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HomeMy WebLinkAboutNC0088528_Permit (Issuance)_20070925NPDES DOCUHENT SCANNING: COVER :SHEET NC0088528 Hillcrest Subdivision, Well #3 NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Permit History Document Date: September 25, 2007 This documLerit is printed on reuse paper - ignore any content an the reYerse side of WATER ■ J r NCDENR =1 Gary Moseley, Manager Aqua North Carolina, Inc. 4163 Sinclair Street Denver, North Carolina 28037 Dear Mr. Moseley: Michael F. Easley Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality September 25, 2007 Subject: Issuance of NPDES Permit NC0088528 Merest Subdivision — Well #3 Surry County Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended). This final permit includes no major changes from the draft permit sent to you on June 20, 2007. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land. Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Sergei Chernikov at telephone number (919) 733-5083, extension 594. cc: NPDES Files Winston-Salem Regional Office / Surface Water Protection J. Thurman. Horne P.E. Horizon Engineering and Consutling, Inc. 2510 Walker Rd., Mt. Pleasant, N.C. 28124 N. C. Division of Water Quality / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 Internet: h2o.enr.state.nc.us Coleen H. Sullins Phone: (919) 733-5083 fax: (919) 733-0719 DENR Customer Service Center: 1 800 623-7748 Permit NC0088528 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Aqua North Carolina, Inc. is hereby authorized to discharge wastewater from a facility located at Hillcrest Subdivision — Well #2 Lynnewood Drive Mt. Airy Surry County to receiving waters designated as an unnamed tributary to Champ Creek in the Yadkin -Pee Dee River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof. This permit shall become effective November 1, 2007. This permit and authorization to discharge shall expire at midnight on February 28, 2009. Signed this day September 25, 2007. J Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Permit NC0088528 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Aqua North Carolina, Inc. is hereby authorized to: 1. Continue to operate a water treatment plant with discharge of filter backwash located at the Hillcrest Subdivision — Well #3, Lynnwood Drive, Mt. Airy, Surry County. 2. Discharge from said treatment works at the location specified on the attached map into unnamed tributary to Champ Creek, a class C water in the Yadkin -Pee Dee River Basin. Latitude: 36° 31' 49" Longitude: 80° 34' 16" USGS Quad #:_ BI6NE River Basin #: 03-07-03 Receiving Stream: UT to Champ Creek Stream Class: C Nt Aqua North Carolina, Inc. Hillcrest Subdivision — Well #3 Water Treatment Plant Surry County NC0088528 Permit NC0088528 A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS During the period beginning upon the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: Parameter Limits Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location Flows Monthly Instantaneous Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent Total Residual Chlorine2 17 µg/L 2/Month Grab Effluent Fluoride Monthly Grab Effluent Total Iron Monthly Grab Effluent _Total Zinc Monthly Grab Effluent Total Manganese Monthly Grab Effluent pH > 6.0 and < 9.0 standard units 2/Month Grab Effluent Footnotes: 1. For instantaneous flow monitoring, the duration of the discharge must be reported in addition to the total flow. 2. Limit takes effect May 1, 2009. Until then, the permittee shall monitor TRC [with no effluent limit]. This time period is allowed in order for the facility to budget and design/construct dechlorination and /or an alternative disinfection system. The Permittee shall collect all samples from a representative discharge event. The Permittee shall discharge no floating solids or foam visible in other than trace amounts. DENRJDWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NC0088528 Facility Information Applicant/Facility Name: Aqua North Carolina, Inc/ Hillcrest Subdivision — Well #3 Applicant Address: 4163 Sinclair Street, Denver NC, 28037 Facility Address: Lynnewood Drive, Mt. Airy, North Carolina Permitted Flow: N/A Type of Waste: Water TreatmentlGreensand filters Other Permit(s): N/A Facility / Permit Status: Class II/ New County: Surry County Miscellaneous Receiving Stream: UT to Champ Creek Regional Office: Winston-Salem Stream Classification: USGS Topo Quad: B 16NE 303(d) Listed? Subbasin: No 03-07-03 Permit Writer: Date: Sergei Chernikov May 15, 2007 Drainage Area (mi2): Summer 7Q10 (cfs) : Winter 7Q10 (cfs): N/A 0 N/A 30Q2 (cfs) : Average Flow (cfs): IWC (%): 0 N/A N/A Lat. 36° 31' 49" N Long. 80° 34' 16" W BACKGROUND: Hillcrest Subdivision — Well #3 is a Class II, greensand water treatment plant that provides potable water for 192 customers in the residential subdivision. There are currently 3 greensand filters, and a fourth will be added soon. The filters are backwashed approximately once every 3 days. The backwash rate for 4 filters will be 1,680 gallons. Well #3 is approved for 32 gpm, which is sufficient to serve the subdivision. The subdivision is fully developed and there is no potential for increased flow. Effluent limitations are implemented based on the new Guidance for Greensand Water Treatment Plants. The Division has determined that the existing Water Treatment Plant is necessary to accommodate social and economic growth in the area and that it will not result in contravention of surface water quality standards or loss of designated uses in the receiving stream. PROPOSED SCHEDULE FOR PERMIT ISSUANCE: Draft Permit to Public Notice: June 20, 2007 (est.) Permit Scheduled to Issue: August 30, 2007 (est.) NPDES CONTACT: If you have questions regarding any of the above information or on the attached permit, please contact Sergei Chernikov at (919) 733-5083 ext. 594. Fact Sheet NPDES NC0088285 Page 1 cc: Central Files WSRO NPDES STAFF REPORT AND RECOMMENDATION Application # NC0088528 To: Point Source Branch - SWP Attention: Sergei Chernikov, Ph.D. Date: June 29, 2007 County: Surry PART I - GENERAL INFORMATION 1. Permittee Address: Aqua NC, Inc. Hillcrest Subdivision — Well #3 4163 Sinclair Street Denver, NC 28037 2. Date of Investigation: June 26, 2007 3. Report Prepared by: Mike Mickey, Environmental Specialist 4. Persons Contacted and Telephone Number: No one present. 3UL 3 2007 5. Directions to Site: Hillcrest Subdivision is located north of the Flat Rock area off McBride Road. After turning onto Lynnewood Drive the well site is located on the left adjacent to the road and just past the first street to the right. 6. Discharge Points(s), List for all discharge points: Latitude: 36° 31' 49" Longitude: 80° 34' 16" U.S.G.S. Quad No. A-16-SE U.S.G.S. Quad Name: Mt. Airy North 7. Site size and expansion area consistent with application? Well # 3 is located on Parcel No. 5031-12-85-5691 and consists of 1.0 acre. 8. Topography: The well house sits right beside the road. 9. Location of nearest dwelling: Numerous houses are located within 100 yards of Well # 3. 10. Receiving stream or affected surface waters: U.T. to Champ Creek. a. Classification: C b. River Basin and Subbasin No.: 03-07-03 c. Describe receiving stream features and pertinent downstream uses: The exact location of the outfall pipe could not be located in the woods below the well house. Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of Wastewater to be permitted: The system is backwashed approximately once every three days with an estimated flow of 1,260 GPD (to increase to 1,680 upon addition of the fourth filter). b. What is the permitted capacity of the well system? The Colonial Woods water system serves 192 customers and is approved for 32 gpm (maximum yield) by the Public Water Supply Section. c. Actual treatment capacity of the current facility? See above. d. Date(s) of AtC's issued in the previous two years. NA. e. Please provide a description of existing or substantially constructed wastewater treatment facilities: There is no treatment. The discharge is generated when the green sand filters (3) are backwashed with potable water (plans are in the works to add a fourth filter). f. Please provide a description of proposed wastewater treatment facilities. N/A g. Possible toxic impacts to surface waters: The following chemicals are used: Potassium Permanganate (for iron and manganese removal), chlorine (for disinfection) and caustic soda (for pH adjustment). h. Pretreatment Program (POTWs only): NA 2. Residuals handling and utilization/disposal scheme: None generated. PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds (municipals only)? NA. 2. Special monitoring or limitations (including toxicity) requests: NA. 3. Important SOC, JOC or Compliance Schedule dates: NA. NPDES Permit Staff Report Version 10/92 Page 2 4. Alternative Analysis Evaluation: No other disposal options available for this type of operation. PART IV - EVALUATION AND RECOMMENDATIONS WSRO recommends issuance of the permit for the de minimis discharge created from backwashing of the green sand filters at Well # 3 serving the Hillcrest Subdivision. Report Preparer & Dat SWP Regional Supervisor & Date NPDES Permit Staff Report