NCG080682_Analytical Testing Report_20181218

December 14, 2018
Mr. James Castle
Fleet Manager
City of Asheville
P.O. Box 7148
Asheville, North Carolina 28802
Subject: Report of November 2018 Stormwater Discharge Sampling
City of Asheville Fleet Maintenance Building
173 South Charlotte Street
Asheville, North Carolina
Wood Project 6252-18.0338.06
Dear Mr. Castle:
Wood Environment 8t Infrastructure Solutions, Inc. (Wood) is pleased to submit this Report of November
2018 Stormwater Discharge Sampling for the City of Asheville Fleet Maintenance Building located on
South Charlotte Street in Asheville, North Carolina. This sampling was performed to comply with
requirements contained in the General Permit for Stormwater Discharge (Permit NCGO80000 with an
original effective date of November 1, 2012, reissued on November 16, 2017, and expiring October 31,
2018) issued by the North Carolina Department of Environment and Natural Resources, now the North
Carolina Department of Environmental Quality (NCDEQ). City of Asheville's certificate of coverage under
this permit is NCG080682.
Background ]nformation
Six Stormwater outfalls (OF#1 through OF#6) are located at the site as shown on the attached Figure 1.
five of the outfalls (OF#2 through OF#6) are located within the industrial area of the site. Outfall OF#1
receives surface runoff from the employee/visitor parking area, which is a non -industrial area. Due to the
elevation of the rim of Outfall OF#3 observed historic measurable storm events have not produced
Stormwater discharge at this location. Two outfalls (OF#2 and OF#6) discharge directly into Town Branch
also known as Nasty Branch), which is enclosed beneath the site and daylights approximately 1,500 feet
to the southwest of the site. The samples collected during the late 2018 storm event were labeled as SW
with their corresponding outfall number (e.g. SW-2 sample collected from OF#2).
A water quality classification is not listed for Town Branch on the NCDEQ Surface Water Classification
website/map. Town Branch's confluence with the French Broad River is approximately 7,000 feet to the
southwest of the site. According to NCDEQ's water quality classification of the French Broad River at the
confluence with Town Branch (a Classification B), the French Broad River is not currently classified as the
following sensitive receiving waters: Outstanding Resource Waters, High Quality Waters, Primary Nursery
Areas and Trout Waters. Therefore, the more protective benchmark value listed in the General Permit for
Correspondence:
Wood Environment &Infrastructure Solutions, Inc,
1308 Palton Avenue
Asheville, North Carolina28806
Tel [phone]

