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HomeMy WebLinkAboutNC0063720_Engineering Alternatives Analysis_20101221J A ulred JN Chernikov, Sergei From: Thurman Horne [thurmanhorne@earthlink.net] Sent: Tuesday, December 21, 2010 4:02 PM To: Chernikov, Sergei Cc: Michael A. Melton; David G. Schlobohm; Sprimont, Leigh A. Subject: EAA for Forest Ridge subdivision NCO063720 Attachments: ANCForestRidgeWWTPRevisedEAAAppendixA121510.doc Mr. Chemikov, In response to your message requesting revisions to the subject EAA, I have attached a revised Appendix A from the EAA which embodies the revisions to the cost estimate for the alternatives. Along with these revisions, I will address the comments made in your message. 1) 1 have further detailed and itemized the projected costs in the revised Appendix A. However, please be aware that upon reviewing the estimated costs for continuing operation and maintenance, using actual historical cost data accumulated by Aqua North Carolina, Inc. for similar WWTP's in North Carolina, the estimated annual costs for the alternative of continuing discharge have decreased from my original estimate. 2) 1 can not remove the estimated cost for removal of the existing WWTP, contents and components. If this discharge were to be eliminated, the existing WWTP could not be simply left as is, nor could it simply be emptied and left as is. This would leave an unacceptable risk to public health and safety. If operations of the WWTP were to be ceased, it would be unacceptable to all concerned to leave a structure to deteriorate from neglect, and to pose a potential concern to the health and safety of the general public. Leaving the tanks, etc. open and full would invite the proliferation of mosquitos, odors, etc. Removing the contents and leaving the open tanks would be a disregard for the possibility of tragic injury to any persons (e.g. children, juveniles, etc.) entering the site, regardless of whether such entry was lawful or invited. Aqua North Carolina, Inc. is responsible for this WWTP regardless of whether it continues operation or if operations were to cease. The cost of properly abandoning these facilities can not be ignored in doing any objective comparison of the costs associated with the various alternatives, regardless of whether the proper and safe closure of the facilities is required by NC DWQ. 3) 1 have inspected and reviewed the facilities and I am not aware of any major deficiencies. Overall, the facilities appear to be sound and show no signs of needing any major improvements. The facility has a history of compliance with the permit requirements. Based on my inspection, I have made a list of items that I consider to be minor repairs and improvements (handrails for safety) which I have included in the revised cost estimate.:Otherwise, the facilities appear to be in good operating condition and not showing any imminent need for major improvements. The revisions to the estimated costs are included in the attached revised Appendix A. Even with the inclusion of the additional costs for the minor repairs/improvements I have added, the decrease in the estimated annual operating costs result in an overall decrease in the projected Present Worth evaluation of the alternative for continued discharge, Hence, the conclusions and recommendation of the originally submitted EAA remain that continued operation and discharge from the existing WTTP is the viable alternative. I hope that this information is sufficient, but if you should need anything else, please advise. Sincerely, J. Thurman Horne, P.E. Horizon Engineering & Consulting, Inc. ----- Original Message -- From: Sprimont, Leigh A. To: Thurman Horne Sent: Monday, November 01, 2010 12:49 PM Subject: FW: EAA for Forest Ridge subdivision NCO063720 Hi Thurman. Can you please remind me where we stand on this request? Thanks! Leigh Sprimont Area Manager - Western Region Operations AQUA North Carolina, Inc. 4163 Sinclair St., Denver, NC 28037 Office: 704.489.9404, X57232 Cell: 704.530.0503 LASprimont@aquaamerica.com www.aguanorthcarolina.com From: Chernikov, Sergei [mailto:sergei.chernikov@ncdenr.gov] Sent: Friday, October 29, 2010 9:05 AM To: Sprimont, Leigh A. Subject: FW: EAA for Forest Ridge subdivision NCO063720 Dear Mr. Primont, We have reviewed the EAA for Forest Ridge subdivision that was submitted to DWQ on April 12, 2010 and found several deficiencies that have to be addressed. I sent the e-mail to Thurman Horne (please see below) on April 26, 2010 requesting additional information. I have not received a response from Mr. Horne to this date. I would greatly appreciate if you could contact him and convey him the message from DWQ regarding correction that have to be made to the EAA. Thank you! Sergei From: Chernikov, Sergei Sent: Monday, April 26, 2010 10:23 AM To: 'thurmanhorne@earthlink.net' Cc: Belnick, Tom Subject: EAA for Forest Ridge subdivision NCO063720 Thurman, I have reviewed the EAA you have submitted and have a few suggestions that have to be completed before EAA is approved: 1) Please submit itemized budget for Alternative #1(continued surface water discharge). 2) Please remove the cost of dismantling the WWTP structures for Alternative # 2 (connection to the POTW) . We require only removal of the sludge, which is included in the budget. 3)1 have reviewed the latest inspection report and pictures of the facility. Based on this information, it is clear that major improvements are needed. Therefore, you need to include the cost of improvements/repairs in the budget for Alternative #1(continued surface water discharge). Thank you! Appendix A Cost Analysis of Alternatives Revised 12/15/10 Note: Cost estimates based on, National Construction Estimator, Means Building Construction Cost Data, consultation with contractors and the engineers experience. 1. Continued Surface Water Discharge at Existing 33,000 GPD Flow Rate: (Using Existing WWTP) - Revised 12/15/10 The facilities have been inspected and reviewed to determine what improvements appear to be needed. The existing facilities are in reasonably good condition and there are no anticipated needs for any substantial repairs or improvements, other than the relatively minor repairs listed below. Capital Cost: Item: Quantity: Unit Cost: Cost: Clean and recoat walls L.S. 10,000 $ 10,000 of existing sludge holding tanks. Replace flow splitter box L.S. 29500 29500 Extend handrails around 150 L.F. 20 3,000 entire perimeter of WWTP's (Note: After extending handrail, most of the existing grating will no longer be required. Unneeded sections can be removed. Retain only those sections in sound condition (i.e. not rusted or weak).) Repair hatch hinges on L.S. 200 200 influent pump station and clean/paint control panel support Replace doors on blower 2 250 500 building Paint blower building L.S. 500 500 Replace chemical 1 400 400 (chlorine and dechlorine tablet) storage shed with a Rubbermaid or similar storage shed Note: There are no engineering costs associated with the above activities. Total Capital Cost = $ 179100 Operation & Maintenance Cost (Present Value, 20 year life, 5.875% interest): Operation & Maintenance (WWTP and sewer system); Based on actual operation and maintenance costs for similar systems in North Carolina as compiled by Aqua North Carolina, Inc. O & M costs per connection per year: 1. Labor (operators, assistants, etc.) $ 108.00 2. Chemicals (chlorine, dechlorine, etc.) 30.00 3. Laboratory costs 19.00 4. Outside labor (sludge removal, repairs, etc.) 23.00 5. Electrical utilities 63.00 6. General overhead (billing, administration, etc.) 30.00 7. Communications 7.00 9. Transportation 19.00 Total = $ 299.00 Annual O & M cost = $ 299/connection x 57 connections = $ 17,043/year PV Annual Cost = $197,482 Total Net Present Value = $ 214,582 2. Connection to nearest available POTW Sewer System at 33,000 GPD Flow Rate: Install new gravity sewer outfall to convey wastewater from the influent sewer to the junction with existing municipal sewer. Aqua North Carolina would pay sewer use fees and new connection surcharges to the City/County Utilities Division. Aqua North Carolina would be responsible for all costs associated with constructing the sewer connection and for continuing to operate and maintain the existing sewer system in the Forest Ridge Subdivision. Distance = approx. 225 LF Capital Cost: Item: Quantity: Unit Cost: Cost: 12" gravity sewer 225 LF $ 120 $ 27,000 Rock excavation 20 CY $ 100 $ 21000 Manholes 3 Ea $ 4,000 $ 12,000 Connect influent from LS $ 5,000 $ 5,000 Exist. lift station to new Gravity outfall, plug Exist. outfall Abandon, dismantle and remove LS $ 25,000 $ 257000 Exist. WWTP and influent lift Station, fill and grade Pump WWTP contents into sewer LS $ 4,000 $ 4,000 Dispose sludge off site LS $ 21000 $ 21000 Erosion control LS $ 3,000 $ 3,000 Surveying 1 day $ 1,500 $ 1,500 Local Government Plan Review Fee LS $ 500 $ 500 Legal LS $ 10,000 $ 10,000 Sub -total $ 92,000 Engineering Design 10 % 9,200 C Engineering Construction 5 % Progress Inspection Services 4,600 Total Capital Cost = $ 1059800 Local Government surcharge for new connections: *$ 21 /two months/connection for 13 years Surcharge = $ 21 x 57 connections x 6 x 13 years = $ 93,366 Operation & Maintenance Cost: Local government fees: * Volume charge = $ 4.29/100 CF of water use by Forest Ridge community Based on water use records for 12/07/06 — 06/20/07, total water use = 325,116 CF for 195 days Therefore, average daily water use = 1,667.3 CF/day Projected average annual water use = 608,550 CF/yr. Estimated Annual sewer use charges = $ 4.29/CCF x 6085.5 CCF/yr = $ 26,107/yr Annual operation, repair and maintenance of Forest Ridge sewer system: Estimated cost = $ 4,500/yr/mile sewer x 1 mile (approx. length of sewer) = $ 4,500/yr Total annual costs = $ 30,607/yr (Present Value, 20 year life, 5.875% interest) Present Value Annual Cost = $ 3549651 Total Net Present Value = $ 553,817 * See Appendix G "City/County Utilities Service Fees and Water Use Records" M 3. Land Based Disposal: 3A. Subsurface Disposal at 33,000 GPD Flow Rate: Based on the soil survey information and the engineer's field observations, the soils in this area appear to be severely limited as a medium for subsurface disposal. In the event that it was found to be apparently a cost effective alternative, an in depth site specific soil investigation would need to be done to confirm that the soils could in fact be used. However, for the purpose of comparing the potential alternatives within the scope of this evaluation, it will be assumed that a typical low design loading rate would be workable. Therefore, it will be assumed that a loading rate of 0.20 gpd/sq. ft. is acceptable. Therefore, based on the design flow, the area required for subsurface disposal is: 33,000 gpd / 0.20 gpd/sq. ft. = 165,000 SF Whereas -it is required to maintain an equal size area as a reserve for future repair, the total required area is 330,000 SF. Assuming a roughly rectangular field (500 ft x 660 ft. for the initial drain field plus repair and in order to maintain the required buffers to property lines, etc.), the minimum estimated land required is 600,000 SF or 13.8 acres. Forest Ridge is a moderately dense developed community. As a consequence of this, there are no areas available for consideration that are currently owned by Aqua North Carolina or within the existing subdivision. Hence, any consideration for subsurface disposal must be based on the possibility of acquiring areas of sufficient size off site. Capital Cost: Item: Quantity: Unit Cost: Cost: 4" sewer drain in 3' trenches 55,000 LF $ 18 $ 990,000 Site Clearing 14 acre $ 6,500 $ 91,000 Land 13.8 acres $ 35,000 $ 483,000 Septic Tanks 50 Ea. 21500 $ 125,000 3" FM 1,500 LF $ 20 $ 30,000 Pump Station 1 Ea $ 