NC0021474_Permit (Issuance)_19960219

NPDES DOCUWENT SCANNINO COVER SNEET
NPDES Permit: NC0021474
Mebane WWTP
Document Type: " ear it Issuanc
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Engineering Alternatives Analysis
201 Facilities Plan
Instream Assessment (67B)
Correspondence re: TP and draft permit
Permit History Date Range:
Document Date: ' ebPrua�r� 19 199
Thin document in priazted oa reuBe paper-ignore aay
content on the reireriae Bide

State of North Carolina
Department of Environment,
Health and Natural Resources { �
Division of Environmental Management
James B. Hunt, Jr., Governor ±LN
Jonathan B. Howes, Secretary p E H N F1
A. Preston Howard, Jr., P.E., Director
February 19, 1996
Mr. Michael Hite
City of Mebane
106 E.Washington Street
Mebane, North Carolina 27302
Subject: NPDES Permit Issuance
Permit No. NCO021474
Mebane WWTP
Alamance County
Dear Mr. Hite:
In accordance with the application for a discharge permit received on May 11, 1995, the Division is
forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and the U.S. Environmental Protection Agency dated December 6, 1983.
In response to your December 5, 1995 letter concerning the NPDES draft permit no. NCO021474 for
the City of Mebane, we have addressed your specific concerns as follows:
- Temperature monitoring will be required three times per week during June, July, August, and
September and once per week during the remaining months of the year at the upstream and
downstream locations and will be required daily during the entire year for the effluent.
Conductivity monitoring will be required three times per week during June, July, August, and
September and once per week during the remaining months of the year at the upstream and
downstream locations and will be required 3/week for the effluent.
- The effluent limitations and monitoring requirements sheets have been revised so that effluent
monitoring and upstream and downstream monitoring are on separate sheets. This should eliminate
any confusion regarding monitoring of parameters that are monitored both at the effluent and
instream.
- Changing the dates of the summer and winter limits would require a variance. However, the
Division of Environmental Management is considering a regulatory change regarding summer and
winter limits.
If any parts. measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty(30)
days following receipt of this letter. This request must be in the form of a written petition,conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings. Post Office Drawer 27447. Raleigh, North Carolina 276 1 1-7447. Unless such demand is
made, this decision shall be final and binding.
Please take note that this permit is not transferable. Part 11. EA. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
P.O. Box 29535,Raleigh,North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10% post-consumer paper

Mr. Hite
February 19, 1996
Page 2
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Environmental Management or permits required by the Division of Land Resources,
Coastal Area Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Paul B. Clark at telephone number
[phone], extension 580.
Sincerely,
Original Signed By
David A Goodrich
A. Preston Howard. Jr., P.E.
cc: Central Files
Winston-Salem Regional Office.Water Quality Section
Mr. Roosevelt Childress, EPA
Permits and Engineering Unit
Facility Assessment Unit
Aquatic Survey and Toxicology Unit

Permit No. NCO021474
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
City of Mebane
is hereby authorized to discharge wastewater from a facility located a — —e — _
Mebane Wastewater TreciIjtN
-
NCSR 1997 (Corrid`i nr Street)
Southwest of Mebane (
Alamance County Lsin-
1..�to receiving waters designated as Moadams Creek in the Cape Fear
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
The permit shall become effective April 1, 1996
This permit and the authorization to discharge shall expire at midnight on January 31, 2001
Signed this day February 19, 1996
Orig'mal Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NC0021474
SUPPLEMENT TO PERMIT COVER SHEET
City of Mebane
is hereby authorized to:
1 . Continue to operate the existing 2.5 MGD wastewater treatment facility consisting of a
mechanical bar screen, a grit chamber, dual 1,170,000 gallon aeration basins, three clarifiers,
sand filters, gas chlorination, chlorine contact chamber, dechlorination and aerobic sludge
digestion located at Mebane Wastewater Treatment Plant, on NCSR 1997 (Corri Por Street),
southwest of Mebane, Alamance County (See Part III of this Permit), and
CpC( , ld_ r'
2 Discharge from said treatment works at the location specified on the attached map into Moadams
Creek which is classified Class C-NSW waters in the Cape Fear River Basin.

