HomeMy WebLinkAboutNC0023353_Inspection_20010730North Carolina
-Department of Environment and Natural Resources
Division of Water Quality.
Fayetteville Regional Office
Michael F. Easley,. Governor
William G. Ross, Jr.; Secretary
• Kerr T.-Stevens, Director
July 30, 2001
The Honorable Goldston Womble
Mayor, Town of White Lake
POBox7250
White. Lake, NC 28337
-SUBJECT: Compliance Evaluation Inspection
Town of White Lake
Wastewater Treatment Plant
NPDES Permit No. NC0023353
Bladen County
:Dear Mr. Womble:
ern 16'14
NCDENR.
Enclosed is a copy of the Compliance Evaluation Inspection conducted July 20, 2001.
During the inspection a tour of the Wastewater Treatment Plant was conducted. While
discussing effluentSamplecollection, it was discovered that the facility does riot collect composite
samples for the required parameters in the NPDES permit. Please begin effluent composite
sampling within 90 days of receiving this report. All other observations and recommendations
from the inspection are in Part D. Summary of Findings/Comments of this. inspection report. The
cooperation of Mr. Bill Stafford, Grade II ORC was appreciated. As a reminder preservation of the
Waters of the State can only be acquired through consistent NPDES permit compliance.
Please review the attached report. If you or your staff haveany questions do not hesitate to
contact the at 910-486-1541.
Sincerely46/00-0
Belinda S. Henson
Environmental Chemist
/bsh
Enclosures
cc: Central Files
FRO Files
225 GREEN STREET- SUITE 714 / SYSTEL BUILDING / FAYETTEVILLE, NC 28301-5043
PHONE (910) 486-1541 FAX (910) 486-0707 WWW.ENR.STATE.NC.USIENR/
AN EQUAL OPPORTUNITY /.AFFIRMATIVE ACTION EMPLOYER- 50% RECYCLED/10% POST CONSUMER PAPER
DENR TOLL FREE HOTLINE: 1-877-623-6748
NPDES COMPLIANCE INSPECTION REPORT
North Carolina Division of Water Quality
Fayetteville Regional Office
Section A. National Data System Coding
Transaction Code: N NPDES NO. NC0023353 Date: 010720 Inspection Type: C
Inspector: S Facility Type: 1 Reserved:
Facility Evaluation Rating: 4 BI: N QA: N Reserved:
Section B: Facility Data
Name and Location of Facility Inspected:
Town of White Lake WWTP
Entry Time: 10:05am Permit Effective Date: 001101
Exit Time/Date: 1:30pm/010720 Permit Expiration Date: 011031
Name(s), Title(s) of On -Site Representative(s):
Bill Stafford (Certified Grade II) - "ORC"
Tim Frush - "Public Works Director"
Phone Number(s): (910)862-4800
Name, Title and Address of Responsible Official:
Mr: Goldston Womble, Mayor
PO Box 7250
White Lake, NC 28337
Section Ct Areas Evaluated During Inspection
•
Contacted: no
(S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated, N/A = Not Applicable)
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Page 3
July 30, 2001
Womble
Section D: Summary of Findings/Comments:
1. The automatic bar screen was operational. It operates by a float system and when the flow reaches a
certain height it operates automatically. A manual bar screen is also in place to utilize when necessary.
All screenings are disposed of in the county landfill.
2. The grit removal system appeared to be operational with all grit disposed in the county landfill.
. 3. A backup generator is on site to provide electricity to the WWTP should an extended power outage
occur. A weekly operational schedule should be implemented to ensure the generator will be operational
in times of need.
4. Barley hay had been placed in the lagoon a few months ago to assist in natural algae control in the
lagoon. Based on studies, chemicals released by the decomposing barley kills or inhibits the growth of
the algae. On the day of the inspection, the clarity of the lagoon appeared to be good with little algae
growth.
5. The multicellular aerated lagoon appeared to be operational. Various areas in the lagoon had alligator
weed in it. The weed should be removed to assist with adequate treatment of the wastewater. The
facility is presently not adding Sonar to the influent for. duckweed control. Some (not excessive)
duckweed appeared in the lagoon. The curtain in cell #4 had been stabilized on the designated posts as
recommended in the inspection report dated August 28.2000. All six aerators were operational. Three
(3) are located in cell #1, two (2) in cell #2 and one (1) in the final cell #4.