60,000 $ 60,000 Surveying 3 days $ 1,500 $ 4,500 Soils Investigation 2 day $ 1,500 $ 39000 Phase I Environmental Site Assessment LS $ 3,000 $ 3,000 Erosion control LS $ 10,000 $ 10,000 Electrical LS $ 12,000 $ 12,000 Legal LS $ 10,000 $ 10,000 Sub -total $ 1,821,500 Engineering 10 % 182,150 C. Engineering Construction 5 % Progress Inspection Services Total Capital Cost 91,075 _ $ 29094,725 Operation & Maintenance Cost (Present Value, 20 year life, 5.875 % interest): Annual Cost O & M of drain field, Contract operations services = $ 1,500/mo. _ $ 18,000/yr Annual electrical charges = $ 180/month X 12 mo/yr = $ 2,160/yr Annual septage pumping = $ 1,000/yr PV Annual Cost = $ 245086 Total Net Present Value = $ 29339,911 Total Annual Cost = $ 21,160 313. Surface Irrigation at 33,000 GPD Flow Rate: Surface irrigation preliminary design is based on an assumed allowable application rate of 0.75 is per week and a required storage basin for 60 days design flow. Based on the design flow of 33,000 gpd, this results in an estimated disposal area of 11.3 acres. Allowing a recommended 50% repair area, the required total area is 17 acres. Assuming a roughly rectangular field (800 ft x 925 ft. for the initial spray field plus repair and in order to maintain the required 150 foot buffer to property lines), the minimum estimated land required is approximately 31 acres. Surface irrigation requires prior treatment to reduce raw wastewater constituents to levels acceptable for surface application. Therefore, the operating costs estimated in Alternative 1. for continuing to operate the existing wastewater treatment facilities are included in the estimate of the costs for surface application. Capital Cost: Item: Quantity: Unit Cost: Cost: 1,980,000 gal. storage basin (1) $ 383,080 Surface irrigation system 492,228 SF $ 0.35 $ 172,280 Monitoring wells 6 ea $ 4,000 $ 24,000 Land 31 acres $ 35,000 $ 1,085,000 Fencing 4,500 LF $ 6.00 $ 27,000 3" FM 1,500 LF $ 20 $ 309000 Manholes 2 Ea $ 4,000 $ 8,000 Pump Station 1 Ea $ 60,000 $ 60,000 Surveying 2 days $ 1,500 $ 31000 Soils Investigation 2 days $ 1,500 $ 3,000 Phase I Environmental Site Assessment LS $ 3,000 $ 3,000 Erosion control LS $ 10,000 $ 10,000 Easement/Right of Way 2,000 LF $ 10 $ 209000 Clearing (approx. 25 acre) 25 acre $ 6,500 $ 162,500 Electrical LS $ 10,000 $ 10,000 Legal LS $10,000 $ 10,000 Engineering Engineering Construction Progress Inspection Services Sub -total $ 2,010,860 10% 5% Total Capital Cost 201,086 100,543 $ 2,3121489 C (1) Storage: Excavation 12,280 cu. Yds. @ $ 6.00/yd = $ 73,680 Compaction and Lining 88,400 SF @ $ 3.50/SF = $ 309,400 Sub -total = $ 383,080 Operation & Maintenance Cost (Present Value, 20 year life, 8% interest): Annual Cost O & M of spray field, Contract operations services = $ 1,750/mo. _ $ 21,000/yr Annual electrical charges = $ 500/month = $ 6,000/yr Operation & Maintenance (WWTP and sewer system) = $ 23,940/yr ($35/mo./connect. X 57 connect. X 12 mo/yr) Total Annual Cost = $ 50,940 PV Annual Cost = $ 5909255 Total Net Present Value = $ 2,902,744 Phernikov, Sergei From: Chernikov, Sergei Sent: Friday, October 29, 2010 9:05 AM To: 'LASprimont@aquaamerica.com' Subject: FW: EAA for Forest Ridge subdivision NC0063720 Dear Mr. Primont, We have reviewed the EAA for Forest Ridge subdivision that was submitted to DWQ on April 12, 2010 and found several deficiencies that have to be addressed. 1 sent the e-mail to Thurman Horne (please see below) on April 26, 2010 requesting additional information. I have not received a response from Mr. Horne to this date. 1 would greatly appreciate if you could contact him and convey him the message from DWQ regarding correction that have to be made to the EAA. Thank you! Sergei From: Chernikov, Sergei Sent: Monday, April 26, 2010 10:23 AM To: 'thurmanhorne@earthlink.net' Cc: Belnick, Tom Subject: EAA for Forest Ridge subdivision NC0063720 Thurman, I have reviewed the EAA you have submitted and have a few suggestions that have to be completed before EAA is approved: 1) Please submit itemized budget for Alternative #1(continued surface water discharge). 2) Please remove the cost of dismantling the WWTP structures for Alternative # 2 (connection to the POTW) . We require only removal of the sludge, which is included in the budget. 3)1 have reviewed the latest inspection report and pictures of the facility. Based on this information, it is clear that major improvements are needed. Therefore, you need to include the cost of improvements/repairs in the budget for Alternative #1(continued surface water discharge). Thank you! Sergei Sergei Chernikov, Ph.D. Environmental Engineer II NPDES-West Phone: 919-807-6393, fax 919-807-6495 1617 Mail Service Center Raleigh, NC 27699-1617 Express mail: 512 North Salisbury St. Raleigh, NC 27606 E-mail correspondence to and from this address maybe subject to the North Carolina Public Records Law and may be disclosed to third parties. Chernikov, Sergei From: Chernikov, Sergei Sent: Friday, October 29, 2010 8:58 AM To: 'thurmanhorne@earthlink.net' Subject: FW: EAA for Forest Ridge subdivision NCOO63720 Thurman, Please let me know if you received the e-mail that I sent you on April 26, 2010 (please see below). Thank you! Sergei Sergei Chernikov, Ph.D. Environmental Engineer II Complex Permitting Unit Phone: 919-807-6393, fax 919-807-6495 1617 Mail Service Center Raleigh, NC 27699-1617 Express mail: 512 North Salisbury St. Raleigh, NC 27606 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Chernikov, Sergei Sent: Monday, April 26, 2010 10:23 AM To: 'thurmanhorne@earthlink.net' Cc: Belnick, Tom Subject: EAA for Forest Ridge subdivision NC0063720 Thurman, I have reviewed the EAA you have submitted and have a few suggestions that have to be completed before EAA is approved: 1) Please submit itemized budget for Alternative #1(continued surface water discharge). 2).Please remove the cost of dismantling the WWTP structures for Alternative # 2 (connection to the POTW) . We require only removal of the sludge, which is included in the budget. 3)1 have reviewed the latest inspection report and pictures of the facility. Based on this information, it is clear that major improvements are needed. Therefore, you need to include the cost of improvements/repairs in the budget for Alternative #1(continued surface water discharge). Thank you! Sergei Sergei Chernikov, Ph.D. Environmental Engineer 11 NPDES-West Phone: 919-807-6393, fax 919-807-6495 1617 Mail Service Center Raleigh, NC 27699-1617 Express mail: 512 North Salisbury St. Raleigh, NC 27606 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. Fia Mr. Mike Mickey NC DENR Winston-Salem Regional Office 585 Waughtown St Winston-Salem, NC 27107 Dr. Sergei Chernikov NC DENR/DWQ/NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 March 31, 2010 Gentlemen, as requested in your letter dated March 8, 2010 and as required by our current NPDES permit, enclosed please find an Engineering Alternatives Analysis for Aqua NC's Forest Ridge WWTP. Should you have any questions or concerns, please don't hesitate to contact me at 704-489-9404, X57232 or 704-530-0503 (cell) or by e-mail: LASprimont@aquaamerica.com Sincerel Leigh S mont Area Manager —Western Region Operations Aqua North Carolina, Inc. r P V 4163 Sinclair St"= - Denver, NC 28037 APR 12010 1 Existing Wastewater Discharge Engineering Alternatives Analysis Aqua North Carolina, Inc. Forest Ridge Subdivision Wastewater treatment Facilities Clemmons, N.C. Forsyth County Applicant Aqua North Carolina, Inc. 202 MacKenan Court Cary, N.C. 27611 Ph: 919-663-9404 Contact: Scott Smart Facility Forrest Ridge Subdivision WWTP Aqua North Carolina, Inc. Clemmons, N.C. Prepared by: J. Thurman Horne, P.E. Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 Ph: 704-788-4455 Date: March 26, 2010 on Existing Wastewater Discharge Engineering Alternatives Analysis APR 12010 FM DENR-WATER QUALrry Im Aqua North Carolina, Inc. fm Forest Ridge Subdivision Wastewater treatment Facilities Clemmons, N.C. Forsyth County Im Im FM M fm Applicant Aqua North Carolina, Inc. 202 MacKenan Court Cary, N.C. 27611 Ph: 919-663-9404 Contact: Scott Smart Facility Forrest Ridge Subdivision WWTP Aqua North Carolina, Inc. Clemmons, N.C. Prepared by: J. Thurman Horne, P.E. Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 Ph: 704-788-4455 Date: March 26, 2010 1 Ow 0r Table of Contents Page ■m Section 1: General................................................................................3 1.01 Introduction: .................................................................... 3 m, 1.02 Scope:..... .......................................3 .... ........................... Section 2: Background Information........................................................3 2.01 Project Area: ................................................................... 3 2.02 Site Characteristics: .......................................................... 3 2.03 Receiving Stream Characteristics........................................4 Section 3: Existing Utilities....................................................................4 Im 3.01 Public Facilities: ............................................................... 4 3.02 Private Facilities: .............................................................. 4 IM Section 4: Alternatives For Service.........................................................4 ME 4.01: On site surface and/or subsurface disposal........... ......5 4.02: Wastewater Reuse: ........................................................ 6 4.03: Surface Water Discharge................................................6 rM" 4.04: Combination of Alternatives.............................................6 M Section 5: Summary and Conclusions: ................................................... 7 Section 6: Proposed Wastewater Treatment Facilities: .............................. 7 MM Appendix A Cost Analysis of Alternatives Appendix B USGS Location Map and Aerial Photo `� Appendix C Possible Route for Connection to POTW Appendix D Possible Location for Subsurface Land Disposal Appendix E Possible Location for Surface Land Disposal em Appendix F SCS Soil Maps and Soil Descriptions Appendix G City/County Utilities Service Fees and Water Use Records fm MR 3 me • Section 1: General '" 1.01 Introduction: Aqua North Carolina, Inc. (Aqua NC) currently owns and operates an existing waste water treatment plant (WWTP) serving Forest Ridge Subdivision, located southeast of Clemmons, N.C. in Forsyth County. The community homes are served by an existing package waste water treatment plant. The existing wastewater treatment plant is a dual path 33,000 gpd package type, extended aeration process facility which has an influent lift station, aeration basins, secondary clarification, aerobic sludge holding, effluent chlorine contact basin (tablet feeder), effluent dechlorination basin (tablet feeder) and effluent flow meter/recorder. The treated effluent is discharged into the Blanket Creek, Class WS-IV waters in the Yadkin -Pee Dee River basin. The existing waste water treatment plant has a good overall compliance history with NC DWQ regulations. Pursuant to the terms of the existing NPDES permit, Aqua NC has commissioned this investigation to consider alternatives to the existing method of wastewater treatment and to evaluate the possibility of using an alternative means of wastewater treatment to serve the community. M FM am so am up 1.02 Scope: The scope of this project is limited to the investigation and evaluation of alternatives for treating and/or disposing of the wastewaters from the Forrest Ridge community. This includes consideration of the feasibility of continuing the existing discharge and options for eliminating the existing discharge. Section 2: Background Information 