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HomeMy WebLinkAboutWQ0044550_More Information (Received)_20231113JOHN R. HA 1 ]L 1 V q RE PROFESSIONAL CONSULTING ENGINEER 2112 White Oak Road..... Raleigh, North Carolina.....27608 919.818.2077.................iackharman53@gmail.com October 15, 2023 Mr. Zachery J. Mega, Engineer III NCDENR-Non Discharge Unit; Engineering & Permits 512 N Salisbury St. Raleigh, NC 27601 Re: Response to DWR Comment Letter of 09/20/23 WQ0044550-SFR Wastewater Irrigation System -Chatham County, NC 1725 Farrington Road -Chatham County Dear Mr. Mega: This purpose of this correspondence is to offer reply to your comments/additional information requested in your letter of September 20, 2023. Responses below will be given, more or less, in the order of the items listed in your letter. Items "A" & B": No Comments Provided, No Response needed. Item "C" Application: 1. Comment: "...Items VI.2.b & VI.2.d —There are additional tanks (PT-347 and PT-484) listed in these sections that are not mentioned anywhere else....." Response: Application Form has been amended accordingly. 2. Comment: "The specified pump capacity (flow and TDH) for the irrigation pump does not match the Specifications (Section 24 on Page 4) and the Engineering Calculations (Page 4) ". Response: Application Form, Calculations, & Specifications have been amended accordingly. 3. Item VIIA. Comment: "1-4 " is listed under the "Field" column but there is only one (1) proposed irrigation site. Response: The wastewater dispersal area is one (1) Field comprised of four (4) zones, so the Application is revised to reflect one (1) Field. Item VIIA 2(b) Comment: "Please revise the emitter wetted area to be for a single drip emitter " Response: The Application has been revised to reflect the calculated wetted area of each emitter. Item "D" Property Ownership Documentation: No Comments Provided, No Response needed. Item "E" Setback Waivers: Comment: "The setback waiver for 1727 Farrington Road needs to include reduced setbacks from the irrigation site to property lines" Response: A revised and executed setback waiver is included with this resubmittal. Item "F" Soil Evaluation: Responses to DEQ Review Comments will be addressed by Soil & Environmental Consultants, P.A, submitted herewith under separate cover. Item "G" Engineering Plans: 1. Comment Sheet 2: " If this sheet will serve as the Site Map for the proposed facility, please delineate the compliance and review boundaries per 1 SA NCAC 02L . 0107(i) and 02L.0108 and show soil mapping units for all irrigation sites. [1 SA NCAC 02T . 0604(d)]. Please also show the proposed storage units. " Response: The appropriate plan sheets have been amended in accordance with the comments. 2. Comment Sheet 2A-: "a. The property line setback dimension shown for the irrigation site on the north side should be based on the wetted area boundary and not the extent of the drip lines. " b. "Please label the recirculation/storage tank. " Response: For all intent and purposes the extent of the drip lines constitutes the wetted area. The 20' sanctioned setback applies to any portion of the dispersal components within the application area. The Recirculation / Storage Tank label has been added. Comment: "On page 4 of the engineering plan set, the "Section Thru EZ Treat Pod " detail list it as a Model 1200 EZ- Treat system. Please update this to reflect the currently designed Model 600 EZ- Treat system. " Response: The plans have been corrected in accordance with the comment. 3. Comment Sheet 3: "Please show the location of the air release valve(s) and the highest elevation drip emitter per Instruction G of Form: SFRWWIS 06-16. Response: Valves for Air Releases, and Check Valves are shown in typical details on Sheet 6 and apply to each Supply & Return Manifolds whose locations are noted on Sheet 3. There are no drains. Other miscellaneous zone control valves, meters, etc. are illustrated on Sheet 7. The highest emitter elevation is shown on Sheet 3. 4. Comments Sheet 4: "a. The E-Z Treat section view specifies Model 1200 on the left and Model 600 on the right. " " b.. The table of elevations lists the septic tank outlet pipe ("C' ) higher than the inlet pipe ("B'). " Response: The comments offered have been addressed in the revised Plan Sheet 4 Item "11" Specifications: Comments: "1. Please revise the recirculation tank capacity in Section 10 on Page 2 to specify gallons. "2. The dose range and dose duration for a single pod system listed in Section 17 on Page 3 do not match the 33 gallons per dose and 2.4-minute duration every 20 minutes specified in the Engineering Calculations or the summary table on Page 7. " "3. Section 19 on Page 4 refers to a "Three Zone Residential Drip Hydraulic Unit", but there are four (4) irrigation zones proposed for the irrigation site" "4. The summary table on Page 7 lists 600 GPD for the ADF instead of 480 GPD, which was determined as the total wastewater flow in Item IV.5 of Form: SFRWWIS 06-16. " Response: The four comments provided have been addressed through revisions made to the Specifications. Item "I" Engineering Calculations: Comments: 1. "The media filter dosing calculation on Page 3 references a "minimum of 7 times ADF" per the Manufacturer's recommendations, however, four (4) times the ADF is used in the equation that follows. 600 GPD is used as the ADF instead of 480 GPD, which was determined as the total wastewater flow in Item IV.S of Form: SFRWWIS 06-16. 2. TDH Calculation — a. "The number of laterals listed per irrigation zone does not match the following pages and the Engineering Plans. " b. "The pump "off' elevation specified does not match the previous page (Page 4) and the Engineering Plans. Response: The comments provided have been addressed through revisions made to the Engineering Calculations and Plan Sheet. Item "J Site Map: Project Number: 10//01 /23 Page 2 of 3 Comment: ",,,please delineate the compliance and review boundaries per 15A NCAC 02L .0107(i) and 02L .0108 and show soil mapping units for all irrigation sites. [15A NCAC 02T . 0604(d)] " Response: Compliance and Review Boundaries have been referenced by notation, as well as the Soil Mapping Series for the Site. This notation added to Sheet 2 of 8 of the Site Plans in accordance with the Comment. Item "K" Operation & Maintenance Plan: 1. Comment: "No Operation & Maintenance Plan has been provided. Please provide an Operation & Maintenance Plan pursuant to 15A NCAC 02T. 0604(t). " Response: The Operation & Maintenance Schedule is illustrated and featured in the Plans on the top -middle of Sheet 8 of 8. Item "L" Operational Agreement: Comment: "The submitted O&MAgreement was completed on an outdated version of the form. Please resubmit using the latest version of the form found on the Non -Discharge website. Please also add the assigned permit number (WQ0044550) to the form. ". Response: The new Operational Agreement is attached, signed by the Permitee. Item "M" Additional Documentation: - Threatened or Endangered Aquatic Species: Comment: "A Federally -listed species is documented within the project area. The North Carolina Natural Heritage Program (NCNHP) recommends that the US Fish and Wildlife Service (USFWS) be contacted for further guidance ". - Response: The documentation provided by the Natural Heritage Program had many species of birds, plants, lizards, etc. listed as being present in the subject project area of interest. However, the only "aquatic" species found present was a crayfish which did not carry the distinction of being "threatened or endangered" in its "Status" column. This project is not expected to impact any waterways, it is theorized that no impact on any aquatic species will be affected. It is hoped that the foregoing responses are satisfactory for staff to conclude their review pursuant to permit issuance. If any questions arise regarding this matter, please do not hesitate to call. Regards, (7044, le. Mar4wafr John R. Harman, PE Consulting Engineer (NC PE #9810) Attachments: Soils Consultants Comment Reponses Revised Plans, Calcs, & Specifications Revised Application & New O&M Agreement Form Revised Setback Waiver-1727 Farrington Rd Granted to 1725 Farrington Rd Project Number: 10//O 1 /23 Page 3 of 3 DWR State of North Carolina Department of Environmental Quality Division of Water Resources Division of Water Resources 15A NCAC 02T .0600 — SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEMS INSTRUCTIONS FOR FORM: SFRWWIS 06-16 & SUPPORTING DOCUMENTATION The Division of Water Resources will not accept an application package unless all instructions are followed. Plans, specifications and supporting documents shall be prepared in accordance with 15A NCAC 02L .0100, 15A NCAC 02T .0100, 15A NCAC 02T .0600, 15A NCAC 18A .I900, Division Policies and good engineering practices. Failure to submit all required items may result in the application being returned, and will necessitate additional processing and review time. For more information, visit the Water Quality Permitting Section's Non -Discharge Permitting Unit website General — When submitting a non -discharge application to the Water Quality Permitting Section's Non -Discharge Permitting Unit, please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time by assisting the reviewer in locating the required materials and potentially reducing the amount of requested additional information. Unless otherwise noted the Applicant shall submit one on 'nal and at least two copies of the aRplication and siMporting documentation. A. Cover Letter (All Application Packages): ® List all items and attached supporting documentation included in the application package, as well as a brief description of the requested permitting action. B. Application Fee (All New and Major Modification Application Packages): ® Submit a check, money order or electronic funds transfer made payable to: North Carolina Department of Environmental Quality (NCDEQ). ❑ The appropriate fee amount for new and major modification application packages may be found at: Standard Review Project Fees. C. Single -Family Residence Wastewater Irrigation Systems (FORM: SFRWWIS 06-16) Application (All Application Packages): ® Submit the completed and appropriately executed Single -Family Residence Wastewater Irrigation Systems (FORM: SFRWWIS 06-16) application. Any unauthorized content changes to FORM: SFRWWIS 06-16 shall result in the application package being returned. If necessary for clarity or due to space restrictions, attachments to the application may be made, as long as the attachments are numbered to correspond to the section and item to which they refer. ® If the Applicant Type in Item 1.2. is a corporation or company, provide documentation it is registered for business with the North Carolina Secretary of State. ❑ If the Applicant Type in Item I.2. is a partnership, sole proprietorship, trade name, or d/b/a, enclose a copy of the certificate filed with the Register of Deeds in the county of business. ® The facility name in Item I1.2. shall be consistent with the facility name on the plans, specifications, agreements, etc. ® The Professional Engineer's Certification on Page 6 of the Single -Family Residence Wastewater Irrigation Systems (FORM: SFRWWIS 06-16) application shall be signed, sealed and dated by a North Carolina licensed Professional Engineer. ® The Applicant's Certification on Page 6 of the Single -Family Residence Wastewater Irrigation Systems (FORM: SFRWWIS 06-16) application shall be signed in accordance with 15A NCAC 02T .0106[b). Per 15A NCAC 02T .010G c , an alternate person may be designated as the signing official if a delegation letter is provided from a person who meets the criteria in 15A NCAC 02T .0106fb). ❑ If this project is for a renewal without modification, use the Non-Dischame System Renewal (FORM: NDSR) application. D. Existing Permit (All Modification Packages): ❑ Submit the most recently issued existing permit. ❑ Provide a list of any items within the pen -nit the Applicant would like the Division to address during the permit modification (i.e., compliance schedules, permit description, monitoring, permit conditions, etc.). E. Property Ownership Documentation (All Application Packages): ® Per 15A NCAC 02T .0604(e), the Applicant shall demonstrate they are the owner of all property containing the wastewater treatment, storage and irrigation facilities: ® Legal documentation of ownership (i.e., contract, deed or article of incorporation), or ❑ Written notarized intent to purchase agreement signed by both parties with a plat or survey map, or ❑ Written notarized lease agreement that specifically indicates the intended use of the property and has been signed by both parties, as well as a plat or survey map. Lease agreements shall adhere to the requirements of 15A NCAC .02L .0107. ❑ Provide all agreements, easements, setback waivers, etc. that have a direct impact on the wastewater treatment, conveyance, storage and irrigation facilities. INSTRUCTIONS FOR FORM: SFRWWIS 06-16 & SUPPORTING DOCUMENTATION Page I of Soil Evaluation (All Application Packages that include new irrigation sites): ®Per ] 5A NCAC 02T .0604Iand current Division Policy, submit a detailed soil evaluation that has been signed, sealed and dated by a North Carolina Licensed Soil Scientist and includes at a minimum: ❑ The report shall identify all the sites/fields with project name, location, and include a statement that the sites/fields were recommended for the proposed land application activity. ❑ Note, if the soil evaluation was performed more than one year prior to the submittal of this application package, a statement shall be included indicating that the site has not changed since the original investigation. ❑ Field delineated detailed soils map meeting all of the requirements of the Sail Scientist Evaluation Policy. ❑ Soil profile descriptions meeting all of the requirements of the Soil Scientist Evaluation Policv. ❑ Provide all soil boring logs performed at the site. ❑ Standard soil fertility analysis conducted no more than one year prior to permit application for each map unit in the soil map legend for the following parameters: ❑ Acidity ❑ Exchangeable sodium percentage (by calculation) ❑ Phosphorus ❑ Base saturation (by calculation) ❑ Magnesium ❑ Potassium ❑ Calcium ❑ Manganese ❑ Sodium ❑ Cation exchange capacity ❑ Percent humic matter ❑ Zinc ❑ Copper ❑ pH Note: The number of samples will vary depending upon the project size and past land use history. Multiple samples for each map unit are required if the irrigation zones are separated, and cropland, pasture, hay land and wooded areas shall be sampled separately for the same map unit due to past differences in soil fertility management. ® Saturated hydraulic conductivity (KSAT) data that shall include at a minimum: ❑ A minimum of three KSAT tests shall be conducted in the most restrictive horizon for each soil series in the soil map. ❑ All KSAT tests shall be conducted in areas representative of the site. ❑ All KSAT tests shall be run until steady-state equilibrium has been achieved. ❑ All collected KSAT data shall be submitted, including copies of field worksheets showing all collected readings. ❑ Submit a soil profile description for each KSAT data point that shall extend at least one foot below the tested horizon. ® Soil evaluation recommendations shall include at a minimum: ❑ A brief summary of each map unit and its composition and identification of minor contrasting soils. ❑ Maximum irrigation precipitation rate (in/hr) for each soil/map unit within the proposed irrigation areas. ❑ Identification of areas not suitable for wastewater irrigation. ❑ Recommended geometric mean KSAT rate to be used in determining the SFR Loading Rate Group for each soil/map unit based upon in -situ measurement of the saturated hydraulic conductivity from the most restrictive horizon. ❑ Recommended annual hydraulic loading rate (in/yr) for each soil/map unit within the proposed irrigation areas based upon in -situ KSAT measurements form the most restrictive soil horizon. The recommended loading rate must be in accordance with the Single -Family Residence Wastewater Irrigation System Loading Rate Calculation Policy. ❑ A completed copy of the Single -Family Residence Loading, Rate Workbook (i.e., Project Information, Potential Evapotranspiration, Precipitation, and Irrigation Area Calculations). G. Engineering Plans (All Application Packages): ® Per 15A NCAC 02T .0604{r]{ 1 }, submit standard size and 11 x 17-inch plan sets that have been signed, sealed and dated by a North Carolina licensed Professional En ineer. ® At a minimum, the engineering plans shall include the following items: ® Table of contents with each sheet numbered, as well as cross-referenced with the appropriate application items. ® A general location map with at least two geographic references, vicinity map, topographic map and site map. ® A process and instrumentation diagram showing all flow, recycle/return, electrical paths, etc. ® Plan and profile views of all treatment and storage units, including their piping, valves, and equipment (i.e., pumps, etc.), as well as their dimensions and elevations. ® Details of all piping, valves, pumps, precipitation/soil moisture sensors, etc. ® A hydraulic profile from the treatment plant headworks to the highest irrigation point. ® The irrigation area with an overlay of the suitable irrigation areas depicted in the Soil Evaluation. ® Each nozzle/emitter and their wetted area influence, and each irrigation zone labeled as it will be operated. ® Locations within the irrigation system of air releases, drains, control valves, highest irrigation nozzle/emitter, etc. ® Plans shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY, NOT FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the plans may be labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION. INSTRUCTIONS FOR FORM: SFRWWIS 06-16 & SUPPORTING DOCUMENTATION Page 2 of 4 H. Specifications (All Application Packages): ® Per 15A NCAC" 02T .0604(c)(2), submit specifications that have been signed, sealed and dated by a North Carolina licensed Professional Engineer. ® At a minimum, the specifications shall include the following items: ® Table of contents with each section/page numbered, as