NC0030783_Fact Sheet_20200518

DENR/DWQ
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit: NCO030783
2020 Renewal
This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets.
Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc.) that can be
administratively renewed with minor changes, but can include facilities with more complex issues (Special
Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns).
Facility and Stream Information
Applicant/Facility Name:
Caldwell County Schools Baton Elementary School WWTP
Applicant Address:
1914 Hickory Blvd SW; Lenoir, NC 28645
Facility Address:
1400 Baton School Road; Granite Falls, NC
Facility Class Permit Status:
Grade I Biolo 'cal WPCS Renewal
Permitted Flow
0.015 MGD
Type of Waste
100% Domestic
Receiving Stream
Stafford Creek
Stream Class ID
WS-IV 11-43- 1
7Q10 Sum Win cfs
0.06 0.14
30Q2 cfs
0.19
Avg. Stream Flow cfs
0.53
IWC %
28 %
Subbasin
03-08-31
USG S Too
D12SE Drexel, NC
County
Caldwell
I Regional Office
ARO
Basic Information for
Expedited Permit Renewal
Permit Writer / Date
Bradley Bennett / March 5, 2020
Does permit need daily max NH3 limits?
Already included in existing permit - see below
Does permit need TRC limits/language?
No - UV disinfection 2005 ATC
Does permit have toxicity testing?
No - NH3-N limits instead (1991 WLA)
Does permit have Special Conditions?
No
Does permit have instream monitoring?
None
Stream on 303(d) List? For w arameter?
No
Any compliance concerns?
See compliance discussion below
Any modifications since lastpermit?
None noted in application
New expiration date:
February 28, 2025
FACILITY OVERVIEW:
This facility is 100% domestic waste. The design capacity of the treatment system is 0.015 MGD and consists of
the following wastewater treatment components:
• 15,000 gallon septic tank with dual dosing
• Subsurface sand filters
• Wet well with dual alternating effluent pumps
• Dual UV disinfection systems
• Subsurface discharge pipe with an energy dissipater housed in a protective structure
No modifications were noted or proposed in the current application.
Most recent inspection (02/26/2019) found no significant issues and that the facility was well maintained and
operated.

COMPLIANCE:
There were no compliance actions during the permit cycle and there have been no enforcement actions since
2011 for this facility.
MONITORING DATA REVIEW:
Parameter Units
Avg.
High
Low
Permit Limit
Comments
Flow (MGD)
0.0039
0.006
0.001
0.015 MA
Avg. flow only 26% of permitted flow
BOD (mg/L)
1.87
12.2
1.0
30MA
No exceedances
45DM
TSS (mg/L)
6.64
27
1.25
30MA
No exceedances
45DM
Temp (C)
17.4
30.1
10.5
-
Values in line w seasonal variation
Fecal (#/100ml)
1.64
34
<1
200MA
No exceedances
10ODM
pH (SU)
N/A
8.9
6.1
6 to 9
All values within range
NH3-N (mg/L) summer
0.85
4.85
<0.20
3MA
15DM
11MA
See discussion below - proposed
NH3-N (mg/L) winter
1.29
6.5
<0.20
35DM
change to winter limits
MA - Monthly Average DM - Daily Max
The data reviewed for the renewal is from April 2015 through December 2019.
WET MONITORING:
Not required in the permit, permittee accepted NH3-N limit instead (see 1991 waste load allocation).
NH3-N MONITORING:
Current Requirement: 2/Month monitoring in Current Permit. Permit has summer limits
of 3 and 15mg/L (monthly average and daily max) and winter
limits of 11 and 35mg/L.
The NH3-N limit was set in 1991 to address potential toxicity issues rather than require WET
monitoring. The summer and winter limits were set based on the mass balance waste load allocation.
Recent review by Division staff has noted that 15A NCAC 2B .0404(c) requires that winter waste load
allocations for oxygen consuming waste be no less stringent than 2 times the summer waste load limit.
To meet this rule requirement winter limits for NH3-N are being adjusted in the permit.
The draft permit includes proposed changes to the winter limits. These changes will reduce the
monthly average limit to 6 mg/L and the daily max to 30 mg/L. A review of the monitoring data over
the permit cycle indicates that no winter NH3-N value has exceeded 6.5 mg/L, so the individual values
are well below the proposed daily max. In addition, no monthly values were above the proposed limit.
For all values reported during the winter period half of the values were actually below the 0.2
detection limit. Based on the data reviewed from the previous permit cycle it appears that the
proposed change in the winter limits will be well within the values that this treatment system
routinely attains.
Baton Elementary School WWTP Fact Sheet
NPDES Renewal 2020 — March 9, 2020
Page 2