2.01 Project Area: The service area is limited to the existing Forest Ridge community. All homes are single family residences. All wastewater is domestic strength. The existing discharge coordinates are: Longitude: -80 deg. 23 min. 40 sec. W Latitude: 36 deg. 03 min. 37 sec. N 2.02 Site Characteristics: The subdivision is located in an urban portion of Forsyth County that is experiencing significant growth and development. The general area has soil characteristics which are limited the possibility of on site treatment and disposal. Hence, the development was built with a centralized am 4 M sewer collection system for treatment and discharge in accordance with the NPDES permit. Terrain is generally rolling but has been graded level at the wastewater treatment plant site. 2.03 Receiving Stream Characteristics: The receiving stream is Blanket Creek, Class WS-IV waters in the Yadkin -Pee Dee River basin. The receiving stream appears to have good flow and slope which creates desirable turbulence and aeration. This receiving stream has no known outstanding features or characteristics that should preclude the continuation of the existing discharge. There are no known endangered or threatened species and these are not identified as impaired waters. I=" Section 3: Existing Utilities am 3.01 Public Facilities: The nearest existing public sewer is located just east of the existing WWTP where the City of Winston Salem has extended sewer lines and placed a pump station at a location that is approximately 75 feet from the existing WWTP. Connection to the pump station could be made by extending a sewer line from the existing influent sewer, and connecting to the existing sewer at the City pump station. The distance that would be required for gravity sewers to be installed would be approximately 225 ft. (See Appendix C.) 3.02 Private Facilities: There are no known existing private sewer utilities within any reasonable proximity of Forest Ridge that would be available for consideration as a possible alternative. A review of available information revealed that there are no such private facilities that would be a reasonable, viable, potential alternative within a search radius of over two miles around the WWTP. There are several existing private, single family discharge units located near the existing WWTP and within the two mile search radius, but, due to their inherent limitations of size, these are not a practical alternative for consideration. Section 4: Alternatives for Wastewater Service 4.01: On site surface and/or subsurface disposal: Subsurface Disposal: sw 5 Appendix E contains portions of soil survey reports that provide insight as to the suitability of the soils for subsurface disposal. As described in the report, these soils are mainly Siloam, Clifford, Fairview and Casville soils with characteristics that are very limited with respect to the potential for subsurface disposal. For the purposes of evaluating subsurface disposal as a potential alternative, an application rate of 0.20 gpd/SF will be used as a reasonable assumption for a possible loading rate for these type soils. Of course, before a final design and/or approval could be given, an actual on site soils evaluation would be required. Subsurface disposal requires buffers and land for the drainfields as well as equal areas of suitable soil, be available and maintained as potential repair/replacement areas. Forest Ridge is a moderately dense developed community. There are no ,,.► practical, useable areas within the property that could be considered for subsurface disposal. Given the limitations described in the attached soil survey and discussed above, it is doubtful that this is a viable option. A full and extensive soils investigation of potential sites would be necessary to confirm if useable areas are available. In A* keeping with the state guidance for alternatives evaluation, the cost effectiveness of this alternative is further evaluated to determine if a detailed soils analysis is appropriate. The costs associated with this option are estimated in Appendix A. This option would require that the discharge be conveyed to an acquired site having sufficient area for subsurface disposal and a suitable reserve area of equal size, and that these areas include adequate buffers from property lines, homes, wells, etc. MW Surface Irrigation: Disposal by surface irrigation requires storage capacity for periods of inclement weather when application is not allowable. Therefore, consideration of this as a possible alternative must also include the provision of storage of the treated waste waters during periods of inclement weather. As noted earlier, the soils surveys for this area have determined this to be severely limited potential for on site subsurface disposal. Likewise, the soil surveys for this area have determined this to be very limited for surface irrigation. Consideration of this alternative is based on an assumed allowable application rate of 0.75 inches per week which is based on a typical range of 0.5 to 1.0 inches per week for this geographic area and the soil conditions generally described in the soils survey. Storage requirements for this area are typically in the range of 45 to 90 days. For purposes of this assessment, a storage requirement of 60 days will be assumed. MR 6 Due to the size of areas needed for surface irrigation and to maintain the required buffers, the only possible alternative for on site disposal, either by subsurface or surface application, would require the acquisition of off site properties for disposal. The degree of treatment required for surface application would be virtually the same as required for treatment and discharge. Although the additional cost of conveyance and the additional costs for on site disposal should readily be recognized as a significant cost increase as compared to the alternative of e" improving/replacing the existing WWTP, an estimate of the costs for this alternative is included in Appendix A for comparison. The evaluation is based on a very conservative assumption that the nearest available lands that could be reasonably used would actually be available. A comparison of the costs were made first, using the best (lowest cost) reasonable assumptions. It would obviously be necessary to perform a more detailed site investigation and ascertain if the property owner would consider allowing these lands to be acquired for this purpose. 4.02: Wastewater Reuse Options for reuse of wastewater for this area are essentially nil. Reuse is usually associated with non -potable uses such as irrigation. This becomes potentially more viable if there is a need or outlet for reuse such as irrigation of a golf course. This area does not have a golf course within a reasonable proximity, nor are there FM any other viable options for reuse associated with the subdivision or in the surrounding area. M 4.03: Surface Water Discharge This is the current method of wastewater treatment/disposal. There are no plans No to upgrade or possibly expand the capacity of the existing facilities. The existing wastewater treatment facilities are considered to be in overall good condition and there are no significant compliance issues or other reasons to anticipate the need FM for any substantial modifications within the foreseeable future. An estimate of the costs for the continuation of this alternative is included in so Appendix A for comparison. 4.04: Combination of Alternatives am Alternatives to discharge that may be technologically feasible, such as connection to the nearest public sewer, subsurface disposal and/or surface irrigation, could `w not be employed in conjunction with the current method of disposal (surface water discharge) and yield any reduction in capital expenditures. The evaluation of am 7 astl ' alternatives shows that these alternatives are clearly not viable due to the overwhelming magnitude of associated cost. Combining one of these alternatives while continuing the existing discharge, yields modest reduction in the cost for non -discharge alternatives alone but merely increases the overall costs. There would be no overall reduction in capital costs and the operating costs for combining surface discharge with either of the other alternatives would be greater than for any single alternative that might be selected. In short, whereas the conclusion that continued surface discharge is the viable option due to the substantial differential in capital and operating costs, any addition of an additional alternative would merely make the cost differential worse. OM Section 6: Summary and Conclusions FM As can be seen from a comparison of the net present value of the various alternatives, there is a wide difference between the cost estimate of the option of continuing discharge and options to eliminate the existing discharge. With respect to considering the possibility of continuing to operate the existing wastewater treatment facility, compared to the cost of the next most cost effective and reliable alternative (connection to City sewer) the estimated Net Present Value is approximately 200 % greater. This represents a difference of $ 276,418. In light of the financial impracticality, it is not necessary to further pursue whether connection is politically acceptable to the POTW, or whether land based disposal or reuse options are workable. By far, the most practical and cost effective alternative is the continued use of the existing wastewater treatment facilities and the continued discharge to surface waters. The conclusion of this evaluation process is that Forest Ridge will continue to •- operate the existing wastewater treatment facilities and to discharge into surface waters. Section 6: Proposed Wastewater Treatment Facilities Based on the findings of this evaluation, it has been concluded that the most economical and practical alternative is to continue discharge to surface waters. There are no modifications or improvements required in association with am continuing to operate the existing wastewater treatment facilities. am Appendix A Cost Analysis of Alternatives Note: Cost estimates based on, National Construction Estimator, Means Building Construction Cost Data, consultation with contractors and the engineers experience. FM FM fm FM am FM .. 8 OW V ran ` 1. Continued Surface Water Discharge at Existing 33,000 GPD Flow Rate: (Using Existing WWTP) As noted previously, the existing facilities are in reasonably good condition and there are no anticipated needs for any substantial repairs or improvements. Therefore, there are no projected capital expenditures for this alternative. Operation & Maintenance Cost (Present Value, 20 year life, 5.875% interest): Operation & Maintenance system) - p (WWTP and sewers stem $ 23,940 ($35/mo./connect. X 57 connect. X 12 mo/yr) PV Annual Cost - $ 277,399 U' Total Net Present Value = $ 277,399 "��-rvwcv Mmµ- /G e-wM1Yr �NY -r�'I me FM fm sr FAIR ' MR FJM F, W Em EM fm FM 10 2. Connection to nearest available POTW Sewer System at 33,000 GPD Flow Rate: Install new gravity sewer outfall to convey wastewater from the influent sewer to the junction with existing municipal sewer. Aqua North Carolina would pay sewer use fees and new connection surcharges to the City/County Utilities Division. Aqua North Carolina would be responsible for all costs associated with constructing the sewer connection and for continuing to operate and maintain the existing sewer system in the Forest Ridge Subdivision. Distance = approx. 