well as cross-referenced with the appropriate application items. ® Detailed specifications for each treatment/storage/irrigation unit, as well as all piping, valves, equipment (i.e., pumps, etc.), nozzles/emitters, precipitation/soil moisture sensor, audible/visual high water alarms, liner material, etc. ® Site Work (i.e., earthwork, clearing, grubbing, excavation, trenching, backfilling, compacting, fencing, seeding, etc.) ® Materials (i.e., concrete, masonry, steel, painting, method of construction, etc.) ® Electrical (i.e., control panels, etc.) ® Means for ensuring quality and integrity of the finished product, including leakage, pressure and liner testing. ® Specifications shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY, NOT FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the specifications may be labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION. Engineering Calculations (All Application Packages): ® Per 15A NCAC 02T .0604(c)(3 , submit engineering calculations that have been signed, sealed and dated by a North Carolina licensed Professional Engineer. ® At a minimum, the engineering calculations shall include the following items: ❑ Hydraulic and pollutant loading calculations for each treatment unit demonstrating how the designed effluent concentrations in Application Item V.I. were detennined (Note: "black box" calculations are unacceptable). ® Sizing criteria for each treatment unit and associated equipment (i.e., pumps, etc.). ® Total and effective storage calculations for each storage unit. ® Friction/total dynamic head calculations and system curve analysis for each pump used. ® Manufacturer's information for all treatment units, pumps, irrigation system, etc. ® Flotation calculations for all treatment and storage units constructed partially or entirely below grade. ® Demonstrate the designed maximum precipitation and annual loading rates do not exceed the recommended rates. ❑ Demonstrate the specified auxiliary power source is capable of powering all essential treatment units. ❑ A properly completed and executed Single -Fancily Residence Loading Rate Workbook. J. Site Map (All Application Packages): ® Per 15A NCAC 02T .0604(d1, submit standard size and 11 x 17-inch site maps that have been signed, sealed and dated by a North Carolina licensed Professional E-njzineer and/or Professional Land Surve or. ® For clarity, multiple site maps of the facility with cut sheet annotations may be submitted. ® At a minimum, the site map shall include the following: ® A scaled map of the site with topographic contour intervals not exceeding two feet and showing all facility -related structures and fences within the wastewater treatment, storage and irrigation areas. ® Soil mapping units shown on all irrigation sites. ❑ The location of all wells (including usage and construction details if available), streams (ephemeral, intermittent, and perennial), springs, lakes, ponds, and other surface drainage features within 500 feet of all wastewater treatment, storage and irrigation sites. • Delineation of the compliance and review boundaries per 15A NCAC 02L .0i07(i) and .0109. ® Setbacks as required by 15A NCAC 02T. ® Site property boundaries within 500 feet of all wastewater treatment, storage and irrigation sites. ❑ All habitable residences or places of public assembly within 500 feet of all treatment, storage and irrigation sites. K. Operation and Maintenance Plan (All Application Packages): ® Per 15A NCAC 02T .0604(l), submit an operation and maintenance (O&M) plan encompassing all wastewater treatment, storage and irrigation systems that at a minimum shall address: ® How to perform routine inspections. ® A maintenance schedule. ® A troubleshooting guide. ® A layman's explanation of the wastewater treatment, storage and irrigation systems. ❑ A crop maintenance and management plan. ❑ Note a final O&M Plan may be submitted with the partial and/or final Engineering Certification required under 15A NCAC 02T .01 16, however, a preliminary O&M Plan shall be submitted with each application package. L. Operation and Maintenance Agreement (All Application Packages): ® Per 15A NCAC 02T .0604(h), submit a notarized Operation and Maintenance Agreement that has been signed and dated by all deeded property owners. INSTRUCTIONS FOR FORM: SFRWWIS 06-16 & SUPPORTING DOCUMENTATION Page 3 of M. County Health Department Denial Letter (All New Application Packages): ® Per 15A NCAC 02T .0604(_), provide a written letter from the local County Health Department denying the site for all subsurface systems. N. Floodway Regulation Compliance (All Application Packages where any portion of the wastewater treatment, storage and irrigation system is located within the 100-year floodplain): ❑ Per 15A NCAC 02T .0105(c)(9), provide written documentation from all local governing entities that the facility is in compliance with Article 21 Part 6 of Chapter 143 of the General Statutes (i.e., § 143-215.51. through § 143-215.61.). O. Threatened or Endangered Aquatic Species Documentation (All Application Packages): ® Per 15A NCAC 02T .0105(c)(10), submit documentation from the Department's Natural Heritage Program demonstrating the presence or absence of threatened or endangered aquatic species within the boundary of the wastewater treatment, storage and irrigation facilities. ❑ If the facility directly impacts such species, this documentation shall provide information on the need for permit conditions pursuant to 15A NCAC 02 B3 O I I0. P. Other Environmental Permits (All Application Packages that include stream or wetland crossings): ❑ Per 15A NCAC 02T .0105(c)I6I, submit a copy of either the approved permit/certification or a letter from the appropriate review agency acknowledging receipt of the application for the following applicable permits/certifications: ❑ Division of Water Resources' Water Quality PemiittinP_ Scction — Wetlands 401 Certification ❑ US Army Corps oFEngiricers South Atlantic Division — Nationwide 12 or Section 404 permit ❑ Per 15A NCAC 02T .0105(c)(6), this application shall be considered incomplete or the resulting permit may be issued conditionally, if a pending issuance of any of the aforementioned pen-nits/certifications directly impact the facility herein. THE COMPLETED APPLICATION AND SUPPORTING DOCUMENTATION SHALL BE SUBMITTED TO: NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES WATER QUALITY PERMITTING SECTION NON -DISCHARGE PERMITTING UNIT By U.S. Postal Service: 1617 MAIL SERVICE CENTER RALEIGH, NORTH CAROLINA 27699-1617 TELEPHONE NUMBER: (919) 807-6464 By Courier/Special Deliver: 512 N. SALISBURY ST. RALEIGH, NORTH CAROLINA 27604 FAX NUMBER: (919) 807-6496 INSTRUCTIONS FOR FORM: SFRWWIS 06-16 & SUPPORTING DOCUMENTATION Page 4 of State of North Carolina DWR Department of Environmental Quality Division of Water Resources Division of Water Resources 15A NCAC 02T .0600 — SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEMS FORM: SFRWWIS 06-16 I. APPLICANT INFORMATION: 1. Applicant's name as appears on deed, contract or lease agreement: Blacksmith Ranch, LLC 2. Applicant type: ❑ Individual ® Corporation ❑ General Partnership 3. Signature authority's name: William Foy per 15A NCAC 02T .0106th]Title: Registered Agent 4. Applicant's mailing address: 1719 Farrington Road City: Apex State: NC Zip: 27523- 5. Applicant's contact information: Telephone number: (919) 219-6233 Fax number: (_) = Email Address: beauxb m a.. ail.com II. FACILITY INFORMATION: 1. Facility name: Wastewater Treatment & Surface Drip Irrigation Disposal System for a 4 Bedrrom Residence-1725 Farrington Rd. Chatham Co., NC 2. Facility status: ❑ Existing or ® Proposed 3. Facility's physical address: 1725 Farrington Road City: Apex State: NC Zip: 27523- County: Chatham 4. Wastewater Treatment Facility Coordinates: Latitude: 35' 45' 3 7 " Longitude: -79' 00' 34" Provide the following latitude and longitude coordinate determination information: Datum: NAD83 Level of accuracy: Nearest second Method of measurement: Digital or raw photo extraction 5. USGS Map Name: Farrington 1993 III. CONSULTANT INFORMATION: 1. Engineer's name: John R. Harman, PE License Number: NCPE 9810 Firm: Consulting Engineer Engineer's mailing address: 2112 White Oak Rd City: Raleigh State: NC Zip: 27608- Telephone number: (919) 818-2077 Fax number: (_) = Email Address:,iackharman53CCb`gmail.cam 2. Soil Scientist's name: Richard A Pontello License Number: 1232 Firm: Soil & Envir nmental Consultants PA Soil Scientist's mailing address: 84I2 Falls of Neuse Rd City: Raleigh State: NC Zip: 27615- Telephone number: (919) 669-3235 Fax number: (_) = Email Address: 02ontelto cvsandec.com IV. GENERAL REQUIREMENTS —15A NCAC 02T .0100: 1. Application type: ® New ❑ Major Modification ❑ Minor Modification If a modification, provide the existing permit number: WQ00 and most recent issuance date: 2. Application fee: $60 3. Describe the origin of the wastewater and provide a brief project description: Domestic Origin: Septic and Advanced Pretreatment via Recirculating Media Filter, & Storage pri.or to Surface Drip Application 4. Wastewater flow: 480 GPD FORM: SFRWWIS 06-16 Pagel of6 DWR State of North Carolina Department of Environmental Quality Division of Water Resources Division of Water Resources 15A NCAC 02T .0600 — SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEMS FORM: SFRWWIS 06-16 FORM: SFRWWIS 06-16 Page 2 of 6 IV. GENERAL REQUIREMENTS — 15A NCAC 02T .0100 (CONTINUED): 5. Using 15A NCAC 02T .01 14, explain how the total wastewater flow was determined: Establishment Type Flow Basis FFlow Unit Number of Units Flow Four Bedroom Single Family Residence gal/Day 120 4 480 GPD gal/ GPD Total 480 GPD 6. Per 15A NCAC 02T .0105(c)(6), if the project includes any stream or wetland crossings, what is the status of the following applicable permits/certifications? Permit/Certification Date � Droved ate Permit/Certification No. Agency Reviewer Submitted A Nationwide 12 or 404 Wetlands 401 7. What is the nearest 100-year flood plain elevation to the facility? 237.8 feet mean sea level. Source: FRIS Panel 9782 Are any treatment, storage or irrigation systems located within the 100-year flood plain? ❑ Yes or ® No If yes, has documentation of compliance with Article 21 Part 6 of Chapter 143 of the G.S. been provided? ❑ Yes or ❑ No V. DESIGN CRITERIA AND SETBACKS— 15A NCAC 02T .0605 & .0606: 1. Provide the estimated influent and designed effluent concentrations from the engineering calculations to verify conformance with 15A NCAC 02T .0605(b) for the following parameters: Estimated Influent Designed Effluent Minimum Required Parameter Concentration Concentration Degree of Treatment (monthly averse Prior to Storage Biochemical Oxygen Demand 350 mg/1 <10 mg/l <_30 mg/1 BODS Total Suspended Solids (TSS) 350 mg/1 <10 mg/1 <30 mg/I Ammonia Nitrogen (NH3-N) 30 mg/1 <10 mg/1 <_15 mg/1 Fecal Coliforms <200 per 100 ml :!�200 colonies/100 ml 2. Per 15A NCAC 02T .0605(c), is the effluent placed directly in contact with GA classified groundwater? ❑ Yes or ® No If yes, have predictive calculations demonstrating such placement will not contravene GA groundwater standards been provided? ❑ Yes or ❑ No 3. Per 15A NCAC 02T .0605(d), are any of the treatment or storage units excavated into bedrock? ❑ Yes or ❑ No If yes, has a 10 millimeter synthetic liner been provided? ❑ Yes (Plan Sheet: & Specification Page: ) or ❑ No 4. In accordance with 15A NCAC 02T .0605 e , are any earthen treatment and storage facilities provided? ❑ Yes or ® No 5. In accordance with 15A NCAC 02T .0605( , have any by-pass or overflow lines been provided? ❑ Yes or ® No 6. If any treatment, storage or irrigation systems are located within the 100-year flood plain, in accordance with 15A NCAC 02T .0605(e?, which systems are affected and what measures being taken to protect them against flooding? N/A 7. In accordance with 15A NCAC 02T .0605(h), has an operation and maintenance plan been submitted? ® Yes or ❑ No 8. In accordance with 15A NCAC 02T .0605(i), how will restricted access to the irrigation system be provided? 2-Strand Fence Are all treatment units and control panels locked to prevent entry? ® Yes or ❑ No 9. In accordance with 15A NCAC 02T .0605.(i), do the designed irrigation loading rates (see Application Item VIIA.) exceed the soil scientist recommended loading rates (see Application Item VII.3.)? ❑ Yes or ® No 10. In accordance with i5A NCAC 02T .0605(k), does the septic tank design adhere to 15A NCAC I9A .1900? ® Yes or ❑ No FORM: SFRWWIS 06-16 Page 3 of V. DESIGN CRITERIA AND SETBACKS — 15A NCAC 02T .0605 & .0606 (CONTINUED): 11. In accordance with 15A NCAC 02T .0605(l), what is the specified method of disinfection? Ultraviolet If chlorine, specify contact detention time provided: _ minutes and where contact time occurs: If UV, specify the number of banks: 1, total lamps: 1 and maximum flow capacity: 10 GPM. 12. In accordance with 15A NCAC 02T .0605(m), has a minimum of five days of storage based on average daily flow between the pump off float and inlet invert pipe been provided? ® Yes or ❑ No 13. In accordance with i 5A NCAC .02T .0605(n 1, have all tanks containing pumps been provided with audible and visual alarms that are external to any structure? ® Yes (Plan Sheet: 4 of 8 & Specification Page: ) or ❑ No 14. In accordance with 15A NCAC 02T .0605(o), has a precipitation or soil moisture sensor been provided? ® Yes (Plan Sheet: 4 of 8 & Specification Page: ) or ❑ No 15. In accordance with 15A NCAC 02T .0605W, has a minimum of 18 inches of vertical separation between the apparent seasonal high water table (SHWT) and the ground surface been provided? ® Yes or ❑ No 16. In accordance with 15A NCAC 02T .0605(a), has a minimum of 12 inches of vertical separation between any perched seasonal high water table (SHWT) and the ground surface been provided? ® Yes or ❑ No 17. In accordance with 15A NCAC 02T .0605 .r , does the designed annual loading rate exceed 50 inches? ❑ Yes or ® No 18. Does the project comply with all setbacks found in the river basin rules (I 5A NCAC 02B .0200)? ® Yes or ❑ No If no, list non -compliant setbacks: 19. Per 15A NCAC .02T .0606, verify setback compliance by providing the minimum field observed distance (ft) from the facility's irrigation system and treatment/storage units to each listed setback parameter (Note: Distances greater than 500 feet shall be marked N/A): Setback Parameter Irrigation System Treatment / Mora e Unit Any habitable residence or place of assembly under separate ownership or not to be maintained as part of the project site +-210 +/- 135 Any habitable residence or place of assembly owned by the Permittee to be maintained as art of the.project site +/- 65 Any private or public water supply source > 400' > 200' Surface waters (streams — intermittent and perennial, perennial waterbodies, and wetlands) N/A N/A Groundwater lowering ditches (where the bottom of the ditch intersects the SHWT) N/A Subsurface groundwater lowering drainage systems N/A Surface water diversions (ephemeral streams, waterways, ditches) +/- 25' Any well with exception of monitoring wells >400' >200' Any property line Waivered Waivered Top of slope of embankments or cuts of two feet or more in vertical height N/A Any water line from a disposal system >40' Any swimming pool N/A Public right of way 20'* Waivered Nitrification field >150' Any building foundation or basement >40' 20. Are any setback waivers proposed for this facility? ® Yes or ❑ No If yes, in accordance with I5A NCAC 02T .0606(c), submit the appropriate setback waivers (FORM: NDWSW) that have been notarized, signed by all parties involved and recorded with the County Register of Deeds. Waivers involving the compliance boundary shall be in accordance with 15A NCAC 02L .0107. FORM: SFRWWIS 06-16 Page 4 of 6 VI. WASTEWATER TREATMENT & STORAGE FACILITY DESIGN: 1. Type of treatment system: Septic Tank / EZ Treat 2. Provide the requested information for each treatment/storage unit and its associated mechanical equipment: a. PRELIMINARY / PRIMARY TREATMENT (i.e., physical removal operations): No. of Manufacturer or Dimensions (ft) / Volume Plan Sheet Specification Treatment Unit Units Material Spacings in al Reference Reference Septic Tank 1 Shoaf Pr3eC0ast STB- 10.5'x5.5'x5.83' 1500 4 of 8 Select Other b. SECONDARY TREATMENT (i.e., physical, biological and recirculation processes): No. of Manufacturer or Volume Plan Sheet Specification Treatment Unit Units Material Dimensions (ft) al Reference Reference EZ Treat 1 EZ Treat 600 +/- 7' x 4.5 NA 4 of 8 Recirculation Tank Shoaf PreCast PT- 12. 5' x6. 5' x5. 5 d' 2500 4 of 8 2103 Avail for Emerg Other 1436 Storage c. DISINFECTION: No. of Manufacturer or Volume Plan Sheet Specification Treatment Unit Units Material Dimensions (ft) al Reference Reference Ultraviolet 1 EZ Treat Model UV-101 10 GPM 4 of 8 Select d. PUMP/STORAGE TANK: Manufacturer or No. of Total Effective Effective Plan Sheet Specification Material Units Dimensions (ft) Volume Volume Storage Reference Reference al (al) (days) Shoaf PreCast 1 13. 2' x6. 3' x7. 0' d 3500 3596 >5 4 of 8 Avail for Emerg Mode1PT-2105 Storage e. PUMPS: Location No. of Pumps Purpose I Manufacturer / Type Capacity Plan Sheet I Reference Specification Reference GPM I TDH 2500 Gal Recirc 1 Dose EZ Treat Pod StatRite Step20 20 100' S of 8 3500 Field Dose Tank 1 Field Dosing Goulds PUTB 1534122 W 17 130 5 of 8 f. BLOWERS: Location No. of Blowers Units Served Manufacturer / Type Capacity (CFM) Plan Sheet Reference Specification Reference g. MIXERS: FORM: SFRWWIS 06-16 Page 5 of 6 Location No. of Mixers Units Served Manufacturer / Type Power h Plan Sheet Reference Specification Reference FORM: SFRWWIS 06-16 Page 6 of 6 VII. IRRIGATION SYSTEM DESIGN: 1. Are there any artificial drainage or water movement structures within 200 feet of the irrigation area? ❑ Yes or ® No If yes, please explain if the Soil Evaluation addresses artificial structures and indicate if these structures are to be maintained or modified: 2. What is the proposed cover crop? Fescue 3. Soil Evaluation recommendations: Soil Series Fields within Soil Area Minimum Observed Depth to SHWT fit Recommended Loading Rate in/hr Recommended Loading Rate in/yr Creedmoor 100 a 0. 5' <0. 5"/Hr <14. 