HomeMy WebLinkAboutNC0026921_Inspection_20120829NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman
Governor Director Secretary
August 29, 2012
Larry G. Hagin, Mayor
Town of Parkton
Post Office Box 55
Parkton, N.C. 28371
SUBJECT: Compliance Evaluation Inspection, August 16, 2012
Town of Parkton Wastewater Treatment Facility
Permit No. NC0026921
Robeson County
Dear Mayor Hagin:
Enclosed please find a copy of the Compliance Evaluation Inspection Report for the inspection
conducted August 16, 2012. I would like to thank Mr. Roy Lowder, Operator in Responsible
Charge (ORC) for his time and participation during the inspection. The Town of Parkton was
found to be in compliance with Permit NC0026921 but there are several recommendations the
Town is urged to consider. Please note that a response to this report is required.
• All requested log books and records were present and available upon request.
• The Wastewater Treatment Facility (WWTF) Backup Operator was noted as Mr. Keith
Young.
• Influent. Manual Bar Screen: The WWTF currently is equipped with a manual influent
bar screen. The unit is showing signs of wear but appears to be functioning adequately.
• Grit Removal: Currently the Town's WWTF is not equipped with grit removal. Failure to
remove grit can lead to excessive accumulation of sand/solids. Large quantities of
sand/solids can cause excessive pump wear, increased maintenance costs and in some
cases cause violations of the NPDES permit. Sand/solids accumulation is discussed
further below. Mr. Lowder indicated that the Town had recently applied for grant money
that in part was to be directed to the addition of grit removal. Mr. Lowder stated that the
Town had not been awarded the grant and therefore does not have the funds necessary
to repair and/or modify the WWTF. The Town is urged to continue to seek funds to
repair and/or modify the WWTF and collection system.
Location: 225 Green Street, Suite 714, Fayetteville, North Carolina 28301-5043
Phone: 910-433-3300 FAX: 910-486-07071 Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.orq
An,Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturallyy
Mayor Hagin
August 29, 2012
Page 2 of 4
• Oxidation Ditches: The facility is equipped with two oxidation ditches. As the WWTF
does not have grit removal and is plagued with Infiltration/Inflow (I/I) the upper ditch was
checked for sand/solids accumulation. The check was performed by stopping aeration
long enough to check the unit with a "Sludge Judge". The unit was checked at +/- six
points. Solids/sand was measured ranging from several inches to over 2 feet in depth.
As the water depth of the ditch is believed to be approximately 4 feet much of the.
treatment capacity of the unit is being lost with settled sand/solids.
Excessive accumulations of sand can eventually cause permit violations. The Town is
urged to clean both oxidation ditches as soon as possible to avoid compliance
issues.
It was also noted that the control gate that regulates the liquid level in the #1 oxidation
ditch (upper ditch).currently does not function correctly. The gate will not close
completely. The gate is key to regulating aeration in the unit. (Please note that Mr.
Lowder stated that the D.O. level in ditch #1 averages +/- 5.0 mg/I and ditch #2 +/- 2.0
mg/I) The Town is urged to repair the gate as soon a possible.
• Clarifiers: The facility is equipped with two secondary clarifiers. Some accumulation of
what appeared to be algae was noted on the effluent weirs, but not deemed to be
excessive. Algal growth is typically controlled by weekly cleaning of the effluent weirs.
• Return Activated Sludge (R.A.S.) pumps/valves. It was noted that the valves that
control R.A.S. or the wasting of solids were inoperable (both clarifiers). It was noted that
Mr. Lowder has developed a "work around" strategy to manage solids. He indicated that
while operating the facility in this manner is difficult he does not believe that compliance
is currently compromised. As solids management is key to compliance the Town is
urged to repair these valves as soon as possible.
R.A.S. pumps were checked during the inspection and appeared to be operable.
RAS/WAS check valves should be checked to ensure proper operation.
• Disinfection: As noted above Mr. Lowder indicated that the Town had recently
applied for grant money that was not awarded. The grant money reportedly would have
been in part for the modification of the chlorination basin. Mr. Lowder stated that while
the gaseous chlorination unit is flow paced the current design of the contact basin does
allow for proper retention time.
Failure to properly disinfect can cause or contribute to fecal coliform violations.
Also please note that the Town has had several effluent toxicity violations over the past
few years. Please be advised that improper chlorination can also potentially cause
or contribute to toxicity violations.