PROPOSED PERMIT CHANGES:
• Updated eDMR requirements
• Added regulatory citations throughout permit
• Updated parameter codes
• Updated NH3-N effluent limits to set winter limits at 6 and 30 mg/L.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: March 25, 2020
Permit Scheduled Effective Date: June 1, 2020
STATE CONTACT:
If you have questions concerning the above or the attached documents, please contact Bradley Bennett
at [phone].
Baton Elementary School WWTP Fact Sheet
NPDES Renewal 2020 — March 9, 2020
Page 3

Public Notice
AFFP North Carolina
Environmental Management
Public Notice Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Aff idavit of Publication Notice of Intent to Issue a NP-
DES Wastewater Permit
NCO030783 Baton Element-
ary School WWTP,
NCO050075 Callettsville Ele-
STATE OF NORTH SS mentary School WWTP and
CAROLINA } NCO041220 Oak Hill Element -
COUNTY OF } ary School
The North Carolina Environ-
mental Management Commis -
Guy Lucas, being duly sworn, says: sion proposes to issue a NP-
DES wastewater discharge
That he is Publisher of the News -Topic, a daily newspaper permit to the person(s) listed
of general circulation, printed and published in Lenoir, below. Written comments re -
County, North Carolina; that the publication, a copy of garding the proposed permit
which is attached hereto, was published in the said will be accepted until 30 days
newspaper an the fallowing dates: after the publish date of thisnotice. The Director of the NC
March 28, 2020 Division of Water Resources
(DWR) may hold a public
hearing should there be a sig-
nificant degree of public in-
terest. Please mail comments
and/or information requests to
DWR at the above address.
Interested persons may visit
the DWR at 512 N. Salisbury
That said newspaper was egularly issued and circulated Street, Raleigh, NC to review
on thos tes. information on file. Additional
SIG i� information on NPDES per-
mits and this notice may be
found on our website'
http://deq.nc.gov/about/divi-
Publisher ' sions/water-resources/water-
resources-permits/wastewa-
Subscribed to and sworn to me this,?�� t AW h ter- branch / n p d e s -
202p• r !a� •Q�,��i, wastewater/public-notices,or
' i •• �' % by calling [phone].
Caldwell County Schools re-
quested renewal of permit
NC0030783/Baton Element-
ary School WWTP. Facility
Michael C. Lambert Sr, Notary, �oLil arr I discharges to Stafford
%''-���a..•`a``� Creek/Catawba River Basin.
My commission expires: May 17, 2�,j�\+•� Fecal coliform and ammonia
�a�'��rt��'` nitrogen are water quality lim-
ited. Caldwell County Schools
requested renewal of permit
NC0050075/Callettsville Ele-
mentary School WWTP. Facil-
30134007 30901030 ity discharges to Johns
River/Catawba River Basin.
Wren Thedford Caldwell County Schools re-
NCDEQ DIVISION OF WATER RESOURCES quested renewal of permit
1617 MAIL SERVICE CENTER NC0041220/Oak Hill Element-
RALEIGH, NC 27699-1617 ary School WWTP. Facility
discharges to Mountain Run
Creek/Catawba River Basin.
Currently, fecal colifarm and
total residual chlorine are wa-
ter quality limited.
Mar. 28, 2020

