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87S005~ee~y-~0w-~g~-~F~ '~\~ February 25,' 1987 BS ~f'~ REQUEST ANALYSIS AND RECOMMENDATION 87S005 Linwood F. Belcher Matoaca Magisterial District Northern terminus of Belcherwood Drive REQUEST:. Amend Conditional Use (Case 82S071) to permit the expansion of an existing landfill. PLANNING COMMISSION RECOMMENDATION RECOMMEND APPROVAL SUBJECT TO THE CONDITIONS ON PAGES 1, 2, AND 3. STAFF RECOMMENDATION Recommend approval for the following reasons: The proposed Western Area Land Use and and Transportation Plan designates the request parcel and the surrounding area for low density residential development. Given the limited residential development anticipated, expansion of the landfill will not adverse- ly affect future area development. Be The conditions recommended herein insure proper operation and recla- mation, and will minimize the impact on adjacent and area properties. (NOTE: THE CONDITIONS NOTED WITH "STAFF/CPC" WERE AGREED UPON BY BOTH STAFF AND THE COMMISSION. CONDITIONS WITH ONLY A "STAFF" ARE RECOMMENDED SOLELY BY STAFF. CONDITIONS WITH ONLY A "CPC" ARE ADDITIONAL CONDITIONS RECOMMENDED BY THE PLANNING COMMISSION.) CONDITIONS (STAFF/CPC) 1. (STAFF/CPC) 2. The following conditions notwithstanding, the plan pre- pared by J.K. Timmons and Associates, P.C., revised Novem- ber 6, 1986, shall be considered the Master Plan. (P) Within the fifty (50) foot buffer along the western prop- erty line, landscaping, including existing vegetation, having a sufficient initial height and of a species which will provide year-round screening shall be installed. If existing vegetation and/or topography is not sufficient to provide year-round screening, additional landscaping shall be installed. Other than utilities which run generally (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) (STAFF/CPC) Be e e e 10. 11. perpendicular through the buffer and a fence, there shall be no facilities located with the buffer. The limits of the buffer shall be defined to preclude dumping and grad- ing within the buffer. Also, there shall be no filling or grading permitted in the buffer except that necessary to accommodate utilities. A detailed plan depicting this requirement shall be submitted to the Planning Department in conjunction with final plan review. (P) Until such time as it has been determined by the Environ- mental Engineering Department and/or the Department of Waste Management that the existing landfill has been constructed and adequately stabilized in accordance with a plan approved by Environmental Engineering, there shall be no new debris deposited in the proposed landfill area. (EE) The final document titled, "General Standards for Permit Issuance for Construction-Demolition-Debris (CDD) Land- fills" and the final plan of development shall be submit- ted to, and approved by, Environmental Engineering, the Planning Department and the State Department of Waste Management. Upon final approval, the document shall serve as the plan and operational program for the landfill. (EE) Standard and Specification 1.26 sediment basins shall be installed in those locations deemed necessary by the Environmental Engineering Department. (EE) The area of permitted landfill activity shall be clearly defined by a permanent means. The method of delineation shall be approved by the Planning Department. (P) Prior to any vegetative disturbance, all necessary off-site easements downstream of the affected drainage area shall be obtained. (EE) The plan shall indicate the desired sequencing of events for the proper implementation of erosion control devices in conjunction with the plan of operation. (EE) Hydroseeding and mulching shall be completed within fif- teen (15) days after achieving finished grade of each cell. (EE) Prior to any vegetative disturbance, all necessary ap- provals and/or permits from the Department of Waste Man- agement, Environmental Engineering, and the Planning Department shall be acquired. (EE) Fill material shall be limited exclusively to soil, stone, rock, land cleared and building materials. (P) "~'005/BSJAN7/FEB25N (STAFF/CPC) 12. (STAFF/CPC) 13. (STAFF/CPC) 14. (STAFF/CPC) 15. (STAFF/CPC) 16. (STAFF/CPC) 17. (STAFF/CPC) 18. (STAFF/CPC) 19. GENERAL INFORMATION Location: Existing Zoning: Size: Prior to any further fill activity, a certified engineer- ing report identifying the contents of the existing fill area shall be submitted to the Planning Department. Upon completion of filling, a certified engineering report identifying the contents shall be submitted to the Plan- ning Department. (p) The access road into the site shall be secured with a gate which shall be locked to prohibit indiscriminate dumping. (P) Unless required by the Department of Waste Management, every twelve (12) months from the date of approval, a certified report of the surface and groundwater shall be submitted to the Planning Department. This report shall reveal that the landfill has not resulted in the con- tamination of the surface and groundwater. (p) Until such time as plan compliance and stabilization of any existing cell has been determined by Environmental Engineering, there shall be no operation of a succeeding cell. (EE) Construction of any facilities over the fill area shall not be permitted unless soil engineering studies approve the suitability of such construction. (SS) During the hours of operation, a supervisor shall be located on the site for the purpose of monitoring and directing the fill activity or the site shall be secured to preclude indiscriminate dumping by