71"/Yr 4. Irrigation System Information (Note — this table may be expanded for additional fields): Field Area (acres) Dominant Soil Series Designed Rate (in/hr) Designed Rate (in/yr) Latitude ' (DMS) Longitude (DMS) Waterbody Stream Index No. Z Classification 1 0.44 Ac Creedmoor 0.15"/hr 14.70"/Yr 35°45' 37" -79°00' 3" N/A N/A o r or o r r, O I II O 1 II O / II O II o r to o r rr Total 0.44 1 Provide the following latitude and longitude coordinate determination information: Datum: NAD83 Level of accuracy: Nearest 10. seconds Method of measurement: MaI2 inte retation by extraction For assistance determining the waterbody stream index number and its associated classification, instructions may be downloaded at: htts:.'•'ncdenr.s3.amazonaws.cUmis3fs- ub€iel ater'fo20 unlit iA uifer"/,,20ProtectioruLAUiAgreements/WSCA%2008-€3. df. Spray Irrigation Design Elements Drip Irrigation Design Elements Nozzle wetted diameter: ft Emitter wetted area: 6.74 ft'- Nozzle wetted area: ft- Distance between laterals: 3.37 ft Nozzle capacity: GPM Distance between emitters: 2 ft Nozzle manufacturer/model: / Emitter capacity: 0.61 GPH Elevation of highest nozzle: ft Emitter manufacturer/model: Netafim / BioRam Specification Reference: Elevation of highest emitter: +/-269 ft 77 Specification Reference: Sheet 3 of 8 FORM: SFRWWIS 06-16 Page 7 of Professional Engineer's Certification: John R. Harman, PE attest that this application for (Professional Engineer's name from Application Item III.1.) Wastewater Treatment & Surface Drip Irrigation Disposal System for a 4 Bedroom Residence-1725 Farrington Rd, ChWhRrIn (Facility name from Application Item II.1. ) has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications, engineering calculations, and all other supporting documentation to the best of my knowledge. I further attest that to the best of my knowledge the proposed design has been prepared in accordance with this application package and its instructions, as well as all applicable regulations and statutes. Although other professionals may have developed certain portions of this submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design. Note: In accordance with General Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation. North Carolina Professional Engineer's seal; signature, and date: ��so �300 Applicant's Certification per 15.A NCAC 02T A RM h : William Foy •pfaara •�(�y'''� SEAL 9810 w R Hk?.t7 attest that this application for (Signature Authority's name & title from Application Item 1.3.) Wastewater Treatment & Surface Drip Irrigation Disposal System for a 4 Bedroom Residence-1725 Farrinaton Rd; Chatham Co., NC (Facility name from Application Item 11.1.) has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater from this non -discharge system to surface waters or the land will result in an immediate enforcemernt action that may include civil penalties, injunctive relief, and/or criminal prosecution. I -,will snake no claim against the Division of Water Resources should a condition of this permit be violated. I also understand that if all required parts of this application package are not completed and that if all required supporting information and attachments are not included, this application package will be returned to me as incomplete. 1 further certify that the applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without proper closure, does not have an outstanding civil penalty where all appeals have, been exhniiated or abandoned, are compliant with any active compliance schedule, and do not have any overdue annual fees per 15A NCAC 02T .0105(e). Note: In accordance with General Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false statement, representation, r t-tifi - do in any ap 4nnon package shall be guilty of a Class 2 mistirnic7io,. wZiiv include a fine not to exceed $10.0 pellaltitl p r$25,000 per violation. Signatur � Date �O FORM: SFRWWIS 06-16 Page 7 of 6 State of North Carolina Department of Environmental Quality DWR Division of Water Resources SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEM Division of Water Resources OPERATION AND MAINTENANCE AGREEMENT FORM: SFRWWIS-O&M 09-18 Permit No. WQ0044550 Counter: Chatham Permittee: R l a c k sm 1 th Ranch, I , I . C - — - - (i.e., all deeded property owners) The Permittee agrees to operate and maintain the single-family residence wastewater treatment and irrigation system as follows - I . Inspect the septic tank annually, and pump out solids as needed. 2. Inspect and clean the septic tank effluent filter annually. (if applicable) 3. Inspect the tablet chlorinator weekly. Add wastewater grade chlorine tablets (e.g., calcium hypochlorite) as needed. Swimming pool grade chlorine tablets are not acceptable. (if applicable) 4. Inspect the ultraviolet disinfection unit weekly. Clean or replace the lamps and quartz sleeves as needed. (if applicable) 5. Inspect all storage t=ks, pumps, and alarms monthly. Remove the floating scum layer in all pump/storage tanks when pumping the septic tank solids out, 6. Inspect the spray irrigation system monthly to verify: proper operation of the spray heads; that there are no leaks; that vegetative growth does not obstruct the spray heads; that the irrigated wastewater is not ponding in or running off the designated irrigation area; and that there are no objectionable odors. (ifapplicable) 7. Inspect the drip irrigation system monthly to verify: proper operation of the drip lines; that there are no leaks; that vegetative growth does not obstruct the drip emitters; that the irrigated wastewater is not ponding in or running off the designated irrigation area; and that there are no objectionable odors. izfapplicable) 8. Maintain a set of Division -approved engineering plans and specifications. 9. Pay the required annual fee. 10. Request renewal of this permit on Division -approved forms no later than 180 days prior to expiration. 11. Sign and provide a Change of Ownership appI icat ion to any future owner of the single-family residence wastewater treatment and irrigation system for their completion and submission to the Division of Water Resources. We. understand Signature: - Signature: Signature: Signature: and agree to these terms as part of the issued permit. - Date: Date: Date: Date: All deeded ro err-► owners shall sign. this Operation and Maintenance Agreement FORM: SFRWWIS-O&M 09-18 Page 1 of i BK 2363 PG 0587 FILED CHATHAM COUNTY NC `--- f — LUNDAYA. RIGGSBEE — REGISTER OF DEEDS FILED May 24, 2023 AT 08:19:51 am BOOK 02363 START PAGE 0587 END PAGE 0588 INSTRUMENT # 04461 EXCISE TAX (None) State of North Carolina Department of Environmental Quality Division of Water Resources NON -DISCHARGE WASTEWATER SYSTEM WAIVER AGREEMENT TO WAIVE SETBACKS AS REQUIRED BY 15A NCAC 02T .0506(a), .0506(b), .0606(a), .0706(a) AND .1006(a) 1 William FoX (printed name), certify that I am a deeded owner or an authorized agent of the property located at: Address: 172Z FarrinatQn Road Parcel No.: 9793-00-6J -5911 8 City: Apex State: NC Zip Code: 27523 County: Chat Furthermore, I certify that 1 am authorized to make decisions regarding this property, and that I do hereby agree that the setback distances cited below be granted to the Applicant/Permittee listed on the following page. 1 understand the setback requirements set forth in 15A NCAC 02T. For the parcel identified above, I consent to the following reduced setbacks: ® Wastewater Irrigation/Infiltration Setback to Propem Lines The required setback of 50 feet is reduced to 20 feet, thereby allowing wastewater effluent irrigation or infiltration no closer than 20 feet from my property line. ❑ Wastel+arer Irritation/Infiltration Setback w Places of Assembly The required setback of _ feet is reduced to _ feet, thereby allowing wastewater effluent irrigation or infiltration no closer than - feet from my residence(s) or place(s) of assembly. ® 1't'astewater Treatment and Storage Unit Setback to P rap erty Lines The required setback of 50 feet is reduced to 25 feet, thereby allowing the construction of wastewater treatment and storage units no closer than 25 feet from my property line. ❑ Wastewater Treatment and Storage Unit Setback to Places of .ASsembh The required setback of _ feet is reduced to _ feet, thereby allowing the construction of wastewater treatment and storage units no closer than feet from my residence or place of assemblyf r f Signature. Date: / FORM: NDWSW 02-19 Page I oft ��ftlrn {'o -J-4H i1.A141ZA4A l 7//:Z1W �C-o,4,� j�,� �,��e/c.sl��JG 274oa BK 2363 PG 0588 Applicant/Permittee: Blacksmith Ranch, LLC Permit No.: Not Yet Assigned Address: 1725 Farrington Road Parcel No.: 9793-00-61.0000 City: Apex C-1 o►-acic State: NC Zip Code: 27523 County: Chatham _ 1-P COUNTY CoioY ada I, r i n V a Notary Public for -T Ck:O County, i a do hereby certify that lk 'Di IY7 S jA2.1 'r Lf personally appeared before me this day and acknowledged the due execution of the foregoing instrument. Witness my hand and official seal, this the 2 day of SEAL I[ARINA M ESCARCEGA I Notary nature o NWARY PUBUC Signature Public STATE OF COLORAW ^1�,-7�/� Wes'IO��'� My commission expires Oy . 7Z li-bw MY COMMISSION WIRES NOVEMBER 28.2428 Once notarized, this form shall be recorded at the Register of Deeds in the county or counties in which the described properties are located. A copy of the recorded waiver shall be sent to the following address: Division of Water Resources Non -Discharge Branch 1617 Mail Service Center Raleigh, North Carolina 27699-1617 FORM: NDWSW 03-17 Page 2 of 2 BK 2333 PG 0649 FILED CHATHAM COUNTY NC LUNDAY A. RIGGSBEE REGISTER OF DEEDS FILED Nov 03, 2022 AT 02:47:03 pm BOOK 02333 START PAGE 0649 END PAGE 0650 INSTRUMENT # 12542 EXCISE TAX (None) State of North Carolina Department of Environmental Quality Division of Water Resources NON -DISCHARGE WASTEWATER SYSTEM WAIVER AGREEMENT TO WAIVE SETBACKS AS REQUIRED BY 15A NCAC 02T .0506(a), .0506(b), .0606(a), .0706(a) AND .1006(a) 1, Richard M. Abdella (printed name); certify that I am a deeded owner or an authorized agent of the property located at: Address: 17$5 FarringtsRnad {NC SR 1008)_ Parcel No.: l 7b87 (Chatham Counriy) City: Apex State: NC ZiCode: 27523 County: Chatham Furthermore. I certify that I am authorized to make decisions regarding this property, and that I do hereby agree that the setback distances cited below be granted to the Applicant/Permittee listed on the following page. I understand the setback requirements set forth in 15A NCAC 02T. For the parcel identified above, I consent to the following reduced setbacks: Wastewater Irrigationllnfiltration Setback to Property Lines The required setback of 50 feet is reduced to_10 feet, thereby allowing wastewater effluent irrigation or infiltration no closer than 10 feet from my property line. ❑ Wastewater Irrigation/Infiltration Setback to Places of Assembly The required setback of feet is reduced to feet, thereby alloying wastewater effluent irrigation or infiltration no closer than feet from my residence(s) or place(s) of assembly. ❑ Wastewater Treatment and Stara a Unit Setback to P roperty Lines The required setback of feet is reduced to feet, thereby allowing the construction of wastewater treatment and storage units no closer than feet from my property line. ❑ Wastewater Treatment and Storage Unit Setback to Places of AssembIv The required setback of _ feet is reduced to feet, thereby allowing the construction of wastewater treatment and storage units no closer than feet from my residence or place of assembly. 1 Signature: Date: -Z 31 2-.e-) 2Z FORM: NDWSW 02-19 Page I oft BK 2333 PG 0650 Applicant/Perminee: WilliartLEov dba Slacksmith,R_ an�h_LL_C_ Permit No.: iiQt 1(et Assigned Address: 1727 Farrington Road 11. 2� Parcel No.: 646 City: Apex —State: NC— Zip Code: 27523 County: Chatham NORTH CAROLINA, COUNTY 1, DC-N+JC 5/15 4E[LG kL-P n1 , a Notary Public for cka`i _ ,,,.. County, North Carolina, do hereby certify that t � ,� Alj (6, personally appeared before me this day and acknowledged the due execution of the foregoing instrument. Witness my hand and official seal, this the �I, 3_ day of / �u St , Zo2Z SEAL ' -D' NME GABRM, J. KERN NOTARY PUBIX Cba� County Signature of Nolaq Public Mp commission expires 1_ c V Zo 2 o 2-1- Once notarized. this Form shall be recorded at the Register of Deeds in the county or counties in which the described properties are located. A copy of the recorded Waiver shall be sent to the following address: Division of Water Resources Non -Discharge Branch 1617 Mail Service Center Raleigh, North Carolina 27699-1617 FORM: NDWSW 03-17 Page 2 of Environmental Consultants, 8412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: (919) 846-5900 sandec.eom November 3, 2023 Job # 13609.S2 Zachary J. Mega Water Quality Regional Operations Section Division of Water Resources Department of Environmental Quality Re: Additional Information Request for 1725 Farrington Road SFR Application No. WQ0044549 Dear Mr. Mega: The purpose of this letter is to respond to the Additional Information Request requested by your office on September 20, 2023. Item F. Soil Evaluation: 1. Updated attached Report includes statement that the project site has not changed since the original evaluation. 2. Updated Appendix 5 Geometric Summary Data included in Report 3. a. Updated Ksat measurement data sheets. b. The measured in -situ Ksat values for this lot fall into the SFR-D group (an allowable irrigation range of 0-13.0 inches per year). Three Ksat data nests were used to determine the recommended Ksat value. The geometric mean Ksat value used by S&EC is 0.008 in/hr (C horizon). These measured Ksat values, along with the proposed TS-II Pretreatment Surface Drip field landscape position, and 6 inch sandy loam cap across the drip field, justify a drainage coefficient of 41 % of the measured Ksat in the most restrictive soil horizon, resulting in an annual loading rate of 14.71 inches per year. [Ref. "EPA Process Design Manual -Land Treatment of Municipal Wastewater Effluents, 1984, revised 2006"] The Drainage Coefficient of 0.04 to 0.1, or 4% to 10% of the Ksat is historical relic of the early days of EPA (1984). This was the norm when the permeability of soils were obtained from tabular data in USDA and NCRS Soil Survey information. However, as carried over to the EPA Process Manual revised in 2006 which states "To account for required intermittent applications (reaeration), the variability of the actual soil permeability within a site, and the potential reduction with time, a small percentage of the vertical permeability is used as the design percolation rate. This small percentage ranges from 4 to 10 percent of the saturated vertical permeability as shown in Figure 3-5." And Roes on to state, "Design rates based on field measurements (Section 3.8] may be calculated rasing different percentages. " The guidance would seem to indicate that that due to the expense of conducting multiple Ksat measurement locations and when a singular measurement is obtained, or in the case of using Soil Survey broad scale "book values" measurements as typical should have its assumed or measured Ksat significantly reduced due to the possible variations of soil types and characteristics within their extent of the site. However, it also indicates that based upon multiple "nested" measurements where a geometric mean is used that the design rates maybe calcuiated using different Drainage Coefficient percentages. It has been recognized that the minimum requirements of Organic Loading for surface irrigation systems is the achievement of Secondary level of treatment with disinfection (BOD<30 mg/I; TSS<30mg/1) and this may be compatible with the 4% to 10% limitation of the Ksats to be used. However, since modern day treatment levels are expected to be <10mg/I for each using media filters with denitrification processes the concerns of pore clogging and algae build up are greatly diminished. It is not thought unreasonable that since the organic constituents are reduced by two thirds from the previously applied standard levels of effluent, a three fold multiplier of the 10% Drainage Coefficient (DC) can be properly applied to the Geometric Mean of the Ksats measurement value. Therefore, a Minimum DC of 0.33, or 33% can be the beginning point far evaluating the Drainage Coefficient for the various Soil Group determination b the Ksat Geometric Mean. The NCDENR DWQ SFR Annual Hydraulic Loading Worksheet version 091208 states in its Instructions "Values for this drainage coefficient shall not exceed 1.0 (100%). Obviously, there would be no point in irrigating a soil that is saturated at 100% which would keep it in a perpetually saturated condition. In the "Irrigation Area Calculation" tab of the DWR worksheet, the guidance of a range for the "Maximum Annual Loading Rate" is given by the Geometric Mean of the Ksat Range (which is the determinate of the SFR Loading Rate Group), and the Loading Rate Group specifies a Low to High range of the inches/Year Application Rate for the SFR Soil Group. As long as the Annual Loading Rate is not exceeded, or at a maximum is met relative to its corresponding and comparative Geometric Mean within the Ksat Range, a designer -chosen numeric variable of the Drainage Page 2 of 3 Coefficient can be applied as a entry, and the intent of the design approach is achieved. A suggested upper limit of the Drainage Coefficient of 0.5 (or 50%) can be justified to provide a Factor of Safety of 2, which is usually accepted by design professionals as satisfactory. c. Attached Report removes adjacent lot information. Soil & Environmental Consultants, PA is pleased to be of service in this matter and we look forward to assisting in the successful completion of the project. Please feel free to call with any questions or comments. Sincerely, Soil & Environmental Consultants, PA Ricky NC Licensed 5oi1 scientist #12-12 Page 3 of 3 Environmental Consultants, 8412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: (919) 846-5900 sandec.com Revised October 4, 2023 Beaux Foy December 16, 2022 1719 Farrington Road S&EC Project #13609.S2 Apex, NC 27523 Soils Report for a Proposed Residential TS-II Surface Drip with Fill Wastewater System Project Name: 1725 Farrington Road, Lot 3 Location: 1725 Farrington Road, Chatham County, NC Soil & Environmental Consultants, PA