225 LF Capital Cost: Item: Quantity: Unit Cost: Cost: 12" gravity sewer 225 LF $ 120 $ 27,000 Rock excavation 20 CY $ 100 $ 2,000 Manholes 3 Ea $ 41000 $ 12,000 Connect influent from LS $ 5,000 $ 5,000 Exist. lift station to new Gravity outfall, plug Exist. outfall Abandon, dismantle and remove LS $ 25,000 $ 25,000 Exist. WWfP and influent lift Station, fill and grade Pump WWTP contents into sewer LS $ 4,000 $ 4,000 Dispose sludge off site LS $ 2,000 $ 2,000 Erosion control LS $ 3,000 $ 3,000 Surveying 1 day $ 1,500 $ 1,500 Local Government Plan Review Fee LS $ 500 $ 500 Legal LS $ 10,000 $ 10,000 Sub -total $ 92,000 Engineering Design 10 % 9,200 fm 11 pq • Engineering Construction 5 % 49600 Progress Inspection Services Total Capital Cost = $ 1059800 Local Government surcharge for new connections: an 121/two months/connection for 13 years MM Surcharge = $ 21 x 57 connections x 6 x 13 years = $ 93,366 MM Operation & Maintenance Cost: Local government fees: raw * Volume charge = $ 4.29/100 CF of water use by Forest Ridge community FM Based on water use records for 12/07/06 — 06/20/07, total water use = 325,116 CF for 195 days Therefore, average daily water use = 1,667.3 CF/day Projected average annual water use = 608,550 CF/yr. Estimated Annual sewer use charges = $ 4.29/CCF x 6085.5 CCF/yr = $ 26,107/yr Annual operation, repair and maintenance of Forest Ridge sewer system: Estimated cost = $ 4,500/yr/mile sewer x 1 mile (approx. length of sewer) _ $ 4,500/yr Total annual costs = $ 30,607/yr (Present Value, 20 year life, 5.875% interest) MR Present Value Annual Cost = $ 354,651 im Total Net Present Value = $ 653,817 * See Appendix G "City/County Utilities Service Fees and Water Use Records" so Im MM 12 Na 3. Land Based Disposal: 3A. Subsurface Disposal at 33,000 GPD Flow Rate: Based on the soil survey information and the engineer's field observations, the soils in this area appear to be severely limited as a medium for subsurface disposal. In the event that it was found to be apparently a cost effective alternative, an in depth site specific soil investigation would need to be done to confirm that the soils could in fact be used. However, for the purpose of comparing the potential alternatives within the scope of this evaluation, it will be assumed that a typical low design loading rate would be workable. FM Therefore, it will be assumed that a loading rate of 0.20 gpd/sq. ft. is acceptable. Therefore, based on the design flow, the area required for subsurface disposal is: Ma 33,000 gpd / 0.20 gpd/sq. ft. = 165,000 SF Whereas it is rfm equired to maintain an equal size area as a reserve for future repair, the total required area is 330,000 SF. Assuming a roughly rectangular field (500 ft x 660 ft. for the initial drain field plus repair and in order to maintain the required buffers to no property lines, etc.), the minimum estimated land required is 600,000 SF or 13.8 acres. Forest Ridge is a moderately dense developed community. As a consequence of this, ,M there are no areas available for consideration that are currently owned by Aqua North Carolina or within the existing subdivision. Hence, any consideration for subsurface disposal must be based on the possibility of acquiring areas of sufficient size off site. Capital Cost: M" Item: Quanti Unit Cost: Cost: 4" sewer drain in 3' trenches 559000 LF $ 18 $ 990,000 Site Clearing 14 acre $ 69500 $ 91,000 Land 13.8 acres $ 35,000 $ 483,000 Septic Tanks 50 Ea. 2,500 $ 125,000 3" FM 11500 LF $ 20 $ 30,000 Pump Station 1 Ea $ 60,000 $ 60,000 Surveying 3 days $ 1,500 $ 4,500 Soils Investigation 2 day $ 11500 $ 31000 Phase I Environmental Site Assessment LS $ 31000 $ 3,000 Erosion control LS $ 10,000 $ 10,000 Electrical LS $ 12,000 $ 12,000 Legal LS $ 10,000 $ 109000 Sub -total $ 118219500 Engineering 10 % 182,150 am 13 EM NM am M4 FAR am F" go ME am MR FJOR Im ON Engineering Construction 5 % 91,075 Progress Inspection Services Total Capital Cost = $ 29094,726 Operation & Maintenance Cost (Present Value, 20 year life, 5.875 % interest): Annual Cost 0 & M of drain field, Contract operations services = $ 1,500/mo. _ $ 18,000/yr Annual electrical charges = $ 180/month X 12 mo/yr = $ 2,160/yr Annual septage pumping = $ 1,000/yr PV Annual Cost = $ 245,186 Total Net Present Value = $ 29339,911 Total Annual Cost = $ 21,160 0" 14 MR • 313. Surface Irrigation at 33,000 GPD Flow Rate: Surface irrigation preliminary design is based on an assumed allowable application rate of 0.75 " per week and a required storage basin for 60 days design flow. Based on the design flow of 33,000 gpd, this results in an estimated disposal area of 11.3 acres. Allowing a recommended 50% repair area, the required total area is 17 acres. Assuming a roughly rectangular field (800 ft x 925 ft. for the initial spray field plus repair and in order to maintain the required 150 foot buffer to property lines), the minimum estimated land 'J' required is approximately 31 acres. M Surface irrigation requires prior treatment to reduce raw wastewater constituents to levels acceptable for surface application. Therefore, the operating costs estimated in Alternative 1. for continuing to operate the existing wastewater treatment facilities are included in the estimate of the costs for surface application. Capital Cost: Item: Quantity: Unit Cost: Cost: F' 1,980,000 gal. storage basin (1) $ 383,080 Surface irrigation system 492,228 SF $ 0.35 $ 172,280 PER Monitoring wells 6 ea $ 41000 $ 24,000 Land 31 acres $ 35,000 $ 1,085,000 Fencing 41500 LF $ 6.00 $ 27,000 3" FM 1,500 LF $ 20 $ 30,000 Manholes 2 Ea $ 4,000 $ 8,000 Pump Station 1 Ea $ 60,000 $ 60,000 Surveying 2 days $ 11500 $ 31000 Soils Investigation 2 days $ 1,500 $ 31000 Phase I Environmental Site Assessment LS $ 3,000 $ 3,000 Erosion control LS $ 10,000 $ 10,000 Easement/Right of Way 2,000 LF $ 10 $ 20,000 Clearing (approx. 25 acre) 25 acre $ 61500 $ 1629500 Electrical LS $ 10,000 $ 10,000 Legal LS $ 10,000 $ 10,000 Im MO MR Engineering Engineering Construction Progress Inspection Services Sub -total $ 2,010,860 10% 5% Total Capital Cost 201,086 100,543 $ 2,3129489 MR 15 ern (1) Storage: Excavation 12,280 cu. Yds. @ $ 6.00/yd = $ 73,680 Compaction and Lining 88,400 SF @ $ 3.50/SF = $ 309,400 Sub -total = $ 383,080 Im Operation & Maintenance Cost (Present Value, 20 year life, 8% interest): fW Annual Cost MR O & M of spray field, Contract operations services = $ 1,750/mo. _ $ 21, 000/yr Annual electrical charges = $ 500/month = $ 6,000/yr Operation & Maintenance (WWTP and sewer system) _ $ 23,940/yr ($35/mo./connect. X 57 connect. X 12 mo/yr) Total Annual Cost = $ 50,940 PV Annual Cost = $ 6909255 Total Net Present Value = $ 2,902,744 M" so am MM Im MR ON 16 Appendix B USGS Map and Aerial Photo Existing Discharge: Longitude: -80 deg. 23 min. 40 sec. W J.1 . j Latitude: 36 deg. 03 min. 37 sec. N Exist.WWTP 1���_ tF'� /.. •" �: 71 Forest Ridge Subdivision - WWTP Horizon Engineerinq & Consulting, Inc. USGS Topographical Map 2510 Walker Road Forsyth County, N.C. Scale: I:I 1,990 Mt. Pleasant, N.C. 28124 March 17, 2010 Forest Ridge Subdivision - W WTP Aerial Photo W Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 17, 2010 Forsyth County, N.C. Scale: I" = 170' 17 Appendix C Possible Route for Connection to POTW go ■11 ON am 4w M so t= [L� MR so OR SSMH- I BOLT —DOWN, TELL TBM #1 VENTED LID / INVIN 7739.43 PAINT SPOT — TOP OF WET WELL FA&EMENTELEV. = 749.96 -------------- ' DIA. SEWER SS WET WELL — — — -- — — -- — .— — — — EX 20' PERM. EAgeLE:k SS S SS — 2" SAN. SEWER - — — — — — — — — — — — 6'x5' SS SS — .� `. — .— VALVE — .— — — — - 94'26' VAU —. — — CUT & PLUG FLOW EXISTING PACKAGE WWTP TO BE ABANDONED HYD. 4' DIAI WET WEr , I 1 � i PROP. 20' , PERMANENT ' EASEMENT10 CUT & on PLUG 6* SSMH 3 , SOLI SEALED' ' LID BACKFLOW PREVENTER WATER METER 13 ---- S� ` -- 6o i t EX-SSMH i (RETAIN) WATER- -- � ti n,-, . CUT & —/ - - - - - 85�4 H YD. ' I ----------- 4_p_VC DU7FA�� --------------- ------ 1 I h� PLUG 1 I (ICI ! I i SSMH-2 I SOLID, SEALED I LID BACKFLOW I j PREVENTER 1 60' R/W 40' I � WATER t METER —�'S ___ EX. SSMH __ a-- -------___------------�--- ----- AUGUST DRIVE MAIN _ _.- _ .— _jy ___--__--------------- — FM FM W 6" FORCE MAIN ----- - --------_-- - - 0- an. Note: This plan is an excerpt from an original plan prepared by ARCADIS, Inc. dated 6/26/2006 il Forest Ridge Subdivision - W WTP Possible Route for Connection to POTW Forsyth County, N.C. Scale: I " = 50' Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 17, 2010 j 18 Appendix D Possible Location for Subsurface Land Disposal Forest Ridge Subdivision - W WTP Possible Location for Subsurface Disposal Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 17, 2010 Forsyth County, N.C. Scale: 1— 304' 19 Appendix E Possible Location for Surface Land Disposal Prop. Surface T Disposal A E Forest Ridge Subdivision - W WTP Possible Location for Surface Disposal Forsyth County, N.C. Scale: V'= 622' l'. Exist. WWTP Horizon Engineering & Consulting Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 17, 2010 ram+ r I s 20 Is i Appendix F SCS Soil Maps and Soil Descriptions USDA United States Department of Agriculture o FRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Forsyth County, North Carolina ANC - Forest Ridge WWTP March 17, 2010 a� Am fm Ow Preface Soil surveys contain information that affects land use planning in survey areas. They an highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, ,m community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. f, Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://soils.usda.gov/sgio and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (http://offices.sc.egov.usda.gov/locator/app? agency=nres) or your NRCS State Soil Scientist (http://soils.usda.gov/contact/ state officeso. Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department ' of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Soil Data Mart Web site or the NRCS Web Soil Survey. The Soil Data Mart is the data storage site for the official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation,,genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means IR ON for communication of program information (Braille, large print, audiotape, etc.) should so contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. P" fm 6. 3 On MR ` am Contents Preface....................................................................................................................2 HowSoil Surveys Are Made.................................................................................5 SoilMap..................................................................................................................7 SoilMap................................................................................................................8 Legend..................................................................................................................9 ............................................................ Map Unit Legend ........................... .........10 MapUnit Descriptions........................................................................................10 Forsyth County, North Carolina......................................................................12 CaC—Casville sandy loam, 6 to 10 percent slopes....................................12 CIB—Clifford sandy loam, 2 to 6 percent slopes.........................................12 CIC—Clifford sandy loam, 6 to 10 percent slopes.......................................13 CoA—Codorus loam, 0 to 2 percent slopes, frequently flooded.................14 Om FaD—Fairview fine sandy loam, 10 to 15 percent slopes ...........................15 FcC2—Fairview clay loam, 6 to 10 percent slopes, moderately eroded ..... 