NC0074268_201 Facilities Plan_19880901

/2a 7/J6'Z
DIVISION OF ENVIRONMENTAL MANAGEMENT
September 1, 1988
MEMORANDUM
TO: Allen Wahab
FROM: Randy Dodd 1)
SUBJECT: Gaston County 201 Facilities Plan
Project No. C370378-01
I have completed a review of the Gaston County 201 Facilities
Plan and would like to make the following comments.
- In Section III Discussions on Fishes & General Water
Quality, and Botanical are missing from the Environmental
considerations
- The plan calls for alum for chemical phosphorus removal.
Was biological phosphorus removal evaluated? In all likeli-
hood, biological removal is cost-effective.
- In Section IV, Page IV-3 states that there are 17 permitted
dischargers in the Crowders Creek Drainage Basin. According
to our files, there are 24 permitted dischargers.
- The Technical Support recommended effluent limits
BODS =
NH3-N =
NH3-N
D.O. _
TSS =
Fecal =
pH =
Lead =
13 mg/1
2 mg/1(summer)
10 mg/1(winter)
6 mg/1
30 mg/1
1000/100m1
6-9 SU
40 ug/1
are:
Total P = 2 mg/1
TRC* = 19 ug/1(mo. avg.)
TRC* = 37 ug/1(dly. max.)
Chromium = 80 ug/1
Cadmium = 3.5 ug,'1
Cyanide = 9 ug/1
Nickel = 90 ug/1
'TRC= Total residual chlorine
Technical Services is also recommending a quarterly chronic
testing requirement as a condition of the permit.
If there are any questions or comments, please contact me at
733-5083, ext. 511.
cc: Central Files

June 3, 1988
MEMORANDUM
TO: Ron McMillan, Supervisor
Mooresville Regional_ Office
Dennis Ramsey, Head
Technical Services Branch
FROM: Allen Wahab, Supervisor
Local Planning Management Unit
SUBJECT: Gaston County 201 Facilities Plan
Project No. C370378-01
Transmitted herewith is one copy of the subject 201 Plan
for the Regional Office and one copy for the Technical Services
Branch. These are for your files. Please return your comments
to this office.
jh
Enclosure
cc: LPMU
GPF