereon to the new well. If the parcel has no improvements, but an existing potable well thereon fails, the owner may drill a new well and construct a new single family residential unit or a single commercial unit thereon and connect such unit to the well. c. The District determines that service is not available. d. Special purpose uses not needing potable water (i.e., cemeteries, etc.) e. An easement for extending water service to a tax parcel is not available or cannot be obtained either by the owner of the parcel or the District. Documentation of good faith effort to secure an easement will be required prior to qualifying for this exemption. f. Potable water service is being provided to the building or manufactured home by a public utility regulated by the North Carolina Utilities Commission pursuant to Chapter 62 of the General Statutes Section 3. Severability If any provision, paragraph, word, section or article of this Ordinance is invalidated by any court of competent jurisdiction, the remaining provisions, paragraphs, words, and sections, shall not be affected and shall continue in full force and effect. Section 4. Notice of Violation Any owner of property subject to this Ordinance, including a developer, shall be given notice by the District of his failure to comply with this Ordinance and shall be given thirty (30) days to remedy the non-compliance. If said owner, including a developer, fails to remedy its noncompliance with this Ordinance in the time required by said Notice, then the District shall take enforcement actions in accordance with this Ordinance. Section 5. Enforcement a. The District may take civil action against any violator of this Ordinance to compel compliance herewith, or to enjoin or abate any unlawful activity or condition, or for damages. 3

6 b. Any violation of any provision of this Ordinance which is also a criminal violation under State law may be prosecuted under the State law. c. Any violation of this Ordinance which is not a violation of State law shall be a Class 1 misdemeanor. Each day a violation exists is a separate offense. Section 7. Effective date 4

7 HARKERS ISLAND SANITARY DISTRICT AN ORDINANCE ESTABLISHING DESIGN SPECIFICATIONS FOR POTABLE WATER SYSTEMS Change WHEREAS, Harkers Island Sanitary District (the "District") was established under the provisions of N.C.G.S. Section 130A-55; and WHEREAS, the availability of clean potable water in the district promotes the public health and welfare; and WHEREAS, fire hydrants, and adequate water flow to the hydrants, within a reasonable distance of improved property dramatically assists fire fighters in extinguishing fires which promotes the public safety and better protects lives and property; and WHEREAS, various water systems now exist within the District's jurisdiction, but not all water systems either provide fire hydrants or sufficient water flow to properly serve fire hydrants; and WHEREAS, the lands within the jurisdiction of the District are not fully developed, and at times new subdivisions as well as additions to existing subdivisions are approved and developed and extension of potable water service to existing parcels is requested, and and WHEREAS, re-development within existing subdivisions and existing parcels of land is possible; WHEREAS, the District finds the health, welfare, and safety of persons and property within the jurisdiction of the District will be promoted by the establishment of minimum standards for potable water systems that serve multiple consumers in order to provide consistency in the domestic potable water supply and for consistency in the water supply capacity for sustained fire hydrant flow; and WHEREAS, such design and construction requirements and specifications promote the public health and safety benefits of potable water by regulating, among other things, the materials to be used for pipes, the minimum size of pipes and mains, the lateral separation of sewers and water mains, standards for valves, location of fire hydrants, the quantity of water charging the mains and pipes, and the water pressure, therein; and WHEREAS, these design and construction requirements and specifications are consistent with nationally recognized standards and with applicable state and county rules and ordinances; and WHEREAS, N.C.G.S. Sections 130A-55(1) and (7) authorize sanitary districts to adopt rules necessary for the proper functioning of the district; and WHEREAS, it is the goal of the District to install water mains in all currently developed areas of the island in order to provide fire hydrants and fire flow throughout the island, but to make such installations in a manner that is not a financial burden on the District's existing water system customers; NOW, THEREFORE, BE IT ORDAINED and resolved by the Harkers Island Sanitary District Board of Directors that:

