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CPPC 02-14-94 Meeting Agenda1 COUNTY of FREDERICK Dcparlment of Planning and Dcvelopment 703 / 665-5651 Fax 703/678-0682 MEMORANDUM TO: Comprehensive Plans and Programs Committee FROM: Kris C. Tierney, Deputy Planning Director'/-� RE: Meeting Date and Agenda DATE: February 9, 1994 There will be a meeting of the Comprehensive Plans and Programs Committee on February 14, 1994, at 7:30 pm in the Conference Room of the Old County Court House. Please let me know if you are unable to attend. AGENDA 1) Discussion of the Alternate Wastewater System Study Report. This report was prepared following a lengthy and fairly detailed study of three Rural Community Centers within the County. The report suggests methods which might be employed to provide wastewater treatment to the three Community Centers which were evaluated. The report raises a number of issues which would need to be addressed prior to proceeding with any of the recommended alternatives. The issues raised and how they are addressed will have a direct impact on the Comprehensive Plan as well as the sewer and water service area. A copy of the executive summary from the report is enclosed along with the summary recommendations which came out of the Technical Advisory Committee which was established to oversee the study, and an excerpt from the County's Comprehensive Policy Plan discussing Rural Community Centers. Z) Discussion of status of GIS efforts as they relate to Corridor Studies. Staff will update the Committee on progress being made with the County's GIS. 1) Norlh LOLOOL111 Su -M P.O. Bm 001 Winchcsicr, VA 12001 Windics1cr, VA 22004 ALTERNATE WASTEWATER TREATMENT STUDY SUMMARY RECOMMENDATIONS OF THE TECHNICAL ADVISORY COMMITTEE The final report from P.M. Brooks Associates amounts to a first step in solving the existing and anticipated wastewater problems for the three study areas as well as other Rural Community Centers, however, key policy questions/issues remain to be addressed. The study has investigated and recommended the most likely alternatives for providing reliable, long term, wastewater disposal for the areas. A more detailed investigation of the alternatives will be necessary in order to determine which of the alternatives is in fact the most feasible. The common denominator for all of the areas is the use of existing (or repaired/replaced where necessary) septic tanks for the removal of solids, combined with small diameter lines (3 to 4 inches) to carry liquid waste to a central collection/ treatment system. The method of treatment will vary depending on the particular circumstances of a given area. The Technical Advisory Committee (TAC) feels that the next step in this process needs to be that of addressing the outstanding policy decisions. The issues which need to be resolved are: * Will the Round Hill area be permitted to tie into the existing sewer line lying just to the east of Route 37? This will determine which of the alternatives suggested for this area should be pursued. * Will the Sanitation Authority accept the responsibility for operation and maintenance of the proposed collection and treatment systems? If the Authority is unwilling or unable to undertake this role then some other means of operating the proposed systems will need to be developed. * Will connection to a system (assuming ownership, maintenance, and design issues are resolved) be mandatory? The feasibility and effectiveness of any of the proposed systems will depend greatly on the participation of the residents/homeowners within the study areas. (The TAC believes that some form of financial assistance to those households unable to bare the cost of connecting to a centralized system will have to be part of whatever program is ultimately developed.) An issue somewhat outside the scope of this discussion, but one worth consideration, is whether the County wants to entertain the possibility of running water lines to the Clearbrook/Brucetown area at the same time as the proposed central collection system? There could be significant economic benefits in coordinating these two efforts. Once these policy issues have been addressed the "second phase" of this effort would involve a more thorough investigation of the feasibility of alternatives. Field work to examine the sites proposed for non -discharge systems (spray irrigation and/or constructed wetlands) would be required, as well as efforts to determine the limits that would be imposed by regulatory agencies on discharges into the various streams. Additional work would have to be done to determine the feasibility of obtaining the easements that would be needed in order to implement any sort of central collection system. A significant amount of work would be involved in the actual detailed design of the collection and treatment systems. q I. EXECUTIVE SUMMARY The purpose of this project was to identify any alternative wastewater treatment systems which may have potential for use in the rural communitv centers of Frederick County. The Round Hill, Clearbrook and Brucetown