6. The chlorine contact tank appeared to be clean. There did not appear to be any turtles located in the tank.
The facility staff continues to use a net to remove creatures out daily to eliminate possible NPDES
permit violations. The facility continues to utilize a water sprinlder system at the discharge outlet to
assist with elimination of foam. The foam did not appear to be excessive. Chlorine is added for
chlorination and sulfur dioxide is added for dechlorination of the effluent. Approximately 20-40 pounds
of chlorine is added per day.
7. The effluent appeared to be free of solids with a slight amount of amber color which is natural for this
effluent with the tannic acid release from tree roots in the area. The effluent discharges into Colly
Swamp. •
8. The effluent flow meter is a Milltronics OCM III which has been installed since the last inspection. The
flow meter is wired through to a flow chart device which records the flows on a flow chart. The flow
meter was calibrated October 18, 2000 as per the sticker found on it. Records confirming the calibration
were not found during the inspection. Please be advised that all flow calibration records should be on
site as part of records retention as stated in the NPDES permit Part II. Section D. 6. Records
Retention. It is advisable that the flow meter calibration document contain the % error of the correct
flow before and after calibration.
9. The `Backup Operator" for this facility is Oliver Worthington, a Grade II operator who is not employed
by the Town.
Page 4
July30, 2001
Womble
10. The following NPDES permit parameters are analyzed on site: pH, Temperature, Dissolved Oxygen and
Total Chlorine Residual (TRC). The facility analyzes for the Chlorine parameter with a La Motte 1200.
During the inspection it was discovered that the facility was analyzing for Free Chlorine verses Total
Residual Chlorine. All wastewater samples should be analyzed for Total Residual Chlorine as per
your NPDES permit. The other NPDES permitrequired parameters are analyzed by "Environment 1"
laboratory located in Greenville.
11. Laboratory records for the months September through November 2000 were reviewed and compared
to Discharge Monitoring Reports (DMRs). All records reviewed appeared to be correctly reported.
12. A compliance evaluation analysis report for the period June 2000 through May 2001 did not reveal any
NPDES permit monthly violation for the period.
13. Maintenance records were on site.
Please respond in writing to our office concerning the composite sampling requirement and items 8 and
P by SEPTEMBER 1., 2001.
124)144
Name and Signature of Inspector
Belincj S. Henson, r��
tti %6t . ` % t'w-e -
Name and Signature of Reviewer
Grady Dobson
Action Taken
Agency/Office/Telephone Date
DENR/F ayetteville/(9 1 0)4 8 6-15 4 1
Agency/Office/Telephone Date
DENR/Fayetteville/(9 10)486-1541
Regulatory Office Use Only
Compliance Status
Noncompliance
Compliance
Date
Section Ds Summary of Findings/Comments
Brief Facility Description:
Consisting of a 4.4 acre aerated lagoon, a multicellular facultative lagoon, automatic bar screen_
grit removal system, chlorine contact tank, effluent flow meter and chlorination/dechlorination
system.
FACILITY SITE REVIEW
es o N/A 1. Treatment units properly operated and maintained.
o N/A 2. Standby power or other equivalent provision provided.
Yes No N/A . 3. Adequate alarm system for power or equipment failure available.
4.
Yes .No
Yes No
Sludge disposal procedures appropriate:
a. Disposal of sludge according to regulations
b. State approval for sludge disposal received.
Yes No %A 5. Sufficient sludge disposed of to maintain treatment process 'equilibrium.
No N/A 6. The ORC and Backup Operator are officially designated with
NCDENR/DWQ Training and Certification Unit.
Yes No N/A 7. Adequate spare parts and supplies inventory maintained.
Es)No N/A 8. Plant has general safety structures such as rails around or covers over
tanks, pits, or wells.
es o N/A 9. Plant is generally clean, free from open trash areas.
10. Screening:
Ees No N/A a. Manual
e No N/A b. Mechanical
Yes VAN/A c. Buildup of debris
No N/A d. Screenings properly disposed of.
Yes
Yes
11. Grit Removal:
N/A a. Excessive organic content in the grit chamber
N/A b. Excessive odors
Page 2
1
Yes No�N/A)
Yes No N/A
Yes No N/A
Yes No N/A
Yes No N/A
Yes. No N/A
Yes No N/A
Yes No NIA
Yes No N/A
Yes No N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Now/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No ;N/�
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
Primary clarifier:
a. Excessive gas bubbles
b. Black and odorous wastewater
c: Poor suspended solids removed
d. Excessive buildup of solids in center well of circular clarifier
e. Weirs level
f. Weir blockage
g. Evidence of short circuiting
h. Lack of adequate scum removal
.Excessive floating sludge
j. Broken sludge scraper.