Version 10/92 -7 Page 3 • • •r• •• • 0 ••\ q� • •• Copyright (C) 1998, Maptech, Inc. • i/., Ftippil Hillcrest Subdivision Well #3 • /• 1 ?265-1' • • /(;; f(,/� Four (Three existing and one proposed) Potassium Permanganate Feed Tanks (One each to each green sand filter) To Hillcrest Subdivision Water System ==> Four Green Sand Filters (Three existing and one proposed) (In parallel) Chlorine & Caustic Addition Well Water => Backwash Discharge to unnamed tributary to UT to Champ Creek Hillcrest Subdivision - Well # 3 Existing Well System - Process Flow Diagram Mt. Airy, NC Scale: NTS Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 1 Surry Co., NC -- Printable Map http://arcims.webgis.net/nc/surry/printable.asp?process=id&x2=1538618.91693251 &v2=1... Parcel ID: 5031-12-85-5691 Owner: HEATER UTILTIES INC 4168 SINCLAIR ST PO BOX 859 DENVER,NC 280370859 Deed Book: 0736 Pg: 0684 Plat Book: 009 Pg: 0173 Surry Co., NC Parcels Subdivision: LYNNEWOOD-S1 Township: MOUNT AIRY Calculated Acreage: 1.00LT Building Value: $0 Outbuildings Value: $0 Land Value: $10,000 Deferred Value: $0 Assessed value: $10,000 Other Attributes at point 1538619, 1015656 1 of2 6/28/2007 5:33 PM NORTH CAROLINA FORSYTH COUNTY AFFIDAVIT OF PUBLICATION Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified, and authorized by law to administer oaths, personally appeared D.H. Stanfield, who being duly sworn, deposes and says: that he is Controller of the Winston-Salem Journal, engaged in the publishing of a newspaper known as Winston-Salem Journal, published, issued and entered as second class mail in the City of Winston-Salem, in said County and State: that he is authorized to make this affidavit and sworn statement: that the notice or other legal advertisement, a true copy of which is attached hereto, was published in Winston-Salem Journal on the following dates: June 23, 2007 and that the said newspaper in which such notice, paper document, or legal advertisement was published was, at the time of each and every such publication, a newspaper meeting all the requirements and qualifications of Section 1-597 of the General Statutes of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General Statutes of North Carolina. This 25th day of June, 2007 (signature of person ,making affidavit) Sworn to and subscribed before me, this 25th day of June, 2007 My Commission expires: September 28, 2010 KIMALEY JOHNSON NOTARY PUBLIC FORSYTH COUNTY STATE OF NORTH CAR MY COMMISSION EXPIRES PUBUC NOTICE ;, • STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION/NPDES UNR , • 1617 MAIL SERVICE. CENTER.: r RAUDGH. NC 27699.1617 • NOTIFICATION OF INTENT TO ISSUE! A NPDES-WASTEWATERPERMIT On the basis ot.'thorough `staff review and • application of NC General Statute 143.21. Public law 92-500 and other lawful standards and regulations, the North Carolina- Environmental Management Commission proposes, to issue a National Pollutant Discharge Elimination System (NPDES) wastewater discharge permit to the •person(s) fisted below effective _ 45 days from the publish . date of this. Written: corimients" regarding the proposed permit will be accepted until days after the publish date bf this notice. All comments received prior to that date are considered in the final determinations regarding the proposed permit The Director of the NC Division of Water Quality may decide to hold a public meeting for the proposed permit should the Division receive. a significant degree of. public interest • • Copies of the draft permit and other supporting . information on file used to determine conditions present in the draft permit are available upon request and payment of the costs of reproduction. Mall comments and/or requests for Information to the. NC Division of Water Quality at the' above address or call Ms. Frances Candelaria (919) 733-5083. extension 520 at the Point Source Branch. Please Include the NPDES permit number (attached) . In any • communication. Interested persons may also visit the Division of Water Quality at 512 N. Salisbury' Street. Raleigh. • NC 27604-1148 between the hours of 8:00 a.m. and 5:00 p.m. to review information on file. Aqua North Car+oBna,' Inc. (4163 Sinclair Street, Denver, NC 28037) has applied for a new NPDES permit NC0088528 for the Hilicrest Subdivision Well #3 in Surry County. This permitted facility will discharge treated filter backwash to UT to Champ Creek in the Yadkin -Pee Dee River Basin. Currently l suspended solids and total residual chlorine' tota are water quality limited. This discharge mayaffect future allocations in this portion of the Yadkin -Pee Dee River Basin. Aqua North Carolina, Inc. (4163 Sladalr Street.; Denver. NC 28037) has applied for a new NPDES' permit NC0088552 for the Coionlal Woods Subdivi- sion Well #2 in Surry County. This permitted facility will discharge treated filter backwash to UT to Bail Creek in the Yadkin -Pee Dee River Basin. Currently total suspended solids and total residual chlorine are water quality limited. This discharge may future allocations in this portion of the Yadkin -Pee • Dee River Basin. Aqua n North Carolina. Inc. (4163 NC 28037) has applied for S� NPDES Horizon Engineering & Consulting, Inc. Mr. Macon C. Sammons, Jr. County Manager Surry County 118 Hamby Road Dobson, NC 27017 Subject: Request for Local Government Review NPDES Permit Application Existing Well Backwash Discharge Hillcrest Subdivision Surry County Dear Mr. Sammons: 2510 Walker Road Mt, Pleasant, N.C. 28124-8567 704-788-4455 Fax: 704-788-4455 March 27, 2007 Attached is a copy of an application for permit signed by Aqua North Carolina, Inc. This application is for a permit for the continued discharge of backwash from filters installed on an existing potable well which serves the Hillcrest Subdivision, located outside Mt. Airy off McBride Road. I have also attached a map to indicate the existing location. As part of the application process, the state requires that we notify the local government and ask that they complete the attached form which indicates whether the local government has a zoning or subdivision ordinance and whether the continued discharge is consistent with that ordinance. This is an existing groundwater well that filters water through a series of filters before the water is distributed to the Hillcrest community. The filters are "backwashed" with water approximately once every three days and approximately 1,680 gallons of water is then discharged into the nearby stream. This has been in service for a number of years and we are not aware of any environmental concerns over this discharge, other than that the state has advised that we must apply for a permit. As the state has instructed, we are trying to file this application as soon as possible. If you could complete, sign and return this form, it will be very helpful. We apologize for the necessity to ask for this assistance but I hope that you can appreciate our dilemma. If you have any questions or if there is anything we need to discuss, please call me (704-788-4455.) Since se `�--., urnitHome, P. E. C: Gary Moseley NC DENR Attachment A. Local Government Review Form General Statute Overview: North Carolina General Statute 143-215.1 (c)(6) allows input from local governments in the issuance of NPDES Permits for non -municipal domestic wastewater treatment facilities. Specifically, the Environmental ement Commission (LMC) may not act on an application for a new non -municipal domestic wastewater discharge fiicilitManayuntil it has received a written statement from each city and county government having jurisdiction over any part of the lands on which the proposed facility and its appurtenances are to be located. The written statement shall document whether the city or county has a zoning or subdivision ordinance in effect and (if such an ordinance is in effect) whether the proposed facility is consistent with the ordinance. The EN-.IIC shall not approve a permit application for any facility which a city or county has determined to be inconsistent with zoning or subdivision ordinances unless the approval of such application is, determined to have statewide significance and is in the best interest of the State. Instructions to the Applicant: Prior to submitting an application for a NPDES Permit for a proposed facility, the applicant shall request that both the nearby city and county government complete this form. The applicant must: • • Submit a copy of the permit application (with a written request for this form to be completed) to the clerk of the city and the county by certified mail, return receipt requested. • If either (or both) local government(s) fail(s) to mail the completed for m, rm, as evidenced by the postmark on the certified mail card(s), within 15 days after receiving and signing for the certified mail, the applicant may submit the application to the NPDES Unit. ▪ As evidence to the Commission that the local government(s) failed to respond within 15 days, the applicant shall submit a copy of the certified mail card along with a notarized letter stating that the local governments) failed to respond within the 15-day period. Instructions to the Local Government The nearby city and/or county government which may have or has jurisdiction over any part of the Iand on which the proposed facility or its appurtenances are to be located is required to complete and return this form to the applicant within 15 days of receipt. The form must be signed and notarized. Name of local government (City/County) Does the city/county have jurisdiction over any part of the land on which the proposed facility and its appurtenances are to be located? Yes [,41 No [ ] If no, please sign this form, have it notarized, and return it to the applicant. Does the city/county have in effect a zoning or subdivision ordinance? Yes [wr No [ ] If there is a zoning or subdivision ordinance in effect, is the plan for the proposed facility consistent with the ordinance? Yes [ ] •No [f Date 3/1/101667 State of On this name Afttriii 1441- Signature (City Manager/ ounty Manager) day of , County of , personally appeared before me, the said to me known and known to me to be the person `described in and who executed the forego document and he (or she) acknowledged that he (or she) executed the same and being duly sworn by me, made oath that the statements in the foregoing document are true. My Commission expires 3 15.0?0!! .