rural community centers were chosen to serve as models on which alternatives for other rural community centers could be based. They were selected because there were documented needs, and conditions in the communities contain examples of the variety of soils, site characteristics, and types of sewage disposal systems common to all the other rural community centers. Alternative wastewater treatment systems are needed in these communities to replace existing failing, inadequate, or aging septic systems before additional health hazards are created. Conventional, large capacity sewage treatment systems are not desired because of the expense in building large sewerage works and the resultant need to encourage growth in order to reduce cost of providing the service. Because the policies and goals of the Frederick County Comprehensive Policy Plan are to support the existing rural community centers without encouraging large-scale growth, the use of conventional systems is not recommended except in cases where no other alternative exists. Soil and site conditions are the main factors, in addition to planning policies, influencing alternative wastewater treatment selection. Soil properties are important because many of the alternative wastewater disposal options are dependent upon soil to provide wastewater treatment or disposal or both. Site characteristics, e.g., land availability, location of existing housing, stream water 1 quality and existing infrastructure, are important because of the restrictions they place on land availability for required wastewater treatment. Background information on soil types, condition of existing sewage disposal systems, housing densities, and parcel location was provided by the Frederick County Department of Planning and the Lord Fairfax Planning District Commission. Mr. Robert Holmes, a consulting soil scientist familiar with the soils in the study areas, provided additional soils investigations. Several reconnaissances of the study areas were performed and the findings were reviewed with the Technical Advisory Committee as the project progressed. The results of this work were compiled to create a working background map over which different wastewater alternatives could be overlain. This information is displayed on the Physiography and Existing Features maps on pages 35 and 36. Any wastewater alternative must be able to comply with existing state and federal regulations in order to be feasible for use. Several land treatment wastewater alternatives that appear technically adequate for use were not pursued because of current regulatory limits on soil suitability. For this reason, the use of experimental systems is limited to those cases where an existing failing septic system must be repaired; no experimental community -wide wastewater treatment alternatives are recommended in this report. Unlike land treatment wastewater alternatives, which depend upon soil conditions for use, discharging system selection is determined by water quality standards. The array of wastewater treatment alternatives for use in discharging systems is controlled by whatever treatment limits must be met. Approval to 4 discharge wastewater into state waters, and the degree of treatment required before wastewater is discharged, is granted by the Department of Environmental Quality (DEQ). The DEQ was contacted for guidance, but declined to provide assistance without a permit application first being filed with them. Therefore, expected discharging treatment limits were based on a permit recently issued to the town of Boyce for a new wastewater treatment plant, based on the similarity of the receiving stream to those in the study area and expected nutrient limits. All of the above information was combined on overlays and is shown on the Wastewater System Alternatives maps, pages 37 and 38. The specific alternatives and recommended future actions are discussed in the following paragraphs. A. Round Hill Rural Community Center - Summary Recommendations 1. Authorization to connect the high housing density areas of Round Hill south of Rt. 50 and the commercial development both south and north of Rt. 50 to the existing public sewer east of Route 37 should be obtained. Residential tracts north of Rt. 50 could also be connected by installing sewers along Rt. 654 and Rt. 50 to Abrams Creek. Installation of those sewers may increase development pressure in this area. 2. If a connection to the existing public sewer is not feasible, then an application for a VPDES permit for a sewage treatment works (STW) with a discharge into Abrams Creek should be made to Department of Environmental Quality (DEQ) -Water Division. The STW would serve the same area described in Item 1. 3 3. A detailed feasibility study of non -discharging sewage treatment systems on several parcels of open lands in the north and south areas of the rural community center should be done. These tracts may be able to provide disposal options for up to a third of the existing population. 