NC0021890_Wasteload Allocation_19930819

NPDES DOCUMENT SCANNIMU COVER SHEET
NPDES Permit:
NC0021890
Granite Falls WWTP
Document Type:
Permit Issuance
'
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 19, 1993
Thia document is printed on reuse paper - ignore any
content on the reverse aide

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0021890
pERMITTEE NAME: Town of Granite Falls
FACILITY NAME: Granite Falls WWTP
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Design Capacity:
_ Minor
0.75 MGD
Domestic (% of Flow):
Industrial (% of Flow):
I%
Co� nis:
NOZ 4V,0c1E W DS SgMP C-- t-oc.Aflof-J-
RECEIVING STREAM: Gunpowder Creek
Class: C
Sub -Basin: 03-08-32
Reference USGS Quad: D 13 SW (please attach)
County; Caldwell
Regional Office:_ Asheville Regional Office
Previous Exp. Date: 1/31/94 Treatment Plant Class: III
Classification changes within three miles:
None
Requested by: Greg Nizich 650 Date:
Prepared by: Date:
Reviewed by: Date: Q�
Modeler Date Rec. #
fH� 4 30 93
Drainage Area (miz) 3S Avg. Streamflow (cfs):�4
7Q10 (cfs) 61.3 Winter 7Q10 (cfs) 12- 30Q2 (cfs)—L7—
Toxicity Limits: IWC � % Acut Chronic Q GI-
Instream Monitoring: P%F-0/I0k
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
�o
NH3-N (mg/1)
MC i-k11-
D.O. (m€/1)
J`b
5. 0
TSS (mg/1)
30
30
F. Col. (/100 ml)
ZCr)
Zoo
pH (SU)
(-- l
(�—ol
ef. .s. kobr:K /
rn";
rvtoh "V
1l
Tu.vx. (OcD
yv 011 +r✓
MOrti+r/
T (r. I
rnoN h✓
Ho�i�o✓
noti O✓
Men or
LtAd /1)
wp"'"I"0✓
�oN;��✓
a"C' ll)
talon �o ✓
Wl0rt —or-
anict¢ /I
qS>
:omments: rya;ly mm;M "
X; t MA r' wwt
i
L�

FACT SHEET FOR WASTELOAD ALLOCATION
Request # 7516
_
Facility Name:
Town of Granite Falls/Granite Falls
9
NPDES No.:
NC0021890
r
s
Type of Waste:
Domestic - 99%/Industrial - 1%
Facility Status:
Existing
Jul-
2 $19M
Permit Status:
Renewal
Receiving Stream:
Gunpowder Creek
-
Stream Classification:
C
Subbasin:
030832
County:
Caldwell
Stream Characteristic:
Regional Office:
Asheville
USGS #
02.1417.8040
Requestor:
Nizich
Date:
1988
Date of Request:
6/30/93
Drainage Area (mi2):
35
Topo Quad:
D13SW
Summer7Q10 (cfs):
9.3
Winter 7Q10 (cfs):
12
Average Flow (cfs):
44
30Q2 (cfs):
17
IWC (%):
11
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
n
This facility has an inactive pretreatment program, so no additional monitoring for toxicants will
be given with the exception of lead This is required as a result of requirements by the EPA for all
POTW's with a pretreatment program (active or inactive) to monitor for lead. The fecal limit
should change to 200q/1100 ml. Whole -effluent toxicity testing will be continued at 11%.
SJ ecip a/l $c}ledule Requirements and additional comments from Reviewers: x
B Tr � �.Q�:Ca,j✓�
[-1064fed US' di9euit$�'�bs+ e� ou.F%I�,, IAti G: M/ir� DCi Dled.�oUHLA rt4
Recommended by;
Reviewed r...
Instream
Regional
Permits 8
RETURN TO TECHNICAL SERVICES BY: AUG 1 8 M
3

