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HomeMy WebLinkAboutNCG550246_Report_19920923 REGOVED cc: Permits and Engineering (Mack Wiggins) SEP 2 3 1992 Technical Support Branch County Health Dept.Central Files TECHNICAL SUPPORT BRANCH WSRO Date September 18, 1992 �} NPDES STAFF REPORT AND RECOMMENDATIONS 0 3_o 1 _o..1 County Davidson NPDES Permit No. NC0057550 NCG.5soZ44, P1e criTS PART I - GENERAL INFORMATION 1. Facility and Address: Mailing Address: Dr. Thomas E. Lauer, Residence 624 Quaker Lane Route 2 , Box 497 Suite A-100 High Point, N.C. 27265 High Point, N.C. 27262 2 . Date of Investigation: September 16, 1992 3 . Report Prepared by: Mike Mickey, Environmental Tech V. 4 . Persons Contacted and Telephone Number: Dr. Thomas Lauer, Ph (919) 887-8792 5. Directions to Site: Take Hwy 109 south out of Winston-Salem and then turn left onto Old Greensboro Road (SR 1756) at Ledford Middle School. The Lauer SFR is located on the left 0 . 9 mile east of Mock Road (SR 1755) . The house is not visible from the road. Two large grey steel gates are on either side of the driveway. 6. Discharge Point(s) - List for all discharge points Latitude: 35° 57 ' 58" Longitude: 800 06 08 " Attach a USGS Map Extract and indicated treatment plant site and discharge point on map. USGS Quad No. D18NE or USGS Quad Name High Point West 7 . Size (land available for expansion and upgrading) : The lot consists of approximately 5 acres and contains adequate space for upgrading. 8 . Topography (relationship to flood plain included) : The house is located on a narrow ridge sixty feet above the flood plain and 100 yards from Abbotts Creek. . 9. Location of nearest dwelling: There are no dwellings within a 1000 ft. Please note that Mr. Gary McClellan holds NPDES permit No. NC0057568 (not built) for discharge into Abbotts Creek from an adjoining lot just downstream from Dr. Lauer. 10. Receiving stream or affected surface waters: Abbotts Creek a. Classification: WS-III b. River Basin and Subbasin No. : Yad-07 c. Describe receiving stream features and pertinent downstream uses: The drinking water reservoir, Lake Thom-A-Lex is located approximately 5 miles downstream. The Willow Creek WWTP (NC0034452 , 0. 08 MGD) discharges into Abbotts Creek 1000 ft. above Mr. Lauer's outfall. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. Type of wastewater: 100% Domestic a. Volume of Wastewater: 600 GPD (Design Capacity) (Four bedroom SFR) b. Types and quantities of industrial wastewater: NA c. Prevalent toxic constituents in wastewater: NA d. Pretreatment Program (POTWs only) : NA 2 . Production rates (industrial discharges only) in pounds per day: NA 3 . Description of industrial process (for industries only) and applicable CFR Part and Subpart: NA 4 . Type of treatment (specify whether proposed or existing) : The existing system consi2ts of a 1, 000 gallon septic tank, distribution box, 522 ft primary subsurface sandfilter, 260 ft secondary subsurface sandfilter, tablet chlorinator, 800 gallon contact tank and discharge line to Abbotts Creek. 5. Sludge handling and disposal scheme: Sludge should be removed from the septic tank by licensed haulers for disposal in the nearest municipal WWTP. 6. Treatment plant classification: (attach completed rating sheet) NA for SFR 1 7 . SIC Code(s) 4952 Wastewater ) Primary Code(s) 04 Main Treatment Unit Code: 4 5 0 X 7 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grants Funds (municipals only) ? NA 2 . Special monitoring requests: NA 3 . Additional effluent limits requests: NA 4 . Other: PART IV - EVALUATION AND RECOMMENDATIONS The dual subsurface sandfilter system for Dr. Lauer's residence was installed on 6-17-88. Observations of the effluent pipe on 9/16/92 revealed that the system was functioning reissuance. adequately. WSRO recommends q Y NaQ Signature of repor ;preparer Water Quality Regional Supervisor Date 097'30' 1 580 ^.E. 581 . 582 5' 583 N. o S N Thomas E. Lauer, M.D. , Residence 2: I NPDES Permit No. NC0057550 , �j' % -- Discharges into Abbotts Creek, Class , , / - — 11 • , 9 �\ "WS-III" waters. - o '�� " • I.;; • � : Locathd off of Old Greensboro Road(SR1756) _ • ^I I13983 - Davidson County D-18-NE ;; . OL• )„ �� ,, II• -��, 826 - - / — -\z....\k ^ '.. A f ' o dbw Creek �� , o —' �� � y� s �, �, ,ou❑ Club . . �` 756' r�--� e, � try - • 7 = cy - ^� • _ I ./.1 ---, '—____:— '—/ lir Ps /„........../ . i�, '. edam" _ (..i.,),r, , „, _ i ::)> >' = , _so � / / ' • Bz7. 8 r �' • /l _ `eR „• f'S /, '' ' off/ p, � = < 3980 ,o`y / Q\ " g00 9 Q ‘,CO / \ 11.'l 1 — P //SEA ��� 30 755 • _ ti _ 115J . �1 _ '• 800 � . . / BOO o A� ki e o , .:I �87 0 1 0, J N •• • % ' „ _ f Q1---� - (.� _ _ • 72B '--- —, he�dford C ..y t Q /�-i / l� n -�sc 718 rhS. i, ~ • n / p O • 3e78 , itl% i1\/. . Discharge Point i .. )- -'81 1 •.''( ;\, • _ ,,,,,r,.(`-'1-/,(,,/. '\•;\'.\1. .'- 747 — %_,i / - , 'M,, d�`>'�nt '+ ;,: ;` , I).1N4 Qf7: ! - \•. e-cA...,), A. (1) . EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final During the period beginning on the effective date of the permit and lasting until expiration, the authorized to discharge from outfall(s) serial number(s) 001. Such discharges shall be limited and rronitto by the permittee as specified below: ' Effluent Characteristics Discharge Limitations ) Monitoring Requirements Kg/day (lbs/da Y Other Units (Specify) , Measurement Sample *S ] Monthly Avg. Weekly Avg. Monthly Avg. Weekly Avg. Frequency nf Flow Locate BOD 5Da 20 600 GPD Y' C 30.0 mg/1 45.0 1 Total Suspended Residue m NH3 as N 30.0 mg/1 45.0 mg// 1 Fecal Coliform (geometric mean) 1000.0/100ml 2000.0/100m1 Residual Chlorine Temperature The chlorinator shall be inspected weekly to insure there is an ample supply of chlorine tablets for continuous disinfection of the effluent. • The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. There shall be no discharge of floating solids or visible foam in other than trace amounts. • • NC0057550