4. Small diameter sewers and effluent pumping systems, incorporating either existing or new septic tanks, should be used in place of conventional sewers. Provisions for septic tank inspection and pumping as well as for septage disposal will be required. 5. Ownership of central STWs would be held by the Winchester -Frederick Service Authority. Operation, maintenance, data collection and reporting responsibilities for all related facilities, including sewer lines, and pump stations, should be assumed by FCSA. Septic tank pumping could be done by private contractors at the direction of FCSA. 6. Parcels not located within the densely populated areas of Round Hill will be served by individual repair systems as required. Homes outside of those areas are generally on larger lots which will allow the use of experimental septic tank systems or single family home discharge units to repair drainfield systems as they fail. 7. Estimated capital costs to provide sewage treatment to the Round Hill Rural Community Center follow. (a) If connected to existing public sewer: $1.4 million (1993). (b) If new STW is constructed: $2.8 million (1993). B. Clearbrook - Brucetown Rural Community Centers Summary Recommendations 1. Several large tracts of land to the north and west of Clearbrook have potential for use with non -discharging wastewater disposal systems. A detailed soil feasibility study of the use of spray irrigation, in conjunction with constructed wetlands, on the two tracts identified within the rural community boundaries should be done. Such a system could serve the relatively high density areas of Clearbrook (including commercial and industrial sites). 2. The fairgrounds (south of Clearbrook on Rt. 11) could also be connected to this system; this would require the installation of a pump station and a force main along Rt. 11. This system may support some limited development along Rt. 11 depending upon the size of the non - discharging system described above. I An application for a VPDES Permit for a STW to discharge sewage into Slate Run should be made to DEQ. The STW will serve the high housing density areas of Brucetown. The feasibility of increasing the fishability of Turkey Run using wastewater effluent to increase stream flows should be discussed with DEQ when this application is made. 4. A tract of land located to the northeast, outside of the Brucetown rural community center boundaries, has the potential to serve half of the housing units with a non -discharging system. A detailed feasibility study on this tract should be done. M 5, Small diameter sewers and effluent pumps are also recommended for use with the same provisions and recommendations as stated in Item 4 for Round Hill. 6. Housing units located in the sparsely developed tracts between and surrounding Clearbrook and Brucetown can be served by single home discharging units if needed to repair failing septic systems. Easements to discharge sites along existing swales and drainageways would be required. 7. The Winchester -Frederick Service Authority and FCSA should assume ownership and administration of any and all central wastewater disposal systems in the Clearbrook-Brucetown Rural Communities under the same conditions outlined in Item 5 for Round Hill. 8. A potential site for a septage treatment lagoon is located in the Clearbrook area. 9. Estimated capital cost to provided sewage service to Clearbrook - Brucetown Rural Community Centers is $1.9 - $2.5 million (1993). M Entrances to the community should be evaluated for needed improvements. Measures aimed at increasing the appeal of the areas to both tourists and businesses need to be developed and implemented Regula— ons governing the sue, number and spacing of advertising and business signs should be reviewed and improved. Rural Community Centers Rural community centers are relatively small centers of population and activity in the rural areas of Frederick County. Following the adoption of the 1982 Plan, the Rural Community Center Committee of the Frederick County Planning Commission was formed which proceeded to define rural community centers and to study their characteristics. The Committee held public meetings in 1984 and 1985 to solicit opinions on development policies and developed some recommendations on policies for the rural community centers. The following criteria were used to designate rural community centers: 1. Proximity to and access to collector or arterial routes. 2. Existing concentration of private commercial services within the center, 3. Existing concentration of public services within the center. 4. Access from concentrations of existing population. 5. Actual population growth in the area. 6. Access from concentrations of potential population (subdivided lots). 7. Proximity to other areas which could act as community centers. 8. Physical characteristics of land in the area. 9. Public perceptions. 10. Existing public facilities, churches, and civic clubs. 