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3. 2 Rivers ResortON REPORT TO: Mayor and City Council FROM: Jim Hansz, Director of Public Works SUBJECT: Lincoln Sewer Connection MEETING DATE: August 2,1999 BACKGROUND: The issue of a sewer connection for the Lincoln property, adjacent to but outside the Evergreen RSID, has returned for reconsideration by the City Council. Previously, the City Council heard a request from Bill Lincoln for permission to make a sewer connection to the Evergreen system. The Lincoln property is outside but contiguous to the Evergreen RSID. The Council's decision was to decline permission and to refer the matter back to Evergreen with a recommendation that the RSID boundary be revised to include the Lincoln property and thus eliminate the need for obtaining City permission for the service connection. Since then, a new scenario has emerged that would have the Lincoln sewer service connection made to the WWTP force main at a point well outside the boundary of the RSID. In accordance with that section of the Interlocal Agreement dealing with Force Main Connections, this would place the decision on providing sewer service within the sole jurisdiction of the City. With this in mind, Public Works has again reviewed the issue to determine whether Mr. Lincoln's request could be acted on favorably within current City policy. When we previously reviewed this request we concluded that the request does not conform to the City Council's recently adopted policy for extension of service because Mr. Lincoln's property is outside the City and is not contiguous to the City boundary. At the regular meeting of May 3Td the City Council requested alternatives for providing service to the Lincoln property. We identified four alternatives .for providing service to the Lincoln property which remain relevant. These alternatives modified to reflect the present circumstances are as follows. 1. The City could annex the subject property. Montana law does not prohibit this type of annexation beyond the boundary of the City. Sewer service could be provided upon Post Office Box 1997 - Kalispell, Montana 59903-1997 Telephone (406) 758-7700 - FAX (406) 758-7758 annexation and a connection to the force main could be authorized. This alternative is not in strict conformance with the current extension of service policy that requires contiguity. However, as previously reported, it would not be without precedent. A recent example of this is the Willows Subdivision. Potential problems from this approach include, but are not necessarily limited to, the difficulty of delivering other services such as police and fire protection and measurement of sewage flow, which may require special metering arrangements to ensure proper billing and collection. In addition, the capacity of the force main itself presents a problem not previously at issue. It is designed to carry 2,000 gallons per minute (GPM) of flow from Evergreen and an additional 200 GPM from a potential City connection directly to the force main. This 200 GPM availability is a restraint on the City's ability to authorize connections without first having full and complete information. In this regard, two initial concerns have been identified. First, is the 200 GPM of available City capacity adequate for the proposed use? Second, if the Lincoln requirement is equal or less than the 200 GPM available, then how does the Lincoln request conform with the City Council's overall assessment of the needs of the area potentially served by the force main. In other words, should a single customer receive all, or most, of the limited capacity available or should it be allocated among the properties within a definable service area? 2. The City Council may annex Conrad Drive past the property. This will make the subject property contiguous to the City and will satisfy City policy in this respect. Service to the Lincoln property could then be provided and annexation would be simplified. The potential problems outlined in the preceding alternative are shared by this alternative. In addition, the City would incur the full maintenance obligation for nearly a mile of County road built to questionable standards and in uncertain condition. The road includes a bridge. 3. The City Council may forego annexation of any sort and consider this request separately from its recently adopted policy for the extension of City services. In this alternative, the City Council would weigh the merits of this request without the added considerations of road maintenance and delivery of other services. No other positive benefits of this approach have been identified. The previously described problems would remain to be resolved. The sewer rate for the subject property would need to be determined. The present outside rate is 125% of the inside rate, but the initial Lincoln request was represented to include a willingness to pay a higher rate. In addition to not satisfying City policy regarding the extension of services, this alternative may potentially set an undesirable precedent that could complicate the disposition of future requests of a similar nature. This alternative would aggravate the present situation regarding the consumption of remaining City WWTP capacity by sources not in the Evergreen District and not in the City. 4. The City Council may decline to provide service via the force main and refer the issue back to the District for their resolution. The Lincoln property is contiguous to the District boundary and may be incorporated into the District with some effort. The City Council could then give its consent to a revision of the District boundary to include the Lincoln property. This would remove the matter entirely as a City concern except