HomeMy WebLinkAboutNC0025402_Historical information_20050331March 31, 2005
Subject:
Dear Mayor Jones:
1.
2.
3.
4.
Safety guard railing is absent from the perimeter of the bar screen platform, including the
right side handrail for the steps. The platform is 4 to 5 feet above the ground. While the
OSH A Standard for Fall Protection requires railings when the elevation is 6’ or more, we still
urge that attention be given this to this situation because of the kinds of objects a worker
could fall onto. The missing handrail for the steps is an OSHA violation and should be
corrected as soon as possible.
The three influent pumps all work, but No. 2 has a blocked line. This should be repaired as
soon as possible.
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Compliance Evaluation Inspection
Enfield WWTP
NPDES Permit No. NC0025402
Halifax County
1628 Mail Service Center
Km icoo
Customer Service
•1 Q-7-7 GOQ C7/1O
Raleigh Regional Office
IA7Cnnlinn
Wastewater plants permitted for 1 MGD or more and having at least one storm water point
discharge are now required to have a stormwater program under general permit NCG11000.
Enclosed is an application form. Please submit this Notice of Intent and fee to the address
indicated by April 15, 2005. The text of the pennit may be found at URL
http://h2o.enr.state.nc.us/su/Forms Documents.htm. Locate NCG10000 and click on Permit
Text. The permit requires development of a plan. Many facilities opt to have a consultant
create the site-specific plan for them.
The standby power generator has capacity to run the entire plant, but the switchgear is not
capable of doing so. We urge upgrading the equipment to provide full operation during
extended power outages. The generator was run during the inspection. Note added
5/16/2005: the generator cannot run everything, so one ditch and digester aerators cannot be
run. The Town wishes to add the grit chamber to the list of what can be run, so Green Engrg
is working on that change. Per phone calls with Steve Mitchell, Green Eng, and Bobby
Davies, Enfield Town Manager. MN
phone (919) 571-4700
znin\c7i >17-10
Mr. Myrl Nisely of the Raleigh Regional Office of the Division of Water Quality performed a
compliance inspection on 3/29/2005. The cooperation of Mr. Tony Gorham, Backup ORC was
appreciated. The wastewater plant was in compliance except for lacking a stormwater program.
Findings are reported on the attached checklist. Please be sure to read the comments located at
the end of some of the sections of the checklist. Topics the Division highlights are as follows:
Town of Enfield
Honorable Mayor Edward Jones
PO Box 699
Enfield, NC 27823
nTdem
-/ I
North Carolina DcSartmi
K
North Carolina Departmen"
March 31, 2005
Subject:
Dear Mayor Jones:
1.
2.
3.
4.
5.
The three influent pumps all work, but No. 2 has a blocked line. This should be repaired as
soon as possible.
Wastewater plants permitted for 1 MGD or more and having at least one stormwater point
discharge are now required to have a stonnwater program under general permit NCG11000.
Enclosed is an application form. Please submit this Notice of Intent and fee to the address
indicated by April 15, 2005. The text of the permit may be found at URL
http://h2o.enr.state.nc.us/su/Forms Documents.htm. Locate NCG10000 and click on Permit
Text. The permit requires development of a plan. Many facilities opt to have a consultant
create the site-specific plan for them.
Safety guard railing is absent from the perimeter of the bar screen platform, including the
right side handrail for the steps. The platform is 4 to 5 feet above the ground. While the
OSHA Standard for Fall Protection requires railings when the elevation is 6’ or more, we still
urge that attention be given this to this situation because of the kinds of objects a worker
could fall onto. The missing handrail for the steps is an OSHA violation and should be
corrected as soon as possible.
The standby power generator has capacity to run the entire plant, but the switchgear is not
capable of doing so. We urge upgrading the equipment to provide full operation during
extended power outages. The generator was run during the inspection.
I&I from rain before the inspection caused blanket levels in both secondary clarifiers to be
higher than normal, about 9’ deep out of a total depth of 15’. Continued efforts at I&I
reduction are important for improved operation.
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
NCDENR
Compliance Evaluation Inspection
Enfield WWTP
NPDES Permit No. NC0025402
Halifax County
Customer Service
1 077 CTJ C7^O
Raleigh Regional Office 1628 Mail Service Center
Mf' n-zcnn -ICIO
L' C
Mr. Myrl Nisely of the Raleigh Regional Office of the Division of Water Quality performed a
compliance inspection on 3/29/2005. The cooperation of Mr. Tony Gorham, Backup ORC was
appreciated. The wastewater plant was in compliance except for lacking a stormwater program.
Findings are reported on the attached checklist. Please be sure to read the comments located at
the end of some of the sections of the checklist. Topics the Division highlights are as follows:
Town of Enfield
Honorable Mayor Edward Jones
PO Box 699
Enfield, NC 27823
phone (919) 571-4700
/rnn\C7i ^710
A o? /|a| I > (LJUAJ?