performed a detailed soil/site evaluation on the above referenced tract to determine onsite suitability for a subsurface or surface wastewater system per your request. This property does not contain enough suitable soils to support a 4-bedroom subsurface septic system. Therefore, a TS-II pretreatment surface drip septic system with a minimum of 6 inches of NCDWR approved fill is proposed. Soil & Environmental Consultants, PA (S&EC) has determined the location and characteristics of a site that is potentially useable for a pretreatment surface drip irrigation wastewater system with approved fill. This report details S&EC findings and provides the necessary soil/site information needed for a drip irrigation system to be designed by a professional engineer. This fieldwork was completed in Fall and Winter of 2018, with a follow up site meeting and field review in November 2022. Site conditions were the same at the November 2022 site meeting as they were when the site was originally evaluated in 2018. The potentially useable soil area is shown on the accompanying AutoCAD map (Appendix 2). The map also shows the locations where measurements of saturated hydraulic conductivity (Ksat) and the deep soil borings were performed. The general area proposed for the system is 23,995 square feet. This plan assumes that buffer wavier reductions are obtained for some of the property line and/or residence/building setbacks. The proposed pretreatment surface drip with fill meets all the remaining setbacks required for surface drip systems by the state of North Carolina. This site is located in the Triassic Basin geologic unit of Chatham County. Appendix 1 contains the locations and limited field data of auger borings that were performed to determine soil map units that were present on the site. Upland soils on the site are generally similar to the Creedmoor soil series. These soils have expansive clay mineralogy and indications of soil wetness present in the wavy boundaries of the subsurface horizons. The Bt subsoil of these soils are clayey and have a yellowish brown color. There are wavy boundaries between the Bt, BC, and C horizons on this site. The Creedmoor soils are generally unsuitable for subsurface septic systems. However, the soil characteristics of the surface horizons with the addition of approved fill offer the opportunity for a pretreatment surface drip septic system. In essence, the permeability of the subsoil is the limiting factor in the design of a pretreatment surface drip system. The soil condition of the proposed drip area is also described in the accompanying Ksat location soil profile descriptions (Appendix 3). The upper boundaries of the perched water table varied across the site. The landscape position for the proposed pretreatment surface drip system with fill is on top of a ridge. Based on the Ksat measurements, the attached water balance (Appendix 4) shows that the site can hydraulically assimilate 14.71 inches of irrigation water per year. Therefore, a 4-bedroom house (480 gallons per day design flow) would require approximately 19,109 square feet of wetted area for surface drip irrigation application. The maximum instantaneous application rate should not exceed 0.5 inches per hour. Measurements of saturated hydraulic conductivity (Ksat) were conducted within the most restrictive soil horizon in the proposed wetted area, which was the C soil horizon. Overall geometric mean Ksat data is shown in Appendix 5a while Ksat field data is shown in Appendix 5b of this report. In regard to the NCDWR approved fill, a minimum of 6 inches of fill is required to be placed on top of the existing soil surface so the vertical separation to the perched SHWT is met. The fill material must have a soil texture of sandy loam in order to establish vegetative cover and must contain no more than 10% by volume fibrous organics, or other debris. The fill material and the existing soil shall be mixed to a depth of six inches below their interface. All heavy vegetative cover and organic litter will be removed from the existing soil surface before fill material is added. The side slope of the fill shall not exceed a rise to run ratio of 1:4. The fill berm will be constructed so it sheds surface water and will be stabilized with a vegetative cover. Soils within the proposed drip area were also analyzed for current fertility conditions. Because of similar landscape type and management conditions, one composite sample was used to infer soil fertility status within the proposed drip area. The composite sample for this surface drip area is labeled "SS-L1". The standard soil fertility analysis was completed by Waypoint Analytical, Inc on February 20, 2019. Soil sample results and fertility recommendations are included in "Soil Analysis Report" provided by A&L (Appendix 6). Site disturbance should be absolutely minimized on the area to be used for the drip application of wastewater. Site disturbance could create unsuitable conditions for a drip irrigation system. A permanent vegetative cover should be immediately established and maintained over the entire application field after installation. Calculations 1. Maximum Instantaneous Application Rate (in/hr) Utilizing Table 1 (see attached) for typical ranges of soil infiltration rates. The Creedmoor soils fall into the Sandy Loam class in the 0-3% slope range. This infiltration rate is 0.5 to 1.0 in/hr. The recommended rate is therefore 0.5 in/hr. Water Balance A water balance was developed for the proposed drip irrigation field by balancing water losses and gains: Evapotranspiration + Drainage = Precipitation + Irrigation A. Potential Evapotranspiration (PET) PET was calculated using the Thornwaite Method as outlined in the water balance spreadsheet provided by NC DWR. B. Drainage (DR) The drainage term was determined utilizing guidance set forth by a committee within DWR (The Single Family Residence Workgroup). Based on discussions within this committee, 4 classes of soils are proposed based on in -situ Ksat values. The measured values for this lot fall into the SFR-C group (an allowable irrigation range of 13.0-19.5 inches per year). A drainage coefficient of 41 % of the measured Ksat in the most restrictive soil horizon was therefore utilized to yield an annual loading rate of 14.71 inches per year. Three Ksat data nests were used to determine the recommended Ksat value. Each of these data points were performed within the BC horizons of the Creedmoor soils, since these were clearly the most restrictive horizons. The geometric mean Ksat value used by S&EC is 0.008 in/hr (C horizon in the Creedmoor). C. Precipitation (PPT) Average monthly precipitation rates were obtained from the NC Climate Division 4: Central Piedmont Area, determined over a thirty year period (see water balance data sheet). Monthly precipitation values from the 80th percentile were used in the water balance. Input for this figure is based on 31, 30, and 28 day months. Specifications: Assumed Design flow - 480 gal/day Allowable Irrigation Rate — 0.28 in/week Total minimum area needed for spray field — 19,109 sf (wetted area) Maximum Instantaneous Application Rate- 0.5 in/hr The area required is the minimum wetted area needed for treated wastewater application. This report discusses the general location of potentially useable soils for on -site surface wastewater disposal and, of course, does not constitute or imply any approval or permit as needed by the client from the State. S&EC is a professional consulting firm that specializes in the delineation of soil areas for wastewater disposal. As a professional consulting firm, S&EC is hired for its professional opinion in these matters. The rules governing wastewater treatment (interpreted and governed by local and state agencies) are evolving constantly, and in many cases, affected by the opinions of individuals employed by these governing agencies. Because of this, S&EC cannot guarantee that areas delineated and/or systems designed will be permitted by the governing agencies. As always, S&EC recommends that anyone making financial commitments on a tract be fully aware of individual permit requirements on that tract prior to final action. An individual septic system permit will be required prior to obtaining a building permit. This will involve a detailed evaluation by the State to determine, among other things, system size and layout, drive/parking and building location. Only after developing this information can a final determination be made concerning specifics of system design and site utilization. A letter of denial regarding subsurface septic systems from the county health department will also be required by the state as part of the application for a surface drip system for each septic area. If you have any questions or require additional information please contact us at (919) 846-5900. Sincerely. t; S"VA II� j SC 4.NdAA!jrIIli ;-V 141rw7 F. 1232 Ricky Pontello NC Licensed Soil Scientist List of Appendices Appendix 1. — NC setbacks for surface drip and spray irrigation septic systems Appendix 2. — AutoCAD Soils/site plan Appendix 3. — Soil Profile Descriptions at Ksat Locations Appendix 4. — Water Budget Calculations Appendix 5. — Overall Geometric Mean Ksat Data Appendix 6. — Standard Fertility Analysis (As provided by Waypoint Analytical, Inc.) SETBACKS FOR SURFACE DRIP AND SPRAY IRRIGATION DRIP SPRAY PARAMETER 10, 100, INTERCEPTOR DRAINS, AND SURFACE WATER DIVERSIONS (UPSLOPE FROM SYSTEM). 15' 200' RESIDENCE FOUNDATION/BASEMENT 15' 15' 2' CUT EMBANKMENT. 25' 100, INTERCEPTOR DRAINS, SURFACE WATER DIVERSIONS, AND GROUND WATER LOWERING/SURFACE DRAINAGE DITCHES (DOWNSLOPE FROM SYSTEM). 50' 50' PUBLIC RIGHT-OF-WAY SURFACE DISPOSAL 50' 150' ANY PROPERTY LINE 100, 400' PLACE OF PUBLIC ASSEMBLY OR HABITABLE RESIDNECE OFF PROPERTY. 100, 100, ANY SWIMMING POOL, ANY WELL, ANY PUBLIC OR PRIVATE WATER SUPPLY, AND ANY LAKE OR IMPOUNDMENT. • ANY OR ALL OF THESE SETBACKS MAY BE VARIED IF THE ADJACENT PROPERTY OWNERS SIGN A WAIVER/PERMISSION NOTICE. Table 1 Tnical ranges of soil infiltration_ rates by soil texture and slope. Texture sands loamy sands sandy loams and fine sandy loams very fine sandy loam and silt loam sandy clay loam and silty clay loam clay and silty clay Basic Infiltration Rate (in/hr)* Slope 0-3% 3-9% 1.0+ 0.7+ 0.5+ 9+% 0.7-1.5 0.5-1.0 0.4-0.7 0.5-1.0 0.4-0.7 0.3-0.5 0.3-0.7 0.2-0.5 0.15-0.3 0.2-0.4 0.15-0.25 0.1-0.15 0.1-0.2 0.1-0.15 < 0.1 Source: Sprinkler Irrigation Association, S er Irri ation (1969) * For good vegetative cover, these rates may be 25-50% greater. For poor surface conditions, rates may be as much as 50% less. LEGEND Pretreatment surface drip septic areas that contain soils with 12 inches or less of useable material. These areas will require a NCDWR approved soil cap based on depth to unsuitable soil characteristics, There could be additional areas outside of the areas shown. 1O' SEPTIC SYSTEM SETBACK7 r.bv This map is showing a buffer wavier reduction for the interior property boundaries and the reduced setback from the property lines. This is [ SITE I T,1 S6VVT&EXP assuming the buffer waivers can be obtained and the setbacks from the TSFIYtrT A£%P� I w property lines can be reduced to 10 feet. I I o B>wr csHWr.aT i� =� 51TE3 � � � P: i SITE Site location for soil hydraulic conductivity ..gg 8 I I I �� A'9NW1'6 ti]tP !I w • testing (Ksats) and deep soil borings (profile descriptions for each site are included in the ^� .4fiE 1 report). These sites are flagged with Pink 6'SI-NM14re 5&EC logo Flagging and are labeled in the it rry= 9'SHWT AEXP field, I tI.- vi 6" EXP Soil boring location that has the potential o 1 �r ^��i, • suitability for NCDWR surface septic systems with approved fill based on soil depth to PP P 1 : LOT 3 PROPOSED unsuitable sail characteristics. This boring 9•sHwTN a — T does not account for the surface septic R00 ' �' SEPTIC AREA system setbacks. (Example: 6" from soil Welli k F surface to expansive clay mineralogy) 23,955 SQ. FT. k5-. New Ti- L 1.541 ALrFs 7'DTaI IEXP GRAPHIC SCALE V=70' 1725 FARRINGTON ROAD 70 0 70 140 i NOTE- SOIL SERIES ON THIS SFI'E INCLUDE GREEDMOOR, WHITESTORE, AND GREEN LEVEL THE DEPTH TO SEASONAL HIGH WATER TABLE AND EXPANSIVE CLAY MINERALOGY VARIES ACROSS THE SITE SOIL PROFILE DESCRIPTIONS POR THE KSAT SITES ARE IN EACH OF THE REPORTS. �'. ADDITIONAL SOIL BORiN4S ARE NOTED ON THE MAP AS WELL AS THE .I DEPTH TO THE SHALLOWEST UNSUITABLE SOIL CHARACTERISTIC (SHWT [SEASONAL HIGH WATER TABLE]. EXP [EXPANSIVE. CLAY MINERALCIG'6, PM LUNSUITABLE SAPROLITE]. & SAP [UNSUITABLE SAPROLITE]). 1`I DRIPIRR1�7/QN 5QIL/��AL��DN�SA�� DRIP IRRIGATION AREAS WERE FLAGGED. THE PRELIMINARY HOUSE AND WELL LOCATIONS WERE SKETCHED ONTO THE MAP BASED ON TOPOGRAPHY. CLIENT INPUT, AND OTHER SITE FEATURES. NOT A SURVEY- 2—FO.OT CONTOURS FROM CHATHAM COUNTY GIS. PARCEL BOUNDARIES FROM CHATHAM COUNTY GIS. "THIS MAP AND CORRESPONDING SITE EVALUATION IS NOT GONFORMANT TO THE ENGINEERED OPTION PERMIT (EOP) PROCESS. ADDITIONAL SITE TESTING AND EVALUATIONS MAY BE REOUIREO TO UTILIZE THE EOP PROCESS. THIS MAP AND ASSOCIATED REPORT ARE FOR THE EXCLUSIVE USE OF THE ADDRESSEE AND THE USE OR RELIANCE BY ALL OTHERS IS EXPRESSLY DENIED WITHOUT THE WRITTEN CONSENT 1W S&EC. "SUfTAHLE FOR PRE MINARr PLANNING PURPOSES ONLY. SITE WILL REOULRE APPROVAL BY THE COUNTY HEALTH DTPAATMENT.AND/OR NCDWR ON A CASE BY CASE BiA515. THIS l,"P SHOULD BE USED AS A.GENERAL DVOE- SOME ADJUSTMENTS WILL B£ NECESSARY IN THE F1EI.D oUE TO SOIL VARIARILITY ANO TOPDGRAPHIO IRREGULARITIES. THIS MAP ONLY REFLECTS EXISTING SOIL SUITABILITY FOR ON—SfTE SEPir 5U95URFA-CE AND/OR SURFACE SYSTEMS, 5OlAE OTHER coN51DERAT1oN5 TENT AFFECT sn SU eiuTY THAT SHOULD BE CONSIDERED IN DEVELOPMENT OESIGN ARE 1) 100' SETBACK FROM ANY WELL SWIMMING POOL. LAKE, AND PUBLIC OR PRIVATE WATER SUPPLY 0 15' SE7BACdI FROM ANY 2' CUT EMBANKMENT 3) 50' FROM PROPERTY LINE FOR SURFACE DRIP SEPDC SYSTEMS UNLESS BUFFER WAIVERS ARE OBTAINED! SEE ACCOMPANYING SURFACE 5EPDC SETBACKS AND S♦p.EC REPORT i Farrington Road Profile Descriptions at Ksat Locations Site: Lot 3 Location: Site 1 County: Chatham County Current Vegetation: Grass w `o c o a Taxanomic Classification (Family Level): Fine, mixed, semiactive, thermic Aquic Hapludults Series Name: Creedmoor Landscape Position: Sideslope % Slope: 0-3% Conducted By: CC Date: 10/19/2018 W W v a n g I- J 1 in m m o Ap 0-3 10 YR 4/2 - - - - moist SL Wk. Med. SBK FR NS NP E 3-9 10 YR 5/3 - - - moist SL Wk. Med. SBK FR NS NP Bt1 9-26 5YR4/4 5 YR 612.2.5 YR 416.7.5 YR 5/6 Abundant Med. D,C moist C Mod. Med. SBK FI VS VP Bt2 26-37 5 YR 4/4 5 YR 6/2, 2.5 YR 4/6, 7.5 YR 516, 10 YR 211 Abundant Med. D,C moist C Mod. Med. SBK FI VS VP BC 37-60 5 YR 4/4. 5 YR 5/3 5 YR 6/2. 2.5 YR 416. 7.5 YR 516. 10 YR 2J1 Common Small D,C moist CL/SiCL Mod. Med. SBK FI S P C 60-87 5 YR 4/4 5 YR 7/2.2 5 YR 3/4, 7.5 YR 5/6 Common Med. D,C moist L Sls. - Mass FR NS NP Restrictive Horizon: Type Depth Thickness Exp 1 V SHWT 9" Seasonal High Water Table: Depth Type (apparentiperched): 9"perched Drainage Class: SPD Farrington Road Profile Descriptions at Ksat Locations Site: Lot 3 Location: Site 2 County: Chatham County Current Vegetation: Grass N p O N r Y i o Taxanomic Classification (Family Level): Fine, mixed, semiactive, thermic Aquic Hapludults Series Name: Creedmoor Landscape Position: Sideslope % Slope: 0-3% Conducted By: CC Date: 10/19/2018 w W v O C W m O 7 a C d = N � at as m Q O fl y y p21 2 w in 2 v}I CL Ap 1 0-2 10 YR 4/2 - - - - dry SL Wk. Med. SBK FR NS NP E 2-6 10 YR 5/3 - - - - dry SL Wk. Med. SBK FR NS NP Bt1 6-21 10 YR 5/6 7.5 YR 5/4. 10 YR 6/2 Common Med. D.0 dry C Str. Med. SBK VFI VS VP Bt 21-30 10 YR 7/2 10 YR 6/4, 7.5 YR 5/4 Common Med. D,C dry C Str, Med. SBK VFI VS VP BC 30-46 5 YR 4/3, 7.5 YR 7/2 7.5 YR 6/8, 7 5 YR 6/2 Common Med. D,C dry CL/L Wk. Med. SBK FI S P C 46-65 5 YR 4/3. 