City of Asheville Fleet Maintenance
Building
—November 2018 Stormwater Discharge
Sampling December 14, 2018
Wood Project 6252-18-0338.06
total suspended
solids (50mg/L) does not
apply
to stormwater discharges at the site — the applicable
benchmark value
for total suspended solids
is 100
mg/L
A rain gauge is present at the site approximately six feet above ground in an open area at a distance of at
least twice the height of surrounding structures.
Late 2018 Stormwater Sampling Activities
Because of frequent storm events in July and October, opportunities for a measureable storm event with a
preceeding 72-hour dry period were limited. Additionally, several of the measureable storm events were
outside of the facility's normal operating hours.
Based on the lack of measureable storm events in the later portion of the late 2018 permit sampling
period (Period 2), Wood recommended, and performed, sampling at the first measureable storm event in
November. This storm event, with sampling activities described below, is considered to be representative
of the late 2018 permit sampling period, however, a NCDEQ Semi -Annual Stormwater Discharge
Monitoring Report with an indicated 'no discharge' for the late 2018 period is attached.
November 2018 Stormwater Sampling Activities
Wood personnel were onsite to perform Stormwater sampling during a measureable storm event on
November 1, 2018. The storm event occurred between approximately 5:00 PM and 5:45 PM on November
11 2018, Wood personnel performed stormwater sampling of the discharges starting at 5:17 PM. Total
rainfall for this event within a 24-hour period was 0.31 inches as measured at the on -site rain gauge.
Rainfall sufficient to produce a measureable discharge was not recorded during the 72 hours prior to this
measurable storm event.
Within about 30 minutes of constant measurable discharge, the pH of the stormwater was measured with
a calibrated pH meter, and stormwater samples were collected from outfalls OF#2, OF#4, OF#S and OF46.
The samples were collected after Stormwater passed through the installed catch/filter baskets. The
samples were marked with an F to indicate the sample was collected post catch basket and is considered
filtered' (e.g. SW-2F). Additionally, Wood collected a stormwater sample from OF#2 before passing
through the catch basket. The sample was labeled as SW-2. The samples were packed in an ice -chilled
cooler and delivered with chain -of -custody via overnight courier to PRISM Laboratories in Charlotte,
North Carolina (a North Carolina -accredited laboratory) for analysis. The outfall samples were submitted
for analysis of total suspended solids (TSS) according to Standard Method 2540D and non -polar oil and
grease according to EPA Method 1664E (SGT-HEM).
Field analysis of the Stormwater samples indicated pH readings were below the NCDEQ benchmark range.
The pH readings ranged from 5.51 at OF#4 and OF#6 to 5.74 at OF#2. Laboratory analytical results
indicated TSS and non -polar oil and grease were below their respective NCDEQ benchmark values. The
analytical results for the outfall samples are reported on the attached NCDEQ Semi -Annual Stormwater
Discharge Monitoring Report. The laboratory analytical report and Chain of Custody Records are attached
to this report.
Qualitative monitoring forms for the outfalls were also completed during sampling and will be provided
under separate cover for inclusion in the site Stormwater Pollution Prevention Plan documentation.

City of Asheville Fleet Maintenance
Building — November 2018
Stormwater Discharge
Sampling December 14, 2018
Wood Project 6252-18-0338.06
Discussion and Recommendations
The pH values for the stormwater samples collected during the late 2018 sampling event are below the
NCDEQ benchmark range; however, the values are generally within range of the prior sampling events.
Based on the current detected concentrations of TSS and oil and grease, the values are in compliance with
the General Permit conditions. Oil and grease was detected at a concentration below the benchmark
range in the sample SW-2 collected pre-catch/filter basket and was not detected above the laboratory
method detection limit in the sample collected post filter at the same outfall location. The total suspended
solids were also reduced from 71 mg/L to 7.0 mg/L from the samples collected pre and post catch basket
ndicating that the catch baskets do appear to provide a reduction in TSS and oil and grease
concentrations. Although the concentrations detected in the sample collected at the pre -catch basket
(SW-) were slightly elevated compared to the sample collected post catch basket (SW-2F) the
concentrations detected at both samples are in compliance with the benchmark values contained in the
General Permit.
Wood recommends
that the following
list of
requirements for a Tier One response be
performed at the
facility in relation to
the measurements
of pH
below the benchmark range:
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results.
2. Identify and evaluate possible causes of the benchmark value exceedence.
3. Identify potential, and select the specific: source controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, or to bring
concentrations to within the benchmark range.
4. Implement the selected actions within two months of the inspection.
5. Record each instance of a Tier One response in the Stormwater Pollution Prevention Plan.
Include the date and value of the benchmark exceedence, the inspection date, the personnel
conducting the inspection, the selected actions, and the date the selected actions were
implemented.
Based on the preliminary results of an NCDEQ stormwater inspection in early August 2018, and review of
available historical stormwater sampling documentation, sampling of outfalls at locations other than OF#2
and OF#6 had not been performed prior to the late 2018 Sampling Event. Documentation related to
Representative Outfall Status designation of these historically -sampled outfalls was not available.
Wood recommends submitting this documentation of stormwater sampling, along with the attached
stormwater Discharge Outfall Monitoring Reports, to NCDEQ for their files.
Wood recommends ongoing cleaning of the catch basket filtration material. We note that depending on
availability of the style/model of the current sediment basket filtration material/insert, it might be more
efficient and/or economical to replace the entire unit as needed.
Wood recommends continuing sampling of the following outfalls at a measureable storm event in early
2019: OF#2, OF#4, OF#S, and OF#6. Due to the elevation of the drop inlet rim of Outfall OF#3 historic
measurable storm events have not produced discharge at this location. The flow in the area of OF#3
Outfall OF#1 receives surface runoff from the employee/visitor parking area, which is a non -industrial
area. Based on the results of this late 2018 sampling event, and after evaluation of sampling results in
3

