NC0035904_staff comments_19881003

DIVISION OF ENVIRONMENTAL MANAGEMENT
October 3, 1988
MEMORANDUM
TO: Dale Overcash
THROUGH: Steve W. TedderK. .
FROM: Ken Eagleson/
SUBJECT: Inclusion of Whole Effluent Toxicity Limitation in McCain Hospital
NPDES Permit (NC0035904), Hoke County
I have been contacted by Tommy Stevens of our Fayetteville Regional
Office who requested inclusion of toxicity limits for the subject permit.
This request was made based on recent effluent testing which indicated poten-
tial problems. Attached please find two recommendation forms for a six month
monitoring period and another for the final limit. Please contact me should
you need further information.
KE:ps
cc: Tommy Stevens
Carla Sanderson

1
5 coicQifirh arra
Facility Name e /A) /
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- Oyt SS L(1Y1 CC a-vt*.., .QT
(mom
0 •d l P /l/. Permit #
CHRONIC TOXICITY MONITORING REQUIREMENT (MONTHLY)
The permittee shall conduct chronic toxicity tests using test procedures outlined in:
1.) The Now Carolina cs,dgclubliiichronic effluent bioassay rcedure
Bioassay Procedure - Revised *February 1987) or subsequent ersiionns (North Carolina Chronic
The effluent concentration defined as treatment two in the North Carolina
-�L—°�• procedure document is
The permit holder shall perform
compliance with the�Y monitoring using this procedure to establish
issuance ofthis permit condition. The fast test will be performed within thirty days from
permit. 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
Discharge MonitoringForm permit condition will be entered on the Effluent
(MR-1) for the month in which it was performed, usingthe
code TGP3B. Additionally, DEM Form AT-1following (original) is to be sent to the follo 'n parameter
waddress:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supportingchemi h '
performed in association with the toxicity tests, as well as all dose/response data. T measurements
s
chlorine of the effluent toxicity sample must be measured and reported if Tom residual
disinfection of the waste stream. chlorine is employed for
Should any test data from this monitoring
nd�icate requirement or performed by the North Carolina
permit may be re -opened and modified to include alternate monitoring acts to the eceiving stream, this
g requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document,
control organism survival and appropriate environmental controls, shall contitute such an minimum
and will require immediate reteS�g(within 30 days of initial monitorin event and test
suitable test results will constitute a failure of permit condition.g ). Failure to submit
7Q 10 cfs
Permited Flow _OIL_ MGD
IWC%
Basin & Sub -basin Yid
Receiving Stream
County
Recomm
D
**Chronic Toxicity (Cerio) Monitoring at%, See 'art
Condition
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Facility Name YOSf1/4)7V/i0e-ftPermit # ��. C0 0
CHRONIC TOXICITY TESTING REQUIREMENT (MONTHLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina feriodaphnia chronic effluent bioassay roced (North Carolina Chronic
Bioassay Procedure - Revised *February 1987) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction
significant mortality is /% (defined as treatment two in the North Carolina or
document). The permit holder shall performprocedure
compliance with the permit condition. The t��o� ll using this procedure to establish
issuance of this performed within thirty days from
permit. 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
Discharge Monitoring Forni (MR-1) for the month in which it was perform using e paraEfflmeter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the performed,
address:
following ess:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical
performed in association with the toxicity tests, as well as all dose/response aa. Total measurements
chlorine of the effluent toxicity sample must be measured and reported if chlorine is residual
disinfection of the waste stream. employed for
Should any test data from this monitoring requirement or tests performed
Division of Environmental Management indicate potential impacts to the rebceivinNo� Carolina
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 documen such
control organism survival and appropriate � as minimum
pp priate 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 a failure of permit condition.
7Q 10 - i cfs
Permrted Flow / MGD Recommend- . .
IWC% p,
Basin & Sub -basin q p 5/
Receiving Stream
County
Date
**Chronic Toxicity (Ceriodaphnia) P/F at 'o, See Part , Condition .
eCtiVE; 6-)111S a((itre 1 SS Of CC
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