2
Existing Limits:
Wasteflow (MGD):
BODS (mg/1):
NH3N (mg/1):
DO (mg/l):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Temperature (°C):
TP (mg/1):
TN (mg/1):
Zinc (µg/1):
Cyanide (µg/l):
WET testing (Chronic' P/F):
Recommended Limits:
Wasteflow (MGD):
BODS (mg/l):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/l):
Temperature (°C):
TP (mg/1):
TN (mg/1):
Lead (µg/1):
Zinc (µg/1):
Cyanide (µg/1):
WET testing (Chronic P/F):
*Daily minimum
**Daily maximum
PARAMETERS
Monthly Average
Summer
Winter
0.75
0.75
30.0
30.0
10.0
monitor
5.0*
5.0*
30.0
30.0
1000:0
1000.0
6-9
6-9
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
45.0**
45.0**
@ 11 % (Mar, Jun, Sep, Dec)
Monthly Average
Summer Winter EL/WQ
0.75 0.75
30.0
30.0
EL
10.0
monitor
WQ
5.0*
5.0*
WQ
30.0
30.0
EL
200.0
200.0
6-9
6-9
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor
monitor monitor
monitor monitor
45.0** 45.0**
@ 11 % (Mar, Jun, Sep, Dec)
x Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.

INSTREAM MONITORING REQUIREMENTS*
Upstream Location: Gunpowder Creek approximately 50' upstream of the outfall
Downstream Location: Gunpowder Creek at Little Dam --� can a�''yf
Parameters: Fecal, Temperature, DO, Conductivity ©P°
fi7 ¢ p a'C
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adcquacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes _ No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?

Facility Name / iDAIJI ' Permit # Pipe #
CHRONIC TOXICITY .PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there maybe no observable inhibition of reproduction or significant mortality
is —//—% (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
uarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be
perf ed q er t rty days from the effective date of this permit during the months of
.� ,,i' eiict� 6 . Effluent sampling for this testing shall be performed at the NPDES
permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an. invalid test and will require immediate
retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10 cfs
Permitted Flow MGD
IWC / / %
Basin & Sub -basin 'r E>
Receiving Stream 6umPewou Crcen<....
County .a�W-UL11
Recommended by -,On' ,
Dater
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Page 1
Note for Dave Goodrich
From: Tom Poe
Date: Wed, Jul 14, 1993 3:52 PM
Subject: RE: GRANITE FALLS
To: Dave Goodrich
They are still Inactive Program as far as I, we, pretreatment knows.
If truly inactive, I do not see reason for extra monitoring
How ever they may not be 100% domestic, even though they are inactive
Check with region
From: Dave Goodrich on Mon, Jul 12, 1993 17:23
Subject: GRANITE FALLS
To: Tom Poe
I got this WLA from Jackie. Do they have an active program? If so, what do you want to
give them for monitoring requirements?

Ky
NPDES PRETREATMENT INFORMATION REDUEST FORM
:FACILITY NAME: 694rJiT'E FALLS W`I P NPDES NO. NCOO 1 1 I
;REQUESTER: %rep N'?%ck DATE: G/3f,/93 REGION: At/
PM= CONDITIONS COVERING PREPRFATMRr
,
This facility has no SIUs and should not have pretreatment language.
' This facility should and/or is developing a pretreatment program.
,
' Please include the following conditions:
Program Developrent
Phase I due
Phase II due / /_
Additional Conditions
— (attached) '
,
,
_ This facility is currently implementing a pretreatment program.
Please include the following conditions:
_ Program Implementation
i Additional Conditions
(attached)
SIGNIFICANT INDUSTRIAL USERS' (SIUs) CONTRIBUTIONS
SIU FLOW - TOTAL: MM
,
,
- ODDTCSITION: TEXTILE: MSD
METAL FINISHING: MGD
OTHER: wn
MGD
i — MGD
w
HEADWORKS REVIEW
PASS
PARAMETER :THROUGH DAILY LOAD IN LBS/DAY ACTUAL
AIIAWABLE DOMESTIC PERMITTED INDUSTRIAL % REMOVAL
Cd
Cr
Cu
Ni
Pb
Zn
CN
Phenol
Other
RECEIVED: / / REVIEWED BY: /),. S .--
RETURNED: 7 / r) /