• De -chlorination: The Town currently uses calcium thiosulfate ("Captor") to de -chlorinate
effluent. It should be noted that de -chlorination is not flow paced. It is suggested that
the Town install flow paced de -chlorination to prevent over dosing of de -
chlorination agents that can cause or contribute to effluent toxicity violations and
also save the Town money.
Mayor Hagin
August 29, 2012
Page 3 of 4
• Effluent flow meter: The effluent flow meter appeared to be operational and calibrated
within the last twelve months. It should be noted that during periods of excessive flow
the meter may "peg out" thus producing inaccurate flow readings. Please note that
accurate flow data is important for proper effluent disinfection (disinfection is flow paced
based on data from the effluent flow meter) and that flow data is used, in part, to check
and design various components of the WWTF.
• Aerobic digester: Reportedly the unit is primarily used for settling of solids.
• Sludge Drying Beds: It was noted that vegetation has begun to grow on the sludge
drying beds. The Town is urged to keep the beds free of excessive vegetation. It is
acknowledged that the Town has limited staff but if vegetation becomes
established in the drying beds it can prevent the proper function of the units and
make cleaning very difficult.
The Town currently disposes of dried sludge in the county landfill.
The Town is reminded that the operation of the beds should be performed in
keeping with acceptable practices.
• General Comment: It was noted that much of the metal components of the facility
are in need of basic maintenance. It is recommend that these components be
painted when possible to prevent more costly repair in the future.
• A quality assurance check of Discharge Monitoring Report data, field and
commercial lab data and chain -of -custody information was performed with no
issues noted.
Many of the items noted in this report have either been documented in previous reports or
previously discussed with the Town. The Town is asked to develop a plan -of -action (POA) to
address the items noted as well as any other repairs, modifications and/or additions deemed
necessary.
The POA should include at a minimum but not necessarily be limited to the following:
1. Items or units identified as needing maintenance,.
2. Items or units identifiedas needing modification,
3. Prioritization of each item noted above in the order of importance to consistently meet
compliance.
4. Ability of the Town to fund maintenance and/or modification with municipal funds. This
items should include an estimate of municipal funds that can bedirected to WWTF
needs on an annual basis,
5. Outline attempts to obtain grant and/or loans over the past three years.
The Town is asked to provide the requested POA on or_. before December 3, 2012.
Mayor Hagin
August 29, 2012
Page 4 of 4
Please refer to the enclosed inspection report for additional observations and comments. If you
or your staff have questions related to this letter or the enclosed report please do not hesitate to
contact me at (910) 433-3303.
Sincerely,
Paul E. Rawls
Environmental Program Consultant
PER/pr
Enclosure: Compliance Evaluation Inspection Report
cc: Roy Lowder, ORC, Town of Parkton Collection System
Fayetteville Reg onaL Office •Files; Hug hie: White
DWQ Central Files =
United States Environmental Protection Agency
EPA ^ Washington, D.C. 20460
raj Water CQmpIlanre Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8 31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 I N I 2 1 51 31 NC0026921 1 11 121 12/08/16 1 17
Type Inspector Fac Type
18I C I 191 S 1 201 1,
1 1 1 I I I 1 1 1 1 1 1 1 1 1 166
Remarks
211 1 1 1 1 1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---Reserved-------
671 1 69 701 31 711 1 721 N 1 731
1 1 74 751 1 1 1 1 1 1 1 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Parkton WWTP
Loop Rd
Parkton NC 28371
Entry Time/Date
11:30 AM 12/08/16
Permit Effective Date
10/01/01
Exit Time/Date
04:15 PM 12/08/16
Permit Expiration Date
14/07/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Roy Lemuel Lowder/ORC/919-542-8270/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Larry G Hagin,PO Box 55 Parkton NC 28371//910-858-3360/ 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
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
Paul E Rawl Division of Water Quality/Q-1-9..Z33-5.08
Q,
Date
/
<133 3,3c3 a�-ao� Z
to
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Belinda S Henson . FRO WQ//910-433-3300 Ext.726/ 7 l - 1 2
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1
NPDES yr/mo/day Inspection Type (cont.) 1
3, NC0026921 I1 12I 12/08/16 I 17 181CI
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The Town of Parkton was found to be in compliance with Permit NC0026921 but there are several
recommendations the Town is urged to consider.