the general public. (P) A plat showing the exact metes and bounds of the fill area shall be submitted to the Planning Department. This plat shall note all conditions stated herein and, upon approval by the Planning Department, shall be recorded in the Circuit Court with the property reference. (p) Prior to any filling, the fire control plan shall be approved by the Chesterfield County Fire Prevention Bureau. (P) Northern terminus of Belcherwood Drive. Tax Map 77 (1) Part of Parcel 36 (Sheet 21). A 22.1 acres 3 87S005/BSJAN7/FEB25N Existin~ Land Use: Adjacent Zoning & Land Use: Utilities: Environmental Engineering: Agricultural or Vacant North - A; Swift Creek South - A; Agricultural or vacant East - A; Agricultural or vacant West - A; Agricultural or vacant Public utilities are not required for the proposed use. The request parcel is located adjacent to the limits of an existing construction demolition and debris landfill which drains into Swift Creek. The adjacent landfill obtained a Conditional Use in 1982 (Case 82S071). Most landfill activity creates severe soil limitations and often hinders or even precludes future development of site since fill material is subject to displacement and settlement. Rate of decay of buried organic material is extremely difficult to predict. Consolidation of fill can be exPected to continue for many years with accompanying settlement. Attempting to support any structures over fill involves definite risk. Foundations of buildings, unless properly designed, will be subject to unusual set- tlement resulting in both health and safety problems. Adequate soil bearings for footings may require, excavation to the undisturbed soil surface for the total length of the footing. Another alternative might be to construct a future building on pilings driven through the fill material into the undisturbed soil. Although there are means of supporting foundations for structures, porches, steps, roadways, and sewer lines, they are also subject to breaking from settlement of buried mate- rials. (Condition 16) Although a small portion of the subject site drains directly into Swift Creek, the majority of the property drains through the adjacent properties to the west, eventually into Reedy Branch Creek. Although the drainage areas for these swales are rela- tively small, the drainage swale below an existing pond appears to have a flowing ~"O05/BSJAN7/FEB25N stream, even though the water surface of the pond is below the spillway and not contributing any surface discharge to the stream. The continuous flow of the stream may be due, in part, to seepage of the pond's water into the ground water. It appears the existing adjacent landfill encroaches into the 100 year floodplain of Swift Creek. The existing adjacent land- fill is not suitably stabilized. Although the top of the fill area appears to be stabilized, the slopes along the Swift Creek floodplain have debris protruding through the existing fill. Top soil which would aid in the stabilization process does not appear to have been placed on the existing landfill and the slopes adjacent to Swift Creek appear to be too steep to apply a six (6) inch top soil covering without it all rolling down the hill. The Swift Creek floodplain is experiencing ongoing siltation. Unless actions are taken to stabilize the existing fill area, siltation of Swift Creek itself may occur. The grading plan for the existing landfill called for 2:1 slopes adjacent to Swift Creek; however, field observation would indicate the slopes are considerably steep- er than that called for on the plan. The existing fill slopes adjacent to Swift Creek appear to be too steep and too high to be remediated by any existing on-site equipment. The adjacent site is in appar- ent violation of the County's Erosion and Sediment Control Ordinance. The existing site should be brought into conformance prior to any filling on the proposed site; however, if necessary, it would be appro- priate to allow limited, controlled exca- vation in the proposed landfill area to aid in the correction of problems in the exist- ing fill area, provided appropriate plans are approved by Environmental Engineering and implemented accordingly. (Condition 3) Due to the significant topographic relief of the proposed landfill area, the poten- tial for siltation of adjacent property and streams, including Swift Creek, appears even greater than that of the existing landfill. The topographic configurations of the area are conducive to the 5 87S005/BSJAN7/FEB25N utilization of standard sediment basins with risers (Condition 5). It may be necessary to utilize portions of the adja- cent property to the west or areas on this property outside the buffer for sedimentation protection. The presence of a stream through the limits of the proposed landfill could also present drainage, erosion, and sediment control problems. The applicant's engineer should determine if filling the existing pond would allevi- ate problems. Final plans should address provisions necessary to alleviate the continuously flowing nature of the main stream through the site. The Environmental Engineering Department has been provided with a draft copy of "General Standards for Permit Issuance for Construction-Demolition-Debris (CDD) Land- fill" which represents the criteria under which the applicant intends to design, construct, and operate the landfill. The conditions recommended by Environmental Engineering reflect issues and concerns raised by the proposed landfill expansion. This document has also been submitted to the Virginia Department of Waste