D. E
CQO gaox~m
.� r �aGwlty
Nicole Hairston
As hev iHe Reginol Of fire -Err Orormental Sp eddis t ff
Division of W ater Resou rce-Pu bli cW ater5upply
North Ca rol i n a De pa rtm e nt of Environmental
828-2 96-45 80 off i ce
328-2 79-75 7:S m e bi I e
Ni c of a .Ha i rston @ ncd en r,8ov
2 09 0 U.S. Hwy 70
Swann anoa, NC 28778
cif eorresrider e to arm from tNS dress is -,u4act to the
VoO j arc+frra Public Records Law arrd may be drs osed to thrd par#res_

Bennett, Bradley
From: Heim, Tim
Sent: Wednesday, March 25, 2020 12:59 PM
To: Bennett, Bradley
Subject: RE: Three Draft Permits - Caldwell County Schools
Iconcur
From: Wiggs, Linda
Sent: Wednesday, March 25, 2020 12:47 PM
To: Bennett, Bradley <[e-mail]>; Heim, Tim <Tim.Heim @ncdenr.gov>
Subject: RE: Three Draft Permits - Caldwell County Schools
Tim will have the final say on these, but I do not have a problem with the flows and the drafts you sent for these
facilities.
4ANE
WP
%.WN�W�
Environmental Senior �a ialrs l ivision I
Forth Carolina Department of Environmer
- 9 -45 0(Office)
Linda . NvIgg denr.gov
From: Bennett, Bradley
Sent: Wednesday, March 25, 2020 11:22 AM
To: Wiggs, Linda <[e-mail]>; Heim, Tim <Tim.Heim @ncdenr.gov>
Subject: Re: Three Draft Permits - Caldwell County Schools
So do you guys think this is a big deal given the small flow and their compliance history? I don't want to
include any changes/requirements that don't make sense and aren't worth the cost of the change.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: brad ley. ben nett ncdenr.gov
Email correspondence to and from this address may be subject to public records laws

From: Wiggs, Linda <[e-mail]>
Sent: Wednesday, March 25, 2020 10:57 AM
To: Heim, Tim <[e-mail]>; Bennett, Bradley <[e-mail]>
Subject: RE: Three Draft Permits - Caldwell County Schools
These facilities don't have flow meters. And I believe if you ask Jerry, he will tell you they pretty much just put the same
number every time and don't do calculation based on well records or a bucket and stop watch.
�7
Environmental 5
Now Carolina 1
828-296-4500 ((
Linda-wiggs@w
&nai corresporxkme Aran address
rmy be dsctwd to,
From: Heim, Tim
Sent: Wednesday, March 25, 2020 10:35 AM
To: Bennett, Bradley <bradley.ben [e-mail]>
Cc: Wiggs, Linda <[e-mail]>
Subject: RE: Three Draft Permits - Caldwell County Schools
Thanks Bradley,
I believe you are correct about the rounding, their flow meters probably do not go low enough to achieve precision
below that. We could discuss having them change meters, but I don't know if there would be a lot of value in that since
they are staying well below permit limits.
From: Bennett, Bradley
Sent: Monday, March 23, 2020 3:49 PM
To: Heim, Tim <[e-mail]>
Cc: Wiggs, Linda <[e-mail]>
Subject: Three Draft Permits - Caldwell County Schools
Tim,