53 0 The potential rural community centers identified, included the following: Gore Reynolds Store Gainesboro Round Hill Armel Shawneeland/North Mountain Star Tannery Whitacre/Cross Junction Clearbrook/Brucetown/Stephenson Provisions should be made in County policies to recognize the rural centers and to accommodate the differences between each center. Many of the centers are now zoned for agriculture, which is not necessarily appropriate in relation to the functions of some of the centers. The Committee recommended that Armel, North Mountain/Shawneeland, and Reynolds Store/Whitacre/Cross Junction be treated similarly as the surrounding areas. The recommendations for all other community centers suggest that additional commercial development will occur in the rural community centers. Only the recommendations for Gore suggest encouraging increased amounts and densities of housing in relation to surrounding rural areas. The recommendations for all rural community centers promote improved public services. The recommendations for the Round Hill Community Center place particular emphasis on increased -road improvements and the provision of public sewer and water service. Water and sewer issues are also important in the Clearbrook, Stephenson, and Brucetown areas. A study designed to investigate and develop recommendations on possible methods of treating wastewater in the Round Hill, Clearbrook and Brucetown areas has been conducted. A report has been drafted and is expected to be finalized by October of 1993. A Technical Advisory Committee will then submit the report with their summary recommendations to the Planning Commission and Board of Supervisors. The County needs to consider the recommendations of the report and investigate funding sources in order to implement the most cost effective solution. 54 IL Source: Frederick County Department of Planning and Development Because of recent development, there is a need to reconsider including Albin as a potential rural community center. _55 c r r c I Table 12 Comparison of Rural Community Centers Facts and Figures Frederick County, Virginia 1985 CATEGORY Gainesboro Round Hill Gore Clearbrook, Stephenson, Brucetown Armel HOUSING Single Family 122 266 101 346 158 Mobile Homes 13 14 23 229126 Total 135 280 124 575 184 LOT SIZE Average 13 2.75 7.5 4 6.25 Residential 2.5 1.25 2.25 125 2 POPULATION (Estimated) 466 966 427 1,948 635 LAND USE Residential 288 338 220 545 354 Commercial 5 36 8 52 3 Mixed 5 46 4 80 7 Industrial 30 19 12 411 0 Public/Semi-Public 631 22 9 981 6 Agriculture/ Open Vacant/Wooded 381 808 352 284 386 549 1,414 217 608 473 Total 1,580 1,097 1,188 2,817 1,451 IL Source: Frederick County Department of Planning and Development Because of recent development, there is a need to reconsider including Albin as a potential rural community center. _55 c r r c I Issues: There is a need to determine to what extent rural community centers will be the primary location of commercial and service uses in the rural areas. The extent to which additional commercial development should be allowed in each rural community center needs to be determined. There is a need to determine whether additional housing growth should be encouraged in each center. What density of housing development should be allowed in each center? A method for providing public services to rural community centers needs to be determined. Rural Areas In terms of land area, Frederick County, Virginia is predominantly rural in character. In Frederick County, rural areas can be defined as all areas not within the designated Urban Development Area of the Comprehensive Plan. In the County, the primary land uses in rural areas are agriculture and forests. Rural areas show a population growth pattern consisting of widely scattered, large lot residential development. Frederick County contains 266,000 acres of land. Of this acreage, approximately 23,000 is contained within the bounds of the Urban Development Area. The remaining 243,000 acres is in the rural areas. Roughly 230,000 acres lie west of Interstate 81 and are intended to remain rural into the indefinite future. Many residents of Frederick County are attracted to the natural beauty and special lifestyle found in rural portions of the County. Excessive or inappropriate development in these areas can reduce their value and attractiveness. At the same time, the rural areas play an important role in the County's economy through the income generated by agriculture. Fruit production was the largest single category of agricultural production, in terms of dollar value, in the County in 1982. Over one-half of the market value of agricultural production in recent years has been fruit production. Most of the rest of the agricultural production involved livestock. In 1982, according to the United States Agricultural Census, there were 111,116 acres of farmland in Frederick County. The estimates of farmland acreage show that the total amount of farmland decreased steadily and significantly between 1950 and the early 1970's. However, between 1974 and 1982, the acreage of farmland remained relatively constant at about 120,000 acres. The estimated farmland acreage then fell between 1982 and 1987. Most of the reduction in farmland acreage that occurred in the 1950's and 1960's was 56