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HomeMy WebLinkAboutWQ0044547_Staff Report_20230809 DocuSign Envelope ID:47CF6000-6A13-4717-9EAD-72F85DF2E1 E4 State of North Carolina Division of Water Resources Water Quality Regional Operations Section Environmental Staff Report Quality To: ❑NPDES Unit®Non-Discharge Unit Application No.: NC/WQ0044547 Attn: Cord Anthony Facility Name: 6713 Moon Lake Lane SFR-Princess Holdings LLC County: Wake From: Dorothy M Robson Raleigh Regional Office I. GENERAL AND SITE VISIT INFORMATION 1. Was a site visit conducted? ❑ Yes or®No a. Date of site visit: TBD b. Site visit conducted by: c. Inspection report attached? ❑Yes or❑No d. Person contacted: and their contact information: xxx ext. e. Driving directions: N/A 2. Discharge Point(s): N/A Latitude: Longitude: Latitude: Longitude: 3. Receiving stream or affected surface waters: N/A Classification: River Basin and Sub-basin No. Describe receiving stream features and pertinent downstream uses: II. PROPOSED FACILITIES: NEW APPLICATIONS 1. Facility Classification: SFR Description: Surface dispersal by means of drip irrigation system is limited to 480 gallons per day. The system shall consist 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. 34 acre drip irrigation area with a minimum of 4,025 linear feet(LF)of drip line, 2,012 emitters, a rainfall sensor to prevent irrigation during inclement weather, and all associated piping valves, controls, and appurtenances Proposed flow: 480 gpd Current permitted flow:NA 2. Are the new treatment facilities adequate for the type of waste and disposal system? ® Yes or❑No If no, explain: 3. Are site conditions(soils, depth to water table, etc.)consistent with the submitted reports? ❑ Yes ❑No ❑N/A If no,please explain: Still needs to be assessed. FORM: WQROSSR04-14 Page 1 of DocuSign Envelope ID:47CF6000-6A13-4717-9EAD-72F85DF2E1E4 4. Do the plans and site map represent the actual site(property lines,wells, etc.)? ❑ Yes ❑No ❑N/A If no,please explain: 5. Is the proposed residuals management plan adequate? ® Yes ❑No ❑N/A If no,please explain: 6. Are the proposed application rates (e.g.,hydraulic,nutrient) acceptable? ❑ Yes ❑No ❑ N/A If no,please explain: 7. Are there any setback conflicts for proposed treatment, storage and disposal sites? ® Yes or❑ No If yes, attach a map showing conflict areas. 8. Is the proposed or existing groundwater monitoring program adequate? ❑ Yes ❑No ®N/A If no, explain and recommend any changes to the groundwater monitoring program: 9. For residuals,will seasonal or other restrictions be required? ❑ Yes ®No ❑N/A If yes, attach list of sites with restrictions(Certification B) Describe the residuals handling and utilization scheme: 10. Possible toxic impacts to surface waters: NA 11. Pretreatment Program(POTWs only): NA III.EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS ORC, cat C-ate ceftiriC-ate r: 2. Are the design,maintenanee and operation of the tfeatment faeilities adequate for-the type of waste and disposal system? n Yes or- if He please o ,.1,,;fi. Dese iptior of existing fae lifies: Proposed flow: Explain affything obsetwed dur-ing the site visit that needs to be addressed by the pei:mit, E)r-that may be impeft—ant , , e" NI- if no,please 3. Are the site eenditions (e.g., sails,tepegr-aphy, depth to watef table, ete.) maintained appfopfia4ely afid adeEtuatel� 4. Has the site ehanged in any way that may affeet the peftnit(e.g., drainage added, new wells inside the compliance >,",,, d .,deve ors et )? n Yes "r n 1,T" if yes,please e"Iaia.: 5. is the r-esidualsmanagement if no,please explain: ., hydfaulie, nutfient) still aeeeptable? El Yes Of El No if no,please explaiw 7. is the existing groundwater-, ,ninon ade ,ate? n Yes El NE)if no, e"lain and r-eeetmnefid any ehanges to the gr-euadw4er-monitoring • areas.8. Are there a*y sethaek eenfliets for-existing tfeatment, storage a-ad disposal sites? D Yes or-EIN-0 if yes, attaeh a map showing eenfliet 9. is the desef4ption of the f4eilities as"#ea in the existing peffRit e0ffeet? El Yes or- if He,please explain: FORM: WQROSSR 04-14 Page 2 of 4 DocuSign Envelope ID:47CF6000-6A13-4717-9EAD-72F85DF2E1E4 10. Were r;tefi ,ells r o.l . nstr-tiete and 1,,e T.ted? n Yes n NO n /� T 11. A fe the n;tefin well , ,,,-din.tes , Eleet;n BIMS? n Yes No n T. if ne,please eemplete the following(ex-pand table if neeessafy): MonitoFing Latitude Leftg e Pr-&vide input to help the pefmit wr-itef evaltt4e any r-e"ests for-r-edueed monitoring, if 12. Has a review of all self monitoring data been condueted(e.g.,DN4R,NDN4R,NDAR, GW)? [] Yes or No 13. Are there any pefmit ehanges needed in order-to addfess ongoing BIMS violations? D Yes oF D No if yes,please explain.: 14. Cheek all tha4 apply.: Please e"lain and a4aeh a"doettments that fna-y help elafify answer-,leon*nents (i.e.,NON',NOD, ete.) if the f4eility has had eemplianee problems "r-ing the pefmit eyele,please explain the st4us. Has the RO been Lease explaiw — 15. Are ther-p.g 'lated to eamplianee/enfer-eement that should be r-esolved before issuing this peffnit? n Yes n ,, n,.T A if yes,please • 16. Possible texim,impacts t s„-face w tors• IV. REGIONAL OFFICE RECOMMENDATIONS 1. Do you foresee any problems with issuance/renewal of this permit? ® Yes or❑No If yes,please explain: See next comment 2. List any items that you would like the Non-Discharge Unit Central Office to obtain through an additional information request: Item Reason Form SFRWWIS 06- Please answer question 4 and 18 16.Sec.V. Drainage Coefficient A drainage coefficient of 9.5%is proposed. Please explain how you arrived at this number. Page 1 of Engineering Calculations Summary page. A 20%flow reduction is Conceptual Basis Design requested to reduce the flow from 600 gpd to 480 gpd. However,no documentation was provided. Map 3 of&,Enlarged Field Plan Map indicates the instantaneous rate of 0.14 Correct Instantaneous Rate in/hr. This number does not match with previous rates indicated in the report. Please correct in report or on the map. FORM: WQROSSR 04-14 Page 3 of 4 DocuSign Envelope ID:47CF6000-6A13-4717-9EAD-72F85DF2E1E4 3. List specific permit conditions recommended to be removed from the permit when issued: Condition Reason 4. List specific special conditions or compliance schedules recommended to be included in the permit when issued: Condition Reason 5. Recommendation: ® Hold,pending receipt and review of additional information by regional office ❑ Hold,pending review of draft permit by regional office ❑ Issue upon receipt of needed additional information ❑ Issue ❑ Deny(Please state reasons: ) 6. Signature of report preparer: DocuSigned by: uAvi,SSa, f. ha.v,ttit L Signature of regional supervisor: R,g16F RAR32144F Date: 8/9/2023 V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS FORM: WQROSSR 04-14 Page 4 of 4