13. Trickling Filter:
a. Trickling filter ponding(indicating clogged media).
b. Leak at center column of trickling filter's distribution arms
Uneven distribution of flow on trickling filter surface
Uneven or discolored growth
Excessive sloughing of growth
Odor
Clogging of trickling filter's distribution arm orifices
Filter flies, worms, or snails.
14.
15.
NoN/A0
No N/A
No N/A
No N/A
c.
d.
e:
f.
•g.
h.
Activated Sludge Basins/Oxidation Ditches:
a. Dead spots
b. Failure of surface aerators
c. Air rising in clumps
d. Dark foam or bad.color
e. Thick billows of white, sudsy foam
f. Air rising unevenly
g. Excessive air leaks in compressed air piping.
Stabilization Ponds/Lagoons:
a. Excessive weeds including duckweed in stabilization ponds
b. Dead fish or aquatic organisms :
c. Buildup of solids around influent pipe
d. Excessive scum on surface. •
Page 3
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
N/A.l
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
RUB
N/A
N/A
N/A
N/A
N/A
Yes (N) N/A
Yes N/A
Yes TNo) N/A
Yes No N/A
Yes No N/A
(r No N/A
(yap No N/A
(Yes) No N/A
Yes No
(Yes` No N/A
(Yes No N/A
.=Yes No N/A
Yes
Yes
Yes
Yes
16. Secondary Clarifier:
a. Excessive gas bubbles on surface
b. Level overflow weirs
c. Weir blockage
d. Evidence of short circuiting
e. Excessive buildup of solids in center well of circular clarifier
f. Pin floc in overflow
g. Effective scum rake
h. Floating sludge on surface
i. Excessive high sludge blanket
j. Clogged sludge withdrawal ports on secondary clarifier.
17. Filtration:
a. Filter surface clogging
b. Short filter run
c. Gravel displacement of filter media
d.. Loss of filter media during backviashing
e. Recycled filter backwash water in excess of 5 percent
f. Formation of mudballs in filter media.
1
Chlorination -Unit:
a. Sludge buildup in contact chamber
b. Gas bubbles
c. Floating scum and/or solids
d. Adequate ventilation of chlorine feeding room and storage area
e. NIOSH-approved 30 minute air pack
f. All standing chlorine cylinders chained in place
g. All personnel trained in the use of chlorine
h. Proper chlorine feed, storage, and reserve supply.
19. Ultraviolet radiation disinfection present and in use.
20. Dechiorination:
a. Proper storage of sulfur dioxide cylinders
b. Adequate ventilation of sulfur dioxide feeding room
c. Automatic sulfur dioxide feed or feedback control operating
properly.
21.
No (IPA)
No N/A
No N/A
No N/A
Aerobic Digester:
a. Excessive foaming in tank
b. Noxious odor
c. Mechanical aeration failure
d. Clogging of diffusers.
Page 4
Yes No gik
Yes No N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
22. Anaerobic Digester:
a. Floating cover tilting
b. Gas burner operative
23. Sludge Drying and/or disposal:
No �/) a. Poor sludge distribution on drying beds
No N/A b. Vegetation in drying beds
No N/A c. Dry sludge remaining in drying beds
No N/A d. Dry sludge stored on site
No N/A e. Filtrate from sludge drying beds returned to front of plant
No N/A f. Sludge disposal through county landfill.
No • N/A g. Sludge land applied.
Yes No OW
Yes No N/A
Yes No ' N/A
Yes No N/A
Yes No . N/A
Yes No N/A
Yes NO) N/A
Yes �No� N/A
(Ye� No N/A
(WO No N/A
(Pei) No N/A
Yes (off N/A
Yes `No) N/A
Yes (t N/A
Yes(go) N/A
Yes No N/A
24. Filter Press:
a. High level of solids in filtrate from filter presses or vacuum filters
b. Thin filter cake caused by poor dewatering
c. Sludge buildup on belts and/or rollers of filter press
d. Excessive moisture in belt filter press sludge cake.
25. Polishing Ponds or Tanks: -
a. Objectionableodor, excessive foam, floating solids, or oil sheens on
water surface
b. Solids or scum accumulations in tank or at side of pond
c. Evidence of bypassed polishing ponds or tanks because of low
capacity.
26. Plant Effluent:
a. Excessive suspended solids, turbidity, foam, grease, scum, color, and
other macroscopic particulate matter present
b. Potential toxicity (dead fish, dead plant at discharge)
c. Outfall discharge line easily accessible.