as it relates to amendment of the Interlocal Agreement. By this approach, the City Council would be consenting to amendment of the agreement. Former Interim City Manager, Mr. Al Thelen, identified revision of the District boundary to be a highly desirable solution for the City. We concur. It would allow this and future requests to be considered strictly as a District issue and would place the decision making squarely in the hands of the agency with the greatest interest in the matter. It would also assist to move the issue of WWTP capacity utilization further down the list of items that currently compete for the attention of the City Council. With respect to feasibility, Mr. Thelen also pointed out that such an effort is merely difficult, but it is not impossible as has been previously stated. Also, amendment of the Interlocal Agreement has been accomplished in the recent past. Amendment of this agreement for this purpose may also provide other desirable opportunities to amend other portions of the agreement to the City's benefit. RECOMMENDATION: The Public Works Department believes the main issue to be considered at this point is how to provide sewer service to the Lincoln property in a way that will benefit the City; at least produce the fewest adverse impacts on the City. Also, we believe we should not recommend an action that would place the City Council in the awkward position of failing to follow its own policies and ordinances. After reviewing the alternatives, we see two potential routes to this destination. The Public Works Department can enthusiastically recommend alternative #4. It will provide the requested sewer service to the Lincoln property with absolutely the fewest problems for the City and some significant potential benefits as well. If this alternative were deemed unacceptable, then we recommend that Mr. Lincoln develop a thorough and complete development plan for this property. This should be done in full conformance with the City's policies and ordinance requirements. All the general and specific requirements of this plan are detailed in the City's Subdivision Regulations, the Standards for Design and Construction, and the Extension of Services Plan. Extracted copies of these requirements are attached for reference. The development plan will clearly identify the total service need with respect to the area where the development is proposed and the facilities available. Once this information is available the City Council can consider the request to serve the Lincoln property via the force main. FISCAL EFFECTS: None at this time. ALTERNATIVES: As suggested by the City Council Respectfull tted, am . Hansz, P Chris A. Kukulski Director of Publicr ity Engineer City Manager Report compiled August 2, 1999 LI PELL, MONTANA SECTION II DESIGN STANDARDS Design Requirements. All water, sanitary sewer, storm drainage and roadway systems necessary to provide service to and within a development shall be constructed at the Developer's expense and shall be designed by a Professional Engineer. Plans, specifications and design reports shall bear the seal of the Engineer in responsible charge of the design. Water and sanitary sewer system designs shall be reviewed concurrently by the City Engineer and the Montana Department of Environmental Quality, with approval of both required. Storm drainage and roadway designs shall be submitted to and approved by the City Engineer. All required approvals shall be obtained prior to beginning construction. Design calculations and testing results shall be submitted to the City Engineer as required. Development Requirements. All subdivisions and developments shall be in compliance with ]]it Subdivision Regulations of the City of Kalispell. It shall be the responsibility of the Developer to construct all roadways and utilities from the existing facilities to the far property line of the development. All utilities shall be within a public right-of-way or easement to permit future Developers free and unobstructed access. A Developer's Extension Agreement may be approved by the City enabling the Developer to recover a pro -rated share of utility installation costs from late comers. The agreement shall be in accordance with the adopted Extension of Services Plan. It is the Developer's responsibility to obtain and provide the City with all easements and right-of-ways necessary to extend roadways and utilities to the far property line of the development. DS-02 Water Systems. Water systems shall be designed, constructed, and tested in accordance with the current editions of circular WQB 1 - Montana Department of Health and Environmental Sciences - Standards for Water _)YD, The Montana Public Works Standard Specifications and this document. Subdivisions with a public water system that are within the five year service area of the City or within one mile from the corporate limits of Kalispell, if no such service area has been established, shall be designed in accordance with the adopted standards of the City and the distribution system shall be designed for fire flow capabilities as required by the City and the Uniform Fire Code. Service Fittings. Service fittings shall be Mueller Insta-Tite or 110 Series compression fittings, or an approved equal. Curb Boxes. Curb boxes shall be Mueller H-10308 or an approved equal, cast iron extension type with arch pattern base, 1 1/2 inch I.D. upper section, minimum length 6 1/2 feet, with a shut off or and a lid having a pentagon nut in the plug. Service Pipe. Service pipe up to three (3) inches in diameter shall be polyethylene pipe conforming to AWWA C-901 Standards. Service pipe four (4) inches or larger in diameter shall be Class 150 PVC pipe, conforming to AWWA C-900 Standards. Tapping