City of Asheville fleet Maintenance Building —November 2018 Stormwater Discharge Sampling December 14, 2018
Wood Project 6252-18-0338.06
early 2019, consideration can be given to proposing Representative Outfall Status of one or more outfalls
at the site.
We appreciate the
opportunity to provide
water
resource services on this project.
If you should have any
questions, or need
additional information,
please
do not hesitate to contact us at
[phone],
Sincerely,
Wood Environment & Infras r ciure Solutions, Inc.
Gregory L. Hutchins
Technical Professional II
GLH/MEW:mew
�IC., �, w___--
c�cet_
Matthew E. Wallace, P.E.
Pri
ncipal Engineer
Attachments: Figure 1: Site Drainage Plan
Laboratory Analytical Report and Chain -of -Custody
NCDEQ Semi -Annual Stormwater Discharge Monitoring Reports

APRISM
L SORATORIEe, INC.
Full -Service Analytical &
Environmental Solutions
Wood Environ. &Infrastructure Inc (Asheville)
Rodney Clark
1308 Patton Avenue (Suite C)
Asheville, NC 28806
NC Certification No. 402
NC Drinking Water Cert No. 37735
SC Certification No. 99012
Project: City of Asheville -Fleet Maintenance
Project No.: 6252180338
Lab Submittal Date: 11/03/2018
Prism Work Order: 8110051
Case Narrative
11/13/2018
This data
package
contains the
analytical results
for the project identified above and includes a Case Narrative,
Sample
Results and
Chain
of Custody.
Unless otherwise
noted, all samples were received in acceptable condition and
processed
according
to the referenced
methods.
Data qualifiers are
flagged
individually on each
sample.
A key reference for the
data qualifiers appears at the end of this case
narrative.
Please call if you have any questions relating to this analytical report.
Respectfully,
PRISM LABORATORIES, INC.
Robbi A. Jones
President/Project
Manager
Data Qualifiers Key Reference:
Reviewed By Robbi A. Jones
PresidenUProject Manager
OG HEM O&G is less than the reporting limit, therefore TPH (SGT-HEM) is less than the reporting limit. Sample not
extracted for TPH (SGT-HEM).
RV Reduced volume filtered due to slow filtering.
BRL Below Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and
reporting limit indicated with a J.
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Bax 240543 - Charlotte, NC 2a224.0543
Phone:[phone]-ToIlFreeNumber:l-60fi/529-63fi4-Fax:[phone] Page 1 of 10

P R I S M Fr'I aere,ae Analytical
Sample Receipt Summary
Environmental Solutions 11/13/2018
Uoe�ro EA„ Prism Work Order: 8110051
Client Sample ID
Lab Sample ID
Matrix
Daterrime
Sampled
Daterrime Received
SW-2
8110051-01
Water
11/01/18
17:35
11/03/18
10:53
SW-2F
8110051-02
Water
11/01/18
17:25
11/03/18
10:53
SW-4F
8110051-03
Water
11/01/18
17:30
11/03/18
10:53
SW-5F
8110051-04
Water
11/01/18
17:23
11/03/18
10:53
SW-6F
8110051-05
Water
11/01/18
17:17
11/03/18
10:53
Samples were received in good condition at 3.6 degrees C unless otherwise noted.
This report should not be reproduced, except in its entirety, without the written consent of Prism Lahoratories, Inc.
449 5pringbrook Road - P.O. Box 240543 -Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-8001529,6364 - Fax: [phone] Page 2 of 10

