wq0032207_Regional Office Historical File Pre 2018

y, Governor
William
444444414 "V6'. V:11. I „
G, Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
!`40 \I' I ln; 20'7
Coleen H. Sullins, Director
Division of Water Quality
Honorable Harold Greene, Mayor
City of Locust
211 Towne Centre Drive
Locust, North Carolina 28097
November 13, 2007
NC DENR mrm
Surface Wcier Prof:,,
Subject: Application No. WQ0032207
Additional Information Request
Abi's Place Subdivision
Wastewater Collection System Extension
Stanly County
Dear Mayor Greene:
The Pretreatment, Emergency Response and Collection System Unit has conducted a preliminary review of the
subject permit application package. Additional information is required before we can continue our review.
Please address the attached items no later than December 13, 2007.
Please note that comments from the Regional Office are pending at this time, and additional requests may be
necessary to address these comments, Please be aware that you are responsible for meeting all requirements set
forth in North Carolina rules and regulations. Any oversights that occurred in the review of the subject
application package are still the responsibility of the applicant. In addition, any omissions made in responding to
the above items may result in future requests for additional information.
Please reference the subject application number when providing the requested information. Two copies of all
revised and/or additional documentation should be signed, sealed, dated, including a point -by -point response to
the items in the letter, and submitted to my attention at the address below. Please note that failure to provide this
additional information on or before the above requested date may result in your application being returned as
incomplete,
If you have any questions regarding this request, please do not hesitate ontact me at [phone],
extension 375. Thank you for your cooperation.
Environmental Engineer
cc: Ms. Dee Browder, Mooresville Regional Office, Surface Water Protection Section
Mr. Stephen Chambers, P. E., Chambers Engineering, PA, R. O. Box 1726, Albemarle, NC 28002
Permit Application File WQ0032207
Pretreatment, Emergency Respone & Collection Systems Unit
Location: 512 N. Salisbury St Raleigh, NC 27604
Internet: www ncwatenquality.org
1617 .Mail Service Center
Phone [phone]
Fax [phone]
An Equal Opportunity/Affirmative Action Employer - 50% Recyded/10% Post Consumer Paper
Raleigh, NC 27699-1617
Customer Service
1-877-623-6748
N°pTincarolina
,Naherally

City of Locust
Abi's Place Subdivision
Pressure Sewers
Application Number WQ0032207
Review Comments
November 13, 2007
General
1. Based on the A/E's certification in the Permit Application that all 15A NCAC 2T.0300
requirements regarding gravity sewers and force mains, and the Division of Water Quality's
Gravity Sewer Minimum Design Criteria adopted February 12, 1996 have been met, a review of
these items has not been performed. It shall be the permittee's responsibility to ensure the plans
and specifications meet the appropriate design criteria and rules. Final approval of these
documents will not imply approval of any variance from these criteria unless specifically
requested and granted. Failure to comply may result in penalties in accordance with North
Carolina General Statute 143-215.6A— 143-215.6C, construction of additional facilities, and/or
referral of the N.C. Professional Engineer to the licensing board.
2. Application, Part IV.5 - Please provide the permit number for the downstream sewer. It is
required so that the project certification can be verified. (No. is WQ0023594). Note that only a
partial certification has been received. Provide documentation to show that the portion where
this projects connects (and downstream thereof) has been certified.
3. Application, Part 1V.3 - The emergency storage value given here is not acceptable. As shown in
the calculations, 147 gallons above the alarm elevation is required. See attached reliability policy
and Plan Comment 6.b.
4. Application, Part V.4 - This indicates that the entire project is not subject to flooding. Provide a
letter signed and sealed by the engineer stating this fact and referencing the source of the
information.
5. The Watershed. Classification form has not been completed by the regional office as required.
6. Provide a sketch for the buoyancy calculations for the pump stations showing all relevant
dimensions used in the calculations.
Specifications
1. Section 02660
a. This applies to Water Main Construction. There is no similar section for Sewer Force
Main Construction. Confirm if this section is to apply to sewer construction, or provide
the appropriate section.
b. Part 1.1.B.3 - There is no Section 02224 in these specifications as noted here.
c. Part 1.1.B.12 - There is no Section 15114 in these specifications as noted here.
2. Section 11060, Part 3.1 - There is no Section 11005 in these specifications as noted here.
1