Sleeves. Tapping sleeves shall be Power Seal Model 3490 AS (Stainless Steel) or an approved equal. Ductile Iron Fittings. Ductile iron fittings shall be Class 350 SSB fittings conforming to AWWA C-153 Standards. Valve Boxes. Main line valve boxes shall be designed for slip type adjustment. DS-03 Sanitary Sewer Systems., Sanitary sewer systems shall be designed, constructed and tested in accordance with the current editions of WQB 2 Montana Department of Environmental Quality - Design Standards for Wastewater Facilities, Montana Piblic Works Standard Specifications and this document. The following shall apply to the design of all sanitary sewers: Gravity Sewers. Unless waived by the City Engineer, the Design Engineer shall submit a written report for all improvements or additions to the sanitary sewer system. The report shall assess the ability of the existing collection system to handle the peak design flow from the project and the impact on the Wastewater Treatment Plant. Sewage Lift Station. A written report shall be submitted by the Design Engineer for any project that will create a new sewage lift station or will contribute to an existing sewage lift station. The report for a new sewage lift station shall contain, but not be limited to, the following: - a description of the proposed wet well, pumping system and force main. - the capacity of the recommended pumps and potential for upgrading. - a map showing the potential lift station service area. - the average and peak design flows for the proposed project and for the potential service area - the hydraulic capacity of the force main. - the reserve capacity of the lift station when the proposed project is on line at full capacity - the pump run and cycle times for the average and peak design flows. - strategies for improvements which may be necessary to accommodate future sewer extensions (i.e. increased storage, pumping or auxiliary power capacity). ME a statement of the pump selection process, including the Engineer's calculations for the total dynamic head, total discharge head, net positive suction head and other pertinent pump selection criteria. the designed pump operating curve plotted on a manufacturer's pump performance chart with the designed operating point clearly identified. The report for a project that will contribute to an existing sewage lift station shall contain, but not be limited to, the following: - a description of the existing wet well, pumping system and force main. - the capacity of the existing pumps and potential for upgrading. - a map showing the potential lift station service area. - a list of the existing users and their average design flows. - the existing peak design flow and reserve capacity. - the pump run and cycle times for the existing average and peak design flows. - the hydraulic capacity of the force main. - a list of the proposed users and their average design flows. - the proposed average and peak design flows to the lift station. - the reserve capacity of the lift station with the proposed project on line at full capacity. - the pump run and cycle times for the proposed average and peak design flows. - recommendations for improvements, if necessary to enable the lift station to serve the proposed project. Unless otherwise approved by the City Engineer, new pumping systems shall be of the above ground, self -priming, suction lift type and the pumps shall be equal to that manufactured by the Gorman Rupp Company. Unless otherwise approved by the City Engineer, an emergency power supply and/or provisions for emergency by pass pumping will be required for all lift stations. Upon request from the City Engineer, the Design Engineer shall submit a list of three lift stations of the type proposed which have been in operation at least five_ years. The City reserves the right to accept or reject the proposed lift station. An alarm system shall be provided that is capable of detecting power interruption, high water and high motor temperature conditions. The alarm signals shall be directed to an on site alarm monitoring and telephone dialer system. The alarm monitoring and telephone dialer system shall be' an ADAS DiaLog Plus model as manufactured by Kaye Instruments. An hour meter, suction pressure gauge, and - discharge pressure gauge are required on each pump. Amperage meters are required on each leg of the electrical wiring. Minimum Pipe Size. The minimum diameter of any gravity sanitary sewer main shall be eight (8) inches. Minimum Depth. The minimum depth of gravity sewer mains shall be four (4) feet to -flow line. The minimum depth of sewage force mains shall be six (6) feet to the top of pipe. II-4 CITY OF K.ALISPELL EXTENSION OF SERVICES PLAN ADOPTED BY RESOLUTION #4241 NOVEMBER 6, 1995 city standards, including curbs, gutters, sidewalks, boulevards, street signs, street lights and street trees. Standards for such improvements are contained in the City of Kalispell's Subdivision Regulations and the City's Standards For Design and Construction. The POLICY section of this plan details these requirements. The City of Kalispell also levies a Special Street Maintenance Assessment on properties within the city. This assessment provides for the salaries of the city street sweeper operator and support expenses associated with sweeping and flushing streets, leaf removal, snow removal and sanding/de-icing services. Currently, the assessment is $.0045 per square foot of land. STREET MAINTENANCE The City of Kalispell plows dedicated streets within the incorporated area, while the Montana Department of Transportation plows U.S. Highways 2 and 93 through the city. As annexation occurs the same plowing procedures will be followed. The present equipment is generally considered