(Signature of Notary Public) OFFICIAL SEAL DEANNA D. HENDERSON Notary Public -North Carolina SURRY COUNTY My Co Is i nE ire js Notary Pub l jE (Official Seal) Horizon Engineering & Consulting, Inc. Ms. Susan Wilson Supervisor, Western NPDES Program Division of Water Quality NPDES Unit 1617 Mail Service Center Raleigh, N.C. 27699 - 1617 Subject: NPDES Permit Application Existing Well Backwash Discharge Well No. 3 Aqua, North Carolina, Inc. Hillcrest Subdivision Surry County Dear Ms. Wilson: 2510 Walker Road Mt. Pleasant, N.C. 28124-8567 704-788-4455 Fax: 704-788-4455 March 27, 2007 APR p 200/ CILIALITY EIRANCH Attached are four (4) copies of the applications for NPDES permit signed by Aqua North Carolina, Inc., four (4) copies of the Engineering Alternatives Analysis (EAA) and a check for $ 715 (application fee.) This application is for a permit for the continued discharge of backwash from three (3) existing and one proposed, green sand filters installed on a potable well which serves the Hillcrest Subdivision, located outside Mount Airy, N.C. The EAA contains maps which indicate the existing location. This is an existing groundwater well that filters water through a series of green sand filters before the water is distributed to the Hillcrest community. The filters are "backwashed" with water approximately once every three (3) days and approximately 1,680 gallons of water (1,260 gpd from existing three wells, 1,680 gpd after the fourth filter is added) is then discharged into the nearby stream. This well has been in service for a number of years and we are not aware of any environmental concerns over this discharge. We appreciate your consideration of our application for permit. If you have any questions or if there is anything we need to discuss, please call me (704-788-4455.) Sinc C: an Horne, P. E. Tamara S. Taylor Robert Midgette Gary Moseley Mike Melton NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants Mail the complete application to: + �:_ ij «/ L} N. C. Department of Environment and Natural Resources-- --- Division of Water Quality / NPDES Unit i 1617 Mail Service Center, Raleigh, NC 27699-1617 APR r 2007 NPDES Permit Number NC00 g$ 5.2 $ r . _ QUALITY BRANCH If you are completing this form in computer use the TAB key or the up - down arrows to move from one field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type. 1. Contact Information: Owner Name Aqua North Carolina, Inc. Facility Name Hillcrest Subdivision - Well # 3 Mailing Address 4163 Sinclair Street City Denver State / Zip Code NC/28037 Telephone Number (704)489-9404 Fax Number (704)489-9409 e-mail Address GRMoseley@aquaamerica.com 2. Location of facility producing discharge: Check here if same as above ❑ Street Address or State Road City State / Zip Code County Lynnewood Drive Mt. Airy NC/27030 Surry 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORC) Name Mailing Address City State / Zip Code Telephone Number Fax Number 4. Ownership Status: Aqua North Carolina, Inc. 4163 Sinclair Street Denver NC/28037 (704)489-9404 (704)489-9409 Federal ❑ State ❑ Private ® Public ❑ Page 1 of 3 C-WTP 03/05 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants 5. Type of treatment plant: ❑ Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by filtration and disinfection) ❑ Ion Exchange (Sodium Cycle Cationic ion exchange) ® Green Sand Filter (No sodium recharge) ❑ Membrane Technology (RO, nanofiltration) Check here if the treatment process also uses a water softener 0 6. Description of source water(s) (Le. groundwater, surface water) Groundwater well 7. Describe the treatment process(es) for the raw water: Green sand filtration using potassium permanganate. Chlorine added for disinfection. Caustic soda added for pH adjustment. 8. Describe the wastewater and the treatment process(es) for wastewater generated by the facility: Wastewater discharge is the backwash of the green sand filters. Discharge rate is approximately 1,680 gallons, once every three days. 9. Number of separate discharge points: 1 Outfall Identification number(s) 001 10. Frequency of discharge: Continuous ❑ Intermittent PD If intermittent: Days per week discharge occurs: 3 Duration: approx. 20 min. 11. Plant design potable flowrate 0.046 (Max. well yield) MGD Backwash or reject flow 0.00168 MGD 12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitude an unnamed tributary to Champ Creek (Yadkin River Basin) Page 2 of 3 C-WTP 03/05 NPDES PERMIT APPLICATION - SHORT FORM C - WTP For discharges associated with water treatment plants 13. Please list all water treatment additives, including cleaning chemicals, that have the potential to be discharged. potassium permanganate chlorine caustic soda 14. Is this facility located on Indian country? (check one) Yes ❑ No 15. Additional Information: > Provide a schematic of flow through the facility, include flow volumes at all points in the treatment process, and point of addition of chemicals. • Solids Handling Plan 16. NEW Applicants Information needed in addition to items 1-15: • New applicants must contact the NCDENR Customer Service Center. Was the Customer Service Center contacted? ® Yes ❑ No • Analyses of source water collected • Engineering Alternative Analysis • Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a water quality model. 17. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. Gary Moseley Manager, Western N. C. Printefl name of Person Signing Title S� Vl�4i'J'rrr SignafiN of Applicant Date North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 3 of 3 C-WTP 03/05 IER Existing Wastewater Discharge Engineering Alternatives Analysis Aqua North Carolina, Inc. Hillcrest Subdivision Well No. 3 Mt. Airy, N.C. Surry County Applicant : Aqua North Carolina, Inc. 4163 Sinclair Street Denver, N.C. 28037 Ph: 704-489-9404 Contact: Gary Moseley Facility Prepared by: m" Pi scA-Pit-jfe- Hillcrest Subdivision Well # 3 Aqua North Carolina, Inc. Lynnewood Drive Mt. Airy, N.C. 27030 Ph: 704-489-9404 Contact: Gary Moseley J. Thurman Horne, P.E. Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 Ph: 704-788-4455 Date: March 27, 2007 URM Pr 3 MEI FM riEl Mel Section 1: General 1.01 Introduction: Aqua North Carolina, Inc. (Aqua NC) currently owns and operates an existing well water system serving Hillcrest Subdivision (Hillcrest), located northeast of Mt. Airy, N.C. in Surry County. Well #3 of the water system uses an assembly of green sand filters in the treatment of groundwater prior to distribution to the Hillcrest community. There are currently three (3) existing filters and a fourth will be added to improve the consistency of the quality of the water being provided to the community. These filters are backwashed, using potable water, approximately once every three days. This backwash is a relatively small volume, currently approximately 1,260 gallons but will increase to approximately 1,680 gallons with the addition of the fourth filter. The discharge leaves the well house via a 2" PVC pipe and is released into an intermittent stream that is an unnamed tributary to Champ Creek in the Yadkin River basin. The well has a good overall history of compliance with water supply regulations, but is required to obtain an NPDES permit for the continued operation of the existing backwash discharge. The Hillcrest water system currently has 192 customers. Well # 3 is approved for 32 gpm. No expansion of the capacity of this well is planned and the system is sufficient to serve the subdivision. Whereas the subdivision is fully developed and since no expansion of the subdivision or service area is planned, there is no potential for any substantial population increase to affect the existing rate of water use or backwash discharge flow (1680 gpd/3 days.) The review of this source and the consideration of alternatives is being made with inclusion of consideration of the guidance contained in "Permitting Strategy For Greensand Filtration Water Treatment Plants - January 2004") 1.02 Scope: The scope of this project is limited to the investigation and evaluation of alternatives for treating and/or disposing of the existing green sand filter backwash 1.1 from Well # 3 at Hillcrest Subdivision. This includes consideration of the feasibility of continuing the existing discharge and options for eliminating the existing discharge. IIIP Section 2: Mg MI Background Information 2.01 Project Area: The existing service area is limited to the Hillcrest Subdivision. All homes are single family residences. There are no commercial or industrial customers. All wastewater is typical backwash from green sand filters. 