PRISeM ( Full Service Analytical Summary of Detections
Environmental solutions 11/13/2018
a��ro E� na Prism Work Order: 8110051
Prism ID Client ID Parameter General Method Method Result Units
8110051-01 SW-2 Oil & Grease (SGT-HEM) General Chemistry Parameters `1664B 9.7 mg/L
8110051-01 SW-2 Total Suspended Solids General Chemistry Parameters `SM2540 D 71 RV mg/L
8110051-02 SW-2F Total Suspended Solids General Chemistry Parameters 'SM2540 D 7.0 mg/L
8110051-03 SW4F Total Suspended Solids General Chemistry Parameters 'SM2540 D 36 mg/L
8110051-04 SW-5F Total Suspended Solids General Chemistry Parameters •SM2540 D 10 mg/L
This report should not he reproduced, except in its entirety, without the written consent of Prism Lahoratories, Inc.
449 Springbrook Road • P.O. Box 240543 -Charlotte, NC 26224-0543
Phane:704/529-6364-Toll Free Number:l-800/529.6364-Fax: [phone] Page 3 of 10

AAiP R I IS n Full -Service al Solutions
&
Laboratory Report
oa�i4 1'ERvINC Environmental aoiu6ons 11 /13/2018
Wood Environ. & Infrastructure Inc (Asheville Project: City of Asheville - Fleet Client Sample ID: SW-2
Attn: Rodney Clark Maintenance Prism Sample ID: 8110051-01
1308 Patton Avenue (Suite C) Project No.: 6252180338 Prism Work Order: 8110051
Asheville, NC 28806 Sample Matrix: Water Time Collected: 11/01/18 17:35
Time Submitted: 11 /03/18 10:53
Parameter Result Units Report MILL Dilution Method Analysis Analyst Batch
Limit Factor Date rime ID
General Chemistry Parameters
Oil & Grease (SGT-HEM) 9.7 mglL 5.0 1.1 1 '1664B 11/8118 9:07 SLS PSK0155
Total Suspended Solids 71 RV mg/L 12 0,40 1 'SM2540 D 1118/18 15:03 CBP PBK0138
This report should not he reproduced, except in its entirety, without the written consent of Pdsm laboratories, Inc.
449 Springbraok Road -P.O. Box 240543 -Charlotte, NC 28224-0543
Phone: [phone] -Toll Free Numher. 1-800/529-6364 - Fax: [phone] Page 4 of 10

RR I SeM Full -Service Analytical
r uw,ruia ,¢g,xs, Environmental Solutions
Laboratory Report
11/13/2018
Wood Emoron. & Infrastructure Inc
(Asheville
Project:
City of Asheville - Fleet
Client
Sample ID: SW-2F
Attn: Rodney Clark
Maintenance
Prism
Sample ID: 8110051-02
1308 Patton Avenue (Suite C)
Project
No.: 6252180338
Prism
Work Order: 8110051
Asheville, NC 28806
Sample
Matrix: Water
Time Collected: 11/01/18 17:25
Time Submitted: 11 /03/18 10:53
Parameter
Result
Units Report MDL
Dilution
Method Analysis Analyst
Batch
Limit
Factor
Date/Time
ID
General Chemistry Parameters
Oil 8 Grease (SGT-HEM)
BRL
OG
mg/L 5.0 1.1
1
'1664B 11/12/18 9:17 SLS
P81<0210
Total Suspended Solids
7.0
mg/L 6.2 0.40
1
'SM2540 D 1118/18 15:03 CEP
PBK0138
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Bax 240543 -Charlotte, NC 28224-0543
Phone: [phone] -Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 5 Of 10

