NC0045161_Compliance Evaluation Inspection_20171024

s
Water Resources
October 24, 2017
Jay Fuller
Alamance -Burlington School System
1732 Vaughn Road
Burlington, NC 27217
Subject: Compliance Evaluation Inspection Report
NPDES Permit NCO045161
Alta mahaw-Ossipee Elementary School WWTP, Alamance County
Dear Mr. Fuller:
ROY COOPER
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MICHAEL S. BEGAN
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S, JAY ZIMMERMAN
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NOV 01 2017
Water Quality
Permitting Section
On October 18, 2017, Paul DiMatteo of the Division of Water Resources ("Division"), Winston-Salem
Regional Office conducted a Compliance Evaluation Inspection of the above referenced wastewater treatment
system. Matthew Smith, Operator in Responsible Charge (ORC), was present for the inspection. An inspection
summary follows and an inspection report is attached for your records.
Site Review
1. Permit
The current permit became effective on July 1, 2016 and expires on April 30, 2021. A copy of the
current permit was available for review. Permitted components include a bar screen, aeration
basin, secondary clarifier, and UV disinfection, with final disposal to the Haw River.
2. Facility Site Review
The facility was as described in the permit. Access to the site is restricted by a chain link fence.
Solids are raked from the bar screen, dried in a basket set on top of the screen, and disposed of in
the school dumpster. Grit is removed from the bar screening box periodically. Two blowers in the
aeration basin are set on a timer so that each one runs on a 12 hour shift.
The area of the bar screen is enclosed by a separate fence from the rest of the treatment plant. It
was noted that a lock was not present on this fence. The ORC said that a lock would have to be
provided by school maintenance staff. Mr. DiMatteo suggests evaluating whether locked, restricted
access would be appropriate at this location.
State of North Carolina I Environmental Quality I Water Resources

3. Operation and Maintenance
The operator or a properly designated backup visits the site as required. Visitation logs were
current and available_ during the inspection. Mr. Smith said that school maintenance staff turned off
the UV alarm because it kept going off after hours. However, lights on the control panel indicated
that all bulbs were operational and the ORC said the bulbs are cleaned regularly. In case of a failure
of the UV system, Mr. Smith said he could add chlorine tablets to the clarifier before the weir, but
the contact time would not be very long because a traditional contact chamber is not available.
The ORC also stated that soda ash is added to the aeration basin to control pH and dog food is
added during the summer months to support the microbial population.
4. Flow Measurement
Flow is estimated using data from the potable water meter.
Effluent/Receiving Waters
The effluent is discharged into the Haw River in the Cape Fear River Basin. The outfall was
accessible during the inspection, and a slight discharge was visible. The stream did not appear to be
negatively impacted.
Documentation Review
6. Records/Reports
Discharge Monitoring Reports (DMRs) and lab data are maintained according to the permit. DMRs
include all permit parameters. Copies of DMRs, operator visitation logs, lab reports and Chain -of -
Custody forms were available for review during the inspection.
7. Self -Monitoring Program
A review of self-monitoring data from January, 2016 through September, 2017 showed no
violations, and a comparison of submitted DMR data with available laboratory documentation
revealed no discrepancies or issues.
8. Laboratory
All parameters are analyzed by Research & Analytical Laboratories, Certification #34. ORC measures
pH and temperature at the facility. All other samples are collected at the end of the UV trough by
the ORC and analyzed at the main laboratory.
Temperature is measured using the digital thermometer on the Dissolved Oxygen meter. The
thermometer was last calibrated on October 12, 2017. pH meter pre -run calibration and sampling
procedures appeared acceptable.
9. Sludge Handling Disposal
Sludge is removed from the aeration basin approximately every month by Jenkins Waste
Management. The most recent removals occurred in May, February, and January, 2017. Invoices
for sludge removal is maintained on site.
State of North Carolina I Environmental Quality I Water Resources
450 West Hanes Mill Road. Suite 300. Winston Salem. NC 27105