16 Gu—Gullied land.........................................................................................17 RaC—Rasalo fine sandy loam, 6 to 10 percent slopes...............................17 RaD—Rasalo fine sandy loam, 10 to 15 percent slopes .............................18 SmC—Siloam sandy loam, 4 to 10 percent slopes.....................................19 SmD—Siloam sandy loam, 10 to 15 percent slopes...................................19 SmF—Siloam sandy loam, 15 to 45 percent slopes ................... .......20 Soil Information for All Uses...............................................................................22 SoilReports........................................................................................................22 SanitaryFacilities............................................................................................22 Sewage Disposal (ANC Forrest Ridge VWVTP).........................................22 WasteManagement........................................................................................26 Agricultural Disposal of Wastewater by Irrigation and Overland Flow (ANC - Forrest Ridge WWTP)...............................................................26 References............................................................................................................31 OEM MM MWO MR MR MR MO FM an How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas MR (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classificatioh used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the OW M Custom Soil Resource Report individual soils with similar soils in the same taxonomic class in other areas so that they could confine data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil - landscape model and predictions and to verify the classification of the soils at specific Once the model is refined, a significantly smaller number of locations. soil -landscape measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to �+ bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area. they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. no a�n _ Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil fm map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. MM FM am MR MR 41 7 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 I 1 Custom Soil Resource Report Soil Map 5538W 553900 554000 5541M 5U200 SSC300 55 w 5545M 5545W 554I00 g 553500 36'3'S3' 8 • M317W '1� 35' 3' 28' Naps e:15.3008 pmlee w A size(8.5' z „'(slieeL N Melm A a 200 30D Feel 0 250 500 1.000 1.500 W3'2T Custom Soil Resource Report MAP LEGEND Area of Interest (AOQ Very Stony Spot Area of Interest (AOI) ,� Wet Spot Po Soils i Other Soil Map Units Special Line Features Special Point Features r Gully L V Blowout Short Steep Slope ® Borrow Pit Other X Clay Spot Political Features Closed Depression 4) Cities x Gravel Pit Water Features ,. Gravelly Spot iL Oceans ® Landfill Streams and Canals A Lava Flow Transportation Rails Marsh or swamp Interstate Highways �. Mine or Quarry r . US Routes p Miscellaneous Water Major Roads � Perennial Water h Local Roads Rock Outcrop + Saline Spot Sandy Spot = Severely Eroded Spot 0 Sinkhole 3) Slide or Slip 0 Sodic Spot 9 Spoil Area Q Stony Spot MAP INFORMATION Map Scale: 1:5.300 if printed on A size (8.5" x 11') sheet. The soil surveys that comprise your AOI were mapped at 1:15,840. Please rely on the bar scale on each map sheet for accurate map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://viebsolisurvey.nres.usda.gov Coordinate System: UTM Zone 17N NAD83 This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Forsyth County, North Carolina Survey Area Data: Version 11, Jun 19, 2009 Date(s) aerial images were photographed: 6/18/2006 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. No am • W MM PAM ow f" Custom Soil Resource Report Map Unit Legend Forsyth County, North Carolina (NC087) Map Unit Symbol Map Unit Name Acres In A01 Percent of A01 CaC Casviile sandy loam, 6 to 10 percent slopes Clifford sandy loam, 2 to 6 percent slopes Clifford sandy loam, 6 to 10 percent slopes 0.0 8.1 14.7 0.0% 5.8% — 10.6% CIB CIC CoA FaD FcC2 Gu Codorus loam, 0 to 2 percent slopes, frequently flooded Fairview fine sandy loam, 10 to 15 percent slopes Fairview clay loam, 6 to 10 percent slopes, moderately eroded Guilled land Rasalo fine sandy loam, 6 to 10 percent slopes Rasalo fine sandy loam, 10 to 15 percent slopes 18.8 19.7 3.8 6.1 6.1 11.4 13.4% 14.1°% 2.7°% 4.4% 4.4% 8.2% RaC RaD SmC — Siloam sandy loam, 4 to 10 percent slopes 20.2 14.5°% SmD Siloam sandy loam, 10 to 15 percent slopes 18.9 13.5% SmF Siloam sandy loam, 15 to 45 percent slopes — _ 12.0 139.8 _ - 8.6% 100.0% Totals for Area of Interest ME Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. o, 10 am Custom Soil Resource Report Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been .., observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficierif information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. MW An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. no Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. an Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. �. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha - Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. an Om am 4 Custom Soil Resource Report OW Forsyth County, North Carolina CaC—Casville sandy loam, 6 to 10 percent slopes OM Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 37 to 60 inches OW Mean annual air temperature: 59 to 66 degrees F Frost -free period. 200 to 240 days Map Unit Composition , no Casville and similar soils: 85 percent Description of Casville "R Setting Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope No Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Convex Parent material: Saprolite derived from granite and gneiss and/or schist MR Properties and qualities Slope: 6 to 10 percent Depth to restrictive feature: More than 80 inches 'M Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 7.8 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 6 inches: Sandy loam 6 to 36 inches: Clay 36 to 50 inches: Sandy loam 50 to 80 inches: Clay loam no CIB—Clifford sandy loam, 2 to 6 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet M. Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 50 to 59 degrees F Frost -free period. 160 to 190 days an WO 12 0" • Custom Soil Resource Report MW Map Unit Composition Clifford and similar soils: 90 percent Description of Clifford Setting Landforrn: I nterfluves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Convex Parent material: Saprolite derived from granite and gneiss and/or schist Properties and qualities Slope: 2 to 6 percent MR Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high ,W (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None 00 Available water capacity: Moderate (about 8.2 inches) Interpretive groups - Land capability (nonirrigated): 2e Typical profile 0 to 6 inches: Sandy loam 6 to 15 inches: Sandy clay loam en 15 to 40 inches: Clay 40 to 52 inches: Clay loam 52 to 80 inches: Sandy loam EM am CIC—Clifford sandy loam, 6 to 10 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 50 to 59 degrees F Frost -free period. 160 to 190 days Map Unit Composition MR Clifford and similar soils: 90 percent Description of Clifford Setting Landform: l nterfl uves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down -slope shape: Convex �., 13 Custom Soil Resource Report Across -slope shape: Convex Parent material: Saprolite derived from granite and gneiss and/or schist Properties and qualities Slope: 6 to 10 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 8.2 inches) Interpretive groups Land capability (nonirrigated): 3e No Typical profile 0 to 6 inches: Sandy loam 6 to 15 inches: Sandy clay loam Im 15 to 40 inches: Clay 40 to 52 inches: Clay loam 52 to 80 inches: Sandy loam PM FEB CoA—Codorus loam, 0 to 2 percent slopes, frequently flooded Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 40 to 48 inches Mean annual air temperature: 50 to 59 degrees F Frost -free period. 160 to 190 days Map Unit Composition OW Codorus and similar soils: 85 percent Minor components: 5 percent Description of Codorus Setting Landform: Flood plains Down -slope shape: Concave Across -slope shape: Linear Parent material. Loamy alluvium derived from igneous and metamorphic rock Properties and qualities no Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 6 to 24 inches Frequency of flooding: Frequent Frequency of ponding: None WX 14 dw Custom Soil Resource Report .4 Available water capacity: High (about 10.7 inches) Interpretive groups Land capability (nonirrigated): 4w Typical profile 0 to 8 inches: Loam 8 to 18 inches: Silty clay loam 18 to 30 inches: Loam 30 to 38 inches: Silt loam 38 to 50 inches: Silt loam 50 to 80 inches: Silt loam Minor Components Hatboro, undrained Percent of map unit: 5 percent Landform: Depressions on flood plains Down -slope shape: Concave Across -slope shape: Linear rm FaD—Fairview fine sandy loam,10 to 15 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 59 to 66 degrees F Frost -free period. 200 to 240 days MMap Unit Composition Fairview and similar soils: 85 percent MM Description of Fairview Setting Landform: Hillslopes on ridges R, Landform position (two-dimensional): Backs lope Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Convex Parent material: Saprolite derived from granite and gneiss and/or schist Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high -� (0.57 to 1.98 in/hr) ` Depth to water table: More than 80 inches Frequency of flooding: None ® Frequency of ponding: None 15 e� Custom Soil Resource Report Available water capacity: Moderate (about 7.4 inches) Interpretive groups Land capability (nonimgated): 3e Typical profile 0 to 8 inches: Sandy loam 8 to 27 inches: Clay 27 to 35 inches: Sandy clay loam 35 to 80 inches: Sandy loam FcC2—Fairview clay loam, 6 to 10 percent slopes, moderately eroded Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 40 to 48 inches Mean annual air temperature: 50 to 59 degrees F Frost -free period. 160 to 200 days em Map Unit Composition Fairview, moderately eroded, and similar soils: 78 percent Description of Fairview, Moderately Eroded Setting Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Convex �+ Parent material: Saprolite derived from schist and/or gneiss Properties and qualities Slope: 6 to 10 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 8.3 inches) Interpretive groups Land capability (nonirrigated): 3e Om Typical profile 0 to 9 inches: Sandy clay loam 9 to 24 inches: Clay am 24 to 29 inches: Clay loam 29 to 80 inches: Loam fm 16 Custom Soil Resource Report Gu—Gullied land Map Unit Composition Gullied land: 100 percent Description of Gullied Land MW Setting Parent material: Residuum weathered from mica schist and/or other micaceous metamorphic rock FMR Interpretive groups Land capability (nonimigated): 8e MR RaC—Rasalo fine sandy loam, S to 10 percent slopes fm Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 37 to 60 inches Im Mean annual air temperature: 59 to 66 degrees F Frost -free period: 200 to 240 days Map Unit Composition Rasalo and similar soils: 85 percent Description of Rasalo Setting Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope FM Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Convex am Parent material. Saprolite derived from diorite and/or gabbro and/or diabase and/or gneiss Properties and qualities Me Slope: 6 to 10 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None ` Available water capacity. Moderate (about 8.3 inches) Interpretive groups Land capability (nonirrigated): 3e im 17 M Custom Soil Resource Report .., Typical profile 0 to 9 inches: Fine sandy loam 9 to 23 inches: Clay 23 to 36 inches: Clay loam 36 to 80 inches: Fine sandy loam RaD—Rasalo fine sandy loam, 10 to 15 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 59 to 66 degrees F Frost -free period: 200 to 240 days �+ Map Unit Composition Rasalo and similar soils: 75 percent Description of Rasalo Setting Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear Across -slope shape: Convex Parent material: Saprolite derived from diorite and/or gabbro and/or diabase and/or gneiss Properties and qualities Slope: 10 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity. Moderate (about 8.3 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 9 inches: Fine sandy loam 9 to 23 inches: Clay 23 to 36 inches: Clay loam 36 to 80 inches: Fine sandy loam M �, 18 Custom Soil Resource Report SmC—Siloam sandy loam, 4 to 10 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 40 to 48 inches Mean annual air temperature: 50 to 59 degrees F Frost -free period: 160 to 200 days Map Unit Composition Siloam and similar soils: 85 percent Description of Siloam Setting f+ Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope go Down -slope shape: Linear Across -slope shape: Convex Parent material: Saprolite derived from diorite and/or gabbro and/or diabase andfor gneiss Properties and qualities Slope: 4 to 10 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.57 in/hr) Depth to water table: More than 80 inches Frequency of flooding. None Frequency of ponding: None Available water capacity: Very low (about 2.3 inches) Interpretive groups Land capability (noninigated): 4e MIR Typical profile 0 to 7 inches: Sandy loam 7 to 15 inches: Sandy clay loam 15 to 80 inches: Weathered bedrock MR SmD—Siloam sandy loam, 10 to 15 percent slopes MR Map Ynit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 40 to 48 inches Mm Mean annual air temperature: 50 to 59 degrees F MR 19 an no • Custom Soil Resource Report Frost -free period: 160 to 200 days Map Unit Composition Siloam and similar soils: 90 percent .. Description of Siloam Setting Landform: Hillslopes on ridges " Landfonn position (two-dimensional): Backslope Landfor n position (three-dimensional): Side slope Down -slope shape: Linear FM Across -slope shape: Convex Parent material: Saprolite derived from diorite and/or gabbro and/or diabase and/or gneiss Properties and qualities Slope: 10 to 15 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Drainage class: Well drained "OR Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.57 in/hr) Depth to water table: More than 80 inches FM Frequency of flooding: None Frequency of ponding. None Available water capacity: Very low (about 2.3 inches) , rm Interpretive groups Land capability (nonirrigated): 6e Typical profile 0 to 7 inches: Sandy loam 7 to 15 inches: Sandy clay loam 15 to 80 inches: Weathered bedrock Im Im SmF—Siloam sandy loam,16 to 45 percent slopes Map Unit Setting Elevation: 200 to 1,400 feet Mean annual precipitation: 40 to 48 inches Mean annual air temperature: 50 to 59 degrees F A. Frost -free period: 160 to 200 days Map Unit Composition Siloam and similar soils: 90 percent Description of Siloam Setting Landform: Hillslopes on ridges Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down -slope shape: Linear 20 FAM FAR fm F" MR Ow Custom Soil Resource Report Across -slope shape: Convex Parent material: Saprolite derived from diorite and/or gabbro and/or diabase and/or gneiss Properties and qualities Slope: 10 to 45 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.57 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of poriding: None Available water capacity. Very low (about 2.3 inches) Interpretive groups Land capability (nonirrigated): 6e Typical profile 0 to 7 inches: Sandy loam 7 to 15 inches: Sandy clay loam 15 to 80 inches: Weathered bedrock 21 mom MR No Soil Information for All Uses Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Sanitary Facilities This folder contains a collection of tabular reports that present soil interpretations related to sanitary facilities. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Sanitary facilities interpretations are tools designed to guide the user in site selection for the safe disposal of sewage and solid waste. Example interpretations include septic tank absorption fields, sewage lagoons, and sanitary landfills. FM Sewage Disposal (ANC - Forrest Ridge WWTP) IM This table shows the degree and kind of soil limitations that affect septic tank absorption fields and sewage lagoons. The ratings are both verbal and numerical. Be Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect these uses. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are IM moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more ,W features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). ,�, 22 a� Custom Soil Resource Report Septic tank absorption fields are areas in which effluent from a septic tank is distributed into the soil through subsurface tiles or perforated pipe. Only that part of the soil between depths of 24 and 72 inches or between a depth of 24 inches and a restrictive layer is evaluated. The ratings are based on the soil properties that affect absorption of the effluent, construction and maintenance of the system, and public health. Saturated hydraulic conductivity (Ksat), depth to a water table, ponding, depth to bedrock or a cemented pan, and flooding affect absorption of the effluent. Stones and boulders, ice, and bedrock or a cemented pan interfere with installation. Subsidence interferes with installation and maintenance. Excessive slope may cause lateral seepage and surfacing of the effluent in downslope areas. Some soils are underlain by loose sand and gravel or fractured bedrock at a depth of less than 4 feet below the distribution lines. In these soils the absorption field may not adequately filter the effluent, particularly when the system is new. As a result, the ground water may become contaminated. fm Sewage lagoons are shallow ponds constructed to hold sewage while aerobic bacteria decompose the solid and liquid wastes. Lagoons should have a nearly level floor surrounded by cut slopes or embankments of compacted soil. Nearly impervious soil material for the lagoon floor and sides is required to minimize seepage and °� contamination of ground water. Considered in the ratings are slope, saturated hydraulic conductivity (Ksat), depth to a water table, ponding, depth to bedrock or a cemented pan, flooding, large stones, and content of organic matter. `m Saturated hydraulic conductivity (Ksat) is a critical property affecting the suitability for sewage lagoons. Most porous soils eventually become sealed when they are used as sites for sewage lagoons. Until sealing occurs, however, the hazard of pollution is severe. Soils that have a Ksat rate of more than 14 micrometers per second are too porous for the proper functioning of sewage lagoons. In these soils, seepage of the effluent can result in contamination of the ground water. Groundwater contamination is also a hazard if fractured bedrock is within a depth of 40 inches, if the water table is high enough to raise the level of sewage in the lagoon, or if floodwater overtops the lagoon. A high content of organic matter is detrimental to proper functioning of the lagoon because it inhibits aerobic activity. Slope, bedrock, and cemented pans cart cause construction problems, and large stones can hinder compaction of the lagoon floor. If the lagoon is to be uniformly deep throughout, the slope must be gentle enough and the soil material must be thick enough over bedrock or a cemented pan to make land smoothing practical. Information in this table is intended for land use planning, for evaluating land use FM alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. a, Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. M �. 23 =a w rW M on Custom Soil Resource Report Report —Sewage Disposal (ANC - Forrest Ridge WWTP) [Onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] Sewage Disposal- Forsyth County, North Carolina Map symboland soil name Pct. of map unit S@ptic tank absorption fields Sewage lagoons Rating class and limiting features Value Rating class and limiting features Kit CaC--Casville sandy loam, 6 to 10 percent slopes 85 Very limited Slow water movement Slope 1.00 0.01 - - --- 0.50 0.50 0.01 - --- Very limited Slope Seepage _..—. -- -------- -- Somewhat limited Seepage Slope Very limited Slope Seepage Very limited Casville 1.00 0.92 CIB--Clifford sandy loam, 2 to 6 percent slopes V--�-- 90 90 Somewhat limited Slow water movement Somewhat limited Slow water movement Slope Very limited-------- --- Flooding Depth to saturated zone Seepage, bottom layer Slow water movement Somewhat limited Slope Slow water movement Clifford 0.50 0.32 CIC—Clifford sandy loam, 6 to 10 percent slopes Clifford 1.00 0.50 CoA--Codorus loam, 0 to 2 percent slopes, frequently flooded - -- - 85 Codorus � - 85 1.00 1.00 1.00 0.50 0.63 0.50 Flooding 1.00 Depth to saturated zone Seepage -- T Very limited Slope Seepage 1.00 1.00 Fat}-Falrview fine sandy loam, 10 to 15 percent slopes Fairview 1.00 0.50 61 24 Custom Soil Resource Report Sewage Dlsposal- Forsyth County, North Carolina 1 OP,sytnbol Bred soil name Pct of map unit Septic tank absorption fields Sewage lagoons Rating class and limiting features Value Rating class and limiting features vid(1e., FcC2-Fairview Gay loam, 6 to 10 percent slopes, moderately eroded Fairview, moderately eroded 78 Very limited Seepage, bottom layer Slow water movement Slope Not rated Very limited Slow water movement 1.00 0.50 0.01 Very limited Slope Seepage Not rated 1.00 1.00 100 Gu--Gullied land Guilied land RaC-Rasalo fine sandy loam, 6 to 10 percent slopes 85 Rasalo Very limited 1.00 Slope 1.00 75 85 Slope Very limited Slow water movement Slope Very limited Depth to bedrock Slope 0.01 1.00 0.84 Seepage 0.32 RaD-Rasalo fine sandy loam. 10 to 15 percent slopes Rasalo Very limited Slope 1.00 Seepage 0.32 SmC-Siloam sandy loam, 4 to 10 percent slopes 1.00 0.01 Very limited Depth to soft bedrock Slope Seepage Siloam 1.00 1.00 0.18 SmD-Siloam sandy loam, 10 to 15 percent slopes Siloam 90 Very limited T Very limited Depth to bedrock Slope Very limited - Y^ 1.00 0.84 Depth to soft bedrock Slope Seepage 1.00 1.00 0.18 SmF-Siloam sandy loam, Is to 45 percent slopes Siloam 90 Very limited - - Depth to bedrock Too steep - -- - - 1.00 1.00 Depth to soft bedrock Slope Seepage 1.00 - — -� --- - --- - -- 1.00 0.18 25 +.n we • Custom Soil Resource Report ON Waste Management This folder contains a collection of tabular reports that present soil interpretations related to waste management. The reports (tables) include all selected map units and components for each map unit, limiting features and interpretive ratings. Waste management interpretations are tools designed to guide the user in evaluating soils for use of organic wastes and wastewater as productive resources. Example interpretations include land application of manure, food processing waste, and municipal sewage sludge, and disposal of wastewater by irrigation or overland flow process. Agricultural Disposal of Wastewater by Irrigation and Overland Flow (ANC - Forrest Ridge WWTP) Soil properties are important considerations in areas where soils are used as sites for the treatment and disposal of organic waste and wastewater. Selection of soils with properties that favor waste management can help to prevent environmental damage. This table shows the degree and kind of soil limitations affecting the treatment of wastewater, including municipal and food -processing wastewater and effluent from lagoons or storage ponds. Municipal wastewater is the waste stream from a municipality. It contains domestic waste and may contain industrial waste. It may have received primary or secondary treatment. It is rarely untreated sewage. Food - processing wastewater results from the preparation of fruits, vegetables, milk, cheese, and meats for public consumption. In places it is high in content of sodium and chloride. In the context of this table, the effluent in lagoons and storage ponds is from facilities used to treat or store food -processing wastewater or domestic or animal waste. Domestic and food -processing wastewater is very dilute, and the effluent from the facilities that treat or store it commonly is very low in content of carbonaceous and nitrogenous material; the content of nitrogen commonly ranges from 10 to 30 milligrams per liter. The wastewater from animal waste treatment lagoons or storage ponds, however, has much higher concentrations of these materials, mainly because the manure has not been diluted as much as the domestic waste. The content of nitrogen in this wastewater generally ranges from 50 to 2,000 milligrams per liter. When wastewater is applied, checks should be made to ensure that nitrogen, heavy metals, and salts are not added in excessive amounts. The ratings in the table are for waste management systems that not only dispose of and treat wastewater but also are beneficial to crops. The ratings are both verbal and am numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect agricultural waste management. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. fm 26 Custom Soil Resource Report Numerical ratings in the tables indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). Disposal of wastewater by irrigation not only disposes of municipal wastewater and wastewater from food -processing plants, lagoons, and storage ponds but also can improve crop production by increasing the amount of water available to crops. The ratings in the table are based on the soil properties that affect the design, construction, ® management, and performance of the irrigation system. The properties that affect design and management include the sodium adsorption ratio, depth to a water table, ponding, available water capacity, Ksat, slope, and flooding. The properties that affect construction include stones, cobbles, depth to bedrock or a cemented pan, depth to a water table, and ponding. The properties that affect performance include depth to bedrock or a cemented pan, bulk density, the sodium adsorption ratio, salinity, reaction, and the cation -exchange capacity, which is used to estimate the capacity of a soil to adsorb heavy metals. Permanently frozen soils are not suitable for disposal of wastewater by irrigation. Overland flow of wastewater is a process in which wastewater is applied to the upper ® reaches of sloped land and allowed to flow across vegetated surfaces, sometimes called terraces, to runoff -collection ditches. The length of the run generally is 150 to 300 feet. The application rate ranges from 2.5 to 16.0 inches per week. It commonly exceeds the rate needed for irrigation of cropland. The wastewater leaves solids and nutrients on the vegetated surfaces as it flows downslope in a thin film. Most of the water reaches the collection ditch, some is lost through evapotranspiration, and a small amount may percolate to the ground water. The ratings in the table are based on the soil properties that affect absorption, plant growth, microbial activity, and the design and construction of the system. Reaction and the cation -exchange capacity affect absorption. Reaction, salinity, and the sodium �' adsorption ratio affect plant growth and microbial activity. Slope, saturated hydraulic conductivity (Ksat), depth to a water table, ponding, flooding, depth to bedrock or a cemented pan, stones, and cobbles affect design and construction. Permanently F—M-, frozen soils are unsuitable for waste treatment. Report —Agricultural Disposal of Wastewater by Irrigation and me Overland Flow (ANC - Forrest Ridge WWTP) FM am no [Onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] Agricultural Disposal of Wastewater by Irrigation and Overland Flow— Forsyth County, North Carolina Wip:symbol alid+sdtl'name Pct. of map unit Disposal of wastewater by Irrigation Overland flow of wastewater Rating class and limiting features Value Rating class and limiting features Value Gu—Gullied land Not rated Gullied land 100 Not rated 27 IM FAR em M9 MM me am MW no w.. Custom Soil Resource Report Agricultural Disposal of Wastewater by Irrigation and Overland Flow- Forsyth County, North Carolina Mapaymbol and soil name Pct. of map unit Disposal of wastewater by Irrigation Overland flow of wastewater Rating class and limiting features Value Rating class and limiting features Value_ CIB--Clifford sandy loam, 2 to 6 percent slopes 80 80 85 85 Very limited Too acid Low adsorption Too steep for surface application Very limited Too steep for surface application Too acid Low adsorption Too steep for sprinkler _ application - Very limited Depth to saturated zone - Flooding Too acid Very limited Slow water movement Too steep for surface application Too steep for sprinkler application Too acid Very limited Too steep for surface application Slow water movement 1.00 0.47 0.08 1.00 1.00 0.47 0.10 - 1.00 1.00 0.01 1.00 - 1.00 0.10 0.03 1.00 1.00 0.80 0.03 Very limited Seepage Too acid - -- - -- Low adsorption - - Very limited Seepage Clifford _-_- - - '--- - CIC--Clifford sandy loam, 6 to 10 percent slopes 1.00 1.00 0.47 Clifford 1.00 Too acid Low adsorption - Too steep for surface - application Very limited Flooding + - - ` Depth to saturated zone Seepage Too acid -- - - --- 1.00 0.47 0.22 CoA-Codorus loam, 0 to 2 percent slopes, frequently flooded Codorus _ -+- - 1.00 1.00 �- - 1.00 RaC--Rasalo fine sandy loam, 6 to 10 percent slopes Rasalo 0.01 Very limited Seepage Too steep for surface application Too acid Very limited `-- Seepage _ Too steep for surface _ application Too acid 1.00 0.22 0.03 RaD-Rasalo fine sandy loam, 10 to 15 percent slopes _ Rasalo 75 1.00 1.00 Too steep for sprinkler application Too acid 0.03 28 Me FM M MM MM rim FM Custom Soil Resource Report Agricultural Disposal of Wastewater by Irrigation and Overland Flow- Forsyth County, North Carolina Mawsymbol and,soll name PcL of Disposal of wastewater by irrigation Overland flow of wastewater map unit Rating class and limiting Value Rating class and limiting Value features features FaD-Fairview fine sandy loam, 10 to 15 percent slopes 85 Very limited Very limited Fairview Too steep for surface 1.00 Seepage - 1.00 application Too steep for sprinkler 0.78 Too steep for surface 1.00 application application Too acid Low adsorption 0.77 0.21 Too acid Low adsorption _ 0.77 0.21 FcC2-Fairview clay loam, 6 to 10 percent slopes, moderately eroded 78 Very limited Too steep for surface 1.00 Very limited Seepage A - Fairview, moderately eroded 1.00 application Low adsorption 0.48 0.48 Low adsorption Too acid 0.21 Too steep for surface 0.22 Too steep for sprinkler 0.10 application Too acid _ 0.21 application CaC-Casville sandy loam, 6 to 10 percent slopes 85 Very limited Very limited _ - - Casville 1.00 Slow water movement 1.00 Seepage Too steep for surface 1.00 Too acid - -- 0.99 application Too acid 0.99 Too steep for surface 0.22 application Too steep for sprinkler 0.10 J application SmC-Siloam sandy loam, 4 to 10 percent slopes 85 1.00 Very limited Seepage Siloam Very limited Droughty 1.00 1.00 Depth to bedrock Too steep for surface 1.00 Depth to bedrock Too acid 1.00 0.77 application Too acid 0.77 Too steep for surface 0.22 application Slow water movement 0.22 29 Custom Soil Resource Report Agricultural Disposal of Wastewater by Irrigation and Overland Flow- Forsyth County, North Carolina Map symbol and soil name Pct of Disposal of wastewater by irrigation Overland flow of wastewater map unit Rating class and limiting Value Rating class and limiting Value features features SmD—Siloam sandy loam, 10 to 15 percent slopes Siloam 90 Very limited ; Very limited 1.00 Droughty i 1.00 Seepage Too steep for surface I 1.00 Depth to bedrock 1.00 application Depth to bedrock 1.00 Too steep for surface 1.00 Too steep for sprinkler 0.90 application 0.77 Too acid application Too acid 0.77 SmF—Siloam sandy loam, 15 to 45 percent slopes Very limited - --------- Droughty Too steep for surface �.- -- •Very limited _---._---- Seepage Depth to bedrock Siloam 80 1.00 1.00 1.00 1.00 application 1.00 Depth to bedrock 1.00 Too steep for surface application 0.77 Too steep for sprinkler 1.00 Too acid application Too acid 0.77 30 M References American Association of State Highway and Transportation Officials (AASHTO). 2004. F' Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. fm Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. FM National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://soils.usda.gov/ Soil Survey Staff.1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http://soils.usda.gov/ FOR Soil Survey Staff. 2006. Keys to soil taxonomy. 10th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http://soils.usda.gov/ an Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://soils.usda.gov/ United States Department of Agriculture, Natural Resources Conservation Service. �. National range and pasture handbook. http://www.giti.nres.usda.gov/ United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://soils.usda.gov/ United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. a. http://soils.usda.gov/ so 31 OM �. Custom Soil Resource Report United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. . .. 32 Appendix G City/County Utilities Service Fees and Water Use Records fan fm fm MR fm fm am w. , 21 mm Thurman Horne Page 1 of 3 From: "Thurman Home" <thurman home@earth link. net> To: "Thurman Home" <thurmanhome@earth link. net> Sent: Friday, March 26, 2010 11:37 AM Subject: Fw: Potential connection of Forest Ridge Subdivision ----- Original Message ----- From: Nick Seeba To: Thurman Home Cc: David Saunders Sent: Wednesday, March 24, 2010 9:18 AM Subject: Re: Potential connection of Forest Ridge Subdivision See my comments in red below: Nicholas J. Seeba ®" Utilities Services Coordinator City/County Utilities Division Phone: (336) 747-7306 Fax: (336) 727-8432 ow >>> On 3/24/2010 at 9:04 AM, "Thurman Horne" <thurmanhorne0earthlink.net> wrote: I Mr. Seeba, Thank you very much for the information below. This answers many of my questions but there are a few points for which I would appreciate some clarification. In the first bullet item of your message, you mention that there would be a $ 21 bi-monthly surcharge per service for 13 years. Is this $ 21, twice per month for each of the current 57 individual connections in the subdivision or is this just for the one sewer connection Aqua NC would be making ? This $21 charge will be once every two months for each of the 57 individual connections in the subdivision. In reviewing the list of rates and fees posted on your web site, in Part 6, 3. (b) there is a table of fees listed as "Capacity Fee for Sewer outside the Service Area (Section 129)" For example, the table indicates a fee of $12,000 for a 12" connection. I am not familiar with what you consider to be outside the service area. Would this fee be charged to Aqua, NC if the connection is made ? In Section 129 of our Sewerage System policy book, we list any connection made outside of Forsyth County. Aqua will not be expected to pay this $12,000 for their connection. Again, I appreciate the information and assistance you have provided and look forward your reply. Regards, Thurman Home Original Message From: Nick Seeba To: thurmanhome Cc: David Saunders; Ron Har rove Sent: Tuesday, March 23, 20101:56 PM Subject: Re: Potential connection of Forest Ridge Subdivision Mr. Horne: According to the April 3, 2006 letter to Mr. Cobb w/ Aqua the following statements are known, the rates have been updated to present rates: • Current Rate for August Drive Pump Station area customers is $4.29/100 cubic feet after last October's 9% increase in sewer rates + a $21 bi-monthly surcharge per service for a 13 year period beginning at the initiation of service. 