I have attached three draft permit renewals that will be going to notice later this week. For each I have
included the draft permit and cover letter (in one file) and the Fact Sheet in a separate file. I have copied Linda
also since I think you may have mentioned getting her comments on these at some point earlier. If they need
to go to someone else then please forward on or let me know who to get them to.
• NCO030783 - Baton Elementary - NH3-N Monitoring - See the write up in the fact sheet and cover letter
- the monitoring has changed to be consistent with Rule 2 .0404(c) requiring winter limits to be no less
stringent than 2x summer limits. This one is to WS waters so I will also email to PWS for their
comment.
• NCO041220 - Oak Hill Elementary - Corrected map from previous version; added TRC language in
effluent footnote to be consistent with current language.
• NCO050075 - Collettsville Elementary - No major changes.
One question Tim. In all of these permits the DMR data showed that for flow there were only a very few
distinct values that were reported. Most likely this is due to the small nature of the reported values as
MGD. It just seems a little odd for example that for Colletsville there are 248 flow values reported but they
are all either .001 or .002? Maybe there is really no issue with this? Looks like they are just maybe rounding
everything off.
Bradley Bennett
Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: bradley.ben nett()ncdenr.gov
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws

Bennett, Bradley
From: Heim, Tim
Sent: Tuesday, February 25, 2020 7:57 AM
To: Bennett, Bradley
Subject: RE: Permit Renewals for Caldwell County Schools
Attachments: Jan2014 Inspect NC0030783.pdf; 20190228_NC0030783_CEI_Rpt.pdf; WQ0037567
Collettsville Med Center.pdf; 20171120_NC0050075_CEI.PDF
Bradley,
Here are comments from the last inspections. Sorry for the delay in responding, we are extremely short staffed right
now.
From: Bennett, Bradley
Sent: Monday, February 03, 2020 3:44 PM
To: Heim, Tim <[e-mail]>
Subject: Permit Renewals for Caldwell County Schools
Hi Tim,
Hope you are doing well. I just wanted to run a couple more renewals by you to see if you had any comments on
them. All of these have a renewal application in-house and the renewals are in Laserfiche. See list below.
NC0030783 — Baton Elementary School
NC0041220 — Oakhill Elementary School
NC0050075 — Collettsville Elementary School
Let me know if you have any comments. I hope to be able to put the draft permits together within the next week or so.
Thanks
mm-
Bradley Bennett
Compliance and Expedited Permitting
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
email: [e-mail]
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
1

ROY COOPER
Governor
MICHAEL S. PEGAN
Secretary
S. DANIEL SMITH
birector
NORTH CAROLINA
Environmental Quality
March 23, 2020
MEMORANDUM
To: Kimberly Barnett
NC DEQ / DWR / Public Water Supply
Asheville Regional Office
From: Bradley Bennett $$
Compliance and Expedited Permitting Unit
Subject: Review of Draft NPDES Permit NCO030783
Baton Elementary School WWTP
Caldwell County
Please indicate below your agency's position or viewpoint on the draft permit and
return this form by April 24, 2020. If you have any questions on the draft permit,
please contact me via e-mail [[e-mail]].
RESPONSE: (Check one)
F-1
Concur with the issuance of this permit provided the facility is operated and maintained
properly, the stated effluent limits are met prior to discharge, and the discharge does not
contravene the designated water quality standards.
F-1
Concurs with issuance of the above permit, provided the following conditions are met:
F-1 Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed Date:
D Q
�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
vnraTycavoiiwa
oepammtorendmn—talouaifty /'� 919.707.9000

NH3/TRC WLA Calculations
Facility: Baton Elementary WWTP
PermitNo. NC0030783
Prepared By: Bradley Bennett
Enter Design Flow (MGD): 0.015
Enter s7Q10 (cfs): 0.06
Enter w7Q10 cfs : 0.14
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
0.06
s7Q10 (CFS)
0.06
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (CFS)
0.02325
DESIGN FLOW (CFS)
0.02325
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
27.93
IWC (%)
27.93
Allowable Conc. (ug/1)
61
Allowable Conc. (mg/1)
3.0
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0.14
Monthly Average Limit:
200/100ml
DESIGN FLOW (MGD)
0.015
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.02325
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
3.58
Upstream Bkgd (mg/1)
0.22
IWC (%)
14.24
Allowable Conc. (mg/1)
11.3
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