4 MIR IMP PEI The existing discharge coordinates are: Longitude: -80 deg. 34 min. 16 sec. W Latitude: 36 deg. 31 min. 49 sec. N 2.02 Site Characteristics: The subdivision is located in a rural portion of Surry county, outside any municipal limits and remote from public water and/or sewer. The nearest existing sewer is approximately 1.4 miles away. The general area has soil characteristics which are limited to the possibility of on site treatment and disposal. Terrain is generally rolling but has been graded level at the existing well site. 2.03 Receiving Stream Characteristics: The receiving stream is intermittent in nature and is an unnamed tributary to Champ Creek, which is C waters. The receiving stream is obviously a zero flow stream (7Q10 and 30Q2 = 0) but since the wastewater discharge is not oxygen consuming, discharge into the zero flow stream should be allowable under state procedures. 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 threatened or impaired waters. Section 3: Existing Utilities 3.01 Public Facilities: The nearest existing public sewer is located approximately 1.4 miles south of the existing well near the junction of McBride Road and Champ Creek. There are plans to eventually extend the sewer out McBride Road to a point that would be closer to the existing well. The distance that would be required for sewer force mains to be installed to connect to this proposed extension would be approximately 1.0 miles (5,300 ft.) This would be the route that appears to be the most practical from an engineering perspective to take advantage of following existing highway right of way and have minimal impact to adjacent property owners. Mr. Jack Gardin, Surry County Water And Sewer Projects Coordinator, was consulted and has advised that, although the proposed extension has no established time table, it could be constructed within the next five years, or it could be beyond five years. For the purpose of making a best case evaluation of this alternative, the estimates will be based on connection to this sewer after the extension is complete. 5 IMO 3.02 Private Facilities: There are no known existing private sewer utilities within any reasonable proximity of Hillcrest Subdivision that would be available for consideration as a possible alternative. A review of available records did not reveal that there are any private sewer facilities within a two and one quarter mile radius. �— Section 4: Alternatives For Service 4.01: On site surface and/or subsurface disposal: PIM PIO PIM Subsurface Disposal: 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 Woolwine Fairview -Westfield soils with characteristics that are somewhat limited to very limiting with respect to the potential for subsurface disposal. In addition to researching the information available from NRCS soils maps, the engineer consulted with Mr. Johnny E. Easter, RS, Surry County Environmental Health Director concerning the possibilities of subsurface disposal. Mr. Easter suggested that, for purposes of evaluating this based on the limited information available, an application rate of 0.25 gpd/SF would be a reasonable assumption. Of course, before a final design and/or approval could be given, an actual on site soils evaluation would be required. For the purposes of evaluating this as a possible option, a design application rate of 0.25 gpd/SF will be used. 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. Aqua North Carolina only owns a one acre lot around the well. Whereas the well must have a 100 foot buffer to any disposal site, this would necessitate that Aqua North Carolina acquire additional property to allow for the possible subsurface disposal site, repair/reserve area and buffers. 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 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 existing 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. 6 Surface Irrigation: Disposal by 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 backwash waters during periods of inclement weather. As noted earlier, the soil surveys for this area have determined this to have limited to severely limited potential for on site subsurface disposal. Consideration of this alternative is based on an assumed allowable application rate of 0.20 inches per week which is based on a typical range of 0.15 to 0.25 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. Considering the relatively benign nature of the current discharge it is not expected that any additional treatment would be required for surface application. 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 continued discharge, 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. The volume of this discharge is very low and would have little attraction as a source for recycle purposes. This area does not have a golf course, nor are there any other viable options for reuse associated with the subdivision or in the surrounding area. 4.03: Surface Water Discharge This is the current method of wastewater disposal. There is no anticipated need to add any new facilities for additional treatment. 7 ant An estimate of the costs for the continuation of this alternative is included in ■- Appendix A for comparison. Nil MP PER 4.04: Combination of Alternatives Alternatives to discharge that may be technologically feasible, such as connection to the nearest public sewer, subsurface disposal and/or surface irrigation, could not be employed in conjunction with the current method of disposal (surface water discharge) and yield any reduction in total capital or operating expenditures. The evaluation of 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 periodic discharge, yields no reduction in the cost for non -discharge alternatives and merely increases the overall costs. There would be no reduction in capital costs for any of these alternatives 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 only viable option due to the overwhelming differential in capital and operating costs, any addition of an additional alternative would merely make the cost differential worse. Section 5: Summary and Conclusions: 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 discharge. Compared to the cost of the next most cost effective and reliable alternative Mil (subsurface disposal) the estimated Net Present Value is approximately 938 % greater. This represents a difference of $ 608 NPV per customer. In Tight of the financial impracticality, it is not necessary to further pursue whether connection is politically acceptable to the POTW or whether land based disposal .0 options are workable. By far, the most practical and cost effective and reasonably practical alternative is the continued discharge of the relatively benign filter backwash waters. FM MIR 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. 9 13.111 .. PM PM Plul 1. Surface Water Discharge at 1,680 GPD Flow Rate: Whereas this is the existing method of disposal and considering that no additional treatment is expected as a consequence of any forthcoming permit, there are no estimated additional capital costs. The only anticipated increase in operation and maintenance costs are those associated with the collection, analysis and reporting of effluent discharge samples as required by an NPDES permit. Capital Cost: Operation & Maintenance Cost Total Capital Cost = $ 0.00 0. (Present Value, 20 year life, 5.875% interest): RIII PM AM Annual Cost Operation & Maintenance ($ 100/mo. X 12 mo/yr) Total Annual Cost = $ 1,200 PV Annual Cost = $ 13,905 Total Net Present Value $ 13,905 $ 1,200 10 Mil MP FUR 2. Connection to POTW Sewer System at End of Future Proposed Extension on McBride Road : Install new lift station to collect discharge and convey by force main along existing high way right of way to junction with existing municipal sewer. Distance = approx. 5,300 LF Begin elev. = approx. 1190.0 Highest elev. = approx. 1270.0 Lift station Avg. flow = 1,680 gpd = 1.2 gpm Peak flow = 2.5 x 1.2 gpm = 3.0 gpm Pump Design Use 1" Sch. 40 PVC, approx. 5,300LF FH @ 3.0 gpm = 0.68 ft/100 ft = 36.0 ft. SH = 80 ft (approx.) Use TDH = 120 ft. cm Use dual effluent pumps (rated at 120 ft. TDH at 3 gpm) OSI P501512 or approved equal f'' Capital Cost: Item: Quantity: Unit Cost: Cost: rim 1" force main sewer 5,300 LF $ 8 $ 42,400 Air release 3 Ea. $ 2,500 $ 7,500 Pump Station 1 Ea $ 35,000 $ 35,000 Manholes 1 Ea $ 1,800 $ 1,800 ,.., Tap Fee 1 Ea. $ 3,000 $ 3,000 Wastewater Capacity Use Fee 1 Ea. $ 2,500 $ 2,500 Road Crossings 1 Ea $ 5,000 $ 5,000 Mil Creek Crossings 1 Ea $ 5,000 $ 5,000 Metering Station 1 Ea. $ 30,000 $ 30,000 Tie to exist. MH 1 Ea $ 1,000 $ 1,000 WI Erosion control LS $ 10,000 $ 10,000 Surveying 2 days $ 1,500 $ 3,000 Easement/Right of Way 200 LF $ 10 $ 2,000 Mg Clearing (approx. 