NC0023884_Compliance Evaluation Inspection_20160628

-PAT MCCRORY
A
Governor
yd
DONALD R. VAN DER VAART
Secretary
WaterResources
ENVIRONMENTAL QUALITY S. JAY ZIMMERMAN
Director
June 28, 2016
RECEIVEDUDEUDWR
Ms. Sonja Basinger JUL 0 7 2016
Environmental Services Manger
City of Salisbury Whter Quality
1915 Grubb Ferry Road Permitting Section
Salisbury, North Carolina 28144
SUBJECT: Compliance Evaluation Inspection
Grant Creek/Town Creek WWTP
NPDES Permit NCO023884
Rowan County, NC
Dear Ms. Basinger:
On June 22, 2016, Roberto Scheller of this Office conducted an inspection at the subject
facility. This inspection was conducted as a Compliance Evaluation Inspection (CEI)to
insure compliance with permit requirements and conditions. At the time of inspection
facility appeared to be well maintained and operated. We wish to thank you and
operating staff for your assistance regarding the inspection. A copy of this inspection will
be forwarded to the facility's Operator-in-Responsible-Charge (ORC).
The enclosed report should be self-explanatory; however, should you have any
questions, please do not hesitate to contact myself of Roberto Scheller at (704) 235-
2204 or [e-mail].
Si cerely,
c6iL W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosure: Inspection Report
cc: Wastewater Branch
MSC 1617—Central files basement
File
State of North Carolina I Environmental Quality I Water Resources I Water Qaality Regional Operations
Mooresville Regional Office)610 East Center Avenue,Suite 301 Mooresville,North Carolina 28115
704 663 1699

� .
United States Environmental Protection Agency Form Approved.
EPA Washington,D.C.20460 OMB No.2040-0057
Water Compliance Inspection Report Approval expires 8-31-98
Section A:National Data System Cdding(Le_PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 2 15 1 -3 I NC0023884 I11 ) 12 16/06/22 17 18 i C 19 l G i 201 I
211111111111 11111111111111111II1111111111111 �6
Inspection Work Days Facility Self-Monitoring Evaluation Rating 131 QA Reserved--
67 7010 I 71 I LIl72 i N i 731 I 174 751 I I I I I I 180
L_1 Section B:FacilityData
LJ
Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also include Entry Time/Date Permit Effective Date
POTW name and NPDES permit Number) 09:59AM 16/06/22 14/12/01
City of Salisbury WWTP
1915 Grubb Ferry Rd Exit Time/Date Permit Expiration Date
Salisbury NC 281444261 01:53PM 16/06/22 19/06/30
Name(s)of Onsite Representative(s)frities(s)/Phone and Fax Number(s) Other Facility Data
Name,Address of Responsible Official/Title/Phone and Fax Number
Contacted
Sonja Basinger,1915 Grubb Ferry Rd Salisbury NC 281444261/Env.Services
Manager/704-63875375/ No
Section C:Areas Evaluated During Inspection(Check only those areas evaluated)
Permit Flow Measurement Operations&Maintenance Records/Reports
Self-Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory
Section D:Summary of Finding/Comments_(Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Signature(s)of Inspector(s) Agency/Office/Phone and Fax Numbers Date
r
bent Sch�r � MRO WQ//252-946-6481/ ,
Signatureof Management A R ie er Agency/Office/Phone and Fax Numbers Date
W.Corey Basinger MRO WQ//704-235-2194/ 7 ,b(o
EPA Form 3560-3.(Rev 9-94)Previous editions are obsolete.
Page# 1

NPDES yr/mo/day Inspection Type 1
31 NCO023884 I11 12 16/06/22 17 18 ICI
Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
Page# 2