1
If you should have any questions, please do not hesitate to contact Paul DiMatteo at [phone] or
our office at [phone].
Sincerely,
e 60
ria
/Sherri V. Knight, P.E., Regional Supervisor
Water Quality Regional Operations Section
Winston-Salem Regional Office
Division of Water Resources, NCDEQ
Enclosures — Inspection Report and Summary
CC: Matthew Smith — by email
WQS Winston-Salem Regional Office - Enforcement File
NPDES Compliance/Enforcement Unit - Enforcement File
Central Files
State of North Carolina I Environmental Quality I Water Resources
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United States Environmental Protection Agency
Form Approved
EPA Washrigton, D C 20460
OMB No 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A National Data System Coding (I a, PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector
Fac Type
1 E 2 15 I 3 I NCO045161 I11 12 17/10/16 17 18 i i i 19 I i i
201 I
211 1 1 1 I I I I I I 11 I 1 I I I I I I I I I I I I I I I I I I I I I 11 l l
l 1 1J6
Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA ------Reserved------
67 70 71 I I 72 I �, I 73 I 174 75III
LJ I I I
80
Section B. Facility Data
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 30AM 17/10/18
16/07/01
Altamahaw/Ossipee Elementary School
2832 NC Hwy 87 N
Exit Time/Date
Permit Expiration Date
Elon College NC 27244
11 15AM 17/10/18
21/04/30
Name(s) of Onsite Representative(s)/Tities(s)/Phone and Fax Number(s)
Other Facility Data
///
Matthew P Smith/ORC/336-414-8274/
Name, Address of Responsible OfficialiTitle/Phone and Fax Number
Contacted
Jay Fuller,1732 Vaughn Rd Burlington NC 27217//336-570-6482/3365706485
No
Section C Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Mamtenance 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
Paul DiMatteo WSRO WQ//336-776-9691/
/ ff
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers
Date
i07 47
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete
Page#

NPDES yr/mo/day Inspection Type (Cont.)
31 NCO045161 I11 12 17/10/18 17 18 ICI
Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Site Review
1 Permit
The current permit became effective on July 1, 2016 and expires on April 30, 2021. A copy of the
current permit was available for review. Permitted components include a bar screen, aeration basin,
secondary clarifier, and UV disinfection, with final disposal to the Haw River
2. Facility Site Review
The facility was as described In the permit. Access to the site is restricted by a chain link fence Solids
are raked from the bar screen, dried in a basket set on top of the screen, and disposed of in the school
dumpster. Grit is removed from the bar screening box periodically. Two blowers in the aeration basin
are set on a timer so that each one runs on a 12 hour shift.
The area of the bar screen Is enclosed by a separate fence from the rest of the treatment plant. It was
noted that a lock was not present on this fence The ORC said that a lock would have to be provided by
school maintenance staff Mr. DiMatteo suggests evaluating whether locked, restricted access would
be appropriate at this location.
3 Operation and Maintenance
The operator or a properly designated backup visits the site as required. Visitation logs were current
and available during the inspection Mr Smith said that school maintenance staff turned off the UV
alarm because it kept going off after hours. However, lights on the control panel indicated that all bulbs
were operational and the ORC said the bulbs are cleaned regularly In case of a failure of the UV
system, Mr Smith said he could add chlorine tablets to the clarifier before the weir, but the contact time
would not be very long because a traditional contact chamber is not available
The ORC also stated that soda ash is added to the aeration basin to control pH and dog food is added
during the summer months to support the microbial population
4. Flow Measurement
Flow Is estimated using data from the potable water meter.
5. Effluent/Receiving Waters
The effluent Is discharged Into the Haw River In the Cape Fear River Basin. The outfall was accessible
during the inspection, and a slight discharge was visible The stream did not appear to be negatively
impacted
Documentation Review
6 Records/Reports
Discharge Monitoring Reports (DMRs) and lab data are maintained according to the permit. DMRs
include all permit parameters. Copies of DIVIRs, operator visitation logs, lab reports and
Chain -of -Custody forms were available for review during the Inspection.
7. Self -Monitoring Program
A review of self-monitoring data from January, 2016 through September, 2017 showed no violations,
and a comparison of submitted DMR data with available laboratory documentation revealed no
Page#

Permit NCO045161
Owner - Facility Altamahaw/Ossipee Elementary School
Inspection Date 10/18/2017 Inspection Type Compliance Evaluation
discrepancies or Issues
8 Laboratory
All parameters are analyzed by Research & Analytical Laboratories, Certification #34 ORC measures
pH and temperature at the facility All other samples are collected at the end of the UV trough by the
ORC and analyzed at the main laboratory
Temperature Is measured using the digital thermometer on the Dissolved Oxygen meter. The
thermometer was last calibrated on October 12, 2017 pH meter pre -run calibration and sampling
procedures appeared acceptable
9 Sludge Handling Disposal
Sludge Is removed from the aeration basin approximately every month by Jenkins Waste Management.
The most recent removals occurred in May, February, and January, 2017. Invoices for sludge removal
Is maintained on site
Page#