REASONABLE POTENTIAL ANALYSIS
Par22
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
NO DATA
NO DATA
0
N/A
N/A ug/L
N/A ug/L
Ammonia Nitorgen
Use"PASTE SPECIAL Par23
Values" then "COPY"
. Maximum data
points = 58
Date Data
BDL=1/2DL
Results
1
11/3/15 <
0.20
0.1
Std Dev.
1.7784
1
2
11/17/15 <
0.20
0.1
Mean
1.2870
2
3
12/1/15 <
0.20
0.1
C.V.
1.3818
3
4
12/15/15
1.24
1.24
n
44
4
5
1/5/16 <
0.20
0.1
5
6
1/19/16 <
0.20
0.1
Mult Factor =
1.15
6
7
2/2/16
1.19
1.19
Max. Value
6.500000 mg/L
7
8
2/17/16
4.75
4.75
Max. Pred Cw
7.475000 mg/L
8
9
3/9/16
4.85
4.85
9
10
3/23/16 <
0.20
0.1
10
11
11/1/16 <
0.20
0.1
11
12
11/15/16 <
0.20
0.1
12
13
12/1/16 <
0.20
0.1
13
14
12/13/16 <
0.20
0.1
14
15
1/3/17 <
0.20
0.1
15
16
1/17/17
0.82
0.82
16
17
2/8/17
0.61
0.61
17
18
2/21/17 <
0.20
0.1
18
19
3/7/17 <
0.20
0.1
19
20
3/22/17
0.58
0.58
20
21
11/7/17 <
0.20
0.1
21
22
11/20/17 <
0.20
0.1
22
23
12/4/17 <
0.20
0.1
23
24
12/18/17
3.10
3.1
24
25
1/2/18 <
0.20
0.1
25
26
1/16/18 <
0.20
0.1
26
27
2/6/18
4.65
4.65
27
28
2/19/18
3.68
3.68
28
29
3/5/18
1.84
1.84
29
30
3/19/18
1.14
1.14
30
31
11/6/18
0.75
0.75
31
32
11 /20/18
1.05
1.05
32
33
12/4/18
1.44
1.44
33
34
12/18/18
1.28
1.28
34
35
1/8/19 <
0.20
0.1
35
36
1/21/19
1.14
1.14
36
37
2/4/19
4.95
4.95
37
38
2/19/19
6.50
6.5
38
39
3/5/19
3.38
3.38
39
40
3/19/19
4.85
4.85
40
41
11/5/19
0.64
0.64
41
42
11/19/19 <
0.20
0.1
42
43
12/3/19 <
0.20
0.1
43
44
12/16/19 <
0.20
0.1
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
0
Date Data BDL=1/2DL
9595 Final FW RPA for NH3N_NC0030783, data
- 12 - 5/18/2020

Baton Elementary School - Avery County I Outfall 001
NCO030783 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.015 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) = 0.0150
I Q10S (cfs) =
0.05
7Q10S (cfs) =
0.06
7Q10W (cfs) =
0.14
30Q2 (cfs) =
0.19
Avg. Stream Flow, QA (cfs) =
0.53
Receiving Stream:
UT to Stafford Creek
WWTP/WTP Class: 1
IWC% @ 1Q10S =
31.74061433
IWC% @ 7Q10S =
27.92792793
IWC% @ 7Q10W =
14.24196018
IWC% @ 30Q2 =
10.90269637
IW%C @ QA =
4.202440127
Stream Class:
WS
COMBINED HARDNESS (me/L)
NO DATA
NO DATA
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
NO HARDNESS DATA
PARAMETER
NC STANDARDS OR EPA CRITERIA
rn
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
a
z
Applied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute: 53.55914
Ammonia Nitorgen
NC
1.9 FW(7Q10s) 17
mg/L
44 22
7.47500
Chronic: ----6.80323-----------------------------
No value > Allowable Cw
Acutc:
0 0
N/A
Acute:
0 0
N/A
Acute:
0 0
N/A
Chronic:--------------------------------------
9595 Final FW RPA for NH3N_NC0030783, rpa
Page 1 of 1 5/18/2020