7.5 YR 7/2 7.5 YR 6/8, 7 5 YR 6/2 1 Commonj Med. 1 D,C dry I USiL Sls. - Mass FR SS NP Cg 65-71 10 YR 6/2 7.5 YR 5/6 Common Med. D,C dry C Sls. - Mass VFI VS VP C 71-84 5 YR 4/4 5 YR 6/2 Common Med. b,C dry SiL SIs. - Mass VFR NS NP Restrictive Horizon: Type Depth Thickness Exp 6" SHWT 6" Seasonal High Water Table: Depth Type (apparentlperched): 6" perched Drainage Class: SP❑ Farrington Road Profile Descriptions at Ksat Locations Site: Lot 3 Location: Site 3 County: Chatham County Current Vegetation: Grass N G F n U o U N LK Y Taxanomic Classification (Family Level): Fine, mixed, semiactive, thermic Aquic Hapludults Series Name: Creedmoor Landscape Position: Sideslope % Slope: 0-3% Conducted By: CC Date: 10/19/2018 t=d C a W N a v rs pl G C N_ X C Q=21N � N {7 L 3 V N w y V F V y N C G v N Ap 0-2 10 YR 4/2 - - - Moist SL Wk. Med. SBK FR NS NP E 2-8 10 YR 5/3 - - Moist SL Wk. Med. SBK FR SS NP Bt1 8-27 10 YR 5/6 7.5YR5/4, 10YR6/2 Common Med. D,C Moist C Str. Med. SBK VFI VS VP Btg 27-34 10YR7/2 10 YR 6/4, 7.5 YR 5/4 Common Med. D,C Moist C Str, Med. SBK VFI VS VP BC 34-40 5 YR 4/3, 7.5 YR 7/2 7 5 YR 6/6, 7 5 YR 6/2 Common Med. D,C Moist CL/L Wk. Med. SBK FR S SP Cr 40+ Restrictive Horizon: Type Depth Thickness Exp 8" SHWT 8" Seasonal High Water Table: Depth Type (apparenVperched): 81,perched Drainage Class: SPD SFR Loading Rate Worksheet (15A NCAC 02T .0600 ONLY) Project Name: 1725 Farrington Rd Property, Lot 3 - Appendix 4 Facility Address: 1725 Farrington Road, Lot 3 35.760641,-79.009349 County: Chatham Prepared by: Soil & Environmental Consultants, PA Project Design Flow = 480 gal/day # of Bedrooms Required Flow 2 bedrooms 240 gal/day 3 bedrooms 360 gal/day 4 bedrooms 460 gal/day 5 bedrooms 600 gal/day 6 bedrooms 720 gal/day SFR-LRW 9-08 Potential Evapotranspiration Worksheet (Thornthwaite method) Project Name: 1725 Farrington Rd Property, Lot 3 - Appendix 4 Location of Temperature Data: NC Climate Division 4; Central Pil Starting Year of Data Record: 1989 Ending Year of Data Record: 2018 Period of Record (years): 30 Source of Data: https://www.cisa.sc.edu/atlas/regions-nc-4.html Site Latitude (degrees) 36.76 within range Calculated PET: 32.38 inches Mean Monthly Temperature (degrees F) Daylight Hours 112 Heat Index Calculated PET (inches) January 39.2 0.87 0.71 0.22 February 43.4 0.85 1.42 0.45 March 50.3 1.03 2.93 1.18 April 59.1 1.09 5.30 2.34 May 64.6 1.21 7.01 3.50 June 74.9 1.22 10.63 5.44 July 78.3 1.23 11.95 6.25 August 76.9 1.16 11.38 5.59 September 70.6 1.03 9.08 3.90 October 59.8 0.97 5.51 2.16 November 49.7 0.86 2.78 0.93 December 42.6 0.85 1.29 0.41 Total =1 70.00 32.38 SFR-LRW 9-08 SFR Precipitation Worksheet Project Name: 1725 Farrington Rd Property, Lot 3 - Appendix 4 Location of Precipitation Data: NC Climate Division 4; Central Piedmoi Starting Year of Data Record: 1989 Ending Year of Data Record: 2018 Period of Record (years): 30 Source of Data: https://www.cisa.sc.edu/atlas/regions-nc-4.html 80th Percentile Annual Precipitation: 50.58 January February March April May June July August September October November December Total = SFR-LRW 9-08 Mean Monthly Precipitation % of Mean Annual Precipitation 80th Percentile Monthly Precipitation 3.54 7.69 3.89 3.01 6.55 3.31 4.17 9.06 4.58 3.63 7.90 3.99 3.81 8.28 4.19 4.23 9.19 4.65 4.57 9.93 5.02 4.24 9.22 4.67 4.45 9.67 4.89 3.57 7.76 3.92 3.24 7.05 3.56 3.55 7.71 3.90 46.02 100.00 50.58 Project Name: 1725 Farrington Rd Property, Lot 3 - Appendix 4 Annual Hydraulic Design Flow = 480 gal/day Loading Rate = 14.71 inch/yr SFR Loading Rate Group: SFR-C Limiting Soil Ksat = 0.008 inch/hour Irrigation Area = 19,109 square ft Drainage Coefficient = 0.410 = 0.43869 acres Drainage Rate = 0.07872 inch/day (Formula: KSBt ' Drainage Coefficient' 24) Number of Days in the Month PET (in/mo) Vertical Drainage in/mo) 80th Percentile Monthly Precipitation in/mo Maximum Allowable Irrigation in/mo Maximum Allowable Irrigation allons/da) Maximum Allowable Irrigation allons/month) January 31 0.22 2.44 3.89 0.00 0 0 February 28 0.45 2.20 3.31 0.00 0 0 March 31 1.18 2.44 4.58 0.00 0 0 April 30 2.34 2.36 3.99 0.71 281 8,417 May 31 3.50 2.44 4.19 1.75 674 20.892 June 30 5.44 2.36 4.65 3.16 1,253 37,599 July 31 6.25 2.44 5.02 3.67 1.411 43,751 August 31 5.59 2.44 4.67 3.37 1,294 40,129 September 30 3.90 2.36 4.89 1.37 543 16,303 October 31 2.16 2.44 3.92 0.68 262 8,109 November 30 0.93 2.36 3.56 0.00 0 1 0 December 31 0.41 1 2.44 3.90 0.00 0 0 TOTAL= 365 32.38 28.73 bu.ba 114.i1 ana.oc �ro,wv Formulas: (Max. Allowable Irrigation) = (PET) + (Drainage) - (Precipitation) SFR Loading Rate Table SFR Maximum Annual Geometric Mean Loading Loading Rate Kasr Range Rate (in/yr) (in/hr) Group Low - High Low - High SFR-A 26.0 - 50.0 >0.05 SFR-B 19.5 - 26.0 0.015 - 0.05 SFR-C 13.0 -19.5 0.003 - 0.015 SFR-D 0.0 -13.0 0.0 - 0.003 Assignment to a SFR Loading Rate Group for each 15A NCAC 02T .0600 permit application shall be determined by the geometric mean of insitu saturated hydrualic conductivity data collected in the most restrictive horizon for each soil mapping unit within the irrigation area. SFR-LRW 9-08 Required Flow 2 bedrooms 240 gal/day 87,600 gal/yr 3 bedrooms 360 gal/day 131,400 gal/yr 4 bedrooms 480 gal/day 175,200 gal/yr 5 bedrooms 600 gal/day 219,000 gal/yr 6 bedrooms 720 gal/day 262,800 gal/yr Maximum allowable irrigation: 175,200 gaVyr The Maximum Allowable Irrigation number must be greater than or equal to the required flow. This chart provides a rough estimate of the SFR Loading Rate Group for soils that formed Triassic Basin Soils I in residuum weathered from bedrock of Triassic Basin origin. This table should not be used to determine the SFR Loading Rate Group. Actual assignment to a SFR Loading Rate Group for each 15A NCAC 02T .0600 permit application shall be determined by the geometric mean of in -situ saturated hydraulic conductivity data collected in the most • NOT USE THIS CHART TO ASSIGN SFR LOADING' • restrictive horizon for each soil mapping unit. Particle -size Drainage Class / -SFR Control Water Table Depth to Shrink - Group Name Section Depth / Type Rock Subsoil Hue swell Classification A Granville fine -loamy W1>60" >60" 7.5YR-2.5Y Low Fine -loamy, siliceous, semiactive, thermic Typic Hapludults A(B) Exway fine W/>60" 20-40" Cr 10R-2.5YR Moderate Fine, mixed, semiactive, thermic Typic Rhodudults A(B) Mayodan fine W/>60" >60" 2.5YR-7.5YR Moderate Fine, mixed, semiactive, thermic Typic Hapludults A(B) Pinoka fine -loamy W/>6' 20-40" Cr 2.5YR-10YR Low Fine -loamy, mixed, subactive, thermic Typic Hapludults A(B) Wadesboro fine W/>60" 40-60" Cr 10R-2.5YR Moderate Fine, mixed, semiactive, thermic Typic Rhodudults B Peakin fine W/3.0-6.0' P >60" 10R-7.5YR Moderate Fine, mixed, semiactive, thermic Typic Hapludults B(C) Claycreek fine -silty MW/1.5-3.0' P >60" 7.5YR-2.5Y Low Fine -silty, siliceous, semiactive, thermic Oxyaquic Hapludalfs B(C) Hallison fine -silty W-MW/2.5-4.0' P 40-60" Cr 5YR-10YR Low Fine -silty, mixed, semiactive, thermic Typic Hapludults B(C) Mooshaunee fine -silty MW/1.5-3.0' P 20-40" Cr 5YR-10YR Low Fine -silty, mixed, semiactive, thermic Aquic Hapludults C Brickhaven fine MW/1.5-3.0' P 40-60" Cr 2.5YR-10YR Moderate Fine, mixed, semiactive, thermic Oxyaquic Hapludalfs C Carbonton fine MW/1.0-2.0' P 20-40" Cr 5YR-10YR Moderate Fine, mixed, semiactive, thermic Oxyaquic Hapludalfs C Creedmoor fine MW-SP/1.0-2.0' P >60" 7.5YR-2.5Y High Fine, mixed, semiactive, thermic Aquic Hapludults C(D) Green Level fine SP/1.0-2.5' P >60" 2.5YR-10YR Very High Fine, mixed, active, thermic Vertic Hapludults C(D) Polkton fine MW/1.5-2.5' P 20-40" Cr 2.5YR-10YR Very High Fine, mixed, active, thermic Oxyaquic Vertic Hapludalfs C(D) White Store fine MW/1.0-1.5' P 40-60" Cr 2.5YR-10YR Very High Fine, mixed, active, thermic Oxyaquic Vertic Hapludalfs 1725 Farrington Road Hydraulic Conductivity Testing (Ksats) S&EC Ksat Calculations Chatham County, NC 2/20/2019 Measurements conducted by: Jacob McGaughey Checked by: Cory Connell Lot 3 Suitable Soll Total square footage: 23,955 Lot 3 Site t Death in cm/hour In/hour gpd/sf Bt 32.00 0.021 0.008 0.124 BC 40.00 0.101 0.040 0.597 C 50.00 0.051 0.020 0.301 Site 3 Depth In cm/hour in/hour gpd/sf Bt 32.00 0.031 0.012 0.1133 BC 40.00 0.015 0.006 0.089 C 49.00 0.027 0.001 0.160 Site 2 Depth In cm/hour in/hour gpd/sf Bt 28.00 0.036 0.014 0.213 BC 40.00 0.037 0.015 0.219 C 50.00 0.052 0.020 0.307 HORIZON Bt BC LOT 3 GEOMETRIC MEAN IN/HR IN/YR GPD/SF 0.011 98.696 0.169 0.015 131.990 0.226 0.008 65.958 0.245 AVERAGE: cm/hour in/hour gpd/sf 0.021 0.008301 012463 Inch Om - Hole Depth! 32 81.28 He 6 15.24 Hf: 6 15.24 AVERAGE: cm/hour in/hour gpd/sf 0.101 0.039835 a598118 Inch cm Hole Depth: 40 101.6 Hi: 6.5 16.51 Hf: 6.5 16.51 AVERAGE: cm/hour in/hour gpd/sf 0.051 0 020006 0.300391 inch cm Hole Depth: 50 127 Hi: 6 1524 Hf: 6 1524 AVERAGE: cm/hour in/hour gpd/sf 0 036 0 014047 0 210913 inch cm HWe Depth: 28 71.12 Hr 6 15.24 Hf 6 15.24 AVERAGE: cm/hour in/hour gpd/sf 0 037 0 014473 0 217304 inch L " Hole Depth: 401016 Hi: 6 1524 Hf: 6 1524 VIM —t Canduc-By ma 172JiPa"b:n J...b YeGaugnay Road mb- r Condldon P 136M.S2 sunny Talun 66'F ball GYaodmo4r AVERAGE: cm/hour in/hour gpd/sf 0.052 0.020432 0.306783 Inch cm Hole Depth: 50 127 Hi: 6 1524 Hf: 6 15.24 AVERAGE: cm/hour in/hour gpd/sf 0.031 0.012344 0,185348 Inch cm Hole Depth: 32 81.28 Hi: 6 15.24 Hf• 6 15.24 AVERAGE: cm/hour in/hour gpd/sf OA15 0.005959 CLO89478 inch cm Hole Depth' 40 1016 Hio 6 15.24 Hf: 6 15.24 AVERAGE: cm/hour in/hour gpd/sf 0.027 0.010589 0.158993 ]nch cm Hole Depth: 49 124.46 Hi: 6.5 16.51 Hf: &5 16.51 Waypoint G 7621 Whitepine Road, Richmond, VA 23237 Main 804-743-9401 ° Fax 804-271-6446 ANALYTICAL www.waypointanalytical.com TEXTURE ANALYSIS j! Client: Grower: Report No: 19-045-0633 SOIL & ENVIRONMENTAL 1719 Farrington Rd Cust No: 45479 8412 FALLS OF NEUSE ROAD 13609-52 Date Printed - 02/20/2019 SUITE 104 Page: 1 of 1 RALEIGH NC 27615 Farm Date Received: 02/14/2019 Lab Field ID Sample Percent Percent Percent Textural No Identification Sand Silt Clay Classification 18502 SS-L1 74.5 18.6 6.8 Sandy Loam 18503 SS-1-2 66.5 22.6 10.8 Sandy Loam 18504 SS-1-3 78.5 16.6 4.8 Loamy Sand Analysis prepared by: Waypoint Analytical Virginia, Inc. Page 1 of 2 Report Number: 19-045-0633 Account Number: 45479 Waypoint(D Send To: SOIL & ENVIRONMENTAL ANALYTICAL ACCOUNTS PAYABLE "Every acre... Every year 8412 FALLS OF NEUSE ROAD SUITE 104 RALEIGH NC 27615 SOIL ANALYSIS REPORT natty Rar-eived: 02/14/2019 Date Of Analvsis: 02/15/2019 Date Of Report: 02/20/2019 7621 Whitepine Road, Richmond, VA 23237 Main 804-743-9401 a Fax 804-271-6446 www.waypointanalytical.com Grower: 1719 Farrington Rd 13609-52 Analytical Method(s): SMP Buffer pH Ammonium Acetate Loss On Ignition Bray 131 Water pH NC = North Carolina Fertility Index Value OM WN ENR Phosphorus Potassium Magnesium Calcium Sodium pH Acldlty C.E.0 Sample ID Field ID Lab Number 18502 % Rate Soll Class Ibs/A 67 P1 ppm Rate ppm Rate ppm Rate K ppm Rate Mg ppm Rate 23.6 M Ca ppm Rate Na ppm Rate Soil PH Buffer Index H meq/100g meq/100g SS-L1 1.0 L 24.7 M 19.6 VL NC = 10 173 L 5.0 6.85 0.8 1.9 MIN SS-1_2 i SS-1_3 118504 18503 1. 76 18.8 M 10.0 L 7. = L 9 7.8 VL 1NC = 9 83.6 H 345 L 20.5 M 129 L 5.0 6.76 1.7 4.2 MIN 0.8 VLH 64 5.0 6.87 0.6 1.5 Percent Base Saturation Nitrate Sulfur Zinc Manganese Iron Copper Boron Soluble Saks Sample ID Field ID K % Mg % Ca % Na % H % NO,N PP m Rate S PP m Rate Zn PP m Rate Mn PP m Rate Fe PP m Rate Cu PP m Rate B PP m Rate SS ms/cm Rate _ SS-L1 2.6 10.4 45.5 42.1 0.04 VL SS-1_2 __[_2.3 16.6 1 41.1 40.5 0.05 VL SS-1_3 1 3.0 l 11.4 1 43.0 40.0 0.07 VL Values on this report represent the plant available nutrients in the Explanation of symbols: % (percent), ppm (parts per million), Ibs/A This report applies to sample(s) tested Samples are retained a soil. Rating after each value: VL (Very Low), L (Low), M (Medium), (pounds per acre), ms/cm (milli -mhos per centimeter), meq/100g maximum of thirty days after testing. by: H (High), VH (Very High). ENR - Estimated Nitrogen Release. (milli -equivalent per 100 grams). Conversions: ppm x 2 = Ibs/A, Soluble Analysis prepared by: Waypoint Analytical Virginia, Inc C.E.C. - Cation Exchange Capacity. Salts ms/cm x 640 = ppm. Pauric McGroary Page 2 of 2 Report Number: 19-045-0633 Account Number:45479 Send To: SOIL & ENVIRONMENTAL ACCOUNTS PAYABLE 8412 FALLS OF NEUSE ROAD SUITE 104 RALEIGH NC 27615 Date Received: 02/14/2019 Date Of Report: 02/20/2019 Waypoint0 ANALYTICAL "Every acre... Every year. "m 7621 Whitepine Road, Richmond, VA 23237 Main 804-743-9401 ° Fax 804-271-6446 www.waypointanalyrical.com Grower: 1719 Farrington Rd 13609-52 SOIL FERTILITY RECOMMENDATIONS Nitrogen Phosphate Potash Magnesium Sulfur Zinc Manganese Iron Copper Boron Sample ID Intended Crop Yield Goal Lime N P206 K20 Mg S Zn Mn Fe Cu B Field ID Tons Tons/A Ib/A Ib/A Ib/A Ib/A Ib/A Ib/A Ib/A Ib/A Ib/A Ib/A SS-L1 Hay 4 1.0 50 160 23 SS-L2 Hay l.. 4 1.5 50 160 0 SS-1-3 Hay 4 0.8 50 160 24 Comments: Sample(s) : SS-L2,SS-L3 Crop: Hay Apply additional 50 pounds of nitrogen after every cutting and harvest of hay. Apply additional 75 pounds of nitrogen after every cutting and harvest of hay. For grass hay or pasture needing high rates split the P and K application. Apply 1/2 in the spring and 1/2 in late summer. For soils low in sulfur, apply 20-40 Ibs of sulfur as a sulfate in the spring with the nitrogen. Sample(s) : SS-1-3 Crop: Hay Apply dolomitic lime to raise pH and improve the magnesium level. If dolomitic lime is not used, apply required magnesium with magnesium oxide. Epsom Salts, K-Mag or Sul-PO-Mag. The amount of fertilizer recommended on the first page is the total amount needed for the entire growing season. Split into 4-5 applications to keep the sports field green and prevent fertilizer loss. Custom blend is best to meet exactly the requirement, if this is impossible, the above specific fertilizer application is a general guideline, if the specified grades can not be found, replace with fertilizer having similar N:P:K ratio. For spring used sports fields apply nitrogen fertilizer applications starting in April after green up. Apply 0.5 - 0.75 Ibs of nitrogen per 1000 square feet in a 30 day period from April thru June and then 1 lb of nitrogen per 1000 square feet in September and November. Each application of nitrogen should contain at least 25% slow release nitrogen. For fall used sports fields, apply nitrogen fertilizer applications starting in July. Apply 0.5 - 0.75 Ibs of nitrogen per 1000 square feet inever 30 days from April thru June and then 1 lb of nitrogen per 1000 square feet in September, October and November. Each application of nitrogen should contain at least 25% slow release nitrogen "The recommendations are based on research data and experience, but NO GUARANTEE or WARRANTY expressed or implied, concerning crop performance is made." ��y1l Our reports and letters are for the exclusive and confidential use of our clients„ and may not be reproduced in whole or part, nor may any reference be made to the PAw« 10 69w work,the results, or the company in any advertising, news release, or other public anouncements without obtaining our prior written authorization. Copy right 1977. Pauric McGroary ENIGNEERING CALCULATIONS FOR WASTEWATER COLLECTION, TREATMENT, & DISPOSAL FACILITIES FOR A FOUR BEDROOM SINGLE FAMILY RESIDENCE PRETREATMENT FOR 480 GPD; SURFACE DRIP FOR 480 GPD 1725 FARRINGTON ROAD CHATHAM C O . N.C. OWNER: BLACKSMITH RANCH, LLC WILLIAM FOY, PRES. 1719 FARRINGTON ROAD APEX, NC 27523 919-219-6233 DESIGN EN[=INEEI JOHN R. HARMAN, + 2112 WHITE OAK RO.) RALEIGH, N.C. 27608 (919) 818-2077 MAY 10, 2023 OCTOBER 15, 2023 JOHlei R. HARMAN, P.E. CONSULTING ENGINEER 2112 White Oak Road Raleigh, North Carolina 27608 (o) 919.818.2077 (f) 919.779.0826 email= ackharman53,la �_),mailxom May 10, 2023 Rev. Oct. 15, 2023 Re: Engineering Calculations, System Component Sizing Documents, and Supporting Manufacturer's Cut Sheets Related to a Wastewater Treatment and Surface Drip Dispersal System to serve a Proposed Four Bedroom Single Family Residence located at 1725 Farrington Road tChatham Couply, NC . Conceptual Basis of Design: Project Description: The project is described as providing a wastewater collection, septic tank, advanced pre- treatment (NSF40, or better) components, UV Disinfection, a Flow EQ field dose pump tank, and surface dispersal by drip irrigation to four (4) field zones. Surrmary of System. Description: When approved the permit should read: "For the construction and operation of a 48o gallons per day (GPD) single family residence treatment and irrigation facility consisting of. a 1,500 gallon baffled septic tank with an effluent filter, a 2,500 gallon (two compartment) Recirculation/Storage Pump Tank, a Model 600 (600 GPD) EZ Treat Polystyrene Recirculating Media Filter, dosed by a 20 gallon per minute (GPM) recirculation pump, a flow splitting device, a io GPM UV disinfection unit, a 3,500 gallon Field Dose Tank, a 0.44 acre drip irrigation area with a minimum of 5,671 linear feet (LF) of drip line 2,835 emitters, a rainfall sensor to prevent irrigation during inclement weather, and all associated piping valves, controls, and appurtenances to serve the single family residence at 1725 Farrington Road, Apex, NC 27523, with no discharge of wastes to surface waters, pursuant to the application received, and in conformity with the Division approved plans and specifications considered to be a part of this permit. Component Sizing: • Septic Tank Sizing: 1,:9;00 Gallon The Septic Tank proposed for use will be equal in respects to NCDHHS Approval STB-390, for a 1,5oo Gallon Septic Tank. See Drawings for details. Recire Tank & Simplex Purnp for EZ Treat Media, Dosing per the NCDHHS Approval: As a minimum, equal in size to the Average Daily Flow (600 GPD). The Recire Pump Tank proposed for use is a 2,5oo Gallon_(2 Compartment) Pump Tank, equal in respects, to NCDHHS Approval PT-210. See Drawings for details. Field Dose Tank: The Field Dose Tank proposed for use is a 3,5oo Gallon Pump Tank, equal in respects to NCDHH A royal PT-210 . See Drawings for details. • Anti -Buoyancy Calculations For Tanks: -1 50o Gal Septic Tank: (ST-390; Shoaf PreCast Inc.)= 10.25' x 5.83' x 5.5' x 62.4 #/cf =-20,509 # (Upward) Dead Wt. of Tank (Shoaf PreCast, Inc): 13,000# (Downward) Weight of Soil on Top of Tank: 2.5' x ((10.25' x 5.5')- (2 x 3.14 x 1^2)) x 110pcf = 13,776# Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(0.33)x(o.5)x 1/2 x(llo- 62.4)(5.0^2)= 98#/l.f acting along circumference which gives a "Mired In" resistance of 98# x (2 x 10.25 + 2 x 5.5') =3087# (Downward) Total Upward Force:-20,509 # Total Downward Forces : z 000# + 13776# + 08 # = 2 86 # Net Downward Forces: 9,354# Safety Factor: [29863/20509]= S.F. >1.45 O.K. -2.So4 Gal Recirc Tank: (PT-2103 Shoaf PreCast, Inc.)= 12.50' x 6.5' x 5.5o h' x 62.4 #/cf = -27885# (Upward) Dead Wt. of Tank (Shoaf PreCast, Inc): 16000# (Downward) Weight of Soil on Top of Tank: 2.5' x ((12.5' x 6.5')- (2 x 3.14 x 1^2)) x 11opcf = 2o616# Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(0.33)x(o.5) x 1/2 x(110- 62.4)(5.5A2)= 119#/l.f. acting along circumference which gives a "Mired In" resistance of 119# x (2 x 12.5 + 2 x 6.5) =4522# (Downward) Total Upward Force: -27885 # Total Downward Forces : 160oo# + 2o616# + 22# = 4nn8# Net Downward Forces: 13253# Safety Factor: [41138/27885]= S.F. >1.48 O.K. _3,50o Gal. Field Dose/Storage Tank: Buoyancy (PT-2105; Shoaf PreCast, Inc.)