a
Permit* NCO045161 Owner - Facility Altamahaw/Ossipee Elementary School
Inspection Date: 10/18/2017 Inspection Type: Compliance Evaluation
Operations $ Maintenance Yes No NA NE
Is the plant generally clean with acceptable housek-3eping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: Settleable Solids. DO, pH for process control.
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
❑
❑
b.Mechanical
❑
application?
0
❑
Are the bars adequately screening debris?
0
Is the facility as described in the permit?
N
❑
❑
❑
# Are there any special conditions for the permit?
❑
N
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the Inspector granted access to all areas for inspection?
N
❑
❑
❑
Comment Facility Is permitted for a comminutor. but ORC said one was not in.
Bar Screens Yes No NA NE
Type of bar screen
a Manual
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
b.Mechanical
❑
Is all required Information readily available, complete and current?
0
❑
Are the bars adequately screening debris?
0
❑
❑
❑
Is the screen free of excessive debris?
N
❑
❑
❑
Is disposal of screening In compliance?
0
❑
❑
❑
Is the unit in good condition?
N
❑
❑
❑
Comment. Screened material is dried on a basket set on top of the screen, so that runoff water will loin
Name of Individual performing the sampling
the influent. Grit is also removed from the bottom of the bar screen occasionally.
Results of analysis and calibration
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required Information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab reg. required 5 years)?
N
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
E
❑
❑
❑
Is the chain -of -custody complete?
N
❑
❑
❑
Dates, times and location of sampling
Name of Individual performing the sampling
Results of analysis and calibration
Page# 4

Permit NCO045161
Inspection Date. 10/16/2017
Owner - Facility Altamahaw/Ossipee Elementary School
Inspection Type Compliance Evaluation
Record Keeping
Dates of analysis
Name of person performing analyses
Transported CDCs
Are MRS 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?
Yes No NA NE
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Comment In the ORC's logbook there appeared to be a -2 week period in April with no visits logged.
ORC was reminded to log every visitation, and to remind the backup ORCs to do the same
If they are performing the dally visitation.
Sludge Disposal- Hauled by Jenkins Waste Management. Most recent removals occurred in
5/2017 (1 load). 2/2017, 1/2017, 11/2016, 10/2016. and 5/2016
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- The outfall is located at approximately 36 182544 N, 79 509643 W The outfall was
M
❑
❑
accessible during the inspection No negative impact to the receiving
stream was noted
M
❑
❑
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
M
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
M
❑
❑
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
M
❑
❑
❑
Is the site free of evidence of short-circuiting?
M
❑
❑
❑
Is scum removal adequate?
❑
❑
❑
Is the site free of excessive floating sludge?
❑
❑
❑
Is the drive unit operational?
❑
❑
M
❑
Is the return rate acceptable (low turbulence)?
M
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
M
❑
❑
❑
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5

5
permit NCO045161 Owner - Facility. Altamahaw/Ossipee Elementary School
Inspection Date: 10/18/2017 Inspection Type Compliance Evaluation
Secondary Clarifier Yes No NA NE
Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) ❑ ❑ ❑ N
Comment: Sludge blanket level was not evaluated because the ORC did not brina his sludge iudae to
the inspection He said he tries to keep the level between 1 - 3 feet.
Some algae was growing on the clarifier weirs.
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system
- Diffused
Are extra UV bulbs available on site?
N ❑
Is the basin free of dead spots?
0
❑
❑
❑
Are surface aerators and mixers operational?
❑
❑
❑
❑
Are the diffusers operational?
0
❑
❑
❑
Is the foam the proper color for the treatment process?
N
❑
❑
❑
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)
❑
❑
❑
E
Comment -
Disinfection - UV
Yes No NA NE
Are extra UV bulbs available on site?
N ❑
❑
❑
Are UV bulbs clean?
0 ❑
❑
❑
Is UV intensity adequate?
❑ ❑
❑
N
Is transmittance at or above desiigned level?
❑ ❑
❑
0
Is there a backup system on site?
❑
❑
❑
Is effluent clear and free of solids?
❑
❑
❑
Comment: ORC could use chlorination/dechlorination as a backup,
but the chlorine contact time would
❑
❑
not be very Iona Chlorine would be added to the clarifier before the weir and dechlorinated at
the end of the UV trough.
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
N
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
❑
❑
❑
# Is the facility using a contract Lab?
E
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees
❑
❑
❑
N
Celsius)?
Incubator (Fecal Coliform) set to 44 5 degrees Celsius+/- 0.2 degrees?
❑
❑
❑
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F
Permit NCO045161 Owner - Facility. Altamahaw/Ossipee Elementary School
Inspection Date: 10/18/2017 Inspection Type: Compliance Evaluation
Laboratory Yes No NA NE
Incubator (BOD) set to 20.0 degrees Celsius +/_ 1 0 degrees? 1111110
Comment: Compared DMR results for 10/2016 and 4/2017. No discrepancies or issues were noted.
Effluent Sampling
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:
Yes No NA NE
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Page# 7