3. Section 15060, Part 3.6 - The regulatory vertical separation between water pipes and sewer pipes
is 18 inches.
4. Provide specifications for the ARVNacuum release valves.
5. Provide specifications for the required check valves.
Plans
1. Show match lines for all line continuations.
2. Show all fitting (valves, tees, reducers, etc.) in both the plan and profile views.
3. Sheet 4
a. 2-Way cleanouts are not recommended as they can flush solids back up the line. All
cleaning should be directed to moving solids from the system.
b. The required storm sewer separation is now 24 inches (15A NCC 02T .0305 (f)).
4. Sheet 6 - In -line cleanouts should be installed on both incoming lines at junctions.
5. Sheet 9, Thrust Block Detail - This is different from the detail on Sheet 10 (Sheet 10 omits the
reference to 1.5-inch pipe).
6. Sheet 11
a. The vent on the service line from the house is not required, only the pump station vent.
This vent must open 24 inches above the 100-year flood elevation. If retained the vent
must be equipped with an insect screen.
b. Pump Station Detail - Show the pump on and alarm elevations so that the emergency
storage can be verified.
c. Pump Station Detail - Label the ground surface elevation and note to slope away from
top.
d. Pump Station Detail - Note that the amount of concrete used for ballast can be reduced by
taking into account the weight of soil above the extended base.
e. Pump Station Detail - Indicate the material for the lift out chain.
f. Pump Station Detail - Show an insect screen on the pump station vent.
2

illirrr-
Policy for Meeting the Reliability Requirements of 15A NCAC 2T .O3O5(h)(1)(D) for
Pressure Sewers Utilizing Simplex Pump Stations
These rules require that multiple pumps be provided with the capacity to pump peak flow with the
largest pump out of service and to provide power reliability respectively. Simplex pump stations will
only be approved for single family residences, all other pump stations shall be required to meet these
rules. To help ensure protection from overflows for simplex pump stations, the following policy will be
implemented in lieu of requiring dual pumps and power reliability.
The first option for meeting reliability requirements is to provide 24 hours storage in the wet well above
the pump -on elevation as requested in the permit application. However, since this may add to the cost
and make installation difficult in certain areas, another option may be pursued.
Alternatively, the applicant may provide documentation regarding both power reliability and response
times for pump replacement.
In the case of power reliability, 3 years of power history data in the area from the power company must
be provided. The amount of storage required shall be equal to the duration of the longest power outage
(minus catastrophic events such hurricanes). Storage shall be provided above the pump -on elevation.
For response times, the applicant shall provide an estimate of the response time to replace a failed pump.
The estimate shall include time for answering after hours calls, travel time to maintenance shop,
preparing equipment to respond, travel time to site, and time to replace the pump. For existing systems,
the Permittee should indicate if they currently maintains a supply of pumps on hand at this time (a permit
condition). Also, personnel must be on -call 24 hours a day, 7 days a week as well as a phone number
with 24-hour answering service clearly posted on the pump station. Storage shall be provided above the
high water alarm. A minimum of 120 gallons of storage above alarm shall be included in the evaluation.
These storage requirement are not cumulative, rather, the storage which provides the Largest wet well
shall be specified.
3

Michael F. Easley, Governor
William G. Ross Jr„ Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
September 3.2007
HAROLD GREENE
CITY OF LOCUST
21 1 TOWNE CENTRE ©RIVE
LOCUST NC 28097
Subject: Acknowledgement of Application No, WQ00322t17
Abs Place Subdivision
Wastewater Collection System Extension
Stanly County
Dear Mr. Greene, Mayor:
The Division of Water Quality (Division) acknowledges receipt of your permit application and supporting
materials on August 30, 2007. This application package has been assigned the number listed above and
will be reviewed by Adrian Eaton.
The reviewer will perform a detailed review and contact you with a request for additional information if
necessary. To ensure the maximum efficiency in processing permit applications, the Division requests
your assistance in providing a timely and complete response to any additional information requests,
Please note at this time, processing permit applications can take as long as 60 - 90 days after receipt of
a complete application, To check on the status of an application, please visit
http://h2o,enr.state.nc.us(birns/Reports/reportsPermits.html.
The Division has recently reorganized. All sewer related matters are now handled through the
Pretreatment, Emergency Response and Collection Systems Unit under the Point Source Branch EXCEPT
FOR FAST -TRACK SEWER EXTENSION PERMITTING WHICH CONTINUES TO BE ADMINISTERED THROUGH OUR
REGIONAL OFFICES. The Unit is located on the 131h floor of the Archdale building in downtown Raleigh.
If you have any questions, please contact Adrian Eaton at 919-733-5083, extension 580, or via e-m
Adrian,[e-mail]. If the reviewer is unavailable, you may leave a message, and they will
respond promptly,
PLEASE REFER TO THE ABOVE APPLICATION NUMBER
Sincerely,
ey Ob Poupart
Supervisor
AKING INQUIRIES ON THIS PROJECT.
cc: Mooresville Regional Office, Surface Water Protection Section
Stephen Chambers, PE Chambers Engineering, PA, PO Box 1726 Albemarle, NC 28002
Permit Application File W00032207,
One
thCarolina
Noaturally
Pretreatment, Emergency Response and Collection Systems Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Telephone [phone] Fax [phone]
Internet httpJ/h2o.enr.nc.state.uslndpu
An Equal Opportunity Action Employer
O f recycled/10% post -consumer paper