Management for their review and approval. Environ- mental Engineering has reviewed this docu- ment and offers the following comments: In addition to soil, stone, rock, land clearing material, brick, block, wood, and sheet rock, which were permitted to be depos- ited per the Conditional Use of Case 82S071 to permit a landfill on the adjacent site, wire, packing material, shingles, glass, pipe (copper, cast iron, and PVC), metal and plastic construction materials, and empty metal or plastic containers for such materials as paints will be utilized as fill material. Some of this expanded list has already been observed dumped in the existing landfill. (Condition 11) The limits of the 100 year flood- plain of Swift Creek must be 6 8~"~05/BSJAN7/FEB25N Ce de Me Ce shown on final plans. The final plans must indicate that the proposed landfill will not en- croach into the floodplain, as outlined in the document. The document stipulates that the "outside limits of any deposition area shall not be closer than fifty (50) feet to any surface stream." As noted previously, there is an on-site surface stream which traverses the prop- erty. Measures must be taken to either conform to the setback outlined in the document or to eliminate the surface flow of the stream. The document indicates that the site will be secured by a four (4) foot high hog wire fence to preclude trespassing, indiscrim- inate dumping, and define the limits of the fill area. Mea- sures should be taken to protect the buffer area along the western property line. (Conditions 2 and 6) The document indicates that "the facility shall be designed to divert surface waters so that they do not run on the site." It would appear that it will be necessary to obtain easements from the adjacent property owner to the west to divert surface waters off of the site and to install ground water monitoring wells downstream from the site. (Conditions 7 and 14) There has been no fill slope specified in the document; there- fore, unless the Department of Waste Management requires some- thing flatter, a minimum 3:1 slopes should be shown on the final plan. Further, an opera- tional procedure should be for- mulated to enable the operators to proceed with the dumping in 7 87S005/BSJAN7/FEB25N Fire Service: such a manner as to achieve 3:1 final slopes. The document proposes six (6) inches of top soil with vegetative cover to stabilize the site. A six (6) inch top soil cap for the entire proposed 22.1 acre site is a massive amount of material, and does not appear to be available on-site. Final plans should address the exca- vation and stockpiling of on-site top soil, plus provide calcu- lations relative to the addition- al volume of top soil which needs to be transported from other locations to the site. Clover Hill Fire Station, Company #7. At present, fire service capability is adequate. The "General Standards for Permit Issuance for Construction-Demolition-Debris Land- fill" indicates that a fire control plan for the protection of the facility as a whole will be available for review, upon request by the responsible reviewing au- thority. Prior to any fill activity, the County Fire Department should review and approve the 'fire control plan. (Condition 19) General Plan (Western Area Land Use and Transporta- tion Plan - Proposed): Low density residential Transportation: The proposed use with have minimal impact on area traffic patterns. DISCUSSION A Conditional Use is requested with the intent of expanding an existing landfill operation in an Agricultural (A) District. On September 22, 1982, the Board of Supervisors approved a Conditional Use (Case 82S071) to permit the operation of a borrow pit and landfill on an adjacent 7.5 acre parcel. The adjacent landfill is now full and the applicant is in the process of completing reclamation. The applicant is g'"q05/BSJAN7/FEB25N currently requesting permission to expand the existing operation to include an adjacent 22.1 acre site for the disposal of land cleared and building materials. It is the applicant's intent to ultimately reclaim the site for pasture land. The proposed Western Area Land Use and Transportation Plmn designates the request parcel and surrounding area for low density residential develop- ment. Because of the limited future development anticipated in the area, the expansion and continued operation of a landfill on the request parcel should not have a significant impact on future residential development. Nevertheless, it is important that conditions which minimize the impact of the landfill on surrounding properties and which protect the health, safety, and general welfare of area residents. Condition 2 would require that a minimum fifty (50) foot buffer be provided along the western boundary of the site to provide adequate year-round screening for any existing or future residential development located adjacent to the fill site. Additional conditions similar to those imposed by the Commission and Board on the existing site are also recommended to insure environ- mental quality on-site and in the surrounding area. (Conditions 3-19) CASE HISTORY Planning Commission Meeting (1/20/87): On motion of Mr. O'Connor, seconded by Mr. Rowe, the Commission recom- mended approval of this request, subject to the conditions on pages 1, 2, and 3. AYES: Messrs. Miller, O'Connor, Cowan, and Rowe. ABSENT: Mr. Belcher. The Board of Supervisors on Wednesday, February 25, 1987, beginning at 2:00 p.m., will take under consideration this request. 9 87S005/BSJAN7/FEB25N zc u PLANTATION ESTATE~ ZC A II Ii II i',,,I 87S005 AMEND SH. 21 C.U.