' S n n I Full Service Analytical Solutionsst
I V' Full-SEnvirorvice Al alytic
rd U J/urmccmcIca INC.
Wood Environ. & Infrastructure Inc (Asheville Project: City of Asheville - Fleet
Attn: Rodney Clark Maintenance
1308 Patton Avenue (Suite C) Project No.: 6252180338
Asheville, NC 28806 Sample Matrix: Water
Parameter Result
General Chemistry Parameters
Oil & Grease (SGT-HEM)
Total Suspended Solids
Laboratory Report
11/13/2018
Client Sample ID: SW417
Prism Sample ID: 8110051-03
Prism Work Order: 8110051
Time Collected: 11/01/18 17:30
Time Submitted: 11/03/18 10:53
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
DateTme
ID
BRLOG
36
mg/L
mg/L
5.0
6.2
1.1
0.40
1
1
'1664B
'SM2540 D
MUMS 9:17
1118118 15:03
SLS
CBP
P81<0210
P8K0138
This report should not be reproduced, except in its entirely, without the written consent of Prism Laboratories, Inc.
449 Springhrook Road • P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone]-Toll Free Number: 1-8001529-6364- Fax: [phone] Page 6 of 10

PEnvironmental
Service AnalyticalR ISM I Env ronmsntal Solutions�Zm^
Wood Environ. & Infrastructure Inc (Asheville Project: City of Asheville - Fleet
Attn: Rodney Clark Maintenance
1308 Patton Avenue (Suite C) Project No.: 6252180338
Asheville, NC 28806 Sample Matrix: Water
Laboratory Report
11/13/2018
Client Sample ID: SW-5F
Prism Sample ID: 8110051-04
Prism Work Order: 8110051
Time Collected: 11/01/18 17:23
Time Submitted: 11 /03/18 10:53
Pammeter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
DaterTime
ID
General Chemistry Parameters
Oil & Grease (SGT-HEM)
Total Suspended Solids
BRL OG mg/L 5.0
0 mg/L 2.5
1.1
1
'16648
11/12/18 9:17
SLS
P8K0210
0.40
1
`SM2540 D
1118118 15:03
CBP
P81(0138
This report should not he reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springhrook Road - P.O. eax 240543 -Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-8001529-6364 - Fax: [phone]
Page 7 of 10

vice
P)R Full-ServiceI S M I Environmental Solutions 7uroMTQw s ixc,
Wood Environ. & Infrastructure Inc (Asheville Project: City of Asheville - Fleet
Attn: Rodney Clark Maintenance
1308 Patton Avenue (Suite C) Project No.: 6252180338
Asheville, NC 28806 Sample Matrix: Water
Laboratory Report
1111312018
Client Sample ID: SW-61
Prism Sample ID: 8110051-05
Prism Work Order: 8110051
Time Collected: 11/01/18 17:17
Time Submitted: 11/03/18 10:53
Parameter Result
Units
Report
MDL Dilution
Method Analysis Analyst
Batch
Limit
Factor
DateTme
ID
General Chemistry Parameters
Oil & Grease (SGT-HEM) BRL OG
mg/L
5.0
1.1 1
'1664B 11/12/18 9:17 SLS
P81<0210
Total Suspended Solids BRL
mglL
3.3
0.40 1
'SM2540 D 11/8118 15:03 CBP
P81<0138
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road • P.O. Box 240543 -Charlotte, NC 28224-0543
Phone:[phone]fi4-ToIlFreeNumber.l-800/529-63fi4-Fax:[phone] Page 8 of 10