0.3 acre) 0.3 acre $ 6,500 $ 1,950 Electrical LS $ 5,000 $ 5,000 Legal LS $ 5,000 $ 5,000 Sub -total $ 160,150 NW Engineering 15 % 24,023 11 CIIPI Operation & Maintenance Cost: Local government sewer fee Annual sewer charges GER Total Capital Cost = $ 184,173 = $ 3.44/1000 Gallons $ 3.44/1000 Gal x 1,680 gpd x 122 day/yr = $ 705 p^ Annual electrical charges = $ 100/month X 12 mo/yr = $ 1,200 Annual sample analysis charges = $ 100/mo. X 12 mo/yr = $ 1,200 POT Annual repair and maintenance = $ 100/mo. X 12 mo/yr = $ 1,200 Total annual costs = $ 4,305 (Present Value, 20 year life, 5.875% interest) Present Value Annual Cost $ 49,883 Total Net Present Value = $ 234,066 12 fOR FOR 3. Land Based Disposal: 3A. Subsurface Disposal: Based on the soil survey information and the engineers field observations, the soils in this area appear to be limited to 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 0.25 gpd/sq. ft. is acceptable. Therefore, based on the design flow, the area required for subsurface disposal is: 1,680 gpd / 0.25 gpd/sq. ft. = 6,720 SF Whereas it is required to maintain an equal size area as a reserve for future repair, the required area is 13,440 SF. Appendix D contains a map, which delineates the area that might be available for subsurface disposal. Assuming a roughly rectangular field (135 ft x 100 ft. for the initial drain field plus repair and In order to maintain the required buffer to property lines), the minimum estimated land required is 18,600 SF or .43 acres. Capital Cost: Item: Quantity: Unit Cost: Cost: 4" sewer drain in 3' trenches 2,240 LF $ 12 $ 26,880 Site Clearing .2 acre $ 6,500 $ 1,300 fmil Land .43 acres $ 15,000 $ 6,450 1" FM 200 LF $ 8 $ 1,600 ., Pump Station 1 Ea $ 20,000 $ 20,000 Surveying 2 days $ 1,500 $ 3,000 Soils Investigation 1 day $ 1,500 $ 1,500 .7 Phase I Environmental Site Assessment LS $ 2,000 $ 2,000 Erosion control LS $ 5,000 $ 5,000 Electrical LS $ 3,000 $ 3,000 I. Legal LS $ 2,500 $ 2,500 Sub -total $ 73,230 Engineering 15 % 10,985 Total Capital Cost = $84,215 13 WI MI Operation & Maintenance Cost (Present Value, 20 year life, 5.875 % interest): WM MR Annual Cost O & M of drain field, Pump station and force main = $ 2,500/yr Annual electrical charges = $ 125/month X 12 mo/yr $ 2,500 = $ 1,500 1-+ Total Annual Cost = $ 4,000 PV Annual Cost = $ 46,349 Total Net Present Value = $ 130,564 14 MI PIM FM IM 3B. Surface Irrigation: Surface irrigation preliminary design is based on an assumed allowable application rate of 0.20 gpd/sq. ft. and a required storage basin for 60 days design flow. Based on the design flow of 1,680 gpd, this results in an estimated disposal area of 8,400 SF. Allowing a recommended 50% repair area, the required total area is 12,600 SF. Assuming a roughly rectangular field (415 ft x 415 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 172,225 SF or approximately 4 acres. CM Capital Cost: Item: EM Quantity: Unit Cost: Cost: 100,800 gal. storage basin (1) $ 19,500 Surface irrigation system 8,400 SF $ 0.35 $ 2,940 fPal Monitoring wells 4 ea $ 4,000 $ 16,000 Land 4 acres $ 15,000 $ 60,000 Fencing 2,000 LF $ 6.00 $ 12,000 pm 2" FM 1600 LF $ 8.50 $ 13,600 Manholes 1 Ea $ 1,600 $ 1,600 Pump Station 1 Ea $ 35,000 $ 35,000 M' Surveying 3 days $ 1,500 $ 4,500 Soils Investigation 3 days $ 1,500 $ 4,500 Phase I Environmental Site Assessment LS $ 3,000 $ 3,000 ''' Erosion control LS $ 8,000 $ 8,000 Electrical LS $ 5,000 $ 5,000 MI Legal LS $ 5,000 $ 5,000 MI Engineering 15 % Total Capital Cost mu, (1) Storage: Excavation 625 cu. Yds. @ $ 6.00/yd = $ 3,725 Compaction and Lining 4,500 SF @ $ 3.50/SF = $ 15,750 F., Sub -total = $ 19,500 Sub -total $ 190,640 28,596 $ 219,236 15 PR Operation & Maintenance Cost (Present Value, 20 year life, 8% interest): Annual Cost O & M of spray field, Pump station and force main = $ 3,500/yr $ 3,500 Annual electrical charges = $ 250/month X 12 mo/yr = $ 3,000 run Annual sample analysis charges = $ 100/mo. X 12 mo/yr = $ 1,200 Total Annual Cost = $ 7,700 Mit Foil roil PV Annual Cost = $ 89,222 rim Total Net Present Value = $ 308,458 North + Hillcrest Subdivision - Well # 3 USGS Map - Existing Well Location Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 Mt. Airy, N.C. Scale: 1" = 1,600 Exist. property Tine, North l lillcrest Subdivision - Well tt 3 Aerial Photo - Existing Well Location Mt. Airy, N.C. Scale: 1" -= 330' Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 PIM PEI Hillcrest Subdivision - Well # 3 Possible Location Route for Connection to Public Sewer Mt. Airy, N.C. Scale: 1" = 1,600' Nearest Location of Exist. Sewer Horizon, pgineerina & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 • - ' r'•• • , • •••••, : , •".; • •/.1 • •'•11-'''' • • • • •.••?... • / f " \ Prop. Subsurface Disposal .„ (Property must be acquired) • ,, r)/-• • ,1 • • • • • t 1C0f1 •••• . •2,2.C., 17- -;•itr; •••"FItt.., r •• \ North Flillcrest Subdivision - Well it 3 Possible Location for Subsurface Disposal Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 Mt. Airy, N.C. Scale: 1" = 110' North 1-1illcrest Subdivision - Well # 3 Possible Location for Surface Disposal Mt. Airy, N.C. Scale: 1" = 330' Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 North Hillcrest Subdivision - Well # 3 NRCS Soils Map Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 Mt. Airy, N.C. Scale: 1" = 875' a•4 IMP aan n�a Sewage Disposal Surry County, North Carolina [The information in this table indicates the dominant soil condition but does not eliminate the need for onsite investigation. 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] Map symbol and soil name Pct. of map unit Septic tank absorption fields Sewage lagoons Rating class and limiting features Value Rating class and limiting features Value BbB: Braddock 99 Somewhat limited Somewhat limited Slow water 0.50 Seepage 0.98 movement Slope 0.32 BbC: Braddock 97 Somewhat limited Slow water movement Slope Very limited 0.50 Slope Seepage 0.16 CsA: Colvard 49 Very limited Very limited Flooding 1.00 Flooding Seepage, bottom 1.00 Seepage layer Suches DeF: wq Devotion, very rocky REP MIR Rhodhiss, very rocky 39 Very limited Flooding Depth to saturated zone Seepage, bottom layer Slow water movement Very limited 1.00 Flooding 1.00 Depth to saturated zone 1.00 Seepage 0.50 1.00 0.98 1.00 1.00 1.00 1.00 1.00 32 Very limited Very limited Slope 1.00 Depth to soft bedrock 1.00 Depth to bedrock 1.00 Slope 1.00 Seepage, bottom 1.00 Seepage 1.00 layer Depth to hard 0.84 bedrock 26 Very limited Slope Seepage, bottom layer Slow water movement Very limited 1.00 Slope 1.00 Seepage 0.50 1.00 1.00 USDANatural Resources This report shows only the major soils in each map unit. Others may exist. Tabular Data Version: 9 Conservation Service Tabular Data Version Date: 03/08/2007 Page 1 of 4 Sewage Disposal Surry County, North Carolina Map symbol and soil name Pct. of map unit Septic tank absorption fields Sewage lagoons Rating dass and limiting features Value Rating class and limiting features Value DeF: Bannertown, very rocky FsE: Fairview Stott Knob 21 Very limited Slope Depth to bedrock Seepage, bottom layer 60 Very limited Slope Slow water movement 28 Very limited Slope Depth to bedrock Seepage. bottom layer Slow water movement FuB2: Fairview, moderately eroded 57 Somewhat limited Slow water movement Urban land Ud: Udorthents, foamy 31 Not rated 85 Very limited Seepage, bottom layer WfB2: Woolwine, moderately eroded 48 Very limited Depth to bedrock Slow water movement Fairview, moderately eroded 34 Somewhat limited Slow water movement Westfield, moderately eroded 17 Somewhat limited Depth to bedrock Slow water movement Very limited 1.00 Depth to hard 1.00 bedrock 1.00 Depth to soft bedrock Slope Seepage Very limited 1.00 Slope 0.50 Seepage Very limited 1.00 Depth to soft bedrock 1.00 Slope 1.00 Seepage Depth to hard 0.50 bedrock Somewhat limited 0.50 Seepage Slope Not rated Very limited 1.00 Seepage Slope Very limited 1.00 Depth to soft bedrock 0.50 Slope Seepage Somewhat limited 0.50 Seepage Slope 1.00 1.00 1.00 1.00 1.00 0.98 1.00 1.00 1.00 0.71 0.98 0.32 1.00 0.68 1.00 0.68 0.50 0.98 0.68 Somewhat limited 0.86 Seepage 0.98 0.50 Slope .0.68 Depth to soft bedrock 0.61 USDANatural Resources This report shows only the major soils in each map unit Others may exist. --� Tabular Data Version: 9 Conservation Service Tabular Data Version Date: 03/08/2007 Page 2 of 4 MIR a.v 11E1 rint 1114 Sewage Disposal Surry County, North Carolina Map symbol and soil name Pct. of map unit Septic tank absorption fields Sewage lagoons Rating class and limiting features Value Rating class and limiting features Value WfC2: Woolwine, moderately eroded 50 Very limited Depth to bedrock Slope Slow water movement Fairview, moderately eroded 32 Somewhat limited Slope Slow water movement Westfield, moderately eroded 13 Somewhat limited Depth to bedrock Slope Slow water movement WoD: Woolwine, stony Fairview, stony Westfield, stony WoE: Woolwine, stony Fairview, stony 53 Very limited Slope Depth to bedrock Slow water movement 26 Very limited Slope Slow water movement 13 Very limited Slope Depth to bedrock Slow