Please note that a response to this report is required.
•AII requested log books and records were present and available upon request.
•The Wastewater Treatment Facility (WWTF) Backup Operator was noted as Mr. Keith Young.
- Influent Manual Bar Screen: The WWTF currently is equipped with a manual influent bar screen. The unit
is showing signs of wear but appears to be functioning adequately.
• Grit Removal: Currently the Town's WWTF is not equipped with grit removal. Failure to remove grit can
lead to excessive accumulation of sand/solids. Large quantities of sand/solids can cause excessive pump
wear, increased maintenance costs and in some cases cause violations of the NPDES permit. Sand/solids
accumulation is discussed further below. Mr. Lowder indicated that the Town had recently applied for grant
money that in part was to be directed to the addition of grit removal. Mr. Lowder stated that the Town had
not been awarded the grant and therefore does not have the funds necessary to repair and/or modify the
WWTF. The Town is urged to continue to seek funds to repair and/or modify the WWTF and collection
system.
• Oxidation Ditches: The facility is equipped with two oxidation ditches. As the WWTF does not have grit
removal and is plagued with Infiltration/Inflow (I/1) the upper ditch was checked for sand/solids
accumulation. The check was performed by stopping aeration long enough to check the unit with a "Sludge
Judge". The unit was checked at +/- six points. Solids/sand was measured ranging from several inches to
over 2 feet in depth. As the water depth of the ditch is believed to be approximately 4 feet much of the
treatment capacity of the unit is being lost with settled sand/solids.
Excessive accumulations of sand can eventually cause permit violations. The Town is urged to clean both
oxidation ditches as soon as possible to avoid compliance issues.
It was also noted that the control gate that regulates the liquid level in the #1 oxidation ditch (upper ditch)
currently does not function correctly. The gate will not close completely. The gate is key to regulating
aeration in the unit. (Please note that Mr. Lowder stated that the D.O. level in ditch #1 averages +/- 5.0 mg/I
and ditch #2 +/- 2.0 mg/I) The Town is urged to repair the gate as soon a possible.
• Clarifiers: The facility is equipped with two secondary clarifiers. Some accumulation of what appeared to
be algae was noted on the effluent weirs, but not deemed to be excessive. Algal growth is typically
controlled by weekly cleaning of the effluent weirs.
Page # 2
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
• Return Activated Sludge (R.A.S.) pumps/valves. It was noted that the valves that control R.A.S. or the
wasting of solids were inoperable (both clarifiers). It was noted that Mr. Lowder has developed a "work
around" strategy to manage solids. He indicated that while operating the facility in this manner is difficult he
does not believe that compliance is currently compromised. As solids management is key to compliance
the Town is urged to repair these valves as soon as possible.
R.A.S. pumps were checked during the inspection and appeared to be operable.
RAS/WAS check valves should be checked to ensure proper operation.
•Disinfection: As noted above Mr. Lowder indicated that the Town had recently applied for grant money that
was not awarded. The grant money reportedly would have been in part for the modification of the
chlorination basin. Mr. Lowder stated that while the gaseous chlorination unit is flow paced the current
design of the contact basin does allow for proper retention time.
Failure to properly disinfect can cause or contribute to fecal coliform violations.
Also please note that the Town has had several effluent toxicity violations over the past few years. Please
be advised that improper chlorination can also potentially cause or contribute to toxicity violations.
• De -chlorination: The Town currently uses calcium thiosulfate ("Captor") to de -chlorinate effluent. It should
be noted that de -chlorination is not flow paced. It is suggested that the Town install flow paced
de -chlorination to prevent over dosing of de -chlorination agents that can cause or contribute to effluent
toxicity violations and also save the Town money.
•Effluent flow meter: The effluent flow meter appeared to be operational and calibrated within the last
twelve months. It should be noted that during periods of excessive flow the meter may "peg out" thus
producing inaccurate flow readings. Please note that accurate flow data is important for proper effluent
disinfection (disinfection is flow paced based on data from the effluent flow meter) and. that flow data is
used, in part, to check and design various components of the VVWTF.
• Aerobic digester: Reportedly the unit is primarily used for settling of solids.
• Sludge Drying Beds: It was noted that vegetation has begun to grow on the sludge drying beds. The Town
is urged to keep the beds free of excessive vegetation. It is acknowledged that the Town has limited staff
but if vegetation becomes established in the drying beds it can prevent the proper function of the units and
make cleaning very difficult.
