NC0039331_Authorization to Construct_20050831

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BONLEE ELEMENTARY SCHOOL WWTF
CHATHAM COUNTY
AUTHORIZATION TO CONSTRUCT
PERMIT NUMBER: 093.3_1-1
43-1A0
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ENGINEER'S CERTIFICATION
I, G. Dallas Brickhouse, Jr., as a duly registered
Professional Engineer in the State of North Carolina, having
been authorized to observe periodically the construction of the
Wastewater system serving the Bonlee Elementary School, located
in Chatham County, hereby state that to the best of my
abilities, due care and diligence was used in the observation of
the following construction:
Recirculating sand filter upgrade including a new drip
distribution system, 1800 sq. ft. sand filter, distribution
box, 3,000 gallon pump station, and filtration system in
conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by
the Department of Environment and Natural Resources.
I certify that the construction of the above referenced
project was observed to be built within substantial compliance
and intent of the approved plans and specifications.
Signature: •X g e istration No. SC
i
Date: IV,_317
Mail the certification to: DENR/DWQ
Construction Grants and Loan Section
1633 Mail Service Center
Raleigh, NC 27699-1633
RECEIVED
OCT 11 2005
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Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
�O .0 Alan W. Klimek, P.E., Director
Division of Water Quality
June 22, 2004
Mr. Larry Mabe, Superintendent
Chatham County Schools
P.O. Box 128
Pittsboro, North Carolina 27312-0128
Subject: Authorization to Construct Permit Issuance
ATC Number 039331A01
NPDES Permit NCO039331
Chatham County
Dear Mr. Mabe:
A request for an Authorization to Construct (ATC) was received by the Division and final
plans and specifications for the subject project have been found to be satisfactory.
Authorization is hereby granted for construction activities at Bonlee Elementary School. This
ATC is specifically issued for the following construction activities:
• A new 3,500 gallon tank with dual turbine pumps;
• Two (2) pre -filter pressure gages;
• Two (2) 400 micron filters;
• Two (2) post -filter pressure gages;
• One (1) 1. 5-inch totalizing flow meter;
• One (1) new 30' by 60' sand filter with new sand and drip lines;
• Installation of a 6" underdrain for the new filter;
• A new distribution box for effluent flow splitting; and
• And all necessary piping, valves, and appurtenances.
This Authorization to Construct is issued in accordance with NPDES Permit No.
NCO039331 issued October 31, 2001, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in the permit.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water
Quality.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
wastewater treatment or disposal facilities.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified water pollution control treatment system operator to be in responsible
charge (ORC) of the water pollution control treatment system. The operator must hold a
certificate of the type and grade at least equivalent to or greater than the classification assigned
to the water pollution control treatment system by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to
comply with the conditions of Title 15A, Chapter 8G, .0202. The ORC of the facility must visit
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

Permit No. NCO039331
Bonlee Elementary School WWI?
June 22, 2004
each Class I facility at least weekly and each Class II, III, and IV facility at least daily, excluding
weekends and holidays, and must properly manage and document daily operation and
maintenance of the facility and must comply with all other conditions outlined in Title 15A,
Chapter 8G, .0204. Once the facility is classified, the Permittee must submit a letter to the
Certification Commission which designates the operator in responsible charge within: (A) Sixty
calendar days prior to wastewater being introduced into a new system or (B) within 120
calendar days of the following, (i) after receiving notification of a change in the classification of
the system requiring the designation of a new ORC and back-up ORC or (it) a vacancy in the
position of ORC or back-up ORC.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
The Operational Agreement between the Permittee and the Environmental Management
Commission is incorporated herein by reference and is a condition of this Permit.
Noncompliance with the terms of the Operational Agreement shall subject the Permittee to all
sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the
terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Operate may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Operate does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed
by other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Mr. Mark McIntire, P.E.,
telephone number [phone], extension 508.
Sincerely,
4-man W. Klimek, P.E.
cc: Central Files
NPDES Unit, Permit File
Raleigh Regional Office, Water Quality
Training and Certification Unit