water movement 47 Very limited Slope Depth to bedrock Slow water movement 24 Very limited Slope Slow water movement Very limited 1.00 Depth to soft bedrock 0.63 Slope 0.50 Seepage Very limited 0.63 Slope 0.50 Seepage Very limited 0.86 Slope 0.63 Seepage 0.50 Depth to soft bedrock Very limited 1.00 Depth to soft bedrock 1.00 Slope 0.50 Seepage Very limited 1.00 Slope 0.50 Seepage Very limited 1.00 Slope 0.86 Seepage 0.50 Depth to soft bedrock Very limited 1.00 Depth to soft bedrock 1.00 Slope 0.50 Seepage Very limited 1.00 Slope 0.50 Seepage 1.00 1.00 0.50 1.00 0.98 1.00 0.98 0.61 1.00 1.00 0.50 1.00 0.98 1.00 0.98 0.61 1.00 1.00 0.50 1.00 0.98 USDANatural Resources This report shows only the major soils in each map unit. Others may exist. Tabular Data Version: 9 Conservation Service Tabular Data Version Date: 03/08/2007 Page 3 of 4 Sewage Disposal Surry County, North Carolina Map symbol and soil name Pct. of map unit Septic tank absorption fields Sewage lagoons Rating class and limiting features Value Rating class and limiting features Value WoE: Westfield, stony 10 Very limited Slope Depth to bedrock Slow water movement Very limited 1.00 Slope 0.86 Seepage 0.50 Depth to soft bedrock 1.00 0.98 0.61 USDANatural Resources This report shows only the major soils in each map unit. Others may exist. Tabular Data Version: 9 "--aW1 Conservation Service Tabular Data Version Date: 03/08/2007 Page 4 of 4 +=I DA I'E SAMPLE COLLECTED 7,f j E %BAN 16 vac 2 \rib_ — <IC L.C. Mai zji l 1 '��� 1 �yy-\,i�"° j 1 1 1 19(114t-)C6-,1 MI j/84 • DATE SAMPLE RRCCEJVED_.____ 11/20/84 _-__..._.- DATE SAMPLE. ANALYZED 11120-1.216/84 1�2/7/S4 �,._..............�,.., DATE; OF REPORT - 00427 �... - iNP+i.irSt:i PERFORMED BY Surings,tie�lster/Lynch/I/ad JOB NUMBER _____,__ ---•-� ____ `� Al \,(-L \., t. kTr--e- rl ci(5 >,, AJ` ' f)�/ r / '{i ��,�SPi.E • RESEARCII & AN1yTicAL LPSbORATORIESLAbORATORiESe INC. P.O. eon 473 106 Sho+t Sired Korn ersville. North tornl'no 27284 T.I.phnne 919.996-284I Surry Water C mpatly_ P.O. Box 1307 ;fount Airy, N 2703CI ^ __ Attention: PARAMETER Chloride Color STOt4ET NUMBER 00940 L eY ("I s m 4? 1 3313 3314 t 50 0.50 00030 .0@.115.0tL3 pH Fluoride 00951 mg/ 1. 1 - 0.11 (0.10 Hardness, Tat:. 00900 11:g/' -.. , 37 .. ..__ ►�_.------ Nitrate Nitrogen 00620 ,:1!1 0. 0 2U I 0,25 Dissolved So:.ids 70300 :mgT1 r 122 ` Surfactants 38260 :�2 / 1 { 0.11. ji 0 „�6 -I Sulfate 00945 K- 3- 9.0 ..._.�. 2.0 Arsenic, Tot. 01002 /-1„_.„„. _< 11 Barium. Tot. 01007 ,01._ Cadmium, Tot. 01027 1.:g/l. { < 2.0 ChroWium, Tot. 01034 TZ ___�._ . �55 : 3 � Coppery 01042 Iron, Tot. 01045 Lead, Tot. 0105]. Manganese, Tot. 01005 Mercurv, , Tot . Selenium, Tc t . 1,800 - �.g/1 96 71900 1.10 / 1 01147 (CONTWJED ON N CL1ENra NJi <11 <68 • 0.30 `0030 < 3.0 <3.0 Nxr PAGE.) L VNE UOOD 1-V1N OAKS SUBDTVIS r0 r+A1,CC0+.tin1 vw.1 7c•CI JA. 7/17/Pfl d'rr;'1 f it •11'i r NMI PE5EARCh & Al iAIN' T Cid LABORATORIES, INC. P.O. ec z 473 106 jhort Slroot K.rn.rsvillo. North Corolino 2713A Tvlvph'n. 919.996.2841 um, Sum, Water Camj;any imp ,,r"10.CE1 V, ('JAN 10 1965 m fiS \ / a*w DATE SAMPLE.MPLE COLLECTED _....1.'./19/S4_ O , • . Box 1307 DATE SAMPLE R :CE1VED Mount Airy, NC 27030 DATE SAMPLE ANALYZED DATE OF REPORT _.. 11/20/S4 VINT...$4 11 /20-12/6/S4 2i 7I84 Y i1 • 00427 ANALYSES P JOB NUMBERAFCflIED oy 4ebs ter/Springs aynch/veden (CONT'D. FROR NEVIOUS PACE) PARAMETER t" Silver, Tot. Sc+dium, Tot. '' Zinc, Toc. STORET NUMBER 01077 UNITS uE/1 2.2 a a. ,1 00929 r;F/ 1 L.: . 7 '... 6 r -7 -_ ____r_________ CiLIENrS c. a 1•f1• •111A*LVVI vra t L NNE W10OIU TWIN OAKS I !1l17 / 1 7 IC( • Four (Three existing and one proposed) Potassium Permanganate Feed Tanks (One each to each green sand filter) To Hillcrest Subdivision Water System ==> Four Green Sand Filters (Three existing and one proposed) (In parallel) fi Chlorine & Caustic Addition fi Well Water => Backwash Discharge to unnamed tributary to UT to Champ Creek Hillcrest Subdivision - Well # 3 Existing Well System - Process Flow Diagram Mt. Airy, NC Scale: NTS Horizon Engineering & Consulting, Inc. 2510 Walker Road Mt. Pleasant, N.C. 28124 March 27, 2007 1 24 fuNI Residuals Management Plan Prepared by: J. Thurman Horne, P.E. Horizon Engineering & Consulting, Inc. Residuals Management Plan: 11.1 The proposed continued surface water discharge will have no impact on existing residuals management. There are no wastewater treatment facilities. .-► The nature of the operation (backwashing of green sand filters) is such that only minor amounts of solids (less than 30 mg/1) are released with the discharge. There is no generation of any grits, sludges or residuals for removal or disposal. This project does not increase or alter the amounts of sludge produced or impact the current methods of disposition. Hillcrest Subdivision Well # 3 Raw Water Analysis Results (results assembled 09/11/2007) Hillcrest Subdivision Well # 3 Raw Water Analytical Test Results Field Test Results — Analysis performed by Aqua North Carolina, Inc. Note: Results on this form are transposed from attached Chain of Custody Form TRC = 0.0 mg/I PH = 6.6 s.u. Temperature = 16 deg. C. Aug•24. 2007 10:20AM RESEARCh & ANALyTICAI. L.AbORATORIES, INC. Analytical/Process Consultations Aqua NC P.O. Box 4889 Cary, NC 27519 Attn: Rene Miller Date Sample Collected Date Sample Received Date Sample Analyzed Date of Report Analyses Performed by Lab Sample Number 596401 No.0529 P. 5 CO0,011111.180 `a +o j� C: ;.;# NC3T101 7. r ;h. p. ,r' ti 2; • 08/15/07 08/15/07 08/15/07 08/17/07 SW ==O..o..s.ecoca===C=C=.======ma=m=m=s.===_=C= Parameter Storet # Results SALINITY Clients Sample Source Number Time Collected (Hrs) 0.1 ppt HILLCREST P.O. Box 473 • 10S Short Street • Kernersville, North Carolina 27284. 336-996-2841 • Fax 338-996-0326 www. researchandanalytical.00m Environmental Conservation Laboratories, Inc. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 www.encolabs.com Monday, September 10, 2007 Aqua NC - Denver (AQ004) Attn: Debbie Gentry 4163 Sinclair Street Denver, NC 28037 RE: Laboratory Results for Project Number: [none], Project Name/Desc: NPDES Hillcrest ENCO Workorder: C711950 Dear Debbie Gentry, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Monday, August 20, 2007. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, g/i/ Link Thrower Operations Mgr Enclosure(s) The total number of pages in this report, including this page is 17. AP.x.tAignSsIlkellaw-,..A.. Aki,(011-411-Str; , Parameter EPA 160.1 EPA 160.2 EPA 160.5 EPA 180.1 EPA 200.7 EPA 245.1 EPA 300.0 EPA 310.2 EPA 335.2 EPA 350.3 EPA 351.2 EPA 353.2 EPA 365.4 EPA 420.1 SM 234013 SAMPLE SUMMARY/LABORATORY CHRONICLE Weift6tgeRiarjtAb's „ Hold Date/Time(s) Prep Date/Time(s) 08/27/07 08/27/07 08/22/07 10:50 08/22/07 10:50 02/16/08 09/17/07 09/17/07 09/03/07 09/03/07 09/17/07 09/17/07 09/17/07 09/17/07 09/17/07 02/16/08 08/23/07 08:58 08/22/07 11:17 08/22/07 09:39 08/22/07 11:47 08/23/07 11:11 08/29/07 10:03 09/08/07 11:34 08/28/07 12:44 08/28/07 12:48 08/23/07 09:34 08/23/07 11:25 08/22/07 13:53 08/23/07 11:25 08/23/07 09:46 08/23/07 11:11 www.encolabs.com lagaiatitom,„0,..osiganin Analysis Date/Time(s) 8/24/2007 14:00 8/23/2007 10:55 8/22/2007 09:39 8/22/2007 12:25 9/4/2007 14:33 8/30/2007 13:25 9/8/2007 17:33 8/28/2007 15:22 8/28/2007 20:50 8/23/2007 09:34 8/24/2007 11:07 8/24/2007 13:22 8/24/2007 12:55 8/24/2007 05:50 9/4/2007 14:33 Page 2 of 17 www.encolabs.com SAMPLE DETECTION SUMMARY cif n iD. r '; Atha G t , 74 MM;°MM's° Sn: �. �,< •wt. �¢ rye+} k y.�'j Yy y F.�f}+�' Via., r? Z^4J Y Analyte Results Flag MRL Units Method Notes Ammonia as N Barium Calcium Copper Fluoride Hardness Iron Magnesium Manganese Nitrate/Nitrite as N Phosphorus Total Alkalinity Total Dissolved Solids Total Kjetdahl Nitrogen Total Suspended Solids Turbidity Zinc 0.037 5.50 17600 1.60 0.24 51.1 5480 1750 172 0.031 0.028 50 120 0.059 5.0 20 306 J J J 0.10 10.0 100 10.0 0.10 0.67 50 100 10.0 0.10 0.030 15 10 0.050 1.0 1.0 10.0 mg/L ug/L ug/L ug/L mg/L mg/L ug/L ug/L ug/L mg/L mg/L mg/L mg/L mg/L mg/L NTU ug/L EPA 350.3 EPA 200.7 EPA 200.7 EPA 200.7 EPA 300.0 SM 23408 EPA 200.7 EPA 200.7 EPA 200.7 EPA 353.2 EPA 365.4 EPA 310.2 EPA 160.1 EPA 351.2 EPA 160.2 EPA 180.1 EPA 200.7 Page 3 of 17 Description: Hil!crest Well 3 Matrix: Waste Water Project: NPDES Hii!crest ANALYTICAL RESULTS Lab Sample ID: C711950-01 Sampled: 08/20/07 10:50 Sampled By: William Young www.encolabs.com Received: 08/20/07 17:18 Work Order: C711950 Metals by EPA 200 Series Methods * - ENCO Cary certified ana/yte [NC 591J Apalyte [CAS Numberl Results Flea Units DE MU MU Retch Method Analyzed Re Nato Antimony [7440-36-0] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Arsenic [7440-38-2] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Barium [7440-39-3] * 5.50 3 ug/L 1 0.20 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Beryllium [7440-41-7] * 0.70 U ug/L 1 0.70 1.00 7H23013 EPA 200.7 09/04/07 14:33 30H Cadmium [7440.43-9] * 0.50 U ug/l. 1 0.50 1.00 7H23013 EPA 200.7 09/04/07 14:33 30H Calcium [7440-70-2] * 17600 ug/L 1 7.00 100 7H23013 EPA 200.7 09/04/07 14:33 3DH Chromium [7440.47-3] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Copper [7440-50-8] * 1.60 3 ug/L 1 0.60 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Iron [7439-89-6] ' 5480 ug/L 1 20 50 7H23013 EPA 200.7 09/04/07 14:33 3DH Magnesium [7439-95-4] * 1750 ug/L 1 20 100 7H23013 EPA 200.7 09/04/07 14:33 30H Manganese [7439-96-5] * 172 ug/L 1 1.4 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Mercury [7439-97.6] * 0.11 U ug/L 1 0.11 0.20 7H29006 EPA 245.1 08/30/07 13:25 3DH Nickel [7440-02-0] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Selenium [7782-49-2] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Sliver [7440.22.4] * 2.0 U ug/L 1 2.