= 12.5' x 6.5' x 7.33' x 62.4 #/cf =-37163# (Upward) Dead Wt. of Tank (D. Brantley & Sons, Inc): 19640# (Downward) Weight of Soil on Top of Tank: 3.0' x ((12.5' x 6.5)- (2 x 3.14 x 1^2)) x 11opcf = 24740# Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(0.33)x(o.5)x 1/2 x(110- 62.4)(7.33^2)=211#/l.f. acting along circumference which gives a "Mired In" resistance of 211# x (2 x 12.5' + 2 x 6.5') =8o18# (Downward) Total Upward Force: -37163 # Total Downward Force(s): (i9.64o# + 24.,740# + 8,018#) = 52,3.98# Net Downward Forces: 11,535# Safety Factor: [52,398/37,163]= S.F. >1.41 O.K. • Pressure Dosing to Media Filter: --Per manufacturer recommendations: Minimum of 6 times ADF to Media Filter: 6 x 480 gpd = 288o gpd to Media Filter. The Filter is dosed by; 8 sprayers @ 1.7 gpm = 13.6 gpm... dose volume is +/-40 gallons per dose x 72 doses (max) per day = 288o gpd. Timer: "On" time = 140 gal/dose / 13.6 gpm] = 2.94 min, or 177 seconds. "Off' time = 20 min -2.94 minutes = +/- 17.o6 minutes, or 1023 seconds. Recirc Ratio = 6. Dosing to the Media Filter will be by means of the EZ Treat Sta-Rite STEP 20 (0.5 Hp, 20 gpm) pump. • Flow EaruaUzation (EO) Tank/Field Dose Tank- Sizing: (Field Aonlication = aSo GPD) -Using Guidance of 5-Day Storage Requirement; 5 x 48o gpd =2400 gallon (Min.) Requirement -Bottom "Dead" Storage Requirement for Pump: 18"; Pump Off Elev = 261.5 -Using the Engineer specified 2,500 gallon Pre -Cast Tank: Recirc Vol for EZ Treat: 46" length = 600 Gallons; (Note: Required for PreTreatment of 48o GPD) Balance of this Tank Available for Field Storage: Field Storage Compartment=107" Emergency Volume Available in 250o Gal Tank above Pump Off Elev, to Inlet of UV: ((265.83-261.5) x 8.92'x 6.0')x 7.48=1733 Gals -In Addition....Using the Engineer specified 3,500 gallon Pre -Cast Tank: Emergency Volume Available above Pump Off Elev, to Inlet of UV: ((265.83-261.5) x 12.o'x6.o')x 7.48=2331 Gals Total Volume Available for Emergency tors a Above Pump Off: 4o6& Gallons-, E uals Ki Da @ 48o GPD -Vertical Distance for `Dose Enable" Float above "Off': Use 4"= Elev. 261.83 -Set "Peak Float" +/- 12" above "Dose Enable" Float = Elev. 262.83 •Drip Dispersal Unit: Use a Four (4) zone residential style model as produced by American MaiiiifactlUing Co. and equal in all respects to provisions of IWWS A.i-1-R6 or Engineer_ Approved Equal. Estimated Required Pump Conditions: 17 gallniin C& I 2 ft. TDH• Suggested Pump is PUTURB 1534122W, (0.75 Hp)as supplied by American Manufacturing Co., or approved equal. alculations of Pollutant Removal of PreTreatment Unit: The EZ Treat Model 600 Pretreatment System is an Innovated and Approved product sanction for use in North Carolina under the NCDHHS-Division of Public Health for meeting TS-2 level of wastewater renovation and pollutant removal (IWWS 2015-03-R2) and is incorporated herein by reference. It is also approved as meeting the less stringent levels of NSF 40 parameters of treatment (which is the level only required for surface application systems). The constituent levels required under Technical Standard 2 (TS-2) are as follows: a. Biochemical oxygen Demand, 5-day (BOD ) <10 mg/1. b. Total suspended solids < 10 mg/l. c. Ammonium -nitrogen < 10 mg/l. d. Either a 50% reduction of total nitrogen (organic + ammonium + nitrate forms) concentration in the septic tank effluent or a total nitrogen concentration in the effluent from the pretreatment unit < 15 mg/l. e. Fecal coliform bacteria densities < 10,000 colonies/100ml. (Standards are arithmetic means, except fecal coliform is a geometric mean). Calculations of Wastewater Loading to Surface Application Area: Total Application Area covered by Drip Laterals = +/- 19,120 Sq Ft. _ +/- 0.439 Ac -Max Annual Application = 365 days @ 48o GPD/Day = 175,2oo Gal/Year =6.452 Ac-In/Year -Max Annual Application = 6.452 Ac-In/Yr / 0.439 Ac = 14.70 Inches per Yr (which is less than Soils Scientist Recommendation of 14- 71 Inches/Yr; Therefore, okay) Effective Hyd Loading Rate =48o/19120=0.025 gpd/sf; Avg. Lateral Spacing: 19120 sf/5671 lf= 3.37 ft. Emitter Discharge Rate=o.61 gal/hr.; Area Covered by Each Emitter: 2.0' o.c. x 3.37'=6.74 sq. ft. Instantaneous Loading Rate to Soil: o.61 gph/6.74 s.f.=o.o91 gal/hr per s.f., or 3942 gal/hr per acre, or 0.146 inch/hr. Does not exceed Soil Scientist Limiting Value of o..q WILT -End of Design Calculations John R. Harman, PE Consulting Engineer A Template for Estimating Critical Flushing Flows & TDH by Comparative Zone Evaluation Method -rev 101813 Surface Drip-TDH Calcs 1725 FARRINGTON RD; APEX, NC John R. Harman, PE CELL COLOR LEGEND 2112 White Oak Road I Raleigh, North .Carolina 27tMU - = DESIGNER INPUT VALUE (91 ; -07 E-mai : jackharmanb @gmai .com I = UT CALC`L A Constant Recommende Pro ect: 1 11725 Farrington R Date: 20 3 Yn-g-r.-Ta-WARMAN, PERALEfGHNG ZONE 1 N !of I # Doses Lin. Ft. ' Lats Par fDay File: H C LCS 17 5 FARRINGTON RD; APEX NC i one # one 1772 5' - 2 Classi ication: Residential 7one 2 Iggs; 6 2 Daily Flow gpd): 4 Zone 3 1-5151 5 2 rea men evef: Lone 3' - -2 oas: Soils Report ax App rc oti�e:(GPD Sq.Ft.),: 0.0261 Appllcation Area y�18n Layout 12S.F. .Actua'F[ A by ayout: (GPD s 5 TOTALTOTAL# DF SINGLE ZONES: I 5671 .F. i # OF D0$E5 PER DAY: 8 1-Actual Dripper eng : 9 OrDDO ES PER SINGLE ZONE: I NIA ( F DOSES PER SE 0 umps ev.= 261.5 `See Plans IELD ZONES: ZONEI g2NE 2 ZONE 3 ZONE Lengt ofbr pper Line (ft): 5671 1772 1593 T515 791 Line Spacing ( pac g Between Laterals, 3.37 3.37 .37 ee Plans Application Area of Zones sq 1 19 59721 53681 5106 21566 Emitter Spacing O: 2 2 2 Emitter Flow (gpm : ( 0. 1 GPHIEmitter) 1 0.01017 0.01017 0.01017 0.01017 Dosing Flow(Normal Dose (from Ddpnet): 9.71. 7.91 7.55; Return Rusliing Flow from ❑rypnet): 8.32 9.90 8. Total Emitter & Flushing Flow (from npriet}: 17.03 17. 0 Total Head,(.) Loss Thru ripper is m (from Dnpnet): 98.37 76.14 2.7 Doses Per Day Per one: z 2 - Gal er Uose per zone o of Permit r 60.0 60.0 60. Volume in Laterals & Manifolds (From Drip et): 19.5 .6 5. l Zone Drainage Volume between doses(Assume 80%) j 11.7 ID.61 9. 9.2 Min. Dose for 5 times DrainageVolume: 1 56.5, 52.8, 46.81 45.9 Pump Run T1me Per ose min); it Running Singe Zone 6.9 6.9 6.91 6.9 Supply Main Inside Dia. (I Rem: 3 or 1/2" ch 40 PVC 1.50 .5(/ .50 apply ain low (C s): 6Flus g pisode .0397 0.0352 j1.50 0. Supply Main Velocity @ Flushing(fps): 1. Supplyva'in velocity DurIng Do iing ps : 1.6' 1.4 1.3 0.7 1.3, Re urn Main Inside Dia. (in):Rem: ' 2 1. -1.31 Return Main Flow c s : I I 0.0185 0.0221 0.0184 0.0135 j _ Return lV a n Velocity(fps,' 2.21 2.6 1. PUMP DESIG RIA: I -Supply Design Flow (gpm) at Flushing: 17.03 1 15.92 9.90 Return Design Flow (gpm).: 8. 2 9.90 &271 6.05 Friction o-e icient: =120 Conserv; C=140 Accptble To DEH] 130 13 Supply Length ft ; 207 309 Supply Head Loss ff : 2.751 5.313 Return Length (): 221 ' 290 4.841 8.76 7.29 4 Return HeadLoss ft : 4.85 265 High Pt Elev in Zone I j ELEV. LI P[IMP OFF TO ZONE KID, 269. 267 266 Static -Head ): 7.50 5. W 4.501 3.50 62.70 D p System Head Loss (Irom npnet): 63.03 76.141 Head Loss Thru Hydraulic Unit Allowance (5 psi) 1 11.55 11.55 11.551 11.55 j Desired Lat.Distal Pressure Req'd=5 psi (Berk -Rite Factor) 11.55 11.55 11.55 11.55 TOTAL DYNAMIC HEAD ESTIMATE ( 131,72 96.94 109.87 113.14 Pump Operating Conditions t 17. gpm 131.72'ft. TDH (ZONE 1) Design Specifications 1725 Farrington Road Apex, NC (Chatham Cou ntv} May 22, 2023 Oct. 15, 2023 �4c V. `I SEAL 981 ® l f � 4. � F tot A NRHA,,► � �y*��y1pf11�Hf5�- Site Preparation and Drainage 1. The contractor shall smooth the disturbed land surfaces after installation of all components of the wastewater treatment system have been completed, and shall leave the surface neatly shaped to shed rainwater. All disturbed areas and the discharge area shall be seeded with grass and covered with straw/mulch. 2. If illustrated on the Drawings, the drip irrigation field shall be protected from surface flow through the use of surface swales and/or interceptor drains. Surface swale and interceptor drain shall follow the slope of natural grade (1-2% slope) and at no point have less than 1 % slope. They are to be located no closer than 25 feet from the irrigation application area. . 3. All utilities including phone, electric and water lines shall be located prior to installation. If utilities interfere with the system design and components, the designer shall be contacted. 4. Any additions or removal of soil or other site alterations designated as active and /or repair drip dispersal areas, shall receive prior approval from the Engineer or Soil Scientist. 5. After installation of the drip lines, no disturbances such as tilling, plowing or other potentially destructive activity shall occur in the drip dispersal fields without prior approval from the Engineer. 6. The project engineer and soil scientist shall inspect and approve or deny all site modifications after they have been made. Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 1 of 7 Pipe Installation 7. All wastewater piping connecting the residence, septic tank, recirculation tank, and pump tank shall be 4-inch diameter Schedule 40 PVC sewer pipe laid at 1.0% minimum grade. Septic Tank, Recirculation Tank, and Pump Tank 8. The septic tank shall be State approved. The tank will be a 1,500 gallon capacity, reinforced precast concrete tank with full baffle, and shall have easy access to each chamber from ground level for checking and pumping. The first chamber of the septic tank will contain 2/3 to 3/4 of the volume of the total tank and the baffle shall contain a horizontal opening across the tank at about midway its height. The tank shall be placed at the location and elevation as required by plans and specifications. The tank shall be properly sealed using 1" diameter butyl rubber pliable sealant as approved by the tank manufacturer. 9. At the outlet opening of the precast concrete septic tank, install one Orenco Residential Biotube° effluent filter (FT-JP-04-NC) or its Engineer Approved equivalent, and provide easy access to the filter from ground level for checking and cleaning. The filter shall be provided by the Septic Tank provider and installed accordance with the manufacturer's recommendations. Substitutions shall be approved by the engineer in advance. 10. The recirculation tank for the EZ Treat filter dosing shall be State approved and provided by Shoaf PreCast (PT-2103), or engineer approved equal. The tank will be a two (2) compartment tank with an internal baffle wall (floor to ceiling) as indicated on the Drawings with an overall rating of 2500 gallons holding capacity as approved by the State, and bear the imprint of its DEH approval number clearly on the exterior outlet end of the tank. Access shall be provided for entry into the tank directly over the recic pump location and over the splitter valve, and extend the access openings to 6 inches above final grade. Both sections of the tank shall be properly sealed using 1-inch diameter butyl rubber pliable sealant as approved by the tank manufacturer. After joining the tank sections together, plaster along the joint with hydraulic cement, cement mortar, or other approved waterproofing sealant. All pipe penetrations in the tanks shall be booted with a State approved boot and stainless steel strap. 11.The Field Dose pump tank shall be provided by Shoaf PreCast (PT-2105) or engineer approved equal. and shall be State approved. The tank will be a 3500 gallon capacity (minimum) tank with access directly over the effluent pump and tank inlet. The access risers shall be 6 inches above finished grade. Both sections of the tank shall be properly sealed using 1-inch diameter butyl rubber pliable sealant as approved by the tank manufacturer. After joining the tank sections together, plaster along the joint with hydraulic cement, cement mortar, or other approved waterproofing sealant. All pipe penetrations in the tanks shall be booted with a State approved boot and stainless steel strap. Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 2 of 7 12. Before backfilling around all tanks, and after all piping has been connected with and sealed against the tanks, all tanks shall be filled to the outlet level with water, and shall be observed for 24 hours for leakage. If the water level within the tanks has changed more than 1/2 inch during the 24-hour inspection period, the tank leakage tests are considered to have failed, and the tank must not be used until the sources of the leaks have been found, the leaks properly sealed, and the tanks retested and the leakage tests are passed. The engineer or his representative shall be allowed to observe the installed tank/system configuration, prior to backfilling around the tanks. Approved vacuum testing (4 inch Hg for 5 minutes) of any or all tank(s) may be used in lieu of leakage testing. EZ Treat Recirculation Pump and Control Panel 13.The recirculation tank will contain the recirculating splitter valve and the turbine dosing pump. The forcemain shall have a drainback configuration without a pump check valve. The pump vault consists of a high -head effluent pump (Sta-Rite STEP 30-115 volt for a two pod; or, 20-115 volt for a single pod system), three float switch assembly all as provided by the EZ Treat Distributor. 14. The control panel shall be as provided for by the EZ Treat Distributor and in strict conformance with the NC IWWS Approval requirements. A combination EZ Treat Recirc and Drip Headworks control panel may also be used, if compatible with State IWWS Approval. EZ Treat Pretreatment Unit and Recirculation Tank 15.The EZ Treat pretreatment unit shall be as configured and constructed as described in North Carolina IWWS 2015-03-R1 for the 600 gpd rated modules. The Model 600 has a surface area of approximately 30 square feet and 42 inches in depth. It shall be timed dosed by pressure pipe distribution network using wide angle spray nozzles above the media. 16. Two air vents shall be installed for each pod. One air vent shall be located on the pod, and the other shall be located on the discharge cleanout. 17.The recirculating tank shall dose every 30 minutes for 3.0 minutes at approximately 126 gallons per dose for a two pod system, or 40-60 gallons per dose for a single pod system; Under peak water usage, it is the intent that the re- circulating tank will dose the filter 4 to 6 times for every 1 dose to the disposal site. Ultraviolet (UV) Disinfection Unit (if Required) 18. If required by permit requires a TS-2 level of pretreatment or if disposal is by means of surface drip application, the wastewater will flow by gravity to a single Four Bedroom Surface Drip 1725 Farrington Road Chatham Co.. NC Page 3 of 7 bulb UV-101 disinfection unit. The UV disinfection unit shall be provided by the EZ Treat Distributor and shall be installed according to manufacturer's specification. Perc-Rite Headworks Unit, Dosing Pump, and Control Panels 19. The headworks unit shall be a Four Zone Residential Drip Hydraulic Unit. The headworks unit contains a flow meter, solenoid valves, disk filter and check valve. The unit shall be provided by American Manufacturing Company, Inc. or other approved distributor. 20.The flow meter shall be as manufactured by Master Meter or other, as provided by the headworks unit provider. 21. The filter flush line, return line and each supply manifold for will have a normally - closed solenoid valve (DH-SOLVLV1) associated with each of them. The solenoid valves shall be provided by American Manufacturing Company, Inc. or other approved distributor. 22.The Disk Filter (DF-100-140) shall be placed in the headworks unit between the pump and drip field to screen out any debris. The filter shall be provided by American Manufacturing Company, Inc. or other approved distributor. 23. The control panel shall be as provided by the drip system integrator for specific application to its product and shall comprise of features required in its specific NC IWWS Approval. A rain sensor (Mini-Clik, Rain-Clik, etc.) shall be provided for Surface Drip Irrigation projects, and shall be wired into a "Dose Cut-out" relay to prevent field dosing applications during inclement weather. 24.The drip dosing pump shall be a high head effluent pump and pump 17 gal/min against 132 ft (TDH). The pump shall be a multi -stage effluent pump provided by American Manufacturing Company, Inc. (PUTURB1534122W). 25.A 3/8 inch or larger nylon rope shall be used to lift and lower the pump into place. The rope shall remain tied to the pump and to the outlet pipe at the threaded union for easy access. If a Flow Collar/Cool Guide is to be used, it shall not to be fixed to the bottom of the tank. This would prevent removal for maintenance. 26. Wire grips, duct seal, or other suitable material shall be used to seal around wire and wire conduit openings inside tanks and control panel. 27.All metal in tanks shall be stainless steel unless otherwise approved by the Engineer. 28.All control and power wiring for the entire wastewater disposal system shall be in compliance with all local, state, and federal regulations, codes and ordinances, and shall be confined on the site generally to the area of the pump, control floats, Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 4 of 7 automatic valves, control panel, alarm panel, and related wiring systems. The installation contractor shall be responsible for the costs of obtaining all power and control wiring for this system and shall coordinate his work with the owner. Manifolds and Drip Irrigation Lines 29. The supply lines and return line shall be Schedule 40 PVC, size as noted of plans. 30. Supply and return lines shall be sleeved using ductile iron or encased in concrete at the point of any drainage way crossing extending 5' on both side of the crossing 31.Air/vacuum release valves shall be placed at the ends of supply and return manifolds, and housed in plastic valve boxes, extending to ground level. 32. Return Pressure Assembly (if needed) shall be protected by an at grade valve box. 33. The supply and return manifold shall be 1.0-inch schedule 40 PVC. 34. Each supply and return manifold shall have an air/vacuum release valve. The air/vacuum release valves (AIRRELEASE1) shall be provided by American Manufacturing Company, Inc. 35. The air/vacuum release valves and manifolds shall be protected by valve boxes (DH-VALVEBOX) and easily accessible from the ground surface for maintenance. 36.The supply manifold (ditto for return manifold) shall consist of one saddle (or tee) per lateral connection, one ball valve, and one air/vacuum release valve. The ball valve shall be placed at the inlet of the manifold such that the effluent will pass through the ball valve prior to entering the saddles (or tees) (see design detail). This ball valve will also be used for pressure testing the supply or return mains at startup inspection. The saddles (or tees) shall be placed 4 to 6 inches apart and, the air/vacuum release valve shall be placed at the outlet end of the manifold. The air release valve shall be removable for use as a cleanout. 37.The Perc-Rite Pressure Compensating Dripline (08WRAM.6-24V) shall be installed a minimum of 6 inches below natural ground surface (for sub -surface systems, or at ground level for Surface Irrigation systems) on contour. The drip line shall be installed on sub -surface systems with a chain trencher, or vibratory plow. No heavy machinery shall be used in the drainfield area. 38. No trafficking in the irrigation application area. Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 5 of 7 39.The Engineer (and the Local Health Department, if applicable) shall be notified 48 hours in advance of intent to install dripper lines to arrange for inspection. 40. The drip emitters shall be placed 2 feet apart along the dripline. The emitters shall be Netafim Pressure Compensating type and 0.61 gal/hr rated. 41. Driplines shall have a minimum 2 feet horizontal spacing from adjacent driplines, or as indicated otherwise on the Drawings. 42. The Perc-Rite Pressure Compensating Dripline shall be connected to the supply and return manifolds using Bioline Insert Adapters (BIOINSERT12X12), Female Adapter SXT SCH 40, '/2" x'/2" (PVCPRFIP12X12), '/2" PVC Flex Tubing (PVC12FLEX), and Bioline Repair Coupling'/2" (BIOCOUP). 43. The return manifold shall consist of one air/vacuum release valve, one saddle (or tee) per lateral connection, one check valve, and one ball valve. The saddles (or tees) shall be placed 4 to 6 inches apart and are preceded by an air/vacuum release valve (see design details). A 1-inch brass check valve and a PVC ball valve shall be placed following the last saddle (or tee) connection and the return supply line. The air release valve shall be removable for use as a cleanout. Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 6 of 7 System Specification Summary -Daily Wastewater Flow 4 Bedroom 480 gpd Septic Tank Size 1,500 gal min Recirculation Tank Size 2500 gal Two compartment -See Drawings) Field Dose Pump Tank Size 3,500 gal Gravity Sewer Line (Septic Tank to Recirc. Tank +/+ 5 ft 4 in SCH 40 PVC Primary Pretreatment Unit State Approved Septic Tank Secondary Treatment Unit If Required) One EZ Treat 600 GPD Pod Pretreatment Unit Flow Rating Max 600 gpd (max); UV Disinfection: 10 GPM Pretreatment Dose Method Timer Controlled Pretreatment Dose Volume _ 40 al/dose @ +/- 13.6 Gal/Min Pretreatment Dose Duration 176 sec; or 2.94 minutes Pretreatment Dose Frequency 72 doses/day Dispersal Unit American Perc-Rite ; or Equal Average Daily Flow 100% Design Flow 480 gpd Dose Method Timer Controlled Average Volume Per Dose 60 al/dose Average Dose Frequency 8.0 doses/day Four Bedroom Surface Drip 1725 Farrington Road Chatham Co., NC Page 7 of 7 CONSTRUCTION PLANS FOR A WASTEWATER TREATMENT 11611 SURFACE DRIP IRRIGATION DISPOSAL SYSTEM FOR A FOUR BEDROOM RESIDENCE 1725 FARRINGTON ROAD (CHATHAM CO., NC APPROVED FOR DESIGN DAILY FLOW OF 480 GAL/D Chatham County GIS Map �d' Y Z O� O PROJECT pITE 1725 FA . INGTO ' I JJ� - O U S 64 - l _ u°'o V . 1/212021 7 52 12 AM 1:102,317 VICINITY MAP ° ;son ,aaa „noon Army Corps Land�rUDNw �oF'=eoh COW m RD NOTES: 1) SITE DATA WHICH INCLUDES PROPERTY BOUNDARIES, TOPO, UTILITIES, ROADS, AND OTHER SITE FEATURES WERE PROVIDED BY A SURVEY PREPARED BY SURVEY CAROLINA, PLLC; ASHEBORO, NC (SURVEYORS) AND ARE SHOWN TO DISPLAY GENERAL SITE CONDITIONS AND ARE PRESUMED TO BE ACCURATE. LOCATIONS OF PROPOSED STRUCTURES (HOUSES, DRIVEWAYS, AND WELLS) ARE SUBJECT TO MODIFICATION IF WITHIN THE CONTEXT OF APPLICABLE RULES FOR SETBACKS. 2) ALL SEPTIC SYSTEM COMPONENTS TO INCLUDE TANKS, PUMPS, MANIFOLDS, AND SYSTEM CONFIGURTION ARE APPROXIMATE AND AS SUCH NO SPECIFIC ACCURACY EITHER VERTICAL OR HORIZONTAL IS IMPLIED. SUITABLE SOIL/DISPOSAL APPLICATION AREAS HAVE BEEN GPS LOCATED BY SOIL & ENVIRONMENTAL CONSULTANTS, PA.- (919) 846-5900; RALEIGH, NC (SOIL SCIENTISTS). 3) PROPERTY AND EASEMENT BOUNDARIES SHOWN ON THIS SITE SKETCH ARE APPROXIMATE AND ARE NOT INTENDED FOR LOCATING PROPERTY OR IDENTIFYING PROPERTY OR EASEMENT CORNERS. THIS IS NOT A SURVEY. OWNER: Blacksmith Ranehe LLC CONTACT: William Foy, Pres. 1719 Farrington Road Apex, NC. 27523 919-219-6233 Notes: I. NC GS Monuments found within 2000' of property. 2. This project is located within a special flood hazard area- 3 Area calculated by coordinate geometry. 4. All lines surveyed by Survey Carolina, PLLC are indicated '3y bold Ilr.es. All ,fines nu[ surveyed by Survey Carolina, PLLC are indicated by dashed lines. 5 No attempt was made by this survey to locate all underground utilities nor any other easements that would be revealed by a title search, 6 Watershed: Critical Area 7. Zoning: R-1 B. AKPAR: 64655 ,, Flood Map: 3710x78200K 10 Tract 1 & 3 will he accessed through the new +0,374 Sg Ft Access Easement. Tract 2 is essed by Frontage on SR 008 1 e 1 E Z,kv New Tract 1 3.382 Acres 3 355 Aoa Clear of R1w I,.. WTanvmkvMlA•b,wfflhmy wp 4rawn vpwr my-o'P-'^�whpm+ar+cau, EvS'EN55 �y�r'm "••t- - a,m Y mein uroer my eoprn'vlan and rna few-s; MRvm,tflaa rwe bead P--the.-r I'rWertY lire IhIrs06t4rnw niufa-t Cd6ary Y', CJPaaA Cornptxed Property lire ' aY �i2 PE j c'' lxP41 ]T`H f]) f'oslaw - � aL iR f!)T19ae+Gx5b naalPmoaduri Rae,•>✓m. NL,wfriec /Nfwe1/•a _ __ H of Way lire Gxnant WE it . - (�) Lures dr FIwv6Y- JWY A. mid T. Lira + (!)paoadEpoch mw qm 1,"MOW + �, + (e/ln,Nlwyrvw-pwlrw �.:Nm team. ewr Tkw N-& - - - aw not eaot urte f7)04aa n,cON: OYNtl 1TA r 0 Emtligh -,Pipe SI[e fa) epm 'bkV r- f,): d.fKa a • New Iron Bodmlpe ryJG-13NBS SUN Poill, A Petri Nrs Sr_lCd,yOeed Pdht k:1lf-M.05 c: t.9a0,9exa9 srnl.n ® yeg ffd W.n' u55,wtwyl ,,Oao WT-H,PrWessbre L..S-yes Wy Feld lomtlan to locate peewlat, rotmpt-am eph-ail st-pmcredd weber r Location Map I,rot to Scale) I,Ixttn,srm rrH, ryC ym�6]Jp(p 11a bptlla, antl weaar,ds bus been canpletN by Uetlum Casnty ln[aanbeNs;lzANDI� ��have aywterlUtva valR t°Ctatlwn WntY ^ParianbWler regvlremm me xvl,ry vnelosii'RAi9f.CV�NIaM wNm Me aria ofecamNor mw,ciparrN Mal Ks en adMsnce NN! e9Welasaeottsafrond DerNaP,nnd a redmNop,rrent of a Mher SulMlvislw a an Indhiduil raldnrllal Don Wiwwr ll-to roof v,.o iolwne d,rm W oeadadrely ea dibe 20.om square !ee[ of lom dlnwbence shell comply w11h 5a11on 165 N51E1id) rid tes Lfamseny Sermon 100(5)(d) arrd tell of Ne en eGuasl,rveYmeds eurp•uiy rv:•a'sssiar /yred�car'1M 16 S R Uslum fnnbY Stwmwtic Qdlrunte] 15xn�ndia_ en'•fsvar. ,MI Me Oourldgr•a wlsurseyw -Wa l,7uvwrr AY.n mfvi,yrnhyr•dg ul eocR pia aa,7a au rya VPmcioa+nmsrassw accmer�¢oikrn'a:Md fd4n71' IWBlts iiMl fOf)�¢��ai �.e,. �tian ✓yr �R JJ(�. Mef VIIs WMmiaCrKnrodnpa-sidn•rw wel�G.S W,Xi- sripr afam Nfr4M1bMv+trLi,�fr ncly Wr,n,CraartY. the plat has been f C lmeubtl NAsroiauryunprW ePrAd liwnsB aar,6erarrtl aeertlaa fie Tin oltyaAp.'AC 2t>7r Nf ' a o-dfv,-.dhq In the e111cenr nW ekelry Ary'-ot6eed•_ 1 p�lrL Sd-aozi llxeetdrd WrmrFFa Atlem Date 77 147t. utBvhN "%K'TPfaa ElalneH Manhtws l DIRS z9 2m ed ,Ar1rel Pe late I§ Ito P. Ino n' New Tract3 / . 1'• Acres Total '.861 gr.rwR,w S U B E C T r-•-Rf PY>` J 1 7Z JefARRI I iGT0 R gyp' l S H Jimmy Ray S7ATc OF NDRTHCAROLINA ... -}• LNAn .1161,411 PB a Pg Bb r�M1wcof 11-0. gawx lJlScn NClltlnVNY. ,� �d AJIpm 17691 G.airy x rphf!_ s,rirn R,u w- rs adrtad mows W s:aNMy,upm,emeNs fw mco,dng `G V -EC i 32P 21 „Q 'lbcl•'� , � ., 11afe Rdnew or. r elacksmlth Ranch LLC • Apex, Road /% NC f ��na Apex, NC 2752523 \����77��/// =.kidivision Survey For: William Foy j Now Hope Township Chatham County K North Carolina APHI 7, 2021 /ctp �>� ee Dd Book:2090 P9:211 Plat Book: B7 Pg: 3B6 rEc ,nay o7 zasr z:ppJ om _ Plat Book: 87 Pg: 346 tn.57 mil.'- ::m, clzs �'tN scale: 1"- 60 US survey Fear aamuEl6NT man+'�+ ♦c� Ba S ale: / SURVEY CAROLINA, PLL-C 0sv1FA CERTIFICCn0N aF NON •1lD•G LOT 154 5. Fayetteville St, Suite B, Asheboro, NC 27203 Cunt•sr Iri n tM rM lug pr•rp:, vavNwaysMi A' [mWm,4 :uettbh vim vrvtnr,anH>,ddlrq Wts W Tr•! t, T'a N.- xraribe, D5 675 am Vic, snmo 1-.,�-P.a bWldirq permit for a Wllt'r,E on aoyk. z.and Tv¢3A,NrwwtmotK logs) steer, wthhplaito Emil' mall3wrw•ywn��n¢.rvn sened by Abe easemws per sM,w 7 4 1513t buedable blssha9 requie complkrae with se Hoo 5 3.1 a,e Chatham amen l: A.ir11 Canes s1E6rklw Rey4- aer wr.marn r,.n6r ' _ 02031S-yCaroAna. PHc Jab K: 12144 I NCDENR PERMIT WO #0044550 SFR CL Z J V J a >-- V Z No U_ zQ� °g > O um 06 W Z u � z O L.L < W . LU LL CL Q 4 Q O 2 � a /o/��C W U ,Ljy 6� J W 5� p00 �w w -Y NM � r N p 0 U N � O Q SEAL • 9810 t,��NGII�EF'� ,•;•► ►►f ff� ,g%''►' ,,. :f�� V�r_44��►�4f�►�. +r M DRIP LATERAL INFORMATION E: 997 "F Survey Feet 317.6 C> CID RUN NO. RUN LENGTH LATERALLENGTH ■ ■ Q I f r4 1 - 19 — ---- a 89 17 4 E 57.63 Total to 1L = o 2 23 Z 1 4 6Q - 4 32 0 3 28 rV - -- - ' - - - - ET 4 C K C N 5 36 7 � 45 8 49 E �' N J 9 54 326 r14 59 �/ z T I N M I O L ? Z = 63 67 A - 4 4� ' CIS a QZQ �/ d 72 � CC 76 337 L 81 �!7 74 LV, . 4J - l P f' - !� � L , T Y F . � N Q 17 73 \ ` a • ' \ N O 18 72 , r 19 70 370 0 \ a� � V 20 70 ry� r. L, - P , �� C� z z V 21 71 N . LL m 22 72 O , 1o. C� �f�' \ O 23 73 E J SJ�F. i' F L f�+ 73 $ _ J ( W Z_ U FRO _ Z 25 74 359 � I P� D 1 i�k � � --- � � � z f �frn V D�'�e� �:ER'__= 27 76 �,NL' 28 77 - [ - i - P� -- - -- ' LU U 29 78 380 1772 - - [ - i f1�-- - - "" 1I `/1 �r_-- ---- - ------ - , r / f '' - L1'1 V I 30 80--I—I I— 1—[—I FRT �FiB„MOB a C a 31 826p��'-��4', % /, 32 83 245 - [-I-� ' [-[ �[-[- [ �91, -__ 3 35 86 255 N - l r 1 lUn . Ce- / ~ Q� 85 o 'r I "',CCCrrr 0 U 36 87 - I 1I 1 , 38 89 264 2S HYDRAULIC UNIT - I - - - - - - 0�7 • 40 90 ! 1 _A 41 91 271 T T04 O9G+a_ ,',�,' !� i. / 42 91 .b 'RnC �.�v .Y� - '� • 44 93 276 W rape 7 93 0 46 94 ICT k S�6 `g� --� I -I- / W 0 47 95 282 1593 f L - - - / .�.��.I 0 000 48 96 l 49 97 Q /', 00 50 98 291 Z �� 51 98 0 52 99 N . m L-Zq O . �� }� n U 00 53 100 297 E ,n] �qj G7 , yZ IA ,Qp. W / 1) YA z 0) 54 101 % �� �_ Jv � rl 55 101 ra e�A,� � -C 56 10303 T / Propose 57 102 p �n H � ' • 0 58 103 R ♦ ��. �� _ R N 60 105 E 59 104 309 E ♦ New ew 4 � � � -- - � IL�'J C)Icy 0 61 105 7- BedRoom • N 62 10315 1515 • 63 108 S Z � 64 91 65 77 276 O � D! I i n +� SS' we� 67 59 N �j�'f ,0>, x 68 52 w rJ .C1 , yA 69 46 E `_%5 �' ` ti.I �� "..� ill! � �r1■ 70 42 264 .� /� o �, �� . .,��, „ N Q_//j/ %, 71 3° F +.i0 �� % �.Q� �^3 5 C A L E I °,- . O 73 34 + - ' • ` SEAL 74 31 O ! � y� ■ 75 25 n� ``rl``f ��T <b• i) `� 9810 76 77 19 R F -.'� 0 �� �T '0 / .�h V�jD /,[.33 Q' 15' 0 3 4' 1719 79 15 251 791 ��� •-'��y,'y�{�� '' 1�'�7� ,. TOTAL: 5671 LF. L / �O J {�,[ 1� •�+i+._■'r+,�; `,� `.. '�� AVG SPC'G: 3.37 FT <! Yi/• �+\ 1 1-1/4" EIP FLus N: 731,832.83 round U5 Survey Feet E: 1,997,128.7 Ground US Survey Feet ■ o • Soil Amendment Notes: The surface drip application area shall receive a minimum of 6 inches of fill to be placed on top of the existing soil surface so that the vertical separation to prohibitive soil characteristics is met. The fill material must have a soil texture of sandy loam in order to establish vegatative cover and must contain no more than 10% (by volume) fibrous organics, or other debris. The fill material and the existing soil shall be mixed to a depth of six inches below their interface. All heavy vegatative cover and organic littershall be removed from the existing soil surface before fill material is added. The side slope of the fill shall not exceed a rise to run ratio of 1:4. The fill area shall be constructed as to shed surface water and stabilized with a sustainable vegatative cover. �4 ZONE HY[)RAULIC UNIT V44A Seeding, Fertilizing, & Mulching: Grass Species: Tall Fescue, Ry, or Bermuda @ 100# per Acre Overseed 50# per Acre with Tall Fescue each Fall until well established. Apply Lime and Fertilizer according to test; or, apply 400# per Acre of Pulverized Lime and 1000# per Acre of 10-10-10 Fertilizer. Mulching application shall be 4000# per Acre of Wheat Straw, or as may be DB 14E Pg 2 P B 2 0 18 P g 1 adjusted by visual inspection. Anchor Mulch as needed by tacking with asphalt n etti na. or other anoroved means. rPAR 1756 31E 0 I74 E IL'3o ~ FEEDER LINES (TYP) lI Of 172 .1 111�111��1�11��i��r:���E�D,� r 1 S I O' 0 , tK 0NO �C U N J qZ = J U a Z w No �Q No �13� W o Ug wZ Z �Q o Q C14 a W F— Ln Q 14 Ju W 0000 •rl CY, ON a N ♦ �—I w U U °0 C� Q) z ap = /C N — a 0 Or D:� 0 N � O Q¢ SEAL i ; 9810 V.Vo-w'�.II..; ' �'• R. Opp a* us�1 ly?t Sp, 'STo � ,�Tq � S,e�bo� rm 4 ZONE HYDRAULIC UNIT o(o oj/ ` C*4 1 O co 1111 L O �oa Q M N J Z Lu Q _ Z C L 10, ~ ~ NQ �° vu Z W o �g �- W Z z w j u c� oc ¢ N Lu z a o= w .2 u _ 0 N W p 00 -�0c) W °N� 0 00 -0') cn N'Q) 10, N � .9 y 5' 0 SEAL 9810 -F E-Z TREAT POD MODEL 600 :FREE CKF! OFtEBRIS GRA -- VALVE (TYP ; U4-1/2"SUPP LINE ETU -EXISTING GRADE 1-r E-Z TTRTOD SECTION TH_ RU EZ TREAT POD-SPRAYN LE (TYP NTS 4" SERVICE LINE FROM FACILITY SEPTIC FLOW 10' MINIMUM 1 5/4 TREX BOARD Z TYPICAL EFFLUENT FILTER —` 314"0 RECIRC CI III NOTE TWO ACCESS RISERS SHOWN CAN BE COMBINED TO A SINGLE 30" DIA Z SET BYPASS VALVE 24" E-Z SET RISERS (TY - 24"0 E-Z SET RISER �o WITH COVER. STEP 20 TURBINEYUMP FIN. GRADE 4" PVC TEE M N O N co = 4" PVC END CAP NOTE: DO NOT — O GLUE ONTO RISER PIPE DRILL 1/4" o VENT HOLE IN CAP v Q Z — 4" PVC RISER PIPE - EXTEND a A t - ABOVE BOTTOM OF TANK a 0 LID U Wj::34" FROM FILTERS N N J L 4" TO FIELD DOSING Z = TANK +, QJJ U -E-Z SET BYPASS VALVE Q d z LJJ ALL TANKS REQUIRE A < ~ 6" THICK STONE BASE WT-yp) N O Y H- 0C -� U SECTION THRU RECIRC TEE +-' Z Z0 NTS 24"0 E-Z SET RISER WITH COVER (TYP) OPTIONAL 2" VENT CARBON FILTER OF � 4^ REQ. PER LOCAL r CODE) L` UV UNIT L 24"0 (TYP) TREATED EFFLUENT LINE TO 4" SCH 40 PVC BOTTOM CONTROL PANEL FOR EZ TREAT FLOW UV /FIELD DOSE TANK CONNECTION OF TANKS I" DRIP FILTER BACKWASH/FIELD FLUSH RETURN FROM DRIP HYDRAULIC UNIT SEPTIC TANK RECIRC. TANK FIELD DOSE TANK INC DHHS APPROVED 2500 GAL. PUMP TANK - NC DHHS APPROVED 3500 GAL. PUMP TANK NC DHHS APPROVED 1500 GAL. SEPTIC TANK - PT-2103 OR EQUAL PT-2105 OR EQUAL ST-390 OR EQUAL 01 A Al NTS FIN.GRADE: ELEV. "A" (SEE NOTE: FIELD TANK ELEVATION VERIFY PRIOR z— 30"0 E-Z SET RISER WITH COVER. SCHEDULE) 314" BALL VALVE TO ORDERING 24"0 E-Z SET RISER WITH COVER 8" MIN., 12' CLEAN -OUT 24"0 E-Z SET RISER RISERS MAX / (TYP) WITH COVER {TYP - 3!4" R2CIRC LINE FIN.GRADE: ELEV. "A" t ALARM LIGHT NOTE: POWER TO WITH COVER SET RISER - THIS PANEL IS 230 VAC WITH (TYP) CONTROL PANEL (LOCATED WITHIN 10-FEET OF TANKS) FIN.GRADE: UV DISINFECTION UNIT ELEV. "A" MODEL EZ SET UV 1000-S OR APPROVED EQUAL - IN - n 4'PV OUT=ELEV. HIG 'ROSS Ev . LE4.-W ..C" INV. IN=ELEV p • PUTTER VALVE BYPASSUV UNITEFFLL1BJf !NVIN�WA EMERGENCY SfORAGETHIS :4'M FILTER COMPARTMENT & HELD DOSE TANTOM(SIZED PER g064 GALLONS `CH EDTANCSDESIGN DSE +•c•IS' 40 PVCFLOW) TER-TIGHTE WALL 45" 107"� OTSl boo GAL MIN COMPARTMENT FLOOR= ELEV-'G 1/2 HP, I ISV• 20 GPM L 6• STONE BASE - SEPTIC TANK DOSING EPIJMP ZTREATR RECIRC. & STORAGE I�WAAL) DOSING EZ TREAT 4R EQUAL} - 1500 GALLON SEPTIC TANK POD NOT SHOWN 2500 GALLON RECIRC PUMP & STORAGE TANK STB-390 PT-2103 +/_ 44 GALS PER INCH SHOAF PRECAST CONCRETE, OR EQUAL SHOAF PRECAST CONCRETE, OR EQUAL SECTION VIEW NTS co O L 1 1 /2" SCH 40 PVC CU w Z Z SUPPLY LINES L. oC — CL F- _T RISER WITH OVER oC Q O DISPOSAL FIELD 06 LU ESL Q N ^ Q Lu v Q if] c = FOR DRIP 1 114" SCH 40 PVC RETURN LIN (%� Gq� b U h o� 0 L!� CONTROL PANEL FOR DRIP -4 ZONE DRIP HYDRAULIC FILTER & VALVE UNIT (REFER TO SITE PLAN FOR NUMBER OF ZONES) RAIN SENSOR (IRRIGATION CUT OFF); MINI-CLIK, RAIN-CLIK, HUNTER INDUSTRIES, OR EQUAL 4" x 4" TREATED POST DRIP CONTROL PANEL 36" MIN WITH ALARM CONDUIT FOR PUMP n FIN.GRADE: ELEV. "A" TO DISPOSAL EMERG. STORAGE VOL - +/- 4064 GALS (USING BOTH TANKS) i�PGF�'V'17'ATE PEAK ENABLE= ELEV. 'I" r ` ELEV "c" WEIGHTED MERCURYFLOAT��V ir FLOOR= ELEV. "K" SWITCHES..(4j. FIELD DOSE TANK 3500 GALLON PUMP TANK +/- 47 GALS PER INCH PT-2105 SHOAF PRECAST CONCRETE, OR EQUAL TANK ELEVATION SCHEDULE ELEV. "A" 270.00 ELEV. "B" 266.40 ELEV."C" 266.20 ELEV.I'D" 266.00 ELEV."E" 265,83 ELEV.'IF" 267.00 ELEV. "G" 261.83 ELEV. "H" 261.50 ELEV. "1" 261.83 ELEV. IT' 262.83 ELEV. "K" 260.00 W �•( OO 000 ct ,�.( Elf � N O N �-I w 0000 �ZO cn N-� N 0 N � � rO SEN�L, 9810 5 4a1 1 C// OUTLET NEXT ASSY USED ON APPLICATION a UNLESS OTHERWISE SPECIFIED NAME DIMENSIONS ARE IN INCHES DRAWN TOLERANCES FRACTIONAL ± CHECKED ENG APPR ANGULAR, MACH ± BEND ± TWO PLACE DECIMAL ± MFG APPR THREE PLACE DECIMAL '- INTERPRET GEOMETRIC Q A TOLERANCWG PER COMMENTS 0TERIAL FLOW RATE 10 GALLONS ;,N.-'. A MINUTE DO NOT SCALE DRAWING 4. INLET V LAMP DATE PATENT :- :=. Nl IN TITLE UV-101 SINGLE LAMP REV SCALD 1-20 , EIG- 1 SHEET 1 OF I 60" LONG "T" POSTS FIBERGLASS OR PAINTED STEEL `1 SET POSTS @ +I- 25' SPACING 14 GA. HI -TENSILE STEEL WIRE 11=111= 11, +1- 24" BURY DETAIL OF FENCING REQUIRED AROUND 24 22 20 181 16, N Li 1 4, 12, Q) 101 O Q ~ 8C 6C 4C 2C PUMP CURVE FOR DRIP DOSING 15 GPM TO 25 GPM �4 V 12 20 28 36 44 Gallons Per Minute cuwan urensaee uwure euAan U.LLCNS PM inure PUMP CURVE EZ TREAT FILTER DOSING I _ aE rn N O cV "' : o 00 O o U J J Z CL u a Z w Z I 0 LLIp � C7 v) a U 0 �R �u Ug m W o Li Z USE THIS PUMP d Z < U 06 W LLm a N a• LLJ A A a va o U 1. OPERATING w NDITONS: CL GPM @ 132' TDH w �•� OO 000 ?••I •� ft� ON r--00 w —Y O N �•�I b�A 0000 a) z I N 0 c� U -c N '10- CAR a¢ = SEAL 9810 (NOT TO SCALE) �'• R. IA`` M Supply line depth Is Below frost line STANDARD RESIDENTIAL DRIP SYSTEM DETAILS P1 TOP FEED MANIFOLDS USE ON ALL SITES WITH A DISCERNIBLE SLOPE TO CONTROL DRAIN DOWN FROM UPPER LATERALS TO LOWER LATERALS AFTER PUMP SHUTS OFF. AIR RELEASE 12" VALVE MoniFald T016p,Im Cover Depth }� + }Return 1( pPIY 7/2' Supply Retul` Manifold } } }+ } }+ PRESSURE + }++ } } }} } PRESSURE DRIPPER TUB] } } + DRIPPER TUBING RIGID_ Elevate loops F2 Install insulation for shallow systems in freezing climates Normally Open Supply Valves Backflush Valves 11/2" Supply From Pump Tank 1/2" PVC MAIN SUPPLY PIPE BELOW FROST LINE } +}► + 1 + }} FINISHED GRADE INSTALLATION DEPTH INSTALLATION DEPTH Air Release Valve above highest drip run in that zone. Top Fe=_C on silPs with di�ctrnib!e slope. RESIDENTIAL 1/2" PVC FLEX + AIR RELEASE VALVE COMMON RETURN PIPE Patent No. 5,984,5748 AMERICAN MFG. COMPANY TWO -FILTER - 15 GPM HYDRAULIC UNIT Flowmeter Disc Filters Normally Closed -ield Flush Valve 12' HYDRAULIC U TUBING FINGER SCREEN w/ 6mm 90' ELL 6mm 90' ELL PRESSURE RELIEF / RPA CONNECTS PRESSURE SEPTIC TANK I RETURN ALUMINUM BASE DRIPFlELD Install insulation COMMON RETURN far shallow systems infreezingclimates See diagram above RETURN PRESSURE ASSEMBLY (RPA) N TS N OTE: IN THE EVENT THE DRIP ZONES ARE A DISCERNIBLE VERTICAL ELEVATION ABOVE THE HYDRAULIC UNIT, INSTALL A "RETURN PRESSURE ASSEMBLY." THE ASSEMBLY IS TO BE USED TO PREVENT THE RETURN LINE FROM DRAINING AFTER OR DURING A DOSE. REMOVE THE ZONE RETURN CONNECTION AND REINSTALL A SHORT 1" NIPPLE IN THE RETURN VALVE. INSTALL ASSEMBLY AS SHOWN ABOVE. THE HYDRAULIC TUBING PROVIDING PRESSURE FOR THE REST OF THE UNIT MUST BE PLUGGED AND THE NEW TUBING FROM THE ASSEMBLY CONNECTED TO THE PRESSURE SIDE OF THE SOLENOID. 