27. Flow Measurement:
a. Proper placement of flow measurement device
b. Flow meter calibrated
c. Buildup of solids in flume or weir
d. Broken or cracked flume or weir
e. Clogged or broken stilling wells.
f. Weir plate edge corroded or damaged
g. Flow measurement error less than 10%.
Page 5
YeS) No N/A
Yes No N/A
ryes No N/A
Yes (.No) N/A
28. Sampling:
a. Sampling and analysis completed on parameters specified by permit
b. Composite sample temperatures maintained at 4 degrees Celsius or
less (but above freezing) during sampling
c. Contract laboratory used for sample analysis
d. Effluent composite samples obtained are flow proportional.
(YeTs) No N/A
(N�� No N/A
. Yes No (-N/t)
-Yes' No N/A
�Yes� No N/A
;`Yew No N/A
• `Yes No N/A
•
-Yes No N/A -
C.Yes' No N/A
Yes No N/A
Nes) No N/A
Yes No N/A
Yes No N/A
Yes No N/A
•
V'es) No N/A
RECORDKEEPING AND REPORTING
1. Records and reports maintained as required by permit.
2. All required information available, complete, and current.
3. Records maintained for 3 years and all sludge records maintained for 5
years.
4. Analytical results consistent with data reported on DMRs. .
5. Sampling and analyses data adequate and include:
a. Dates, times, and location of sampling
b. Name of individual performing sampling
c. Results of analyses and calibration
d. Dates of analyses
e. Name of person performing analyses.
6. Monitoring records adequate and include:
a. _ Monitoring charts kept for 3 years
b. Flowmeter calibration records kept for 3 years.
7. The pH meter is calibrated daily with two buffers and checked with a
third buffer and properly documented.
8. Expiration dates of pH buffers adequate.
9. • All thermometers used in NPDES permit reporting is calibrated
annually with an NIST certified thermometer or a traceable
thermometer annually and documented.
10. The following NPDES permit required parameters are analyzed on site:
pH, Temperature, Dissolved Oxygen and Chlorine Residual.
Page 6
Yes No N/A
Yes No rN/A,
. Yes. No N/A) ' 13.
Yes No N/A
Yes No N/A
Yes No N/A
Yes No N/A
Yes No A
es ' No N/A
Yes No N/
Yes No N/A :18.
(Yes) No .N/A
ryes) No N/A
Yes No N/A
No N/A
11. The NPDES permit required parameter Total Chlorine Residual is.
analyzed by approved method:
12. BOD incubator temperature maintained at 20 +/- 1 Degrees Celsius
and the temperature maintained in a log for every day of operation,'
Fecal coliform incubator maintained at 44.5 +/- 0.2 Degree Celsius and
the temperature maintained in a log for every day of operation.
14: Plant records adequate and include:
a. 0 & M Manual
b. "As -built" engineering drawings
c. Schedules and dates of equipment maintenance repairs
d. Equipment data cards.•
15. Permittee is meeting compliance schedule.
16. DMRs complete and include all NPDES permit required parameters.
17. The•facility has a permitted flow greater than 5 MGD and is required
to operate seven days per week 24 hours a day.
ORC visitation logs available and current.
19. ORC certified at a level equal to or greater than the classification of
the wastewater facility.
20. " Backup Operator certified at one level less than the classification of
the wastewater facility or greater.
21. Current copy of the complete NPDES permit on site.
22. Facility description verified as contained in NPDES permit.
Yes <06:.N/A 23.
Yes No (N/A) 24.
Revised 7/16/01.
by Belinda Henson
Facility analyzes process control parameters for example: MLSS,
MCRT, Settleable Solids and others that are applicable.
Industrial Waste Surveys (IWS) sent to all possible Significant
Industrial Users (SIUs) within the last five years (especially new
industries).
INSPECTION REPORT
UPDATE OPTION: TRX: 5IF KEY: NC0023353INSCEI 010720
SYSMSG: *** DATA ADDED SUCCESSFULLY
* * *
PERMIT--- NC0023353 REG/COUNTY-- 06 BLADEN
FACILITY-- WHITE LAKE, TOWN / WWTP LOC-- WHITE LAKE
INS TYPE
CEI
NEXT PLANNED
INSPECTION INSPECTED BY:
DATE : 010720HSB
REPORT- INSPECTION -DMR RESPONSE RECEIVED
DATE STATUS STATUS DUE DATE. DATE
010730 C C 010901
COMMENTS:
RESPONSE FOR EFFLUENT COMPOSITE SAMPLING AND ITEMS 8 AND 10.