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 30H Zinc [7440-66-6] * 306 ug/L 1 1.0 10.0 7H23013 EPA 200.7 09/04/07 14:33 3DH Page 4 of 17 Description: Hillcrest Well 3 Matrix: Waste Water project: NPDES Hillcrest Lab Sample ID: C711950-01 Sampled: 08/20/07 10:50 Sampled By: William Young www.encolabs.com Received: 08/20/07 17:18 Work Order: C711950 Classical Chemistry Parameters * - ENCO Cary certified ana/yte (NC 591) Apaiyte ICAS Numberl &BIM Eaa Units RE fen MU Rath Metes Maim! @x &gas Ammonia as N [NA]' 0.037 J mg/L 1 0.030 0.10 7H23008 EPA 350.3 08/23/07 09:34 CKN Hardness [NA] * 51.1 mg/L 1 0.10 0.67 7H23013 SM 2340E 09/04/07 14:33 JDH Nitrate/Nitrite as N [NA] * 0.031 3 mg/L 1 0.0066 0.10 7H22023 EPA 353.2 08/24/07 13:22 MIF Total Alkalinity [NA] * 50 mg/L 1 5.2 15 7H28013 EPA 310.2 08/28/07 15:22 PEV Total Dissolved Solids [NA] * 120 mg/L 1 10 10 7H23006 EPA 160.1 08/24/07 14:00 PEV Total Settleable Solids [NA] * 0.10 U mL/L 1 0.10 0.10 7H22005 EPA 160.5 08/22/07 09:39 PEV Total Suspended Solids [NA] * 5.0 mg/L 1 1.0 1.0 7H22013 EPA 160.2 08/23/07 10:55 IOC Turbidity [NA] * 20 NTU 1 0.50 1.0 7H16007 EPA 180.1 08/22/07 12:25 001 Q Page 5 of 17 Description: Hi!!crest Well 3 Matrix: Waste Water Project: NPDES Hillcrest Lab Sample ID: C711950-01 Sampled: 08/20/07 10:50 Sampled By: William Young www.encolabs.com Received: 08/20/07 17:18 Work Order: C711950 Classical Chemistry Parameters * - ENCO Orlando certified analyte[NC 4241 Anaiyte I'CAS Number] Bests Elm Unita RE MU NRI. Batch Mimi rya ilk Kolas Cyanide (total) [57-12-5] * 0.018 U mg/L 1 0.018 0.040 7H28002 EPA 335.2 O8/28/07 20:50 AH Fluoride [16984-48-8] * 0.24 mg/L 1 0.05 0.10 7I08003 EPA 300.0 09/08/07 17:33 RSA Phenolics [NA) * 0.02 U mg/L 1 0.02 0.05 7H22007 EPA 420.1 08/24/07 05:50 CAS Phosphorus [7723-14-0] * 0.028 3 mg/1. 1 0.020 0.030 7H23004 EPA 365.4 08/24/07 12:55 NS Total Kjeldahl Nitrogen [NA] * 0.059 mg/L 1 0.043 0.050 7H23002 EPA 351.2 08/24/07 11:07 NS This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 17 QUALITY CONTROL Metals by EPA 200 Series Methods - Quality Control www.encolabs.com Batch 7H23013 - EPA 3005A Blank (7H23013-BLK1) Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:01 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Magnesium Manganese Nickel Selenium Silver Zinc LCS (7H23013-BS1) 2.0 2.0 0.20 0.70 0.50 7.00 2.0 0.60 20 20 1.4 2.0 2.0 2.0 1.0 u u u u u u u u u u u u u u u 10.0 10.0 10.0 1.00 1.00 100 10.0 10.0 50 100 10.0 10.0 10.0 10.0 10.0 ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:08 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Magnesium Manganese Nickel Selenium Silver Zinc Matrix Spike (7H23013-MS1) Source: C711948-01 0.3 0.5 0.52 0.26 0.26 5.06 0.5 0.25 5 5 0.2 0.5 0.5 0.05 0.5 0.01 0.01 0.01 0.001 0.001 0.100 0.01 0.01 0.05 0.1 0.01 0.01 0.01 0.01 0.01 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 0.250 0.500 0.500 0.250 0.250 5.00 0.500 0.250 5.00 5.00 0.250 0.500 0.500 0.0500 0.500 104 82-119 104 82-117 104 72-125 102 75-121 103 72-120 101 81-111 101 78-119 102 80-117 101 84-133 110 81-117 99 76-123 103 78-116 108 82-127 100 80-128 99 80-120 Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:39 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony Arsenic Banum Beryllium Cadmium Calcum Chromium Copper Iron 0.3 0.5 0.54 0.26 0.26 36.7 0.5 0.26 5 0.01 0.01 0.01 0.001 0.001 0.100 0.01 0.01 0.05 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 0.250 0.500 0.500 0.250 0.250 5.00 0.500 0.250 5.00 -0.001 0.002 0.01 -0.0006 -0.0005 32.3 -0.006 -0.0006 0.4 103 38.138 104 64-126 105 74-119 104 70-131 103 68-121 88 63-131 101 73-120 103 75-123 101 48-144 Page 7 of 17 QUALITY CONTROL Metals by EPA 200 Series Methods - Quality Control www.encolabs.com Batch 7H23013 - EPA 3005A Matrix Spike (7H23013-MS1) Continued Source: C711948-01 Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:39 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Magnesium Manganese Nickel Selenium Silver Zinc Matrix Spike Dup (7H23013-MSD1) Source: C711948-01 8 0.4 0.5 0.5 0.05 0.5 0.1 0.01 0.01 0.01 0.01 0.01 mg/L mg/L mg/L mg/L mg/L mg/L 5.00 3 107 59-129 0.250 0.2 97 55-146 0.500 -0.001 104 64-126 0.500 0.001 108 65-129 0,0500 -0.0007 98 69-121 0.500 0.01 99 63-131 Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:46 Analyte Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Magnesium Manganese Nickel Selenium Silver Zinc Batch 7H29006 - EPA 7970A Blank (7H29006-BLK1) Spike Source %REC RPD. Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.3 0.01 0.5 0.01 0.54 0.01 0.26 0.001 0.26 0.001 36.3 0.100 0.5 0.01 0.26 0.01 5 0.05 8 0.1 0.4 0.01 0.5 0.01 0.5 0.01 0.05 0.01 0.5 0.01 mg/L 0.250 -0.001 105 38-138 2 30 mg/L 0.500 0.002 104 64-126 0.08 12 mg/L 0.500 0.01 105 74-119 0.3 11 mg/L 0.250 -0.0006 104 70-131 0.1 21 mg/L 0.250 -0.0005 103 68-121 0.5 12 mg/L 5.00 32.3 79 63-131 1 22 mg/L 0.500 -0.006 101 73-120 0.1 10 mg/L 0.250 -0.0006 103 75-123 0.3 16 mg/L 5.00 0.4 100 48-144 0.7 23 mg/L 5.00 3 106 59-129 0.7 22 mg/L 0.250 0.2 97 55.146 0.5 19 mg/L 0.500 -0.001 103 64-126 1 12 mg/L 0.500 0.001 108 65-129 0.1 10 mg/L 0.0500 -0.0007 102 69-121 4 12 mg/L 0.500 0.01 98 63-131 1 24 Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:25 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury LCS (7H29006-BS1) 0.11 U 0.20 ug/L Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:28 Analyte Mercury Matrix Spike (7H29006-MS1) Source: C711086-03 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 5.24 0.20 ug/L 5.00 105 85-115 Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:34 Analyte Mercury Matrix Spike Dup (7H29006-MSD1) I'age8of17 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 5.11 0.20 ug/L 5.00 0.11 U 102 70-130 Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:37 QUALITY CONTROL Metals by EPA 200 Series Methods - Quality Control www.encolabs.com Batch 7H29006 - EPA 7970A Matrix Spike Dup (7H29006-MSD1) Continued Source:C711086-03 Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:37 Analyte Spike Source 0/ABC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury Post Spike (7H29006-PS1) Source: C711086-03 5.17 0.20 uq/L 5,00 0.11 U 103 70-130 Prepared: 08/29/2007 10:03 Analyzed: 08/30/2007 12:45 Analyte Mercury Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 5.02 0.20 ug/L 5.00 0.002 100 0-200 Classical Chemistry Parameters - Quality Control Batch 7H16007 - NO PREP Blank (7H16007-BLK1) Prepared: 08/22/2007 11:47 Analyzed: 08/22/2007 12:25 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Turbidity LCS (7H16007-BS1) 0.50 U 1.0 NTU Prepared: 08/22/2007 11:47 Analyzed: 08/22/2007 12:25 Analyte Turbidity Duplicate (7H16007-DUP1) Source: C712007-01 Spike Source %REC RPD Result Flag MRL Units Level Result 0/ABC Limits RPD Limit Notes 21 1.0 NTU 20.0 104 91-116 Prepared: 08/22/2007 11:47 Analyzed: 08/22/2007 12:25 Analyte Turbidity Batch 7H22005 - NO PREP Duplicate (7H22005-DUP1) Source: C711988-01 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 3.1 1.0 NTu 3.3 Prepared & Analyzed: 08/22/2007 09:39 Analyte Total Settleable Solids Batch 7H22013 - NO PREP Blank (7H22013-BLK1) Spike Source %REC RPD Result Hag MRL Units Level Result %REC Limits RPD Limit Notes 2S 0.11 U 0.11 mL/L 0.11 U Prepared: 08/22/2007 11:17 Analyzed: 08/23/2007 10:55 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result 0/ABC Limits RPD Limit Notes Total Suspended Solids LCS (7H22013-BS1) 1.0 U mg/L Prepared: 08/22/2007 11:17 Analyzed: 08/23/2007 10:55 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Page 9 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control www.encolabs.com Batch 7H22013 - NO PREP LCS (7H22013-BS1) Continued Prepared: 08/22/2007 11:17 Analyzed: 08/23/2007 10:55 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Total Suspended Solids Duplicate (71122013-DUP1) Source:C712219-01 89 1.0 mg/L 00.0 111 82-119 Prepared: 08/22/2007 11:17 Analyzed: 08/23/2007 10:55 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Total Suspended Solids Batch 7H22023 - NO PREP Blank (7H22023-BLK1) 360 1.0 mg/L 360 Prepared: 08/22/2007 13:53 Analyzed: 08/22/2007 22:41 10 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N LCS (7H22023-BS1) 0.0066 u 0.10 mg/L Prepared: 08/22/2007 13:53 Analyzed: 08/22/2007 22:43 Analyte Nitrate/Nittnte as N Matrix Spike (7H22023-MS1) Source: C712264-01 Spike Source M REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1.2 0.10 mg/L 1.25 93 80-120 Prepared: 08/22/2007 13:53 Analyzed: 08/22/2007 23:34 Analyte Nitrate/Nitrite as N Matrix Spike Dup (7H22023-MSD1) Source: C712264-01 Spike Source ° oREC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes QM-07 3.2 0.10 mg/L 1.25 