DRINKING WATER PROGRAM POLICY/PROCEDURE KITSAP COUNTY DRINKING WATER ADEQUACY REQUIREMENTS FOR SUBDIVISIONS AND BUILDING SITE APPLICATIONS

Transcription

1 DRINKING WATER PROGRAM POLICY/PROCEDURE Title: KITSAP COUNTY DRINKING WATER ADEQUACY REQUIREMENTS FOR SUBDIVISIONS AND BUILDING SITE APPLICATIONS Reference: Ordinances (Long Subdivision), 106-B-1990 (Large Lot Subdivision), 108-E-1990 (Short Plat Subdivision) and (BKCHD Rules and Regulations for Private and Public Water Supplies), Chapter (Group A and Group B) WAC, Resolution (CWSP) and EHSB 2929, Chapter 17, Laws of 1990 on Growth Management, Sections 51, 52 and 63 Effective Date: June 30, 1994 Supersedes: N/A Approved: Assistant Director of Environmental Health BACKGROUND: The Washington State Legislature passed Engrossed Substitute House Bill No. 2929, Chapter 17, Laws of 1990 on Growth Management. Section 63 of the bill modifies the State Building Code to require that an applicant for a building permit for any building necessitating potable water must provide evidence of an adequate water supply for the intended use of the building. Sections 51 and 52 of the bill modify state subdivision procedures to require that prior to the approval of a proposed subdivision, the local legislative authority make written findings that appropriate provisions have been made for, among other criteria, potable water supplies for the proposed subdivision.

2 Page 2 PURPOSE AND OBJECTIVE: The purpose of this document is to set forth criteria necessary for verifying adequacy of a water supply for a proposed preliminary and final subdivision or building project. The objective of this policy is to ensure an orderly and uniform process that an individual must adhere to in order to obtain both preliminary and final plat approval and/or Building Site approval when an individual or public water supply is specified. PROCEDURE: I. Criteria required for a drinking water supply in order to obtain Preliminary Subdivision Approval from the Bremerton-Kitsap County Health District (hereafter known as "the District") 1. Individual well on each parcel or one well (private) serving two lots: (a) Each lot must be equal to or greater than one acre in size. (b) The total or potential number of lots being created must comply with the subdivision ordinance for maximum number of lots allowed with individual wells. Example: Under the Large Lot Subdivision Ordinance, individual wells are allowed only when the maximum number of potential lots that could be created within the designated zoning is four or less. 2. Expanding approved public water system: Extension of main only: (a) A non binding letter of water availability from the water system representative is required. (b) No other requirements. Proposed new source and/or other improvements: (a) If a new drinking water source is to be developed, its proposed location together with a 100 foot protective radius is to be shown on a scaled plot plan provided to the District at the time of plat submittal. (b) In the event a new well is to be drilled, as indicated in the previous paragraph, a well site inspection must be made and approved by the District and a protective covenant for the 100 foot well radius must be notarized and recorded with the county auditor. Page 3

3 3. Proposed new water system: (a) A scaled plot plan which identifies the Township, Range and quarter/quarter section of the proposed water supply, must be submitted for the District's use at the time of preliminary plat submittal. (b) The District, upon receiving the application, will follow the procedures of the Coordinated Water System Plan (CWSP) to determine whether existing eligible public water systems are located within a quarter mile of the proposed water supply. (c) The applicant will be directed to the appropriate water system and/or Satellite System Management Agency (SSMA). Depending on the response of the existing utility, a new or remote system may be allowed. (d) If a new or remote system is permitted, the Health District will make a well site inspection. (e) A protective covenant for the 100 foot well radius (200 feet for springs) must be notarized and recorded with the County Auditor. II. Criteria required for a drinking water supply in order to obtain Final Subdivision Approval from the District 1. Individual wells on each parcel or one well (private) serving two lots: (a) No additional requirements. 2. Expanding approved public supply: Extension of main only: (a) For larger systems (100 connections or greater) with an approved five year plan, the District will require the following: (i) A letter from the water purveyor indicating that the main has been installed and pressure tested and meets their approval, or (ii) In lieu of construction final approval may be obtained by posting a bond, setting funds in a an escrow account or by another approved method of funding in the amount of 150% of the estimated cost for completion of the main extension. (b) Water systems with less than 100 connections and/or without an approved five year plan, will require the following: (i) Written approval from the Department of Health (DOH) or the District for the main extension. Page 4