The;_Town currently disposes of dried sludge in the county la'fill.
The Town is reminded that the operation of the beds should be performed in keeping with acceptable
practices.
• General Comment: It was noted that much of the metal components of the facility are in needof basic
maintenance. It is recommend that these components be painted when possible to prevent more costly
repair in the future.
•A quality assurance check of Discharge Monitoring Report data, field and commercial lab data and
chain -of -custody information was performed with no issues noted.
1'
Page # 3
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
Many of the items noted in this report have either been documented in previous reports or previously
discussed with the Town. The Town is asked to develop a plan -of -action (POA) to address the items noted
as well as any other repairs, modifications and/or additions deemed necessary.
The POA should include at a minimum but not necessarily be limited to the following:
1.Items or units identified as needing maintenance,
2.Items or units identified as needing modification,
3. Prioritization of each item noted above in the order of importance to consistently meet compliance.
4.Ability of the Town to fund maintenance and/or modification with municipal funds. This items should
include an estimate of municipal funds that can be directed to WWTF needs on an annual basis,
5.Outline attempts to obtain grant and/or loans over the past three years.
The Town is asked to provide the requested POA on or before December 3, 2012.
Page # 4
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
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 Solids, pH, DO, Sludge
Judge, and other that are applicable?
Comment: As with all wastewater treatment facilities a good process control plan can
assist in long term compliance.
Permit
(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:
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: See Summary Section of this report.
Bar Screens
Typeof 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?
Is the unit in good condition?
Comment: See Summary Section of this report.
Screenings are taken to landfill
Grit Removal
Type of grit removal
a.Manual
■ nnn
■ nnn
Yes No NA NE
n n■n
■ nnn
n n■n
■ nnn
■ nnn
Yes No NA NE
■ nnn
■ nnn
■ nnn
n nn■
Yes No NA NE
■
n
■ nnn
■ nnn
■ nnn
■ nnn
Yes No NA NE
n
Page # 5
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
Grit Removal
b.Mechanical
Is the grit free of excessive organic matter?
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
Comment: FACILITY DOES NOT HAVE GRIT REMOVAL
See Summary Section of this report.
Oxidation Ditches
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?
Is the DO level acceptable?
Are settleometer results acceptable (> 30 minutes)?
Is the DO level acceptable?(1.0 to 3.0 mg/I)
Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes)
Comment: See Summary Section of this report concerning comments about these
units.
Secondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth)
Yes No NA NE
n
n nn■
n nn■
n nn■
Yes No NA NE
■ nnn
Florin
■ nnn
■ nnn
■ nnn
n nn■
■ nnn
n nn■
Yes No NA NE
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
Page # 6
7.4
.;r
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
Secondary Clarifier Yes No NA NE
Comment: See Summary Section of this report concerning comments about these
units.
Sludge blanket was checked during the inspection.
Depth of sludge in Clarifier #1 3 feet (8 foot side wall depth)
Depth of sludge in Clarifier #2 0.5 feet (6") (8 foot side wall depth)
Disinfection -Gas
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Is there adequate reserve supply of disinfectant?
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?
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)?
If yes, then is there a Risk Management Plan on site?
If yes, then what is the EPA twelve digit ID Number? (1000-
If yes, then when was the RMP last updated?
Comment:
De -chlorination
Type of system ?
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?
Are the tablets the proper size and type?
Comment: See comment in summary section of this report concerning this unit.
De -chlorination liquid ("Captor) is stored and pumped from an old composite sampling
unit. Care should be taken to prevent freezing during winter months.
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment:
Pumps-RAS-WAS
Are pumps in place?
Yes No NA NE
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
n n■n
n n■n
Yes No NA NE
Liquid
n n■n
■ nnn
■ nnn
n n■n
Yes No NA NE
■ nnn
Page # 7
Permit: NC0026921 Owner - Facility: Parkton WWTP
Inspection Date: 08/16/2012 Inspection Type: Compliance Evaluation
Pumps-RAS-WAS
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment: RAS/WAS check valves should be checked to ensure proper operation.
Aerobic Digester
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Comment: See Summary Section
Drying Beds
Is there adequate drying bed space?
Is the sludge distribution on drying beds appropriate?