DocuSign Envelope ID 1E7829C4-DE22-4578-851A-95F2C4768D46
ROY COOPER
�c.vrrrrcr � �e
MICHAEL S. REGAN
.ti•crlry ��
LINDA CULPEPPER Noa1 µ CAROLINA
❑ofewe ErpWragmental Quality
February 28, 2019
Jeff Church
Caldwell County Schools
1914 Hickory Blvd SW
Lenoir, NC 28645
SUBJECT, Compliance Inspection Report
Baton Elementary School
NPDES WW Permit No. NCO030783
Caldwell County
Dear Permittee:
The North Carolina Division of Water Resources conducted an inspection of the Baton Elementary
School on 2/26/2019. This inspection was conducted to verify that the facility is operating in compliance
with the conditions and limitations specified in NPDES WW Permit No. NC0030783. The findings and
comments noted during this inspection are provided in the enclosed copy of the inspection report
entitled "Compliance Inspection report"_
There were no significant issues or findings noted during the inspection and therefore, a response to this
inspection report is not required.
If you should have any questions, please do not hesitate to contact me with the Water Quality Regional
Operations Section in the Asheville Regionai Office at 828-296-4500 or via email at [e-mail].
Sincerely,
i3vcu5igned by:
I IVKAl F 60t
38281105A3C A419
Tim Heim, P.F., Environmental Engineer
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ
ATTACHMENTS
Ec: WQS-ARO Server
LF
G:\WRIWQICaidwell\Wastewater\Minors\8aton Elementary 3078311nspectionsti2019 CEI\20190228_NC0030783_CEI Ltr.Docx
� 7✓ 40-e •„eRago nD5.Off, ns2
09DU £ -,1) a Y�es..� p ❑�usen,crlrWsj%C& r.ems
}2?'8
&Z8,�36�7C

DocuSign Envelope ID: 1E7B29C4-DE22-4579-851A-95F2C476BD46
United Slates Environmental Pfolection Agency
Form Approved_
EPA Washington, D.C.24466
OMB No.2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e. PCS)
Transaction Code NPDES ydrnolday Inspection Type Inspector Fac Type
1 IN I 2 I5 I 3 1 NCOU30783 Ill 12 1 191fl2126 I17
18 I d 19 ICI 20 f
211 I LI I.1 1 I I I 11 1 1 1 1 I 1 I_I 1 1 1 11I_1 1 1
1 1 1 1 1 1 11 1 1 1 1 1 f66
Inspection Work Days Facility Self -Monitoring Evaluatlon Rating 131 QA
---------------------Reserved- -
67
j
70 !J l__J 71 72 I!_
73 W 74 751 III 1 I 1 i80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW; also include
Entry Thine/Date
Permit Effective Date
POTW name and NPDES aermit Number)
09:c0AM 19/02/26
15104/01
Baton Elementary School
1400 Baton School Rd
Exit TimelDate
Permit Expiration Date
Granite Falls NC 28630
11:OOAM 19/02126
20102129
Name(s) of Onslte Re presentative (s)Fliitles(S)Whone and Fax Number(sl
Other Facility Data
1N
Jerry Lynn YouncelOR0825-757-2195/
Name. Address of Responsible OfficiallTitlelPhone and Fax Number
Contacted
Jeff Churchr1914 Hickory Blvd SW Lenoir NC 286451/928-728-8407/8287280012
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Operations & Maintenance N Facility Site Review
Section ❑: Summary of FindinglCornmenis (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspertor(s) AgencylOffcelPhone and Fax Numbers
Date
Timothy H Heim ARO WQ11828-296-46651
2/28/2019
F-�rbeeu5'jgned by
I41HQrL A'�Wi
Signature of Management Q A Reviewer AgencylOtficelPhone and Fax Numbers
Date
2/28/2019
EPA Form 3560-3 (Rev 0-94) Previous editions ate obsolete,
Page#