Page 2 of 2Enfield CEI 3/29/2005
If you have questions concerning this report, please contact me at 919-571-4700.
Sincerely,
Central Filescc:
6. Chlorine and Sulfur Dioxide should be maintained and handled at great distances from each
other. If they react, they create the deadly gas phosgene. Might it be possible to move one or
the other into the influent pump room or some other location at that end of the building?
Protection from weather and direct sunlight, as well as adequate ventilation would be needed.
Myrl A. Nisely
Environmental Chemist
Raleigh Regional Office
Permit
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment:
Yes No NA NEOperations & Maintenance
Does the plant have general safety structures in place such as rails around or covers over tanks, pits, or wells?
NA NE
Is the general housekeeping acceptable?
Is the wet well free of excessive grease?
Are float controls operable?
Is SCADA telemetry available and operational?
NA NE
Type of bar screen
a.Manual
b. Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Type of grit removal
a.Manual
b.Mechanical
Is the site free of excessive organic content in the grit chamber?
Is the site free of excessive odor?
Yes No NA NESecondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is audible and visual alarm available and operational?
Comment: No SCADA available. All three pumps are working, but number 2 has a blocked line. Repair soon to have
needed flexibility.
Bar Screens
(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?
Are all pumps present?
Are all pumps operable?
Is disposal of grit in compliance?
Comment:
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
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Is the plant generally clean with acceptable housekeeping?
Comment: Handrail missing from right side of steps to bar screen platform. Also recommend full guard rails around
platform because a fall could result in landing on equipment below.
Pump Station - Influent
Is the pump wet well free of bypass lines or structures?
Is the unit in good condition?
Comment: As noted above, guard and hand railings are missing.
Grit Removal
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Yes No
Yes No
Yes No NA NF
Oxidation Ditches NA NE
Yes No NA NF
Type of system ?
Yes No NA NE
Type of system ?
Are the tablets the proper size and type?
Is SCBA equipment operational?
Is staff trained in operating SCBA equipment?
Is staff trained in emergency procedures?
Is an evacuation plan in place?
Are tablet chlorinators operational?
Are the tablets the proper size and type?
Number of tubes in use?
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
Is de-chlorination substance stored away from chlorine containers?
Is ventilation operational?
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Is there adequate resen/e supply of disinfectant?
Is ventilation equipment operational?
Is ventilation equipment properly located?
Is SCBA equipment available on site?
Is the sludge blanket level acceptable?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the surface free of bulking ?
Comment:
Are the aerators operational?
Are the aerators free of excessive solids build up?
Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’ s surface?
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Secondary Clarifier
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
(Sodium Hypochlorite) Is pump feed system operational?
Is bulk storage tank containment area adequate? (free of leaks/open drains)
Is the level of chlorine residual acceptable?
Is there adequate detention time
Is the contact chamber free of growth, or sludge buildup?
Comment: Chlorine and Sulfur Dioxide bottles are both stored on a covered patio at the left end of the operating building.
All were properly chained, but the two chemicals were only about 5 feet apart. See next note.
De-chlorination
Is the DO level acceptable?
Are settleometer results acceptable (> 30 minutes)?
Comment: Blankets presently above desired guideline of 1/3 depth. Were 9 to 9.5 feet out of total depth of 15'. Not a
threat to leave the clarifier, however. Normally at 2 to 3 feet.
Disinfection
Yes No
Yes No NA NF
Gas
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Number of tubes in use?
Comment:
Standby Power
Is automatically activated standby power available?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
NA NE
Are analytical results consistent with data reported on DMRs?
Comment:
NA NFFlow Measurement - Effluent
Is flow meter operating properly?
NA NE
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Dates, times and location of sampling
Name of individual performing the sampling
Name of person performing analyses
Transported COCs
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As built Engineering drawings
Does generator have adequate fuel?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Comment: Tested under load quarterly, not weekly. Engine is run weekly. Generator can run entire plant, but cannot
do so right now because of switchgear limitations. Recommend upgrading the switchgear.
I ahoratory
Is generator tested weekly by interrupting primary power source?
Is generator tested under load at least quarterly?
Was generator tested & operational during the inspection?
Are analytical results consistent with data reported on DMRs?
Are sampling and analysis data adequate and include:
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?
Plant records are adequate, available and include
O&M Manual
Is proper temperature set for sample storage (kept at 1.0 to 4.4 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?
Is flow meter used for reporting?
Is flow meter calibrated annually?
Results of analysis and calibration
Dates of analysis
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Record Keening
Are records kept and maintained as required by the permit?
De-ch I ori nation
Comment: Chlorine and Sulfur Dioxide react to produce phosgene gas, an extremely toxic gas. It would be best to
store these chemicals in completely isolated locations, and not close together as they are now.
Are tablet de-chlorinators operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Last calibrated 12/1/04. Recording chart read 1.05 MGD while meter read 1.08, well within the 10% tolerance
allowed.