2.6 45 80-120 Prepared: 08/22/2007 13:53 Analyzed: 08/22/2007 23:37 Analyte Nitrate/Nitrite as N Batch 7H23006 - NO PREP Blank (7H23006-BLK1) Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 3.3 0.10 mg/L 1.25 2.6 52 60-120 3 25 QM-07 Prepared: 08/23/2007 08:58 Analyzed: 08/24/2007 14:00 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids LCS (7H23006-BS1) 10 10 mg/L Prepared: 08/23/2007 08:58 Analyzed: 08/24/2007 14:00 Analyte Total Dissolved Solids Duplicate (7H23006-DUP1) Source: C711948-01 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 330 10 mg/I. 330 111 Prepared: 08/23/2007 08:5B Analyzed: 08/24/2007 14:00 Page 10 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control www.encolabs.com Batch 7H23006 - NO PREP Duplicate (7H23006-DUP1) Continued Source: C711948-01 Prepared: 08/23/2007 08:58 Analyzed: 08/24/2007 14:00 Analyte Total Dissolved Solids Batch 7H23008 - NO PREP Blank (7H23008-BLK1) Result 170 Spike Source Flag MRL Units Level Result 10 mg/L 160 %REC %REC Limits Prepared & Analyzed: 08/23/2007 09:34 RPD RPD Limit Notes 10 Analyte Result Spike Source Flag MRL Units Level Result %REC %REC Limits RPD RPD Limit Notes Ammonia as N LCS (7H23008-BS1) 0,045 0.10 mg/L. Prepared & Analyzed: 08/23/2007 09:34 Analyte Ammonia as N Matrix Spike (7H23008-MS1) Source: C711850-01 Result 50 Spike Source Flag MRL Units Level Result 0.10 mg/L 53.0 %REC %REC Limits 101 80-120 Prepared & Analyzed: 08/23/2007 09:34 RPD RPD Limit Notes Analyte Ammonia as N Matrix Spike Dup (7H23008-MSD1) Source: C711850-01 Result 47 Spike Source Flag MRL Units Level Result 0.10 mg/L 50.0 0.13 %REC %REC Limits 94 80-120 Prepared & Analyzed: 08/23/2007 09:34 RPD RPD Limit Notes Analyte Ammonia as N Batch 7H23013 - EPA 3005A Blank (7H23013-BLK1) Result Si Spike Source Flag MRL Units Level Result 0.10 mg/L 50.0 0.13 %REC RPD %REC Limits RPD Limit Notes 131 a0-120 Prepared: 08/23/2007 11:11 Analyzed: 09/04/2007 13:01 25 Analyte Result Spike Source Flag MRL Units Level Result %REC %REC Limits RPD RPD Limit Notes Hardness Batch 7H28013 - NO PREP Blank (7H28013-BLK1) 0.10 0 0.67 my/L Prepared: 08/28/2007 12:44 Analyzed: 08/28/2007 15:18 Analyte Result Spike Source Flag MRL Units Level Result %REC %REC Limits RPD RPD Limit Notes Total Alkalinity LCS (7H28013-BS1) 5.2 15 mg/L Prepared: 08/28/2007 12:44 Analyzed: 08/28/2007 15:19 Analyte Total Alkalinity Result 88 Spike Source Flag MRL Units Level Result 15 mg/L 100 %REC %REC Limits 88 80-120 RPD RPD Limit Notes Page 11 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control www.encolabs.com Batch 7H28013 - NO PREP Matrix Spike (7H28013-MS1) Source: C712066-04 Prepared: 08/28/2007 12:44 Analyzed: 08/28/2007 15:27 Analyte Total Alkalinity Matrix Spike Dup (7H28013-MSD1) Source: C712066-04 Spike Source %REC RPD Result flag MRL Units Level Result %REC Limits RPD Limit Notes 220 15 mg/L 100 220 5 80-120 Prepared: 08/28/2007 12:44 Analyzed: 08/28/2007 15:28 QM-02 Analyte Total Alkalinity Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 220 15 mg/L 100 220 4 00-120 0.6 25 Q9-02 OUALITY CONTROL Classical Chemistry Parameters - Quality Control Batch 7H22007 - NO PREP Blank (7H22007-BLK1) Prepared: 08/22/2007 11:30 Analyzed: 08/23/2007 10:40 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Phenolics Blank (7H22007-BLK2) 0.02 U 0.05 mg/L Prepared: 08/23/2007 09:46 Analyzed: 08/24/2007 05:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Phenolics LCS (7H22007-BS1) 0.02 U 0.05 mg/L Prepared: 08/22/2007 11:30 Analyzed: 08/23/2007 10:40 Analyte Phenolics LCS (71122007-852) Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.47 0.05 mg/L 0.500 94 79-104 Prepared: 08/23/2007 09:46 Analyzed: 08/24/2007 05:50 Analyte Phenolics Matrix Spike (7H22007-MS1) Source: A704126-06 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.48 0.05 mg/L 0.500 96 79-104 Prepared: 08/22/2007 11:30 Analyzed: 08/23/2007 10:40 Analyte Phenolics Matrix Spike Dup (7H22007-MSD1) Source: A704126-06 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.45 0.05 m9/L 0.500 0.02 U 50 79-104 Prepared: 08/22/2007 11:30 Analyzed: 08/23/2007 10:40 Analyte Phenolics Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.46 0.05 mg/L 0.500 0.02 U 92 7 9-104 2 10 Page 12 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control www.encolabs.com Batch 7H23002 - NO PREP Blank (7H23002-BLK1) Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 10:53 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Total Kjeldahl Nitrogen LCS (7H23002-BS1) 0.043 U 0.050 mg/L Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 10:56 Analyte Total Kjeldahl Nitrogen Matrix Spike (7H23002-MS1) Source: A704727-01 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 100 85-108 2.5 0.050 m9/L 2.50 Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 10:58 Analyte Total Kjeldahl Nitrogen Matrix Spike Dup (7H23002-MSD1) Source: A704727-01 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.050 mg/L 2.50 0.85 98 86-108 3.3 Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 10:59 Analyte Total Kjeldahl Nitrogen Batch 7H23009 - NO PREP Blank(7H23004-BLK1) Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes ; 3.3 0.050 mg/L 2.50 0.85 99 55-105 Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 12:36 Analyte Phosphorus LCS(7H23004-851) Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.020 0.030 mg/L Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 12:44 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 96 89-107 Phis; h0rus Matrix Spike (7H23004-MS1) Source: A704727-01 2.4 0.030 m9/L 2.50 Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 12:46 Analyte Phosphorus Matrix Spike Dup (7H23004-MSD1) Source: A704727-01 Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 0.030 mg/L 250 0.050 97 89.107 2.5 Prepared: 08/23/2007 11:25 Analyzed: 08/24/2007 12:47 Analyte Phosphorus Batch 7H28002 - NO PREP Blank(7H28002-BLK1) Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 2,5 0.030 mg/L 2.50 0.060 96 89-107 - 10 Prepared: 08/28/2007 11:34 Analyzed: 08/28/2007 20:50 Page 13 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control 1 1 C-.1 '...- Is. �4, www.encolabs.com Batch 7H28002 - NO PREP Blank (7H28002-BLK1) Continued Prepared: 08/28/2007 11:34 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) Blank (7H28002-BLK2) 0.018 U 0.040 mg/L Prepared: 08/28/2007 12:48 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) LCS (7H28002-BS1) 0.018 U 0.040 mg/L Prepared: 08/28/2007 11:34 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) LCS (7H 28002-BS2) 0.20 0.040 mg/L 0.200 99 84-113 Prepared: 08/28/2007 12:48 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) Matrix Spike (7H28002-MS1) Source: A704744-01 0.22 0.040 mg/L 0.200 109 84-113 Prepared: 08/28/2007 11:34 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) Matrix Spike Dup (7H28002-MSD1) Source: A704744-01 0.22 0.040 mg/L 0.200 0.018 U 110 84-113 Prepared: 08/28/2007 11:34 Analyzed: 08/28/2007 20:50 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) Batch 7108003 - NA Blank (7108003-BLK1) 0.22 0.040 mg/L 0.200 0.018 U 108 04-113 2 Prepared: 09/08/2007 11:34 Analyzed: 09/08/2007 12:31 1C Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Fluoride LCS (7108003-BS1) 0.05 U 0.10 mg/L Prepared: 09/08/2007 11:34 Analyzed: 09/08/2007 12:49 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Fluoride Matrix Spike (7108003-MS1) Source: A704340-01 5.1 0.10 mg/L 5.00 102 81-117 Prepared: 09/08/2007 11:34 Analyzed: 09/08/2007 13:07 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Fluoride 5.0 0.10 mg/L 5.10 0.05 U 99 3:-117 Page 14 of 17 QUALITY CONTROL Classical Chemistry Parameters - Quality Control ' I s� 11. cs t. ��'--�" , J ad:..�,......,.....�.....e www.encolabs,com Batch 7108003 - NA Matrix Spike Dup (7I08003-MSD1) Source: A704340-01 Prepared: 09/08/2007 11:34 Analyzed: 09/08/2007 13:25 Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Fluoride 4.9 0.10 m9/L 5.10 0.05 U 97 81-117 2 16 Page 15 of 17 www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. . D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. Analysis performed outside of method - specified holding time. The RPD and/or percent recovery for this QC spike sample cannot be accurately calculated due to the high concentration of analyte inherent in the sample. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. Q QM-02 Page 16 of 17 ENVIRONMENTAL CONSERVATION LABORATORIES CHAIN -OF -CUSTODY RECORD 10775Cet4xtPoaDr. 4510Extsat3ntPoi Court. Sues211 1014Pas ttriWrl Govan 37421 1ttksona , FL 2.22164A9 Gary. NG 27113 twigs -mu Fax (WI MOO MD IS X07 fa. (OO) 296 2;0 0191 M-1& Fat 0191117t9S05 lictiocstta0 00446111 Aqua NC Denver'(AQ004) Med rtarbec [none] Page of 4163 Sinclair Street copluzu Denyer, NC 28037 iN (704) 489-9404 Savptt(i)fisFa, N4'tabon 1Pt1 Sarr4t(s) Fax (704) 489-9409 PropCt 11 se NPDES Hilicrest POKI[RIM Wo Debbie Gentry 1ebbbie Gentry Fatal a01knktiees ti Raque&It}d Tvittatlhsgd Tunes NctoclRus,roastscapita to nmt atattytottaaej Standard Expedited Due 1___ _1 Sarni m trem 1rbM&tl ael NlI itzt+xt.Well 3 Ccae i mDub Cnitasr t . Carp fGab UF{ate ( coded w 18W A of Ccrisisvi • c-. 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