Level If QC Report
I S�pl� A Fuli-eervice Analytical & 11/13/18
UviEu, me Environmental Solutions
eo &
Woonviron. & Infrastructure Inc (Asheville Project: City of Asheville -Fleet Prism Work Order: 8110051
Attn: Rodney Clark Maintenance Time Submitted: 11/3/2018 10:53:OOAM
1308 Patton Avenue (Suite C) Project No: 6252180338
Asheville, NC 28806
General Chemistry Parameters - Quality Control
Analyte
Result
Reponing
Limit
Units
Spike
Level
Source
Result
%REC
%REC RPD
Limits RPD Limit Notes
Batch PSK0138 - NO PREP
Blank (P8K0138-BLK1)
Prepared
& Analyzed:
11/08/18
Total Suspended Solids
LCS (P8K0138-BS1)
BRL
5.0
mg/L
Prepared
&Analyzed:
11/08/18
Total Suspended Solids
Batch P81<0155 - NO PREP
470
5.0
mg/L
477.0
99
90-110
Blank (P8K0155-BLK1)
Prepared
& Analyzed:
11/08/18
Oil & Grease (SGT-HEM)
LCS (PSK0155-BSI)
BRL
5.0
mg/L
Prepared
& Analyzed:
11/08/18
Oil & Grease (SGT-HEM)
Batch P81<0210 - NO PREP
14.4
5.0
mg/L
20.00
72
64-132
Blank (P8K0210,BLK1)
Prepared
& Analyzed:
11/12/18
Oil & Grease (SGT-HEM)
BRL
5.0
mg/L
This report should not he reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road • P.O. Box 240543 -Charlotte, NC 26224-0543
Phone: [phone]-Toll Free Number:l-800/529-fi364-Fax: [phone] Page 9 of 10

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For guidance on filling out this farm, please visit https;//deq.ne.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
PezrnitNo.:
N/C/G'/G/i5/(�/J/O/G/
or Certificate
of CoverageNo.:
NICIG/�JI�I,Cll,6/�la?l
Facility Name: GN-•x
of ��x vi �i(✓
�az�
�' f� .,_� e., i3�ti oQ_ .r _
County; ��,�,
h�spector: ICt�o
Date of Inspection:
Titne of Inspection:
Total Event Precipitation (inches):
8zg-2Sa-5�a� �
All permits require qualitative monitoring to be performed during a "measurable storm event "
A "measurable storm event" is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 721tours prior. The 72-hour storm
interval does not apply if the pennittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and rho permitee obtains approval from the focal DEMLR
Regional Office.
By this signature, La�rtlfy�hat this report is acc�yrad complete to the best ofmy knowledge:
of
1. Ontfall Description:
Outfall No, a W - i Shucture (pipe, ditch, etc,): 1�!'� � � n %�..
Receiving Stream; '�y ,+
Describe the industrial activities that occur within the outfall drainage area:
Page 1 oF2
SW[I-242, Last modified 06/01/2018

2.
Color:
Describe the color of the
discharge using
basic colors
(red, brown,
blue, etc.)
and
tint
(light,
medium,
dark) as descriptors:
3. Odor: Dew be any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.); inrry<2
4. Clarity: Choose the number which best descr bes the claity of the discharge, where 1 is clear
aad 5 is very cloudy: Ol 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids;
6.
Suspended Solids: Choose
the number which best describes the amount
of suspended solids in
the
stormwater discharge, where 1 is
no solids and 5 is extremely muddy:
Is there any foam in the stormwater discharge? Q Yes O? e o.
Is there an oil sheen in the stormwater discharge? oYes 940,
Is there evidence of erosiau ar deposition at the outfall? O Yes S7i �No.
10. Other Obvious Indicators of stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition maybe
indicative of pollutant exposure. These cmrditlons warrant further investigation.
Page 2 of 2
S WU-242, Last modified 0610 tYL0l8