8 Section 1. Harkers Island Design Specifications. The "Harkers Island Design Specifications" set forth in Exhibit A (referred to herein as the "Design Specifications") are adopted as the minimum standards for water systems on Harkers Island. Section 2. New subdivisions. a. Each developer of each new subdivision on Harkers Island is required to install potable water system infrastructure within the subdivision in accordance with the Design Specifications and to either (1) connect said infrastructure to an existing potable water supply system that will provide the subdivision with the flow of potable water, water storage capacity, and fire flow consistent and compliant with the Design Specifications and the current edition of the North Carolina Fire Code, or (2) to provide for wells, storage capacity, flow of potable water and fire flow consistent and compliant with the Design Specifications within the subdivision. If the developer chooses option 2, he will ensure that the water system, and its operation, is fully compliant with all applicable laws and regulations regarding potable water systems and the current edition of the North Carolina Fire Code. b. Every lot in a new subdivision is required to be connected to the potable water system installed in the subdivision and to use the water there from as the sole source of potable water. Lots, however, may use private wells for irrigation and swimming pools when such wells are compliant with state and local laws and regulations. Section 3. Additions to Existing Subdivisions. a. Each developer of each new addition to an existing subdivision on Harkers Island is required to install potable water system infrastructure within the addition and to connect such infrastructure to an existing water system, or to a system constructed by the developer, according to the requirements of Section 2 above. b. Every lot in a new addition to an existing subdivision is required to be connected to the potable water system installed in the addition and to use the water there from as the sole source of potable water. Lots, however, may use private wells for irrigation and swimming pools when such wells are compliant with state and local laws and regulations. Section 4. New Subdivisions and Additions to Existing Subdivisions. As referenced in Sections 2 and 3 above "new subdivisions" and "new additions to an existing subdivision" mean subdivisions and/or additions to existing subdivisions that receive final plat approval from Carteret County after the date of adoption of this ordinance. Section 5. Review. a. Each developer of a new subdivision, or an addition to an existing subdivision, on Harkers Island shall submit his proposed plans and specifications for the potable water system infrastructure required in this ordinance to the governing board of the District prior to installation thereof. Such plans and specifications can be delivered to the District at either of the following addresses: c/o Carteret Craven Electric, 849 Island Road, Harkers Island, NC, 28531, or c/o Carteret Craven Electric, 1300 Highway 24, P.O. Box 1490, Newport, NC b. Within 31 days after receipt, the governing board of the District will review such plans and specifications for consistency with the minimum standards established in this Ordinance, and will report its findings to the developer and the Carteret County Planning and Inspections Department. c. If the governing board determines that the plans and specifications do not meet the minimum standards established in this Ordinance, it will report the deficiencies to the developer and the Carteret County Planning and Inspections Department, and the developer must revise such 2

9 plans and specifications and resubmit the same to the District governing board for further consideration. This process will continue until the developer has submitted plans and specifications that are complaint with this Ordinance. Section 6. Severability If any provision, paragraph, word, section or article of this Ordinance is invalidated by any court of competent jurisdiction, the remaining provisions, paragraphs, words, and sections, shall not be affected and shall continue in full force and effect. Section 7. Notice of Violation Any owner of property subject to this Ordinance, including a developer, shall be given notice by the District of his failure to comply with this Ordinance and shall be given thirty (30) days to remedy the non-compliance. If said owner, including a developer, fails to remedy its noncompliance with this Ordinance in the time required by said Notice, then the District shall take enforcement actions in accordance with this Ordinance. Section 8. Enforcement a. The District may take civil action against any violator of this Ordinance to compel compliance herewith, or to enjoin or abate any unlawful activity or condition, or for damages. b. Any violation of any provision of this Ordinance which is also a criminal violation under State law may be prosecuted under the State law. c. Any violation of this Ordinance which is not a violation of State law shall be a Class 1 misdemeanor. Each day a violation exists is a separate offense. Section 9. Effective date 3

10 EXHIBIT A HARKERS ISLAND DESIGN SPECIFICATIONS The purpose of the Harkers Island Design Specifications is to establish the minimum requirements consistent with nationally recognized standards for providing domestic potable water and fire flow. The specifications provide consistency and promote the general welfare for the inhabitances of Harkers Island. All potable water main extensions within the service boundary of the Harkers Island Sanitary District will be required to adhere to these specifications in both design and construction WATER PIPE MATERIALS Distribution mains shall be ductile iron, PVC, plastic or other material designed for potable water system service and shall be the appropriate AWWA standards, section C, or NSF Standards No. 14 and No. 15, which is adopted by reference in accordance with G.S. 150B-14(c) or approved equal standards. The pressure rating class of the pipe shall be in excess of the maximum design pressure within its section of the water distribution system. The quality of pipe to be used shall be stated in the project specifications SIZE OF THE WATER MAINS Water distribution mains shall be sized to provide at a minimum, sustained fire hydrant flow of 500 gallons per minute while maintaining 20 psi residual pressure at all locations through the distribution system. Water mains shall not be less than two-inch standard nominal diameter. Fire hydrants shall not be installed on water mains of less than six inches diameter NUMBER OF RESIDENCES ON A WATER MAIN No more than 20, or the equivalent of 20 residences shall be connected to a two-inch diameter water line, unless the main is looped or otherwise supplied from two connections with mains of adequate capacities. A looped two-inch main shall serve no more than 40 residences, or the equivalent water demand of 40 residences. A two-inch diameter main shall not exceed 1000 feet in length DEAD-END WATER MAINS Where installation of dead-end water mains cannot be avoided, a hydrant or a valve of adequate size for flushing shall be installed at the terminal end of the line. The flush valves shall have an above-ground discharge and shall be protected from contamination PIPE LAYING Trenching, pipe laying, and backfilling shall be accomplished in a manner to prevent damage and mis-alignment of the pipe. Water mains shall be buried to a depth below the frost line or to a depth sufficient to provide a minimum of 30 inches cover, whichever is greater TESTING NEW WATER MAINS New water mains shall be tested for leakage and any necessary repairs and re-testing shall be 4

