NCG500622_Compliance Evaluation Inspection_20211012

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
October 12, 2021
Wayne Whitney, Operations Manager
Purina Animal Nutrition, LLC
173 McNess Road
Statesville, North Carolina 28677
Subject: Compliance Evaluation Inspection
Purina Animal Nutrition, LLC
NPDES Permit No. NCG500622
Iredell County
Dear Mr. Whitney:
Enclosed is a copy of the Compliance Evaluation Inspection (CEI) Report for the inspection conducted at the subject
facility on October 5, 2021, by Mr. Wes Bell of this Office. Please inform the facility staff that oversee the environmental
affairs of our findings by forwarding a copy of the enclosed report.
Your consultant had previously submitted the Biocide/Chemical Treatment Worksheet-Form 101 for boiler
treatment chemicals (Nalco 1720, NexGuard 22352 and Tri-ACT 1820) currently being used. The Division's Aquatic
Toxicology Branch did not approve the discharge of these chemicals at the submitted dosage rates via correspondence dated
June 18, 2020. Mr. Bell was informed by on -site staff that the detention basin does not discharge and staff should continue
to ensure the basin does not discharge as long as the wastewater (boiler blowdown) contains the chemical composition of
the unapproved dosage rates. If you or your consultant would like to discuss options, please contact Ms. Cindy Moore,
Supervisor/Aquatic Toxicology Branch, by telephone at [phone], or email at [e-mail].
Should you have any questions concerning this report, please do not hesitate to contact Mr. Bell at [phone],
or via email at [e-mail].
Enclosure: Inspection Report
NORTH
Dep®rlmont of Environmental Onolit
Sincerely,
- DocuSigned by:
'-A14CC681AF27425...
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
North Carolina Department of Environmental Quality 1 Division of Water Resources
Mooresville Regional Office 1610 East Center Avenue, Suite 301 I Mooresville, North Carolina 28115
704.663.1699

United States Environmental Protection Agency
EPA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code
1 IN I 2 IL
21 1 1 1 1
NPDES yr/mo/day Inspection
I 3 I NCG500622 111 121 21/10/05 117
Type
1810I
I I 1 1 1
Inspector Fac Type
191 S I 2011
1 1 1 1 1 11 1 1 1 I I I 1 1 1 1 1 1 I I I I I
1 11
1 1 1 I 1 P6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
67I1.0 I 70I3 I 71IN I 72 I N I 73I 1 74 751
I I 1
I I I I I I 180
l
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES oermit Number)
Purina Animal Nutrition, LLC
173 McNess Rd
Statesville NC 28677
Entry Time/Date
12:25PM 21/10/05
Permit Effective Date
21/01/04
Exit Time/Date
01:15PM 21/10/05
Permit Expiration Date
25/11/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Bill Pendergrast/Maintenance Manager/704-924-5100 /
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Wayne Whitney,173 McNess Rd Statesville NC
286772742//704-924-5125/7048720298 Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran Facility Site Review Effluent/Receiving Wate Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s)
Wes Bell
of Inspector(s) Agency/Office/Phone and Fax Numbers Date
DocuSigned by: DWR/MRO WQ/704-663-1699 Ext.2192/ 10/12/2021
LIA), Geti
A61696D9OCC3437...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
W. Corey Basinger DWR/Division of Water Quality/704-235-2194/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
DocuSigned by:
10/12/2021
"-A14CC681AF27425...
Page# 1

NPDES yr/mo/day
31 NCG500622 111 121 21/10/05
I17
Inspection Type
18 [j
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page# 2

Permit: NCG500622
Inspection Date: 10/05/2021
Owner - Facility: Purina Animal Nutrition, LLC
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 ❑
application?
Is the facility as described in the permit? • ❑ ❑ ❑
# Are there any special conditions for the permit? ❑ ❑ • ❑
Is access to the plant site restricted to the general public? • ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? • ❑ ❑ ❑
Comment: The facility discharges boiler blowdown to a detention basin prior to discharge.
Chemical additives (Nalco 1720, NexGuard 22352 and Tri-Act 1820) are added to the
boiler system.
The last compliance evaluation inspection at this facility was performed by DWR staff
on 12/21/17.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? • ❑ ❑ ❑
Is all required information readily available, complete and current? • ❑ ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)? • ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs? ❑ ❑ • ❑
Is the chain -of -custody complete? • ❑ ❑ ❑
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 DMRs complete: do they include all permit parameters? ❑ ❑ • ❑
Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ • ❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified ❑ ❑ • ❑
operator on each shift?
Is the ORC visitation log available and current? ❑ ❑ • ❑
Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ • ❑
Is the backup operator certified at one grade less or greater than the facility ❑ ❑ • ❑
classification?
Is a copy of the current NPDES permit available on site? • ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review? ❑ ❑ • ❑
Comment: The records reviewed during the inspection were organized and well maintained.
Page# 3

Permit: NCG500622
Inspection Date: 10/05/2021
Owner - Facility: Purina Animal Nutrition, LLC
Inspection Type: Compliance Evaluation
Laboratory Yes No NA NE
Are field parameters performed by certified personnel or laboratory? • ❑ ❑ ❑
Are all other parameters(excluding field parameters) performed by a certified lab? • ❑ ❑ ❑
# Is the facility using a contract lab? ■ ❑ ❑ ❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 ❑ ❑ ■ ❑
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ • ❑
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ • ❑
Comment: Statesville Analytical Holdings, LLC has been contracted to perform analyses.
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? ❑ ❑ • ❑
Is sample collected below all treatment units? ❑ ❑ • ❑
Is proper volume collected? ❑ ❑ ■ ❑
Is the tubing clean? ❑ ❑ • ❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 ❑ ❑ • ❑
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type ❑ ❑ • ❑
representative)?
Comment: The facility has not discharged; however, samples have been collected from the
detention basin for analyses.
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, ❑ ❑ ■ ❑
and sampling location)?
Comment: The non -contact cooling water would be discharged into a stormwater ditch; therefore,
no instream monitoring is required (per Permit).
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 DEMO
Solids, pH, DO, Sludge Judge, and other that are applicable?
Page# 4

Permit: NCG500622
Inspection Date: 10/05/2021
Owner - Facility: Purina Animal Nutrition, LLC
Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Comment: Boiler blowdown is discharged into a tank and pumped into an earthen detention basin.
The detention basin had been cleaned out approximately one month ago. According
to on -site staff, the detention basin does not discharge.
The facility continues to use Nalco 1720, NexGuard 22352 and Tri-ACT 1820. These
chemical additives were not approved to be discharged at their listed dosage rates per
Aquatic Toxicity Branches' evaluation/memo dated 6/18/2020. The facility staff must
ensure that no discharges occur from the detention as long as these chemical
additives are present in the wastewater/detention basin.
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ❑ ❑ • ❑
Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ • ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ • ❑
Comment: No discharges were observed during the inspection. The water level in the detention
basin was several feet below the discharge outlet.
Page# 5