SOC PRIORITY PROJECT: Yes: No: x
If Yes, SOC No.:
To: Water Quality Point Source Unit
Attention: (Mark McIntire)
AUTHORIZATION TO CONSTRUCT
�39331��/
NPDES PERMIT
REPORT AND RECOMMENDATIONS
Date: April 12, 2004
County: Chatham
Permit No.: NCO039331
PART I - GENERAL INFORMATION
1. Facility Name and Current Address:
Bonlee Elementary School
NCSR 1139
Bonlee, NC
2. Date of most recent NPDES Staff Report: 8/01
3. Changes/events since previous action on NPDES
Permit:
12/13/02 — Notice of Violation and Assessment
11/15/02 — Notice of Violation and Assessment
2/6/02 — Notice of Violation and Assessment
12/1/01— Effective date of current NPDES permit (expires 10/31/06)
4. Verify Discharge Point(s) on plans with current
NPDES Permit. List for all discharge points:
Latitude: 35038` 36" Longitude: 79' 25` 26"
(Coordinates have been changed slightly from permit based on site visit
and using topozone. BIMS coordinates have been changed.)
USGS Quad No. : E21NW USGS Quad Name: Siler Cite
5. Treatment plant classification (attach completed
rating sheet) : Wastewater— Grade I
APR 1 5 2004
I

PART II - DESCRIPTION OF DISCHARGE AND
TREATMENT WORKS
(PROVIDE THE FOLLOWING INFORMATION IF IT IS NOT ON THE PREVIOUS
NPDES STAFF REPORT)
1. Existing treatment facility
a. What is the current permitted capacity of
the facility? 0.007 mgd
b. Date(s) and construction activities allowed by
previous Authorizations to Construct issued in
the previous two (2) years: none
C.
d. What is the actual treatment capacity of the
current facility (design volume) ? 0.007 mgd
d. Please provide a description of existing or
substantially constructed wastewater treatment
facilities: 1000 gallon septic tank with bell siphon, 60' x 30'
recirculating sand filter, 2000-gallon pump tank, 2000-gallon
recirculation tank, and 3500-gallon recirculation tank, and
ultraviolet disinfection system. The pump tank and two
recirculation tanks are interconnected to form one large tank.
2. Please provide a description of proposed wastewater
treatment facilities: 1000 gallon septic tank with bell siphon
(existing), 3500 gallon tank (existing), 2000 gallon tank (existing), 3500 gallon
tank (new) with dual turbine 1.5 hp pumps, two (2) pre -filter pressure gages,
two (2) 400 micron filters, two (2) post -filter pressure gages, one (1) 1.5-inch
totalizing flow meter, valves and piping associated with filters and gages in
control building, two (2) 30' by 60' sand filters (existing lines/distribution
system to be replaced with new drip lines/distribution system), 12 inches of
existing sand to be replaced with 12 inches of new sand, 6-inch underdrain
line (existing), 6-inch underdrain line (new in new sandfilter), 2-inch PVC
flush lines with 2-inch PVC ball valves for flushing drip lines, distribution
box, 2000 gallon tank with dual turbine 1.5 hp pumps and controls (moved
from other existing 2000 gallon tank), UV disinfection to discharge.

3. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please
specify DEM Permit No.:
Residual Contractor:
Telephone No.:
b. Residuals stabilization: PSRP PFRP Other
C. Landfill:
d. Other disposal/utilization scheme (Specify):
Septic tank is pumped every six months.
4. Important SOC, JOC or Compliance Schedule dates, if
applicable: (Please indicate) NA
Submission of Plans and Specifications:
Begin Construction:
Complete Construction:
PART III - EVALUATION AND RECOMMENDATIONS
On October 7, 2003, Paul Clark visited the site with Bob DeWeese and Darrell Cole
(ORC). Paul Clark noted the following during his review:
- The proposed system calculations were based on a permitted flow of 6000
GPD and not 7000 GPD as indicated in the permit.
- The incorrect Recirculation Pump Tank number is denoted in the plans
dated 1/18/04.
Bob DeWeese corrected these problems and the revised information is attached to
this staff report.
As was stated above in this staff report, discharge location coordinates have been
changed slightly from permit based on site visit and using topozone. BIMS
coordinates have been revised to reflect this updated information.
Following review by the central office staff, the Raleigh Regional Office
recommends issuance of the Authorization to Construct.
Signature of report preparer:
i
Water Quality Regional Supervisor:
Date: '`�"� +31d `

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