11 accomplished as specified in AWWA standards FIRE FLOW AND HYDRANTS The capacity of the water supply must be capable of providing at a minimum, sustained fire hydrant flow of 500 gallons per minute while maintaining 20 psi residual pressure at all locations through the distribution system. Accessible fire hydrants for the purpose of fire suppression shall be required on extensions of water distribution mains. The location of the fire hydrants shall meet the following requirements: 1. The average spacing between hydrants shall be 500 feet (Exception: on dead-end streets where average spacing shall be reduced by 100 feet). 2. Minimum distance from any point on street or road frontage to a hydrant shall be 250 feet (Exception: on dead-end streets distance shall be reduced by 50 feet). 3. Where new water mains are extended along streets where hydrants are not needed for protection of structures or similar fire problems, fire hydrants shall be provided at spacing not to exceed 1,000 feet to provide for transportation hazards. 4. Where streets are provided with median dividers which cannot be crossed by fire fighters pulling hose lines, hydrant spacing shall average 500 feet on each side of the street and be arranged on an alternating basis. 5. The fire chef is authorized to increase the required number of hydrants and decrease spacing requirements where conditions indicate an unusual susceptibility to group fires. Fire hydrants shall conform to AWWA C502 and to the following requirements: 1. Nozzles: Two (2) 2-1/2-inch hose and One (1) 4-1/2-inch pumper connections. 2. Nozzle threads: National Fire Protection Association (NFPA} for National (American) Standard Fire Hose Coupling Screw Threads. 3. Main valve diameter: For a 8 pipe and larger use 5-1/4- and for 6" pipe and smaller use 4-1/2 inch. 4. Minimum depth of bury: 42-inches. 5. Open counterclockwise. 6. Close with water pressure ring seals 8. Traffic model with frangible sections near the ground line designed to break on impact. 9. Provide extension for hydrant standpipe as required to set centerline of hydrant nozzle a minimum of 15-inches and a maximum of 24-inches WATER STORAGE The water supply shall have sufficient storage to provide for one-half average days supply plus 75,000 gallons of reserve for fire protection. The storage shall be enough to fight a fire for two and a half hours at 500 gallons per minute RELATION OF WATER MAINS TO SEWERS Lateral Separation of Sewers and Water Mains. Water mains shall be laid at least 10 feet laterally from existing or proposed sewers, unless local conditions or barriers prevent a 10-foot lateral separation--in which case: 5

12 1. The water main is laid in a separate trench, with the elevation of the bottom of the water main at least 18 inches above the top of the sewer; or 2. The water main is laid in the same trench as the sewer with the water main located at one side on a bench of undisturbed earth, and with the elevation of the bottom of the water main at least18 inches above the top of the sewer. a. Crossing a Water Main Over a Sewer. Whenever it is necessary for a water main to cross over a sewer, the water main shall be laid at such an elevation that the bottom of the water main is at least 18 inches above the top of the sewer, unless local conditions or barriers prevent an 18 inch vertical separation--in which case both the water main and sewer shall be constructed of ferrous materials and with joints that are equivalent to water main standards for a distance of 10 feet on each side of the point of crossing. b. Crossing a Water Main Under a Sewer. Whenever it is necessary for a water main to cross under a sewer, both the water main and the sewer shall be constructed of ferrous materials and with joints equivalent to water main standards for a distance of 10 feet on each side of the point of crossing. A section of water main pipe shall be centered at the point of crossing VALVES Valves should be installed on all branches from feeder mains and between mains and hydrants according to the following schedule: 1. three valves at x (crosses), 2. two valves at T's (tees), and 3. one valve on single hydrant branch. All valves installed in water distribution systems should meet the appropriate AWWA Standards C (adopted in 1971) C (adopted in 1974) and C (adopted in 1973) of the American Water Works Association, Inc., or approved equal standards THRUST BLOCKING Thrust blocks are required on all unrestrained pressure pipelines at locations where thrust forces caused by internal pressures act upon the sides or ends of pipelines. This includes all unrestrained tees, wyes, reducers, horizontal bends, ascending vertical bends and dead-ends. Thrust blocks may be eliminated in locations where thrust-restraining fittings are utilized along with thrust-restraining pipe joints, provided that thrust restraint systems are designed by the Engineer of Work in accordance with the manufactures instructions. Thrust blocks shall be formed from concrete poured against wetted, undisturbed soil and shall be of sufficient strength to resist the resulting force due to pressure and flow. 6