adequate for the city's snow plowing needs, although in the event of an unusually heavy snowfall the city will contract with local operators for assistance. The need for additional equipment and personnel should be determined and coordinated as the city grows. The city also has an agreement with the Montana Department of Transportation whereby the city agrees to sweep, clean and sand. Highway 2 within the city limits and east to the Flathead River bridge (including a segment of State Highway 35), and Highway 93 within the city limits and as far north as Reserve Drive. The State of Montana supplies the city with two street sweepers in exchange for the city providing the service. A portion of the above -described Special Street Maintenance Assessment helps fund the city's snow plowing program. SANITARY SEWER A sewerage system is a network of sewers used to collect the liquid wastes of a city for subsequent treatment. The location and capacity of main sewer lines and treatment plants are a factor in determining both the density and location of development within a community. Generally, the design of main sewer lines and plant capacity .is reflective of anticipated land uses and population projections of a predetermined "service" area. In contrast to a pressurized distribution system, sewage is collected by a gravity flow system, wherein sewer lines are laid out in a manner as to flow continually downhill. Where grades are W insufficient to provide gravity flow, pumping of the sewage becomes necessary. Adding pump stations to the system correspondingly adds expense and maintenance needs and is generally discouraged. The city system currently contains more than 52 miles of sewer mains and thirteen sewage lift stations. The City of Kalispell operates a wastewater treatment plant which provides secondary treatment with advanced biological nutrient removal. The plant is located on the south edge of the city on Airport Road. The treatment plant is designed to accommodate a flow of approximately 3.1 million gallons per day (mgd). A plant of this capacity is able to serve a population of approximately 31,000. The plant is currently treating an average of 1.5 mgd of effluent, with 0.5 mgd of capacity allowed for infiltration and inflow of storm water. High groundwater infiltration and storm runoff inflow are having a significantly negative impact on the city's collection system. Infiltration and inflow are extraneous waters which can enter the sewer system and thus reduce the sewage carrying capacity of the sewer, pump station and treatment systems. As the amount of infiltration and inflow is reduced, the ability of the plant to serve a larger population is increased. Much of the storm runoff inflow has been eliminated through the construction of underground storm drainage facilities, elimination of cross -connected stormwater catch basins and disconnection of roof drains from sanitary sewer lines. As the city's street reconstruction program continues, storm drainage is being improved. The residents of the Evergreen area are served by the Kalispell wastewater treatment plant via the Evergreen sewage collection system. This collection facility was constructed in 1993-94 and is owned and operated by the independent Evergreen Water and Sewer District. The system consists of 38 miles of conventional gravity and small diameter sewer lines, 23 lift stations and 10 miles of pressurized sewage force mains. The system is designed to serve 2,500 to 3,000 customers and. by contract is allotted a 22% share of the City of Kalispell wastewater treatment plant's current operating capacity. The design of new,sewage.;collection systems,must,,meete-the current requirements of the Montana `Departime`,nt6f,Health-and Environmental Sciences, the Montana Public Works Standard Specifications, the city's Standards for Design and Construction and the policies for extending services described in this plan. Most of the Kalispell service area which at this time is not developed will, upon development, require new sewage lift stations or will impact existing sewage pumping facilities. The major exceptions are certain areas west of town, where in many cases gravity sewer extensions can be designed to serve the areas adjacent to the current city limits. However, as'development 11 continues further west, sewage lift stations will be necessary as well. Throughout the Kalispe-11 sewer service area there are many high density residential neighborhoods utilizing septic sewage disposal. Properties served by septic systems inside the city limits include lands east of Dry Bridge Park along Woodland Avenue and South Woodland Drive, and scattered lots west of Highway 93 and north of Three Mile Drive. Plans are being developed to bring these areas onto the city sewer system in the next five years. Outside the city limits, Kalispell is ringed by areas of high - density residential development with septic sewage' disposal. These include the Ramsgate and North Haven subdivisions on the northwest, the Two Mile Drive (west of Spring Creek) and Foy's Lake areas on the west, a slaughter house and trailer park on Airport road on the south, scattered development on Willow Glen Drive between Twin Acres Drive and Conrad Drive on the east, various subdivisions on Whitefish Stage Road on the northeast, and the Country Estates and Mountain Villa developments on the north. These areas, as well as the Evergreen sewer special improvement district, comprise the City of Kalispell sewer service area as shown on Figure 3. During the next five years, and beyond, the influences of continued property development, failing septic disposal systems, and the State's Water Quality and Nondegredation Rule will combine to bring many