3/26/2010 Page 2 of 3 MER an fm om • Charges will be based on meter reads taken from the water meters at the individual service locations and charged to Aqua as an aggregate. • Aqua will afford the cost of design and construction for piping the existing private system into the public system. All plans will be required to be approved by Utilities plan review staff. • No capital charges or special privilege charges will be assessed against any of Aqua's existing customers for sewer service, so long as Aqua owns and maintains the infrastructure used to convey the waste stream from it's customers to the public system. • No flow monitoring station is necessary if each sewer customer has a public water meter for our staff to read. If a Aqua customer's residence does not have public water service, public water service must be installed and all capital charges must be collected for that service. Figure $2,500 for each service. I hope this information is helpful. If you have any further questions, please feel free to contact me. Regards, Nick Nicholas J. Seeba Utilities Services Coordinator City/County Utilities Division Phone: (336) 747-7306 Fax: (336) 727-8432 >>> On 3/18/2010 at 4:57 PM, "thurmanhorne" <thurmanhorne@earthlink. net> wrote: Mr. Saunders, I am trying to evaluate the potential costs for eliminating the existing wastewater treatment plant now operated by Aqua North Carolina, which serves the Forest Ridge Subdivision near West Forsyth High School. I am aware that a pump station and sewer mains have been constructed immediately adjacent to the site. I am assembling a list of the estimated construction costs plus the estimated operating costs. In reviewing the files, I found a letter from you dated April 3, 2006, wherein you indicated the sewer charges would be $ 3.416/CCF, and based on actual meter readings for Forest Ridge subdivision. My first question is, has this rate increased and if so, what is that rate now? Is there a single meter that this useage is measured at, or is this some sumary of individual meters in the subdivision? What other fees or costs might we expect if the connection is made? I am particularly interested to know if there would be a connection fee or any type of capacity use charge (sometimes referred to as an impact fee) and of course, what these charges would be. Based on the correspondence I have reviewed in the files, it appears that there will not be a requirement to install and operate a flow metering station prior to the connection to the City sewer. Is that correct? These are my main questions and as you can see, I am trying to take into consideration all the long term costs (such as the sewer use charges) and the short term capital costs (tap fees, capacity use fees, etc.) so that, hopefully we can get a more complete picture of what the total financial considerations are. I would appreciate your help with these questions. I left a message at your office today and I hope that you will call me. I believe it would facilitate things if you could call me to discuss matters directly. I hope that you will call me at your earliest opportunity. My office phone is 704-788-4455 but please feel free to call me on my mobile phone (704- 467-2691) if you should happen to call when I am out of the office. I will be traveling tomorrow (Friday), leaving the office at about 9 AM, but I will still be available to talk with you if you can call. 61 I appreciate your assistance with this and look forward to talking with you. Sincerely, J. Thurman Home, P.E. Horizon Engineering & Consulting, Inc. 3/26/2010 c HEATER EAST WATER PURCHASES PURCHASED WATER W0100 & 710500 2006.2007 MY OF WINSTON S,ALEM - 2223230 � Au usl Or Pu mp unsp Station • Forest Ridge (07.33) - Barter - 6888 PRESENT PREVIOUS DATE METER METER Cublo FT TOTAL am READING SEWING U= Base QhR= BILL 01/02W 39,410 0 39.410 S 1.387.03 2/22/2007 116,816 39,410 76406 S 2,690.20 4/18/07 189,921 115,816 74105 S 2.609.24 6120/07 326,116 189,921 135,196 S 4,760.22 ✓ 325.116 (325,116) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total S 11,447.35 r� i I Fm_w F" SAW m Fm-q k era .r 2007-Sep-12 12:02 PM City of Vinston Sale 3367278448 2/3 ' Winston -Belem • Forsyth County U11tyudIRMW r •Saws r • Solid Wash plsposai UtElitl�slldminiats�tion • Eo. Box 2$11 a TIr4M- JMu NC 27102 • 78 5K72%8418 • hX 334OV-S432 April 3, 2006 Mr. Larry Cobb Sanford Holshoum, LLP• One Exchange Plaza ' 219 Fayetteville Street Mall, Suite 1000 Raleigh, NC 27601 Dear Mr. Cobb: r� i • i Pursuant to our recent conversations, the City/County Utility Co1nmission (CCUC) hereby agrees to provide bulls rate service to Aqua of NC (Aqua) to serve the Forest Ridge Subdivision. Aqua shall pay the rate of $3AI 61CCF. Based -on actual meter readings for the Forest Ridge Subdivision &e average consumption is 1700 of bi monthly. We would propose to bill Aqua based on the aggregate meter readings for the sewer customers in the subdivision. Based on the information at hand, the average sewer bill would be $29.03 per month On an annualized basis that would be $203,210. At its own expense, Aqua shall design and construct the pipe necessary to convey the wastewater from A ua s current collection Stern to a 9 sy point designated by die'CCUC in its collection system. Aqua shall remain exclusively liable to maintain the collection system tbroughout the Forest Ridge Subdivision up to the point that it connects with the CCUC's collection system. I In consideration for $2,900.00, to be paid by tlxe CCUC to Aqua upon execution of all effective hstruments, Aqua shall convey to the City of Winston-Salem, a 50' x 50' area of land, located on Tax Lot 102 of Block 4404D, on which the CCUC shall construct and operate a wastewater pump stition, Aqua shall also convey to the City a 30' permanent access and utility easement and a 15' temporary construction easement. The precise s location of these property interests is reflected in the drawings dated January 4, 2005, titled "Drawing for Fee Simple & Easement Acquisitions on Lot 102, Tax Block 4404D + for August Drive Pump Station" and propared by Allied Design, Inc., which are attached hereto and incorporated herein by reference, The instruments conveying these. instruroWs are also enclosed . t a. OM 2007-Sep-12 12:03 PM City of Winston Sale 3367278448 3/3 1Vlr. Lary Cobb April 3, 2006 Page Two Please indicate your understanding and acceptama of these twms by returning to me this letter having been signed below by the duly authorized Aqua representative. Thank you for your prompt and professional assist S D/Zbo MR David K. Saunders, P. E. City/County U h 'es Director ACCEPTANCE: AQUANORTFI INC. $Nkomo —W NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue, Governor Coleen H. Sullins, Director Dee Freeman, Secretary March 8, 2010 CERTIFIED MAIL ITEM 7009 1680 0002 2464 6418 - RETURN RECEIPT REQUESTED Mr. Thomas Roberts Aqua North Carolina, Inc. 202 MacKenan Court Cary, N.C. 27511 SUBJECT: Notice of Violation NPDES Permit NCO063720 Forest Ridge WWTP Forsyth County Dear Mr. Roberts: Your current permit was issued on January 16, 2009. Your permit contains the following requirement: A. (2) ENGINEERING ALTERNATIVES ANALYSIS (EAA) REQUIREMENT No later than 90 days following the effective date of this permit, the perm.ittee shall submit a detailed analysis of all available means to dispose of this facility's wastewater, including connection to any existing or future Wastewater Interceptor lines. This EAA shall be prepared in compliance with the Divisions guidance document for EAA's. If no'EAA is submitted, the Division may reopen and modify this permit to increase monitoring frequencies or change effluent limits as necessary to protect the receiving stream. The deadline for submission of the EAA was May 29, 2009. To date the Division has not received the EAA. This failure to submit required information is a violation of your permit. If you do not submit the required EAA by April 2, 2010, the Division will assess civil penalties against you. The Division will also likely re -open your permit as specified in the text above. Submit the completed EAA to: Mr. Mike Mickey NC DENR Winston-Salem Regional Office 585 Waughtown Street Winston-Salem, N.C. 27107 336-771-5000 mike. mickey@ncdenn goy Dr. Sergei Chernikov .NC DENR / DWQ / NP•DES 1617 Mail Service Center Raleigh, N.C. 27699-1617 919-807-6393 sergei.chernikovC@ncdenr.gov 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 512 North Salisbury Street, Raleigh, North Carolina 27604 Phone: 919 8076300 / FAX 919 807-6495 / Intemet: www.ncwaterquality.org An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper On e Carolina tura!!r� The Division's guidance document for EAAs is attached. If you have questions regarding preparation of the EAA, contact Mr. Mickey or Dr. Chernikov. cc: Central Files Winston-Salem Regional Office / Mike Mickey NPDES file ■ Complete Items 1, 2, and 3. Also complete Item 4 If Restricted Delivery is desired. IN Print your name and address on the reverse so that we can return the card to you. ■ Attach this card to the back of the mailpiece, or on the front If space permits. 1. Article Addressed to: THOMAS ROBERTS AQUA NORTH CAROLINA INC 202 MACKENAN COURT CARY NC 27511 signature ❑ Agent Is delivery address different from kern 19 ❑ Ye: If YES, enter delivery address below: ❑ No 3. ,,,SKKKervice Type Certified Mail ❑ Express Mail ❑ Registered ❑ Return Receipt for Merchandise ❑ Insured Mail ❑ C.O.D. 14. Restricted Delivery? (Extra Fee) ❑ yes Dellwry? (Extra Fee) ❑ Yes 2. Article Number (nansferrrom service label) 700 9 1680 0002 2464 6 418 PS Form 3811, February 2004 Domestic Return Receipt 102595-02-WI540 ,Guerra, Bob From: Mickey, Mike Sent: Monday, March 01, 2010 8:01 AM To: Guerra, Bob Subject: RE: EAA for NC0063720? Please send the NOV. Thanks, Mike. Mike Mickey Mike.Mickev@NCDENR.eov NC Division of Water Quality 585 Waughtown Street Winston-Salem, NC 27107 Phone: (336) 771-4962 FAX: (336) 771-4630 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Guerra, Bob [mailto:bob.guerra@ncdenr.gov] Sent: Monday, March 01, 2010 6:01 AM To: Mickey, Mike Cc: Weaver, Charles Subject: FW: EAA for NC0063720? I left a message last Thursday for Mr. Roberts at aqua north Carolina to discuss why we have not received an EAA. With your approval I would like to send a PC NOV if I do not hear from him by weds. If not let me know what you want CO to do. I visited this site and there is no practical reason why they should not connect to the interceptor which is 200 feet from the facility. I also heard from Winston Salem staff, prior to the inspection, that there may be some WQ impacts downstream of the facility in a small water body just south of august drive. I will wait for your input Thanks From: Weaver, Charles Sent: Friday, February 26, 2010 8:35 AM To: Nowell, Jackie; Mckay, James; Berry, Ron; Vinzani, Gil; Rust, Karen; Corporon, Joe; Scardina, Maureen; Manuel, Vanessa; Templeton, Mike; Belnick, Tom; Chernikov, Sergei; Grzyb, Julie; Sledge, Bob; Guerra, Bob; Poupart, Jeff Cc: Mickey, Mike Subject: FW: EAA for NC0063720? This permit file was taken from the file room ; no one left an out card. If you have it: 1. Let me know 2. Check the file for the EAA— let Mike Mickey know if it is or isn't there. ,Thanks, CHW From: Mickey, Mike Sent: Friday, February 26, 2010 8:26 AM To: Weaver, Charles Subject: EAA for NC0063720? Charles — Condition A.(2) of the above permit reissued March 1, 2009 required the submittal of an Engineering Alternatives Analysis no later than 90 days after the effective date (or by June 1.2009). Any record of Aqua NC submitting this EAA for the Forest Ridge WWTP? Thanks, Mike. Mike Mickey Mike.MickeyONCDENR.eov NC Division of Water Quality 585 Waughtown Street Winston-Salem, NC 27107 Phone: (336) 771-4962 FAX: (336) 771-4630 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. 2