Yes No
Yes No
Yes No
Yes No NA NE
Yes No NA NE
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Yes No
NA NF
NA NFUpstream / Downstream Sqmpling
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Yes No NA NE
Is right of way to the outfall properly maintained?
Influent Sampling
Is composite sampling flow proportional?
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)?
Comment:
Aerobic Digester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
Is the odor acceptable?
Comment: Storage cell is now ready for land application. Wasting goes to the first cell. All cells now have adequate
mixing.
Effluent Pipe
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)?
Is the tubing clean?
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
Comment:
Are receiving water free of solids and floatable wastewater materials?
Are the receiving waters free of solids / debris?
Are the receiving waters free of foam other than a trace?
Are the receiving waters free of sludge worms?
If effluent (diffuser pipes are required) are they operating property?
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Is sampling performed according to the permit?
Comment: Timed sampling
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Yes No NA NE
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Record Keeping
Schedules and dates of equipment maintenance and repairs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users?
(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 cun-ent?
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?
Is the facility description verified as contained in the NPDES permit?
Does the facility analyze process control parameters, for example: MLSS, MCRT, Settleable Solids, DO, Sludge
Judge, pH, and others that are applicable?
Facility has copy of previous year's Annual Report on file for review?
Comment:
NA NEYes No
Yes No
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Yes No
NA NF
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DayYear
Division of Water Quality / Water Quality Section
National Pollutant Discharge Elimination System Amount
Permit Assigned toNCG110000
NOTICE OF INTENT
STORMWATER DISCHARGES associated with activities classified as:
(Please print or type)
ZIP Code
* Address to which all permit correspondence will be mailed
State ZIP Code
Fax:
Date operation is to begin
Page 1 of 3
SWU-226-101701
New or Proposed Facility
Existing
Treatment Works treating domestic sewage or any other sewage sludge or wastewater treatment
device or system, used in the storage, treatment, recycling, and reclamation of municipal or
domestic sewage, with a design flow of 1.0 million gallons per day or more, or required to have an
approved pretreatment program under Title 40 Code of Federal Regulations (CFR) Part 403,
including lands dedicated to the disposal of sewage sludge that is located within the confines of
the facility.
State
Fax:
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG110000:
NCDENR
North Carolina Department of
Environ men" and Natural Resources
FOR AGENCY USE ONLY
______Date Received
Month
Certificate of Coverage
I | ill I ~TT
Check #
5) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code:
(A copy of a county map or USGS quad sheet with facility clearly located on the map is required to be submitted with this application)
4) This NPDES Permit Application applies to which of the following :
2) Location of facility producing discharge:
Facility Name
Facility Contact
Street Address
City
County
Telephone No.
3) Physical Location Information:
Please provide a narrative description of how to get to the facility (use street names, state road numbers, and
distance and direction from a roadway intersection).
1) Mailing address' of owner/operator:
Name
Street Address
City
Telephone No.
NCG110000 N.O.I.
11) Does this facility have a Stormwater Pollution Prevention Plan?
Yes No
No Yes
No Yes
Yes No
d) If you answered yes to questions b. or c., please provide the following information:
Page 2 of 3
SWU-226-101701
No
Yes
If yes, list the permit numbers for all current Non-Discharge permits for this facility:
10) Does this facility employ any best management practices for stormwater control?
No
Yes
If yes, please briefly describe:
No
Yes
If yes, when was it implemented?
12) Are vehicle maintenance activities occurring at this facility?
13) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
7) Discharge points / Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater from the property?
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
discharges end up in?
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer).
8) Does this facility have any other NPDES permits?
No
Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
9) Does this facility have any Non-Discharge permits (ex: recycle permits)?
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
6) Provide a brief narrative description of the types of industrial activities and products manufactured at
this facility:
NCG110000 N.O.I.
(Signature of Applicant)(Date Signed)
Notice of Intent must be accompanied by a check or money order for $80.00 made payable to:
NCDENR
Final Checklist
Note
Page 3 of 3
SWU-226-1017Q1
14) Certification:
North Carolina General Statute 143-215.6 b (i) provides that:
Mail the entire package to:
Stormwater and General Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
I certify that I am familiar with the information contained in this application and that to the best of my knowledge
and belief such information is true, complete, and accurate.
Any person who knowingly makes any false statement, representation, or certification in any application, record, report,
plan or other document filed or required to be maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, or who falsifies, tampers with or knowingly renders inaccurate any
recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a
fine not to exceed $10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides
a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years, or both, for a similar offense.)
Ty pe (s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
Printed Name of Person Signing:
Title:
This application will be returned as incomplete unless all of the following items have been included:
Check for $80 made payable to NCDENR
This completed application and all supporting documents
Copy of county map or USGS quad sheet with location of facility clearly marked on map
NCG110000 N.0.1.
The submission of this document does not guarantee the issuance of an NPDES permit.
Page 4 of 3
SWU-226-101701