of these areas onto the city's sewer system. The ultimate capacities of the North Village and Evergreen sewer districts are constrained by the limits of their sewage pumping systems and the lengthy pressurized force mains which connect them to the city system. Operating with finite limits, the two have allocated their capacities to property within their respective districts, and have little potential for extensions beyond their boundaries. - Sewer extensions associated with the Evergreen force main are governed by the policies of the Kalispell sewer department, as properties served by those extensions will also be customers of the City of Kalispell. The Evergreen force main is a 14-inch-diameter, 5-mile-long pressurized sewer main, designed to carry over 700,000 gallons per day of liquid sewage; the policy for extensions from this force main are intended to limit the possibility of damage to this vital link between the Evergreen and Kalispell systems or of an interruption of service. Connections will be limited to pressurized force mains* from lift stations serving neighborhood collection systems and, to minimize the number of connections to the 14-inch force main, each neighborhood lift station will be designed to maximize its potehtial'service area. Detailed engineering studies are required to determine the best location for the sewer lines and lift stations based on individual 12 develo mew, g2posals, with consideration given to the long range needs of the area(s) surrounding the development site. STORM WATER MANAGEMENT - Storm water runoff is the water flowing over the surface of the ground during and as a result of a rainfall or as a result of a snow melt. The primary goal in the management of storm water runoff is, through the provision of appropriate facilities, to minimize hazards to life and property. This is accomplished by using storm sewers to collect and carry rain or surface water to a natural water course or body of water in such a way as to prevent flooding and the resultant damage. There are six primary storm water drainage service areas in the city. Area 1 drains the northeastern portion of the city east of Highway .93, discharging into the Stillwater River. Area 2 encompasses that area between Highway 93 and Meridian Road north of the Burlington Northern railroad right-of-way, and discharges to the west in the vicinity of the Old Mill Pond Ditch. Area 3 drains that area generally described as being -east of Highway 93 and north of the Burlington Northern right-of-way, as well as about a 15- block area south of Center Street and east of Main Street. Area 3 drains easterly into the vicinity of Woodland Park and south to the Stillwater River drainage. Area 4 generally includes that area south of the railroad right-of-way on either side of Main Street, and discharges south into Ashley Creek behind the city shops complex. Area 5 is concentrated on Meridian Road and on 7th Avenue West south of Center Street, with discharge into Ashley Creek near the west end of llth Street West. Area 6 consists of what is known as the Mosquito Control system, and was formerly operated by the Flathead County Mosquito Control Board. The city acquired control of the system from the County in 1993. The system's gravity collection mains run generally along and north of 18th Street from 5th Avenue East to Airport Road, with catch basins at 5th Avenue East, 3rd Avenue East and at scattered locations on the Outlaw Inn and Diamond Lil's properties. The remainder of the city has, for all practical purposes, no storm sewer infrastructure. Storm water is drained by flowing along gutter lines and in streets. Most recent developments within the city limits which are unable to tie into existing systems utilize less complex, on -site means of handling storm water. As new city streets are constructed, and as existing streets are improved, storm drainage infrastructure will be installed or improved. Those persons developing property have the responsi- bility to convey storm water from their property to an appropriate point of disposal. The quantity and rate of runoff from a developed piece of property should not exceed that which would occur had the property remained undeveloped. 13 CITY OF KALISPELL Ordinance No. 1238 Adopted May 6, 1996 Prepared by: Flathead Regional Development Office 723 Fifth Avenue East, Room 414 Kalispell, MT 59901 Telephone: (406) 758-5980 _� - Fax: (406) 758-5781 Page 30 - Kalispell Subdivision Regulations Environmental Quality, Water Quality Division, standards. All discharge permits shall be obtained by the developer. I. All areas disturbed during development of the subdivision shall be re - vegetated in accordance with a plan approved by the City Parks Director. 3.13 TEMPORARY EROSION AND SEDIMENTATION CONTROL: During the construction of improvements in the subdivision, the subdivider shall be responsible for installing temporary erosion and sedimentation control facilities to control surface runoff. No silt laden water or excess shall flow to downstream areas or lakes. Such controls shall be in accordance to the Natural Resources Conservation Service standards, the Kalispell Standards For Design and Construction, and the State Department of Environmental Quality, Water Quality Division. 