WQ0009633_Sewer Application_19940711

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Monty Crump, City Manager
City of Rockingham
311 East Franklin Street
Rockingham, North Carolina 28379
Dear Mr. Crump:
AT.W?FA
AM
ID E H N F1
July 11, 1994 1 �' JUL
Subject: Application No. WQ0009633
Additional Information Request
City of Rockingham
Laurel Hill Pump Station
Sewer Extension
Richmond County
The Permits and Engineering Unit has completed a preliminary engineering review of the subject
application. The following items must be addressed before we can complete our review:
1) On February 1, 1993, the Division adopted new regulations that require that the
infiltration/exfiltration rate must not exceed 100 GPD per inch of pipe diameter per mile of
pipe. All sewer extension permit applications received on or after February 1, 1993, must
conform to these new regulations. Please revise page 4 of your gravity sewer application to
reflect these changes. Please be advised that the Division is in the process of revising the
application forms to reflect the new regulations.
2) In accordance with 15A NCAC 2H .0219 (h) (4) and (5), please provide a screened vent for
the wet well. Please make the appropriate revisions on the applicable sheet(s) of your plans
and forward 3 complete signed and sealed copies of each revised page to my attention.
3) Please revise the following sections of the specifications to comply with the Division required
infiltration rate of 100 GPD per inch of pipe diameter per mile: 1) page 02650-1 and 2) page
02655-2. If any other sections of the specifications are also in error, please revise and forward
3 complete signed and sealed sets of specifications to my attention.
4) The Division requires that at all stream crossings, either the top of the pipe be below the stream
bed (at least three feet unless ferrous material pipe is used) or that the bottom of the pipe be
above the 25 year flood elevation. Please provide the 25 year flood elevation on sheet 5 of
your plans to confirm compliance with this requirement. If 25 year flood information is not
available, or if the aerial crossing is not above this elevation, please provide written
confirmation from the applicant that no damage will be incurred by upstream or adjacent
properties due to this aerial crossing, and that the crossing will be properly inspected and
maintained. If necessary, please provide 3 signed and sealed copies of the revised plans to
comply with the above requirements.
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5) Please recheck your calculation of the length of force main proposed. After recalculating,
please submit 3 copies of page 5 of the application (with number 11 revised) to my attention.
6) In accordance with 15A NCAC 2H .0219 (1) (1), the Division requires that flow estimates be
calculated using the methods outlined in 15A NCAC 2H .0219 (1). Please recalculate your
flow estimate using the approved values and submit 3 copies of the revised page 2 to my
attention.
Refer to the subject permit application number when providing the requested information. Please
submit three (3) copies of all information to my attention at the address below. Also,
please note that failure to provide this additional information on or before August 11, 1994s will subject
your application to being returned as incomplete, in accordance with 15A NCAC 2H .0208.
If you have any questions on this matter, please call me at [phone], ext. 580.
Sincerely,
-
Buzz Crosby
Environmental Technician
State Engineering Review Group
cc: Fayetteville Regional Office
Permit File WQ0009633
Hayes, Seay, Mattern & Mattern, Inc.