NC0021709_Short Term Monitoring Plan_20180309

Town of Jeffers W a er R eot i rce'
1233 Highway 16 South P.O. Box 67 Jefferson, NC 28640 336.246.2165
"Protect-maw the,Nev R,Aver $cwei#."
Cathy Howell, Town Manager Tim Church, Director
March 9, 2018
NC Division of Water Resources
PERCS Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
ATTN: Vivien Zhong
SUBJECT: Town of Jefferson WWTP/ NPDES NC0021709
Headworks Short Term Monitoring Plan (Updated)
Dear Ms. Zhong:
Please find enclosed the Town of Jefferson WWTP Headworks Short Term Monitoring
Plan which has been updated based on the recent renewal of NPDES Permit
NC0021709, effective February 1, 2018.
Questions or comments may be directed to me at jeffwnsPcenturylink.net or by phone
at [phone]. Thank you for your assistance to the Town of Jefferson Water
Resources as we continue to protect the waters of the New River Basin.
Respectfully,
iiirrt- Citi
Tim Church, Water Resources Director
Town of Jefferson
encl: STMP
[e-mail]

Town of Jefferson WWTP
Headworks Short Term Monitoring Plan
A. Sampling Points(See Figure 1)
1 - Influent-prior to mixing with side streams-use regular composite sample collected
for NPDES monitoring
2 - Effluent-after all treatment including chlorination-use regular composite sample
collected for NPDES monitoring
3 - Activated Sludge Basin-collect a grab sample from each basin-combine these into
one sample using a portion of each according to volume of WWTP flow
4 - Sludge to Disposal-sample sludge going to final disposal
5 - SIUs—locations described in IUPs
6 - Uncontrollable—collect composite samples at point in collection system that serves
residential, commercial(including dentists and other medical), and any
unpermitted non-SIUs. If more than one location is needed to ensure
representative data, sampling will be rotated
B. Pollutants of Concern(P.O.C.) Reason for Inclusion:
NPDES -POTW NPDES Permit limit
Sludge-40 CFR 503 Sludge Land Application
EPA-EPA Required
IUP- SIU Industrial User Permit Limit
POC NPDES 40 CFR 503 Sludge EPA,NC SIU
List Required Required Required Limited
Pollutants Pollutants Pollutants Pollutants
Flow Flow Flow
BOD5 BOD5 BOD
TSS TSS TSS
NH3
As As
Cd Cd Cd Cd
Cr Cr Cr
Cu Cu Cu Cu
CN
CN
Pb Pb Pb Pb
Hg Hg
Mo Mo _
Ni Ni Ni Ni
Ag Ag
Se Se
Zn Zn Zn Zn
TP TP
Oil&Grease Oil &Grease
% Solids % Solids
Sludge to Sludge to disposal
disposal flow flow
Al
File NameModel_LTMP_STMP_July 2004 Page 1
Printed: March 8,2018, 4:30 PM
Modeled after: Chapter 4,Appendix 4-A. Division Model Revision Date: July 29,2004

s Town of Jefferson WWTP
Headworks Short Term Monitoring Plan
C. Flow
Flow monitoring points are indicated on the attached facility diagram, see Figure 1. Flow at
effluent(Pt. 2)and SIUs(Pt. 5)will be monitored during sampling events. Flow or volume of
sludge to disposal(Pt. 4)can either be monitored or calculated.
D. SIU Monitoring
Significant Industrial User monitoring will be conducted per industrial user permit(IUP).
Additionally,extra SIU sampling will be performed such that all SIUs are sampled for all LTMP
(or STMP)POCs at least once per year.
E. STMP Sampling Frequency(for Modified Programs)
Sampling Point Year before HWA Other years
•
1-Influent Quarterly on a Workday and per
NPDES requirement
2—Effluent Quarterly on a Workday and per
NPDES requirement
3 —Activated Sludge Basin Once
4- Sludge to Disposal Per Sludge Permit and 503
regulations
5 - SIU's Per SIU Permit
And POC's once
6—Uncontrollable Quarterly
F. Sampling Plan
Pollutant Influent Effluent Aeration Sludge SIUs Uncontrollable
(Pt. 1) (Pt. 2) (Pt. 3) (Pt.4) (Pt. 5) (Pt. 6)
BOD X X X X
TSS X X X X
NH3 as N X X' X X
As X X
Cd X X X X X X
Cr X X X X X X
Cu X X X X X X
CN X X X X X
Pb X X X X X X
Hg X X X
Mo X
Ni X X X X X X
Se X X
Ag X
Zn X X X X X X
Oil&grease X X X X
Flow X X X
%solids X X
File NameModel_LTMP_STMP_July 2004 Page 2
Printed: March 8,2018, 4:30 PM
Modeled after: Chapter 4,Appendix 4-A. Division Model Revision Date: July 29, 2004

• Town of Jefferson WWTP
Headworks Short Term Monitoring Plan
G. Detection Level and Sample Method
P.O.C. Detection Level (mg/l) * Sample Method **
BOD 2 24 hr Composite
TSS 2.5 24 hr Composite
NH3 as N 0.1 24 hr Composite
As 0.01 24 hr Composite
Cd _ 0.002 24 hr Composite
Cr 0.005 24 hr Composite
Cu 0.002 24 hr Composite
CN 0.01 Grab
Pb 0.01 24 hr Composite
Hg-effluent 1 ng/l (method 1631) Grab
Hg-all other 0.0002 (method 245.1) 24 hr Composite
locations
Mo 0.1 24 hr Composite
Ni 0.01 24 hr Composite
Se 0.01 24 hr Composite
Ag 0.005 24 hr Composite
Zn 0.01 24 hr Composite
Oil & Grease 5 Grab
Sampling, preservation, and analytical method must be from 40 CFR 136.
* Graphite Furnace Determinations are required to attain the desired detection level for the
metals. However, analysis of Aeration Basin and Sludge to Disposal samples often cannot meet
these detection levels. In this case, analysis of these samples must obtain a detection level at
least as stringent as the applicable inhibition criteria or sludge ceiling standard.
** All Aeration Basin and Sludge to Disposal samples will be grab.
File NameModel_LTMP_STMP_July 2004 Page 3
Printed: March 8,2018, 4:30 PM
Modeled after: Chapter 4,Appendix 4-A. Division Model Revision Date: July 29,2004

V
Town of Jefferson WWTP VIII
Headworks Short Term Monitoring Plan
SAMPLE POINT 1
WET BAR SCREEN
WELL
sT
af
a
�_ - SbDGE bP
DRYER CLARIFYER
=cc #1 •
r1
a
/ — rf1
V ( Pump' Station
V (sludge) 0
Z
DIGESTER E:
c!NA_ DICES-ER
SAMPLE POINT 4 v
E-4
4J
0
OX DA"; N DITCH ,,,,,N U]
SAMPLE POINT 2 p
V 3
f 3
_ Chlorination 1
k C.... �` and Dechlor.
O
N 1
u)
1 w
SAMPLE POINT 3
L 4_,
4_,)
, --,,,
CLARIFYER h
U#2
4-I
O
O
H