3.14 WATER SUPPLY SYSTEM: A. All water supply systems shall comply with the Kalispell Standards for Design and Construction, the Flathead City -County Health Department, and Montana Department of Environmental Quality. B. Where the subdivision is within the service area of the City's municipal water supply system, the subdivider shall install complete water system facilities in accordance to the requirements of the Kalispell Standards for Design and Construction and the Montana Department of Environmental Quality. C. The source of water supply shall be subject to approval by the City of Kalispell which may also require that any proposed system meet the Uniform Fire Code. 3.15 SEWAGE TREATMENT SYSTEMS: A. All sewage treatment systems shall comply with the Kalispell Standards for Design and Construction, the Flathead City -County Health Department, and the Montana Department of Environmental Quality. B. Where the subdivision is within the service area of the City sanitary sewer system, the subdivider shall install complete sanitary sewer system facilities in accordance with the requirements of the Montana Department of Environmental Quality and the Kalispell Standards For Design and Construction. Appendix - Page A-5 011 ZI /T►a:3 ENVIRONMENTAL ASSESSMENT GENERAL INSTRUCTIONS This Environmental Assessment format shall be used by the applicant as a guide in compiling a thorough description of the potential impacts for the proposed subdivision. Each question pertinent to the proposal must be addressed in full (both maps and text); those questions not applicable shall be so stated. Incomplete Environmental Assessments will not be accepted. The sources of information for each section of the Assessment shall be identified. All Environmental Assessments shall contain the signature, date of signature and mailing address of the owner of the property and the person, or persons, preparing the report. - I. GEOLOGY: A. Locate on a copy of the preliminary plat: 1. Any known hazards affecting the development which could result in property damage or personal injury due to: a. Falls, slides or slumps - soil, rock, mud, snow. b. - Any rock outcropping. B. Describe any proposed measures to prevent or reduce the danger of property damage or personal injury from any of these hazards. H. SURFACE WATER: Locate on a copy of the preliminary plat: A. Any natural water systems such as streams, rivers, intermittent streams, lakes or marshes (also indicate the names and sizes of each). B. Any artificial water systems such as canals, ditches, aqueducts, reservoirs and irrigation systems (also indicate the names, sizes and present uses of each). C. Any areas subject to flood hazard, or if available, 100-year floodplain maps (using best available information). Appendix - Page A-7 VII. SEWAGE TREATMENT: A. Where individual sewage treatment systems are proposed for each parcel: 1. Indica.te the distance to the nearest public or community sewage treatment system. 2. Provide as attachments: a. Two (2) copies of the plat which show the proposed suitable location on each lot for a subsurface treatment system and a 100 % replacement area for the subsurface treatment system. Show the ration of neighboring wells and subsurface treatment systems and the distances to each. b. The results of percolation tests performed in representative areas for drainfields in accordance with the most recent DEQ Bulletin. Each percolation test shall be keyed by a number on a copy of the plat with the information and results provided in the report. The number of preliminary percolation tests required shall be one- fourth (1/4) of the total number of proposed lots and these tests shall be performed in the different soil types, or evenly spaced throughout the subdivision in the absence of soil variability. C. A detailed soils description for the area shall be obtained from test holes at least seven (7) feet in depth. The number of test holes will depend upon the variability of the soils. The U.S. Department of Agriculture's "Soils Classification System" shall be used in the descriptions. Information on the internal and surface drainage characteristics shall be included. Each test hole shall be keyed by a number on a copy of the plat with the information provided for in the report. d. A description of the following physical conditions: (1). Depth to groundwater at time of year when water table is nearest the surface and how this information was obtained. (2). Minimum depth to bedrock or other impervious material, and how this information was obtained. B. For a proposed public or community sewage treatment system: 1. Estimate the average number of gallons of sewage generated per day by the subdivision when fully developed. Page A-8 - Appendix 2. Where an existing system is to be used: a. Identify the system and the person, firm or agency responsible for its operation and maintenance. b. _ Indicate the system's capacity to handle additional use and its distance from the development. C. Provide evidence that permission to connect has been granted. 3. Where a new system is proposed: a. Attach a copy of the plat showing the location of all collection lines and the location and identification of the basic components of the treatment system. b. If subsurface treatment of the effluent is proposed, give the results of the preliminary analysis and percolation tests in the area of the treatment site. C. Provide a description of the following physical conditions: (1). Depth to groundwater at time of year when water table is nearest the surface and how this information was obtained. (2). Minimum depth to bedrock or other impervious material, and how this information was obtained. d. Indicate who will bear the costs of installation and who will own, operate and maintain the system. Also, indicate the anticipated date of completion. VIR. WATER SUPPLY: A. Where an individual water supply system is proposed for each parcel: 1. If individually drilled wells are to be used, provide evidence as to adequate quantity and quality of the water supply. 2. If any other method of individual water supply is to be used: a. Explain why the alternate form of water supply is proposed instead of drilled wells.