DocuSign Envelope IC: 1E7B29C4-QE22-4579-851A-95F2C476BD46
NPQES yrimolday Inspecfion Type
NC0030783 it 1 121 19102/26 117 18 ici
Section D; Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim of the Asheville Regional Office performed a Compliance Evaluation Inspection of the facility,
on February 26, 2019. Jerry Younce (ORC), and Steve Soots (Caldwell County Schools) were also
present.
The system appeared well maintained and operated at the time of the inspection.
Page#

docuSign Envelope ID: 1E7B29C4-4E22-4578-851A-95F2C476BD46
Permit: NCO030783 Owner - Facility: Baton Elementary School
Inspection pate: G21261201D Inspection Type: Compliance Evaluation
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH. DO, Sludge Judge, and other that are applicable?
Comment: The facility appeared well maintained and operated at the time of the insmof n.
Septic Tank
(If pumps are used) is an audible and visual alarm operational?
Is septic tank pumped on a schedule?
Are pumps or syphons operating properly?
Are high and law water alarms operating property?
Comment:
Sand Filters (Low rate)
(If pumps are used) Is an audible and visible alarm Present and operational?
Is the distribution box level and watertight?
Is sand fitter free of ponding?
Is the sand filter effluent re -circulated at a valid ratio?
# Is the sand filter surface free of algae or excessive vegetation?
# Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1)
Yes
No NA NE
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VC-Mr--RUTEN411111
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Yes
No NA NE
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Comment: Subsurface filter under grass field. No evidence of ponding or unusual vegetation patterns.
Disinfection - UV
Yes
No NA NE
Are extra UV bulbs available on site?
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Are UV bulbs clean?
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Is UV intensity adequate?
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Is transmittance at or above designed level?
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Is there a backup system on site?
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Is effluent clear and free of soiids?
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Comment:
Page# 3

NC0030783 Baton Elem. School WWTP / Caldwell Co Schools - Document Review ARO
Comments / Notes from Application and other Info:
• No comments or requested changes in the renewal application.
• Facility has eDMR contacts with ESA.
Review of Monitoring Data:
Data values are a little spotty due to the variability in the treatment plant. Since the facility serves a
school there are times during the year when use of the system is much different than at others times
and there may be no flow reported. This leads to some gaps in the data when the facility is closed, and
monitoring is waived.
• BOD — Values averaged 1.87 mg/L with no noted exceedances.
• TSS —Values averaged 6.64 mg/L with no noted exceedances.
• Flow average for permit term — 0.0039 MGD. No values exceeded the 0.015 MGD permit design
flow rate. Average flow is only at 26% of permitted flow. Only five separate values reported in
the 192 total values (0.001, 0.003, 0.004, 0.005, 0.006). May be due to small nature of the
values and eDMR significant digits?
• Temperature — only monitor at the effluent. Values seem in line with seasonal variation.
• Fecal Values — highest reported value was 34.
• pH — no issue from data (6.1 to 8.9).
• NH3-N — average of 1.06 mg/L overall. Summer average of 0.85 with no value higher than 4.85.
Almost all monthly averages below limit and no daily values close to 15 max. Winter average of
1.29 no value higher than 6.5 so monthly limit of 11 and daily max of 35 never an issue. With
rule 2b .0400 the winter limits will have to be reduced to 6 and 30. Based on past data these
numbers do not appear to be a problem. Non -municipal so daily max rather than weekly
average limit.
• No WET requirement — permittee accepted NH3-N limits instead (1991 WLA).
Compliance / Enforcement:
• No NOV's or NOD's
• No enforcement actions since 2011.
Other:
• Facility lat/long updated to reflect school location rather than outfall location.
• Facility treatment system updated to septic tank/sand filter