NC0049867_Headworks Analysis_20200615

Town of Cleveland
302 East Main Street
P.O. Box 429
Cleveland,NC 27013
[phone]
June 10,2020
RECEIVED
JUN 15 2020
Mr. Monti Hassan NCDEQ/DWRJNPDES
NCDENR Division of Water Resources
1617 Mail Service Center
Raleigh,NC 27669-1617
Subject: Revised STMP 2020
Dear Mr. Hassan:
Enclosed please find a copy of the revised Short Term Monitoring Plan for the Town of
Cleveland. The plan was revised to reflect current detection concentration changes as noted
in the Practical Quantitation handout.
Please contact myself or our pretreatment coordinator, Barbara Sifford, with any questions
you may have. I can be reached at 704-278-4777 and Ms.Sifford can be reached at 704-279-
8252 or by email at legacy2007(a�windstream.net.
Sincerely,
Patrick Phifer
Mayor
Enc

Town of Cleveland
Headworks Short Term Monitoring Plan
A. Sampling Points(Table 2)
I -Influent-prior to mixing with side streams-using regular composite sample
collected for NPDES monitoring and STMP sampling
2 -Effluent-after all treatment including dechlorination-use regular composite sample
collected for NPDES monitoring and STMP sampling
3 -Activated Sludge Basin—garb samples taken from each of the two aeration basins
4 -Sludge to Disposal- sample sludge going to final disposal at land application site
5 - SIUs—locations described in IUPs,at present only one SIU is releasing to the
Town
B. Pollutants of Concern(POC):
NPDES-POTW NPDES Permit limit
Sludge-40 CFR 503 Sludge Land Application
EPA-EPA Required
IUP- SIU Industrial User Permit Limit
Table I
Parameter POC NPDES 40 CFR 503 Sludge EPA,NC SIU
List Required Required Required Limitec
Pollutants Pollutants Pollutants Pollutan
with limits
BOD X X X
TSS X X X
NH3N X X
X X
Cd X X X X
Cr X X X X
cu X X X X
TCN X X
X X X X
X X X
X X X
X X X X
X X X
X X X
P age

Town of Cleveland
Headworks Short Term Monitoring Plan
Zn X X X X
Flow X X X X
X X X
C.Flow
The monitoring points are illustrated on table 1. The effluent flow is monitored and recorded
during each sampling event and is used for all flow calculations in the Headworks Calculation.
Flow for the sludge to disposal is determined from the sludge taken from the digestor basin to be
land applied. These numbers are provided by the contract land application operator and are
recorded in the annual land application report.
D. S1U Monitoring
Pollutant Influent Effluent Aeration Sludge SIUs Uncontrollable
BOD
TSS
Cd
Cr
cu
Pb
Se
P age

Town of Cleveland
Headworks Short Term Monitoring Plan
Zn
Flow
%solids
Significant Industrial User(ISU)Monitoring is conducted according to the permit issued to each
SIU. Data collected by both the POTW and the SIU's self-monitoring samples is used. The
frequency of the SIU sampling is conducted in accordance with the permit issued to the SIU.
E. STMP Sampling Frequency:
Table 2
Sam ling Point 18 Months Prior to HWA Due Date
1 .influent Quarterly on a Workday and per NPDES requirement
2 .Effluent Quarterly on a Workday and per NPDES requirement
3. Activated Sludge Basins Once per basin
4. Sludge to disposal Per Land Application Permit
5 -SIU s Quarterly Per SIU Permit
And POC's once
6—Uncontrollable Determined Quarterly(Influent minus SIU)
F. Sampling Plan
G.Detection Level and Sample Method
P.O.C. Detection Level mg/1 * Sample Method**
BOD 2 24hr
Composite
TSS 2.5 24 hr
Composite
NH3 as N 0.1 24 hr
Composite
0.01
Cd 0.0005 24 hr
Composite
Cr 0.010 24 hr
Composite
Cu 0.002 24 hr
Composite
CN 0.005 Grab
P age

Town of Cleveland
Headworks Short Term Monitoring Plan
H-effluent I n I(method 1631 Grab
Hg-all other 0.0002 (method 24 hr Composite
locations 245.
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.
•
*** Mercury for the Effluent will be analyzed by method 1631.All other sampling points will
measure Mercury by method number 3112B.
P age

Town of Cleveland
Headworks Short Term Monitoring Plan
H. WWTP Diagram
Uncontrollabl O Industrial O
Infl entoigester '�
Aerobic
Supernatant
Digester
Bar Screen _
putter
Box
I
` Sludge
o waste
3
AB 1 J p AB2
'
Clarifier 1 ► Clarifier 2
Chlorine-Dechlor
J Sampling Points
Parshal 1. Influent(prior to all Side streams!)
Flume 2. Effluent(after d €h1I®fination)
3. Activated Sludge&il§Ins ABI &AB2
4. Sludge to Disposal
5. Industrial
6. Uncontrollable
Sludge to
Disnosal