11h" Return To Septic Tank 1" Normally Closed To Return Pressure Zone Valves Assembly DRIPPER LINE ❑4 1/2" FLEX PVC (4' typ. PVC FIP ADAPTER RAM INSERT ADAPTER 6" MIN SEPARATION`S BURIED DRIP LOOP CONNECTION N O N 00 L 0 bo Q 0 U Ln Z J 2 U Cd LU V 0� U N w Z Ug L7L 0 ' WW Z I.L Z 0 Q 0 W N L Q N ui LU r Q ~ cQ d ° U DRIPPER LINE W 41 k FINISHED GRADE 41 4/ 0000 PVC PIPE 41 ����'--�i---II[ w N DD C PVC TEE '� 0 000 (D z a� EARTHEN DAM IN TRENCH TO PREVENT FLOW ALONG ++ +' t0) FLEX PVC LOOP Cn N � N DRIPPER LINE SECTION DETAIL 0 N TS a_ SIDE FEED OPTION ,. FLAT SITES ONLY. AC) SEAL 3 9810 SITE CLEARING GUIDELINES General guidelines for preparing/clearing a site for installation of an American Mfg. "Perc-Rite@" Drip System: GENERAL REQUIREMENTS: The preservation of the original structure of the soil in the absorption area is essential to maintaining the percolative capacity of the soil. No activity other than the construction of the system is permitted within the absorption area. On sites where a majority of the vegetation needs to be removed, care must be taken to minimize the impact on the soils natural permeability. There shall be no cutting, filling, or storage of material on or within 20' of the adsorption area. Site clearing and preparation shall be performed by the installation contractor for the wastewater dispersal system. The absorption system is not to be constructed during periods of wet weather when the soil is sufficiently wet at the depth of installation to exceed its plastic limit. The plastic limit is exceeded when the soil can be rolled between the palms of the hands to produce threads 1/8 inch in diameter without breaking and crumbling. After installation of the dispersal system, or if after clearing installation is not to be performed for 60 days, seed the area liberally with native grasses. The standard Department Of Transportation specification is acceptable consisting of perennial rye and fescue. At all times protect the installation area from erosion. Local codes shall apply for best management practices to control runoff. SHALLOW INSTALLATIONS (surface to 8"): Clearing and removal should be by hand with minimal machine assistance and under optimum soil moisture conditions. Track machines are preferred to those with rubber tires and should only be used around edges of installation. Soil moisture conditions need to be confirmed prior to beginning clearing and system installation by the soil scientist of record. LARGE SCALE INSTALLATION TESTING: Larger systems typically do not have water available for zone installation testing on a timely manner. It is desirable to water test an installed zone while the supply and return manifold header ditches are exposed to better inspect for leaks. In order to facilitate site and equipment protection and erosion control, the installation contractor shall provide sufficient water and the means to deliver and monitor the water to both flush and leak test each zone or subzone prior to backfill. The flushing volume shall be five times the volume of the piping network being flushed. The flushing velocity shall be in excess of 2-1/2 feet per second. The leak testing volume shall be at least 3 times the volume of the pipe. The leak test shall continue until steady state flow is achieved and the flow rate is within 6% of the design flow rate or as approved by the manufacturer or engineer. After successful testing and inspection the supply and return pipe connection points shall be sealed and protected from dirt and debris from entering prior to final connection. General Construction Notes American Manufacturing "Perc-Rite@" Drip 1. All installation and construction techniques shall conform to state and county codes pertaining to on site sewage systems and the permit for this site. 2. The installation of this system shall be in accordance with specifications and procedures as supplied by the Manufacturer of the equipment. 3. The drip tubing shall be installed using a vibratory plow, trencher, or by hand. 4. All tubing to be installed along contour. 5. All PVC pipe and fittings shall be PVC SCH 40 Type 1 rated for pressure applications. All glued joints shall be cleaned and primed with purple (dyed) PVC primer prior to being glued. 6. All cutting of PVC pipe, flexible PVC and dripper tubing of size 1 1/2" or smaller shall be accomplished with pipe cutters approved by American Manufacturing Company, Inc. No sawing of PVC, flexible PVC or dripper tubing of size 1 1/2" or smaller allowed. 7. All PVC pipe, flexible PVC and dripper tubing in the work area shall have the ends covered with duct tape to prevent construction debris from entering the pipe. Prior to gluing, all joints shall be inspected for and cleared of any construction debris. 8. All automatic valves (zone valves & field flush return valves) shall be installed with isolation valves, bypass valves, and disconnects (i.e. unions, flanges) for manual field operation during field maintenance events. All valves must be provided with at -grade access. 9. Drain field supply and return lines and manifolds to be installed at adequate depth to prevent freezing. Horizontal spacing between the dripper lines and the installation depth to be as specified. 10. No activity on drain field area other than minimum required to install system. Do not park equipment, drive large equipment over or store materials on drain field area. 11. No wet weather installation is permitted. 12. The contractor shall be certified by American Manufacturing Company, Inc. to install this type of system and shall hold a pre -construction meeting with the individuals responsible for soil evaluation, permitting and inspections prior to site work beginning to insure protection of the site conditions and to ensure the system is installed according to design. 13. If site conditions are determined to require the installation of the system to deviate from these plans, all work shall stop immediately and the designer shall be notified. Any ongoing work shall be at the sole responsibility of the contractor. 14. All force mains shall be tested for leaks prior to drip tubing installation and prior to system startup, at 60 psi for 2 hours without a drop of 5 psi. Uncovered force mains shall be visibly inspected for leaks. If a leak is suspected in covered force mains then the force main shall be re -tested at a minimum pressure of at least 30 percent above the design operating pressure, for at least 30 minutes. There shall be no discernible leakage. 15. ASD15 & 25 Hydraulic units to be placed on a bed of gravel for drainage. 16. If standing groundwater is a problem a screened drain to daylight is required. DESIGN PARAMETERS & USAGE AGREEMENT: Every attempt has been made subdue adverse conditions of this site. Therefore, the designer and/or engineer shall not be held liable for: 1. Improper installation; 2. Improper or lacking operation and maintenance; 3. System abuse; 4. Improper use; 5. Any activity conflicting with the guidelines setforth in the manufacturer's operation and maintenance manual; 6. Any activity conflicting with 15A NCAC 18A .1900 rules and applicable wastewater system approvals; 7. Any activity outside of the designer's and/or engineer's purview. Acceptance and use of these documents constitute agreement with the following: 1. In no case shall the liability to the designer or engineer for damages exceed the amount recived by the designer and/or engineer for professional services rendered. 2. In no case shall the designer and/or engineer be held liable for activities outside of his or her's purview. P� r_i r4 0 cC Q N a w N N Z W w cc cC w Q 1 1 .. `J o l%, Z N Q 01C Z �c aC LL Ln N U O U _0 r- p000 ON Q0I �r-00 O N O U 00 a)zl iE 3: t_ N N [Ift N it • r 4J V .r SEAL 9810 J GENERAL NOTES: ES: (NOTES 16-19, & 21 APPLICABLE ONLY TO SURFACE SYSTEMS 1, ALL INSTALLATION AND CONSTRUCTION TECHNIQUES SHALL CONFORM TO ALL STATE DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES, DIVISION OF WATER QUALITY" REGULATIONS, COUNTY CODES, AND STATE BOARD OF HEALTH SEWAGE HANDLING AND DISPOSAL REGULATIONS, PERTAINING TO ONSITE SEWAGE SYSTEMS AND THE PERMIT FOR THE SITE. 2. THE INSTALLATION OF THIS SYSTEM SHALL BE IN ACCORDANCE WITH SPECIFICATIONS AND PROCEDURES AS SUPPLIED BY THE MANUFACTURER OF THE EQUIPMENT. 3. ALL PVC PIPE AND FITTINGS SHALT_ BE SCHEDULE 40, TYPE 1, RATED FOR PRESSURE APPLICATIONS. ALL GLUED JOINTS SHALL BE CLEANED AND PRIMED WITH PURPLE (DYED) PVC. PRIMER PRIOR TO GLUING, 4. ALL CUTTING OF PVC PIPE, FLEXIBLE PVC, AND DRIPPER TUBING SHALL BE ACCOMPLISHED NTH PIPE CUTTERS APPROVED BY THE MANUFACTURER. NO SAWING OF PVC OR DRIPPER TUBING WILL BE ALLOWED. 5. ALL PVC PIPE, FLEXIBLE PVC, .AND DRIPPER TUBING IN THE WORK AREA SHALL HAVE THE ENDS COVERED WITH DUCT TAPE TO PREVENT CONSTRUCTION DEBRIS FROM ENTERING THE PIPE. PRIOR TO GLUING, ALL JOINTS SHALL BE INSPECTED FOR, AND CLEARED OF, AND CONSTRUCTION DEBRIS. 6. NO WET WEATHER INSTALLATION WILL BE ALLOWED. 7, LtL_AaTl,"Ty SOH' AI_L rADSE PL ACE ON THE DRAIN FIELD AREA OTHER THAN THE MINIMUM REQUIRED TO iNSTAL,L THE SYSTEM- DO NOT PARK EQUIPMENT, DRIVE LARGE EQUIPMENT OVER, OR STORE MATERIALS ON THE DRAIN FIELD SITE. 8. HORIZONTAL SPACING BETWEEN DRIPPER LINES SHALL BE AS SPECIFIED OR SHOWN. DRIPPER LINES SHALL BE PLACED ON CONTOUR 9. PRIOR TO STARTUP OF THE DRIP DISPOSAL SYSTEM, THE AIR RELEASE VALVES SHALL BE REMOVED AND EACH ZONE IN THE SYSTEM SHALL BE FLUSHED AS FOLLOWS: A.) USING AN APPROPRIATE LENGTH OF FLEXIBLE PVC PIPE WITH A MALE FITTING ATTACHED TO THE AIR RELEASE CONNECTION TO DIRECT THE FLUSHING 'HATER AWAY FROM THE CONSTRUCTION AREA; B) FLUSH THE ZONE 'MTH A VOLUME OF WATER (CLEAN WATER TO BE PROVIDED BY THE CONTRACTOR) EQUAL TO 1.5 TIMES THE VOLUME OF THE PIPES FROM THE CENTRAL UNIT TO THE AIR RELEASE VALVE; C) REPEAT THIS PROCEDURE FOR EACH ZONE (THE FLUSHING OF THE SYSTEM IS ACCOMPLISHED BY MANUAL OVERRIDE OF THE CONTROL PANEL BY THE MANUFACTURER OR ENGINEER). ITEM SEPTIC TANKS PUMP TANKS EQUIPMENT & CONTROLS FORCE MAINS & SUPPLY MANIFOLDS FIELDS MEDIA FILTER GENERAL NOTES: MAINTENANCE -SCHEDULE FREQUENCY TASK SEEDING SPECIFICATIONS _ _ APPLIES TO ALL DISTURBED AREAS OUTSIDE DRIPPER FIELD 3 - 4 MONTHS CHECK SOLIDS ACCUMULATION, IN/EXFILTRATiON, BAFFLE DAMAGE, BLOCKAGES. CHECK THE FILTER. SLUMNG MXTURE 3 - 5 YEARS PUMP SEPTAGE IF REQUIRED SPECIES RATE (LB/ ACRE) 3 - 4 MONTHS CH ECK SOLIDS ACCUMULATION, TALL FESCUE 10 SERICEA LESPEDEZA 30 PUMP OUT SOLIDS IF REQUIRED. KME LE PEDE[4 10 CHECK IN/EXFILTRATION, CHECK PFUSACOLA DAHIAGRA55 50 FOR PROPERLY OPERATING FLOATS. CHECK HIGH WATER ALARM SEEDING NOTES 1. AFTER SEPTEMBER 1 USE UNSCARIFIED SERICEA SEED. 3 - 4 MONTHS CHECK FLOAT CONTROLS & ALARMS, ^. 'WHERE A NEAT APPEARANCE IS DESIRED, OMIT SERICEA AND INCREASE KOBE TO 40 FOLLOW MANUFACTURER'S SERVICE LB/ ACRE. 3. OVER -SEED 50 LB/ACRE OF TALL FESCUE EACH FALL, UNTIL WELL ESTABLISHED. REQUIRDAENTS. 6 MONTHS CHECK FOR LEAKS & RE -MEASURE FOR NURSE PLANTS BETWEEN aPRIL 15 AND AUGUST 15, ADD 10 LB/ACRE GERMAN MIL 1 OR 15 LB ACRE FLOW IF NECESSARY. CHECK SUNDANGRASS PRIOR TO 1,(AY 1 OR AFTER AUGUST 15, ADD 40 LBL%ACRE RYE ( RAIN), EXPOSED PIPE, FALL IS BEST FOR TALL FESCUE AND LATE WINTER FOR LESPEDEZAS. OVERSEEDING OF KOBE LESPEDEZAS OVER THE FALL SEEDED TALI_ FESCUE 15 VERY EFFECTIVE. USE 3 - 4 MONTHS CONTROL VEGETATIVE GROWTH FOR UNHULLED BERMUDAGRASS SEED IN FALL, PROPER INSPECTIONS. CHECK FOR SOIL .AMENDMENTS EROSION, PONDING OF WATER, APPLY LIME AND FERTILIZER ACCORDING TO TESTS, OR APPLY 4.000 LB/ACRE GROUND SURFACING OF EFFLUENT. AGRiC1.10-URE LIMESTONE AND F,000 LB/ACRE 10-10-10 FERTILIZER. 6 MONTHS MEASURE FLOW BY TIMING DRAW MIJLCII. APPLY aG LE GRAIN Ti SUITABLE HASP STRAWNULCH; DOWN IN THE PROCESSING TANK._ (ACRE WITH L ROMN F{ULC711f+1G MATERIAL. ANCHOR fdUi.Cif Bti TACKIkG WITH ASPHALT, R4viNG. OR NETTING. M OR 'r TACKING CHECK FOR PONDING/CLOGGING. NETPNG r5 'I1iE PREFERR0 ANCHCIRING METHuD ON STEEP SLOPES. 12 MONTHS SAMPLE DISCHARGE WASTEWATER. MAINTENANCE REFERIlLIZE IN THE SECOND YEAR UNLESS GROWTH IS FULLY ADEQUATE. MAY BE MOWED DRAW LABORATORY SAMPLES AND ONCE OR TWICE A YEAR, BUT MOWING IS NOT NECESSARY. RESEED, FERTILIZE AND REPORT TO AGENCIES. PLILCH DAMAGED AREAS IMMEDIATELY, GENERAL NOTES: 10. IF EXISTING SEPTIC TANKS ARE USED, THEY SHALL BE PUMPED OUT BY A COMMERCIAL SEPTIC I. HOUSING AND OTHER STRUCTURES AS MIGHT BE SHOWN ON THESE PLANS ARE BASED UPON TANK CLEANER. AFTER THE TANK IS EMPTIED, IT SHALL BE RINSED, PUMPED, AND REFILLED WITH CLEAN WATER, DEBRIS IN THE SEPTIC TANK MUST BE KEPT TO A MINIMUM AS IT COULD CLOG THE INFORMATION AVAILABLE. LOCATION OF DWELLING AND STRUCTURES ARE SUBJECT TO CHANGE DISK FILTERS DURING STARTUP. DISK FILTERS ARE NOT BACK -FLUSHED ©USING STARTUP AND ANY DURING CONSTRUCTION. PUMPS, HEAD LOSS CALCULATIONS, ETC. MAY NEED TO BE RE-EVALUATED CLOGGING COULD CAUSE INCORRECT FLOW RATE READINGS FOR THE CONTROLLER. IF UTILIZED, IF ALTERATIONS TO SUCH LOCATIONS ARE REQUIRED. SEPTIC TANKS MUST BE WATERTIGHT- 11. A LEAKAGE TEST SHALL BE PERFORMED ON THE SEPTIC AND DOSING TANKS TO INSURE THAT 2. LAYOUT OF THE APPLICATION AREA IS BASED ON FIELD DELINEATION OF SOILS AREA PERFORMED ANY INFILTRATION/EXFILTRATION OCCURS AT A RATE THAT DOES NOT RESULT IN GREATER THAN Y2" BY SOIL & ENVIRONMENTAL CONSULTANTS, P.A. ANY CHANGE IN LAYOUT, BY THE SYSTEM INSTALLER, DROP IN WATER LEVEL IN A 24-HOUR PERIOD. OUTSIDE OF THIS AREA WILL NEED TO BE APPROVED BY THE SOILS CONSULTANT AND THE ENGINEER. 12. IF TREES ARE TO BE REMOVED FROM SITE, CUT STUMPS FLUSH WITH GROUND. REMOVE CUTTINGS BY HAND. 13. THE CONTRACTOR SHALL BE CERTIFIED TO INSTALL THIS TYPE OF SYSTEM BY THE MANUFACTURER AND SHALL_ HOLD A PRE -CONSTRUCTION MEETING WITH THE INDIVIDUALS RESPONSIBLE FOR THE SOIL EVALUATION, PERIr(FTTING AND INSPECTIONS, PRIOR TO SITE WORK BEGINNING, TO INSURE PROTECTION OF THE SITE CONDITIONS AND TO INSURE THAT SYSTEM IS INSTALLED ACCORDING TO THE DESIGN. 14. IF SITE CONDITIONS ARE DETERMINED TO REQUIRE THE INSTALLATION OF THE SYSTEM TO DEVIATE FROM TIME PLANS, ALL SITE WORK SHALL STOP IMMEDIATELY AND THE DEStGNZR SHALL BE NOTIFIED, ANY ONGOING WORK SHALL 13E AT THE SOLE RESPONSIBILITY OF THE CONTRACTOR. 15, OPERATION AND MAINTENANCE MANUAL IS TO BE PROVIDED AT JOB COMPLETION BY THE MANUFACTURER OR PRODUCT SUPPLIER. 16. A 50' BUFFER SHALL BE MAINTAINED BETWEEN THE DRIP IRRIGATION SITES AND THE PROPERTY LINES. 17. A 100' BUFFER SHALL BE MAINTAINED BETWEEN THE WASTEWATER SYSTEM (WETTED AREA, LINES, AND TREATMENT UNITS) AND ANY POTABLE DRINKING WATER WELLS. 18. A TWO -STRAND WIRE FENCE SHALT_ BE INSTALLED AROUND THE PERIMETER OF THE DRIP FIELD. 19. A 100' BUFFER SHALL BE MAINTAINED BETWEEN THE WASTEWATER SYSTEM WETTED AREA AND RESIDENCES UNDER SEPARATE OWNERSHIP. 20 THE .AUDIO AND VISUAL HIGH WATER ALARMS SHALL BE EXTERNAL TO .AN1' STRUCTURE. 21. A RAIN SENSOR (MINI -["LICK ii E3'r HUNTER INDUSTRIE5, INC., RAIN -CHECK 13)' RAiN81RD. OR EQUAL) SHALL BE INSTALLED NEAR THE APPLICATION AREA AND SHALL BE VARIED INTO THE SYSTEM CONTROL IN ACCC)RDANL'E WITH MANUFACTURER'S RECOMMENDATIONS AND IN ACCORDANCE WITH LOCAL ELECTRICAL COED REQUIREMENTS. 22, THE OUTDOOR CONTROL PANEL SHALL BE RATED NEMA 4X. 23. ALARMED FILTER SYSTEM IS OPTIONAL; HOWEVER, IF SELECTED, IT SHALL BE WIRED INTO THE CONTROL PANEL IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS AND IN ACCORDANCE WITH LOCAL ELECTRICAL CODE REQUIREMENTS. 24. DEPRESSIONS AND IRREGULARITIES IN THE APPLICATION AREA SHALL BE BRIDGED DURING CONS FRUCTION NTH SECTIONS OF SOLID LINE. THE POR11ONS OF SOLID LINE SHALL BE BURIED TO PROTECT AGAINST FREEZING. 3. THERE ARE NO KNOWN EXISTING WELLS, BUILDINGS, OR STRUCTURES WITHIN THE REQUIRED BUFFERS. 4. THERE ARE NO AREAS WITH THE APPLICATION AREA THAT ARE WITHIN THE 100 YEAR FLOODPLAIN. S. THE APPLICATION AREA SHALL BE MAINTAINED AS A WOODED OR "NATURAL" AREA SITE. 6. A LEAKAGE TEST SHALL BE PERFORMED ON ALL TANKS WHEREBY AN EXFILTRATION RATE SHALL NOT EXCEED A ONE-HALF INCH DROP IN A 24-HOUR PERIOD, AS OBSERVED AND CERTIFIED BY THE ENGINEER. 7. ALL PRESSURE PIPING SHALL BE SCH. 40 PVC AND PRESSURE TESTED TO AN INITIAL PRESSURE OF 55 PSI, AND A 5 PSI DROP IN A 2 HOUR PERIOD IS NOT EXCEEDED. 1. TWO SEPARATE PANELS AR REQUIRED. ONE SHALL BE FOR THE PRE- TREATMENT, AND ONE FOR THE DRIP DISPOSAL SYSTEM. 2. EACH CONTROL PANEL SHALL BE A NEMA 4X STYLE ENCLOSURE, AND AS FABRICATED BY THE COMPONENT SUPPLIER. 3. EACH CONTROL PANEL SHALL BE LOCATED AS CLOSE AS POSSIBLE TO THE COMPONENT IT SERVES, MOUNTED A MINIMUM OF 36 INCHES ABOVE GRADE, AND FASTENED SECURELY TO A POST OR BOARD. 4. THE INSTALLERS ELECTRICIAN SHALL MAKE THE INTERNAL PANEL CONNECTIONS FOR TE CONTROL CORDS (INPUT & OUTPUT, AND GROUNDING ROD). EACH CONTROL PANEL SHALL CONTAIN A WIRING SCHEMATIC IDENTIFYING THE INTERNAL AND EXTERNAL CONNECTIONS. 5. POWER CONTROL CIRCUITS TO THE PRETREATMENT CONTROL PANEL AS WELL AS THE DRIP DISPOSAL CONTROL PANEL SHALL REQUIRE TWO CIRCUITS; ONE FOR THE PUMP OR BLOWER; AND, ONE FOR THE ALARM AND CONTROL CIRCUITRY. 6. A MINIMUM CONDUIT SIZE OF 1 1/2 INCH SHALL BE USED FOR CONNECTIONS FROM PANEL TO PUMP TANKS- 7. EACH CONTROL PANEL SHALL BE PROPERLY GROUNDED BY A PROPERLY SIZED CONDUCTOR SECURELY FASTENED TO A GROUND ROD AT THE BASE OF THE CONTROL PANEL LOCATION. 8. OPEN CONDUIT ENDS SHALL HAVE REMOVABLE CLAY -TYPE DUCT SEAL EMBEDDED AT IT ENDS TO PREVENT GASSES AND MOISTURE FROM ENTERING THE CONTROL PANELS. DO NOT USE SILICONE OR EXPANED FOAM PRODUCTS- 9. THE PUMP POWER CORDS AND FLOAT SWITCH CABLES SHALL BE SUPPLIED IN A LENGTH SUITABLE SUCH THAT NO SPLICES WILL OCCUR WITHIN THE PUMP TANKS. IF A SPLICE MUST BE MADE, IT SHALL OCCUR MADE ABOVE GRADE IN A NEMA 4X JUNCTION BOX, WITH ALL CABLE CLEARLY LABELED. I O.ALARMS SHALL BE AUDIBLE AND VISIBLE. V) Lu F_ O Z z O F_ U_ LL V Lu - V) v V) w d m N N 00 u1 O Q Z OD Nv A V N J Z 2 U LLJ Q H N Q � O Y a U Z Z ug Lu ED Lu Z Z W < O Q LL N � LLII X LI7 E H� 2 U °� o d 0 o 00 0 •,-I O N (c)I �Lu W �N� 00 Z0 �_c U N � ��,•',� GA21qI/V. Q : SEAL r I 9810 'yL�lir� i R. 25, ALL SURFACE WATER SHALL BE DIVERTED FROM TANKS, RISERS, CONTAINERS, ETC., TO PREVENT CONTAMINATION, EROSION, AND/OR MALFUNCTION_