1
Permit: NCO023884 Owner-Facility: City of Salisbury WWTP
Inspection Date: 06/22/2016 Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ M ❑
application?
Is the facility as described in the permit? M ❑ ❑ ❑
#Are there any special conditions for the permit? M ❑ ❑ ❑
Is access to the plant site restricted to the general public? M ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑
Comment: Current permit expires on June 30, 2019.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? M ❑ ❑ ❑
Is all required information readily available, complete and current? M ❑ ❑ ❑
Are all records maintained for 3 years(lab. reg.required 5 years)? E ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ -❑
Is the chain-of-custody complete? 0 ❑ ❑ ❑
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are MRS complete:do they include all permit parameters? E ❑ ❑ ❑
Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑
(If the facility is=or>5 MGD permitted flow)Do they operate 24/7 with a certified operator M ❑ ❑ ❑
on each shift?
Is the ORC visitation log available and current? 0 ❑ ❑ ❑
Is the ORC certified at grade equal to or higher than the facility classification? E ❑ ❑ ❑
Is the backup operator certified at one grade less or greater than the facility classification? M ❑ ❑ ❑
Is a copy of the current NPDES permit available on site? M ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ ❑
Comment: Records and reports were well organizec and maintained.
Influent Sampling Yes No NA NE
#Is composite sampling flow proportional? 0 ❑ ❑ ❑
Is sample collected above side streams? M ❑ ❑ ❑
Page# 3

Permit NC00236i34 Owner-Facility: City of Salisbury WWTP '
inspection Date: 06/2212016 Inspection Type: Compliance Evaluation
Influent Sampling Yes No NA NE
Is proper volume collected? 0 ❑ ❑ ❑
Is the tubing clean? M ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Is sampling performed according to the permit? 0 ❑ ❑ ❑
Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? 0 .❑ ❑ ❑
Is sample collected below all treatment units? ❑ ❑ ❑
Is proper volume collected? ❑ , ❑ ❑
Is the tubing clean? E ❑ "❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees M ❑ ❑ ❑
Celsius)?
Is the facility sampling performed as required by the permit(frequency,sampling type 0 ❑ ❑ ❑
representative)?
Comment:
Operations&Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ ❑ ❑
Does the facility analyze process control parameters,for ex:MLSS, MCRT,Settleable N ❑ ❑ ❑
Solids,pH,DO, Sludge Judge,and other that are applicable?
Comment: Inspection of both trains of UWVfP Grants Creek and Town Creek.
Bar Screens Yes-No NA NE
Type of bar screen
a.Manual ❑
b.Mechanical
Are the bars adequately screening debris? N ❑ ❑
Is the screen free of excessive debris? ❑ ❑ ❑
Is disposal of screening in compliance? E ❑ ❑ 1-1 .
Is the unit in good condition? ❑ ❑ ❑
Comment:
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r
Permit: NG0023884 Owner-Facility: City of Salisbury WWrP
Inspection Data: 06/22/2016 Inspection Type: Compliance Evaluation
Grit Removal Yes No NA NE
Type of grit removal
a.Manual ❑
b.Mechanical
Is the grit.free of excessive organic matter? N ❑ ❑ ❑
Is the grit free of excessive odor? 0 ❑ ❑ ❑
#Is disposal of grit in compliance? N ❑ ❑ ❑
Comment:
Primary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑
Is the site free of excessive buildup of solids in center well of circular clarifier? . ❑ .❑ ❑
Are weirs level? N ❑ -❑ ❑
Is the site free of weir blockage? A ❑ ❑ ❑
Is the site free of evidence of short-circuiting? 0 ❑ '❑ ❑
Is scum removal adequate? N ❑ ❑ ❑
Is the site free of excessive floating sludge? N ❑ ❑ ❑
Is the drive unit operational? E ❑ ❑ ❑
Is the sludge blanket level acceptable? ❑ ❑ ❑ N
Is the sludge blanket level acceptable?(Approximately'/<of the sidewall depth) ❑ ❑ ❑ 0
Comment:
Trickling Filter Yes No NA•NE
Is the filter free of ponding? N ❑ ❑ ❑
Is the filter free of leaks at the center column-of filter's distribution arms? ❑ ❑ ❑
Is the distribution of flow even from the distribution arms? ❑ ❑ ❑
Is the filter free of uneven or discolored growth? 0 ❑ ❑ ❑
Is the filter free of sloughing of excessive growth? E ❑ ❑ ❑
Are the filter's distribution arms orifices free of clogging? E ❑ • ❑ ❑
Is the filter free of excessive filter flies,worms or snails? 0 ❑ ❑ ❑
Comment:
Aeration Basins Yes No NA-NE
Mode of operation Ext.Air
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1
Permit: NCO023884 Owner-Facility: City of Salisbury W WTP
Inspection Date: 06/22/2016 Inspection Type: Compliance Evaluation
Aeration Basins Yes No NA NE
Type of aeration system Surface
Is the basin free of dead spots? 0 ❑ ❑ ❑
Are surface aerators and mixers operational? M ❑ ❑ ❑
Are the diffusers operational? ❑ ❑ N .❑
Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑
Does the foam cover less than 25%of the basin's surface? 0 ❑ ❑ ❑
Is the DO level acceptable? ❑ ❑ ❑ 0
Is the DO level acceptable?(1.0 to 3.0 mg/1) 0 ❑ ❑ ❑
Comment:
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater?. N ❑ ❑ ❑
Is the site free of excessive buildup of solids in center well of circular clarifier? M• ❑ ❑ ❑
Are weirs level? N ❑ ❑ ❑
Is the site free of weir blockage? N ❑ ❑ ❑
Is the site free of evidence of short-circuiting? M. ❑ ❑ ❑
Is,scum removal adequate? •0 ❑ ❑ ❑
Is the'site free of excessive floating sludge? M ❑ ❑ ❑
Is the drive unit operational? -0 ❑ ❑ ❑
Is the return rate acceptable(low turbulence)? ❑ ❑ ❑
Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑
Is the sludge blanket level acceptable?(Approximately%of the sidewall depth) ❑ ❑ ❑ •M
Comment:
Pumps-RAS WAS Yes No NA NE
Are pumps in place? 0 ❑ ❑ ❑
Are pumps operational? N ❑ ❑ ❑
Are there:adequate spare parts and supplies on site? M ❑ ❑ ❑
Comment:
Chemical Feed Yes No NA NE
Is containment adequate? E ❑ .❑. ❑
Is storage adequate? M ❑ ❑ ❑
Page# 6