4 (ii) Upon completion of the main extension a copy of a Completion of Construction Report filed with the DOH by the appropriate engineer must be received by the District. (iii) In lieu of construction final approval may be obtained by posting a bond, setting funds in a an escrow account or by another approved method of funding in the amount of 150% of the estimated cost for completion of the main extension. Proposed new source and or other improvements: (a) If additional source is to be developed, a Preliminary Water Right Permit must be obtained from the Department of Ecology (DOE) if proposed usage exceeds 5000 gallons per day (7 connections or greater). Drilling can proceed upon receipt of the Preliminary Water Right Permit. (b) A water system plan and design, which includes all required easements, must be submitted initially to the water utility for their approval and then to either the DOH or the District (dependent on number of connections) for review and approval prior to construction. If a Water Right Permit is required for any new source(s) it must be issued by the DOE before the design approval can be granted by either DOH or the District. (c) Extension of a water main only for systems under 100 connections will require compliance with all requirements of this subsection, with the exception of (a) above. (d) Construction of all improvements may take place upon approval of the water system design. (e) Once improvements are completed, a Completion of Construction Report from the engineer or licensed designer must be submitted to the DOH or the District. (f) Final subdivision approval may be obtained in lieu of construction, excluding development of a proposed source, by posting a bond, setting funds in an escrow account or by another approved method of funding in the amount of 150% of the estimated cost for completion of the water system. Funds may be made payable to either the Health District or the responsible water utility and will be released upon completion of the project. 3. Proposed new water system (a) Since a new water system will require development of a new source, it will be necessary to obtain a Preliminary Water Right Permit from the DOE if the proposed development consists of 7 or more lots or exceeds the 5000 Page 5

5 gallon exemption. A permanent Water Right Permit must be issued prior to water system design approval. (b) All other requirements specified in (2b-f ) above must be completed prior to final subdivision approval. (c) All new water supplies that are not owned and operated as a remote system must enter into a contractual agreement with an approved satellite manager prior to final subdivision approval. III. Criteria required for a drinking water supply in order to obtain a Building Permit that is on an on-site sewage disposal system (Building Site Application, BSA) 1. Individual well on each parcel or one well (private) serving two lots: (a) Well site inspection is made at the time of BSA field inspection for septic system design. (b) A fifty foot covenant is required for two party wells and is required for a single-family well only if the well is sited closer than 50 feet to an adjacent property line. Covenants must be notarized and recorded with the county auditor. (c) Once the well site is granted approval the well can be drilled. A Water Supply Application form is filled out at this time by the Health District stating conditions of the drainfield and water supply. This form along with the BSA is then placed in pending until completion of the well. (d) Upon completion of the well a pump test (one to four hours depending on whether its capacity is less than 7 gpm or greater) is required for determining well capacity. (e) A bacteriological test, along with nitrate, manganese, iron, chloride and conductivity tests are required to determine water quality. (f) Once the well is completed a one page design form is filled out, generally by the well driller, and submitted to the Health District along with a request to have the well inspected. (g) If the water supply is approved the BSA can then be accepted. The applicant can than obtain a building permit. Page 6

6 2. Expanding approved public water system (a) All water extensions and other improvements that were not constructed prior to final subdivision approval must be completed and approved by the Health District or DOH. See note 2c below. (b) Once approved, bonds or other special methods of holding back funds can be released by the responsible party (Health District or Water Utility). (c) A binding letter, or a two year commitment letter from the water utility must be submitted to the Health District. Note: If a water line extension or other water system improvement has not been completed and the water utility (those systems with over 100 connections) provides a binding letter to an individual seeking a BSA, its approval will be at the discretion of the Health District. The utility must, however, have all improvements completed and approved prior to occupancy of any new residence on the supply. (d) Once a binding letter is received from the expanding water utility the District will sign off the BSA along with the Water Supply Application. 3. Proposed new water system (a) All items listed in (2a-d) above, with the exception of the Note under (2c) must be satisfied prior to a BSA approval. IV. Criteria required for a drinking water supply that is on a non municipal public sewer in order to obtain a Building Permit 1. Individual well on each parcel or one well (private) serving two lots: (a) All items specified under III-1(a)-(g) must be completed. The only modification is that a Building Clearance is required instead of a Building Site Application. Approval of a private well under these circumstances will be rare due to the fact that there are very few instances where an individual well is utilized versus a public water system where public sewer is available. 2. Expanding approved public water system (a) All water line extensions and other improvements that were not constructed prior to final subdivision approval must be completed and approved by the Health District or DOH. See note 2c below Page 7

7 (b) Once approved, bonds or other special methods of holding back funds can be released by the responsible party (Health District or Water Utility) (c) A binding letter from the water utility must be submitted to the Health District. Note: If a water line extension or other water system improvements have not been completed and the water utility (those system with over 100 connections) provides a binding letter to an individual seeking a Building Clearance, its approval will be at the discretion of the Health District. The utility must, however, have all improvements completed and approved prior to occupancy of any new residence on the supply. (d) Once a binding letter is received from the expanding water utility and a letter of sewer availability is received from the sewer utility, the District will sign off the Building Clearance which will enable applicant to obtain a Building Permit. 3. Proposed new water system (a) All items listed in (2a-d) above, with the exception of the Note under (2) must be satisfied prior to Building Clearance approval. mm/dwp/policy/wavail