Tor guidance onfilling out this forrn, please visit hops://deq.nagov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
PermitNo.: G /G
lis lfJ/lJIO.
or Certificate of Coverago No.:
N/ ..,U//tJ/6/ d
Facility Name;
oF' flSG,.avi t)r
rll 4 /Am,%^4y u n ^C
P B' r Id
County: is'o^cu„
6, ..
Phone No. BZFs^
a� G oG
_,
Date of Inspection: if / 1 /14E
Tune of Inspection: ) �7 41 1
Total Event Precipitation (inches):
All permits require qualitative monitoring to be performed during a "measurable storm event "
A'0measurable storm event" is a storm event that results in an actual discharge from the pernutted site
outfall. The prey ous measurable storm event must have been at least 72 hours prior. The 12-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Office.
By this signahlre, I c that
(Signature of Permittee 6fIIe:
L Outfall Description:
OutfallNo. J-3
Receiving Stream:
a u_
report is ac�wa�� and complete to the best of my knowledge;
Structure
Describe the industrial activities that o//ccur within the outfall drainage area:
Page 1 of 2
S WU-242, Lasf madiHed O6/0112018

2.
Color:
Describe the color of the
discharge using basic colors (red, brown, blue, etc.) and tint
(light,
medium,
dark) as descriptors:
Li /^
3. or: Describe any distinct odors that the discharge may have (i,e., smells strongly of oil, weak
chlorine odor, etc.): N /OA
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
N/A 1 2 3 4 5
5, gloating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
6. Suspended Solids: Choose the number which best describes the aAnount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
/-.�j 1 2 3 4 5 tA''
7. Is there any foam in the stormwater discharge? 4 Yes Q No. _ J JZA
8. Is there an oil sheen in the stormwater discharge? EaYes Q No• N�
9, Is there evidence of erosion or deposition at the outfa117 Q Xes 67 No. N�7si
10. Other Obvious Indicators/of Stormwater Pollution:
List and describe ✓va d� S'4crm4-
0..
Note: how clarity, high solids, and/or the presence of foam, oil sheen, or erosion/depositimr may be
indicative o£ pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
Swill-242, Last mocliGed o6/e (2018

For gtridnnce on ftllfng oe+t this form, please visit https://deq.ne.gov/about/divisions/energy-mineral-land-resources!
npdes-stormwater-gps
Permit No.: NlCl6 /,G
LS l,(�l�l D/<7/
or Certificate
of Coverage No.: N/C(G/�J/C5 1 U/6 /3 /mil
Facility Name: Cifc
oP &G•.svij�
County .1auncci...,f�P /
Inspector: ad �. L
Date of Inspection: pj h
Time of Inspection: j . `
Total Event Precipitation (inches): �,
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measuraUle storm event" is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By Chis signature, I�pr�fy that this report is accu�:E'e"anfi complete to the best of my Imowledge:
of
I. OutfaU Descri lion:
Outfall No. '"t.0 ^ Structure (pipe, ditch, etc.), �� c�,c. r'^ �e
Receiving Stream: -� f
"-�f tam c^
Describe the industrial activities that occur within the outfall drainage area:
Page 1 of 2
S WU-242, Lnst moAiried 06/012018

2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc,) and jint
{light, medium, dark) as descriptors: �
1 Odor: Describe any distinct odors that the discharge may have (i,e., smells strongly of oil, weak
chlorine odor, etc.): n nity
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy: //��
/ 1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
( 1 J 2 3 4 5
6, Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
( 1 2 3 4 5
7, Is there any foam in the stormwater discharge`? Q Yes Wso,
8. Is there an oil sheen in the stormwater discharge? OYes 'f ' 0
9. Is there evidence of erosion or deposition at the outfall? 0 Yes No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, mrcUor the presence of foam, oil sheen, or erosiorr/depositionuay be
indicative of pollutant exposure. These conditimrs warrant further investigatlorr.
Page 2 of 2
SWU-242, Lustmodifed 06/01120(8