Are the drying beds free of vegetation?
# Is the site free of dry sludge remaining in beds?
Is the site free of stockpiled sludge?
Is the filtrate from sludge drying beds returned to the front of the plant?
# Is the sludge disposed of through county landfill?
# Is the sludge land applied?
(Vacuum filters) Is polymer mixing adequate?
Comment: See summary section of this report
Standby Power
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Comment: ORC checks fuel level by sight/stick
Yes No NA NE
■ nnn
■ nn■
Yes No NA NE
■ nnn
■ nnn
■ nnn
■ nnn
■ nnn
Yes No NA NE
■ nnn
■ nnn
n ■nn
florin
i1nnn
n nn■
■ nnn'
n n■n
onion
Yes No NA NE
n ■ nn
■ nnn
■ nnn
n n■n
■ nnn
n HEW
■ nnn
Page # 8
Mayor
Larry G. Hagin'
Finance Manager / Town Clerk
Debra McNeill
Chief of Police
Tammy Lowery
Public Works Director
Roy Lowder
December 3, 2012
TOWN OF PARKTON
Post Office Box 55 / 28 West David Parnell St
Parkton, North Carolina 28371
Office: 910-858-3360
Fax: 910-858-9808
Mr. Paul Rawls
Environmental Program Consultant
North Carolina Division of Water, .. a1:
225 Green Street, Suite.714
Fayetteville, North Carolina'
RE: Wastewater System 1
ction
Town of Parkton, Nora aroma=
Dear Mr. Rawls:':
Alderman
Ai McMillan
Alf Parnell
Robin Hill
Benton Finley
Fran Meinert
As requested in your August:29', 201.2: °letterAo the Town :of; Pasktg .. following your
Compliance Evaluation .Inspections of our: WastewaterTreatment::,: Facility/(WWTF) and
Wastewater Collection :System, this letter is :intended :.to provide you. with :the Towi's`: Plan of
Action(POA),for.correcting:deficiericies in the system that were noted during your x spection.
Parkton's current (2012-2013):approved water and sewer system budget>iiicludes' $33,722
for equipment, maintenance, and.repairs to the Town's existing water and seWet systems. We
realize that thecosts: required toupgrade our sewer system as noted in your.Inspection 'letters
greatly exceed this: amount, and the Town has recently sought grant and loan.f nding'to. perform
these improvements;:'`°'
In early 2012, tle;Town_submitted a grant application to the North Carolina Clean Water
Management Trust Fund'roquesting assistance to upgrade: our. wastewater`_ collection system and
WWTF. Unfortunately,. the'"Town_ yas:notified; in; August :that`: our: project did not receive an
allocation due to limited available"
The Town subsequently authorizedthe submittal of a funding application to the North
Carolina Division of Water Quality (NCDWQ) Infrastructure Finance Section in September
2012, and we were pleased to learn that $1,000,000 was allocated to the Town, including
$500,000 in "principal forgiveness" funding. The Town intends to use this money to upgrade
the collection system and WWTF, including:
Mr. Paul Rawls .
December 3, 2012
Page 2 of 2
• Rehabilitate or replace all sewer service lateral piping in the Town in an effort to
reduce infiltration and inflow into the collection system
• Rehabilitate Lift Station No. 2 with a modern control panel and internal piping
• Install a new mechanical bar screen to replace the existing influent manual screen
at the WWTF
• Install a grit removal system at the WWTF
• Expand the existing chlorine contact basin to provide additional contact time and
flow -pace the existing dechlorination system
While the above items will address the Town's most critical wastewater needs, we
understand that additional improvements are necessary as noted in your letter. These are
primarily "maintenance" items, such as:
• Clean both oxidation ditches — the Town intends to perform this after the new grit
removal equipment is installed
• Repair the control gate in the #1 oxidation ditch
• Repair the return activated sludge and waste activated sludge valves (note that we
are currently able to manage solids without these valves being operational and
without compromising compliance)
Mr. Rawls, the Town of Parkton appreciates your support of our recent funding
application, and we will continue to actively seek funding opportunities as they become available
to address our wastewater needs. As always, if you have any questions, please do not hesitate to
contact me.
Sincerely,
Roy Lowder, Public Works Director
Town of Parkton
Cc: Larry G. Hagin, Mayor
Board of Alderman
Mike Apke, P.E., McGill Associates