Y
Permit: NC0023884 Owner-Facility: City of Salisbury W WTP
Inspection Date: 06/22/2016 Inspection Type: Compliance Evaluation
Chemical Feed Yes No NA NE
Are backup pumps available? M ❑ ❑ ❑
Is the site free of excessive leaking? 0 ❑ ❑ ❑
-Comment:' Eve Wash station should be clearly marked on outside of chemical feed buildings.
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant? 0 ❑ - ❑ ❑
(Sodium Hypochlorite)Is pump feed system operational? E• ❑ ❑ ❑
Is bulk storage tank,containment area adequate?(free of leaks/open drains) ❑' ❑ ❑
Is the level of chlorine residual acceptable? ❑ '❑ ❑
Is the contact chamber free of growth,or sludge buildup? •❑ ' ❑ ❑
Is there chlorine residual prior to de-chlorination? 0 ❑ ❑ ❑
Comment:
De-chlorination Yes No NA NE
Type of system? Liquid
Is the feed ratio proportional to chlorine amount(1 to 1)? 0 ❑ ❑ ❑
Is storage appropriate for cylinders? ❑ ❑ M ❑
#Is de-chlorination substance stored away from chlorine containers? M ❑ ❑ ❑
Comment:
Are the tablets the proper size and type? ❑ ❑ M ❑
Are tablet de-chlorinators operational? ❑ ❑ 0 ❑
Number of tubes in use?
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ ❑ 0
If effluent (diffuser pipes are required) are they operating properly? 0 ❑ ❑ ❑
Comment:
Aerobic Digester Yes No NA NE
Is the capacity adequate? 0 ❑ ❑ ❑
Is the mixing adequate? 0, ❑ - ❑ ❑
Page# 7

r
Permit: NC0023884 Owner-Facility: City of Salisbury WVVrP
Inspection Date: 06/22/2016 Inspection Type: Compliance Evaluation
Aerobic Digester Yes No NA NE
Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑
#Is the odor acceptable? ❑ ❑ ❑
#Is tankage available for properly waste sludge? M ❑ ❑ ❑
Comment:
Standby Power Yes No NA NE
Is automatically activated-standby power available? M ❑ ❑ ❑
Is the generator tested by interrupting primary power source? 0 ❑ ❑ ❑
Is the generator tested under load? 0 ❑ ❑ ❑
Was generator tested&operational during the inspection? ❑ ❑ ❑ N
Do the generator(s)have adequate capacity to operate the entire wastewater site? -0 ❑ ❑ ❑
Is there an emergency agreement with a fuel vendor for extended run on back-up power? M ❑ ❑ ❑
Is the generator fuel level monitored? 0 ❑ ❑ ❑
Comment:
Page# 8