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��,
��
.'
� t 1 _ f 11
1 i t � ' •��
For geddance on filling out this form, please vlstt httpsaldeq.nagovlabout/divisions/energy-mineral-land-resources/
npdes-stoimwater-gps
PermitNo.: NlCIG/rl�lO/d/O/G/
or Certificate ofCovexageNo,:
NICIGIrJI�IPJ/6'l8/yl
PacilityName: Gi-/�
oF' �is�ern((�
�¢z-� Nh'n-f•,,,,�n<^_
8utl�"i'nr�'�
County; %'u,n cc,
„„ /� �_.
Phone No. $Z Fs -
7_�eY - S �Dr
Inspector: %�� (�C xi y�/_
Date of Inspection; � I ! ! �
Time of Inspection:
Total Event Precipitation (inches): d
All permits require qualitative monitoring to be performed during a "measurable storm event "
A "measurable storm event" is a storm event that results in an actual discharge from Ehe permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signatir , J7certify that this report is �2Pir� and yomplete to the best of my knowledge:
(Signature
1. Outfall Description: _
Outfall No. 5W _ � Shuctrrre (pipe, ditch, etc.): �� �n�p
Receiving Stream:
Describe the industrial activit✓ies that occur within the outfall drainage area:
Page 1 of2
swu-zaz, Lnstmoa[sed oeiotnots

2.
Color:
Describe the color of the
discharge
using basic colors
(red, brown, blue, etc.) and tint
(light,
medium,
dark) as descriptors:
V9 C6�e
�_ L.-� "a L✓
_�°
3. or:
Describe any distinct odors
that the discharge may have
(i.e., smells strongly of oil, weak
chlorine odor,
etc.): on4L.�
4. Clarity: Choose the nnmUer which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 02 3 4 5
5. )!loathtg Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
6. Suspended Solids: Choose the number' which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
2 3 4 5
Is there any foam in the stornwater discharge? QN��o,
Is there an oil sheen in the stormwater discharge? QYes 4a'No,
Is more evidence of erosion or deposition at the outfall? Q Yes Cp'No.
10. Other Obvious indicators of 5tormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition maybe
htdicaHve of pollutant exposure. These conditions warrant further invest#gation.
Page 2 of 2
SSW-242, Last modified 06/0t12018

Y.
QualityCU
IF
Envitoonmentat
1 , . '�
1 1 11
For guidance onfilltng ottt this form, please visit https://deq.ne.govlabout/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
PermitNo.: NlC/GI.GI$lO/lJIOIOI
orCertificateofC
overage No.:
N/C/GI,�JI�IV/6/8/21
Facility Name: Ctf y
or
eA . ,4,.�^ c P-
Phone No. $ZS^ 2.Sa- ��OG `
Inspector: leetooko--
Date of Inspection:
rime of Inspection; I ;
Total fivent Precipitation (inches): �I_
All permits require qualitative monitoring to be performed during a "measurable storm event "
A "measurable storm event" is a storm event that results in an actual discharge from the pezrnitted site
outfall. The previous measurable stone event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permitteo obtains approval fiom the local DEMLR
Regional Office.
By this signa�rs;� certify that this report is accurate and complete to the best of my knowledge;
(Signahue
1. Outfall Description:
Outfall No. 5"W -�, Stmcturo (pipe, ditch, etc.): 'i7r-d ,� �n jv_
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
V4.1)eCt(� MGX:Y^LLp Q-v w'
Page 1 of 2
Swr1-242, Last madif"ied 06/nt/2018

2.
Color:
Describe the color of the
discharge using
basic colors (red, brown, blue, etc,) and tint
(light,
medium,
dark) as descriptors: J
rjjj
%r r r n 4e5 nix r
3. Odor: Des any distinct odors that the discharge may have (i.e., smells strongly of oil, we
chlorine odor, etc,): Yt (1.n a
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
G2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
storrnwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the storrnwater discharge, where I is no solids and 5 is extremely muddy:
0 2 3 4 5
7. Is there any foam in the storrnwater discharge? Q Yes INo.
CnV1sls4 •'� 5' ee4^>�or /
8. Is there an oil sheen in the storrnwater discharge? 4/yes O No. rarer so&4L1irY?s'
9. Is there evidence of erosion or deposition at the outfall? O Yes O No. �-
10. Other Obvious Indicators of Stormwater Pollution;
List and describe
Nofe: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S WU-242, Last modified 06fO120t8