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A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUMMER (April 1 - October 31) Permit No. NCO021474
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
oulfall(s) serial number 001. Such discharges shall be limited and monitored by the Penmittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Measurement Sample Sample
Monthly Avg. Weekly Avg. Daily Max. Frequency Type Location I
Flow 2.5 MGD Continuous Recording I or E
1301), 5-Day, 20°C 2 5.0 mg/I 7.5 ing/l 3/week Composite E, I
TSS 2 30.0 mg/I 45.0 mg/I 3/week Composite E, 1
NI13 as N 2.0 mg/I 3/week Composite E
Dissolved Oxygen 3 3/week Grab E, U, D
Fecal Coliform (geometric mean) 200/100 ml 400/100 nil 3/week Grab E, U, D
Total Residual Chlorine 17.0 1tg/I 3/week Grab E
Temperature Daily Grab E, U, D
Total Nitrogen (NO2 + NO3 +TKN) Monthly Composite E
Total Phosphorus 2.0 mg/I 4 Weekly Composite E
Chronic Toxicity 5 Quarterly Composite E
Conductivity 3/week Grab E, U, D
Cadmium 2.3 µg/I Weekly Composite E
Fluoride 1.8 ajtgll Weekly Composite E
Mercury 0.012 µg/l 0.048 µg/l Weekly Composite E
Chloride Monthly Composite E
Copper Monthly Composite E
Zinc Monthly Composite E
Footnotes:
I Sample locations: E - Effluent, I - Influent, U - Upstream, D - Downstream, for instream monitoring requirements, sec Part I11,
Condition G.
2 The monthly average effluent 130D5 and total suspended residue concentrations shall not exceed 15% of the respective influent value.
3 The daily average dissolved oxygen effluent concentrations shall not be less than 6.0 mg/l.
4 Compliance shall be based upon a quarterly average of weekly samples.
5 Chronic Toxicity (Ceriodaphnia) P/F al 90%. Samples shall be taken quarterly during the months of January, April, July, and October; See Part III,
Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - WINTER (November I - March 31) Permit No. NCO021474
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permitice as specified below:
Effluent Characteristics Discharge Limitations_ Monitoring Requirements
Measurement Sample Sample
Monthly Avg. Weekly Avg. Daily Max. Frequency Tvpc Location t
Flow 2.5 MGD Continuous Recording 1 or E
BOD, 5-Day, 20°C 2 10.0 mg/I 15.0 mg/I 3/week Composite E, I
TSS 2 30.0 mg/1 45.0 mg/I 3/week Composite E, I
NH3 as N 4.0 mg/1 3/week Composite E
Dissolved Oxygen 3 3/week Grab E, U, D
Fecal Coliform (geometric mean) 200/100 nil 400/100 nil 3/week Grab E, U, D
Total Residual Chlorine 17.0 µg/I 3/week Grab E
Temperature Daily Grab E, U, D
Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E
Total Phosphorus 2.0 mg/I 4 Weekly Composite E
Chronic Toxicity 5 Quarterly Composite E
Conductivity 3/week Grab E, U, D
Cadmium 2.3 µg/I 5.4--µg/1 Weekly Composite E
Fluoride _ 1_8 Pg/l Weekly Composite E
Mercury _ — — ---- - -- 0.012 µg/I =.048 µg/I Weekly Composite E
Chloride Monthly Composite E
Copper Monthly Composite E
Zinc Monthly Composite E
Footnotes:
I Sample locations: E - Effluent, I - Influent, U - Upstream, D - Downstream, for instream monitoring requirements, see Part 111,
Condition G.
2 The monthly average effluent BOD5 and total suspended residue concentrations shall not exceed 15%of the respective influent value.
3 The daily average dissolved oxygen effluent concentrations shall not be less than 6.0 mg/l.
4 Compliance shall be based upon a quarterly average of weekly samples.
5 Chronic Toxicity (Ceriodaphnia) P/F at 90%. Samples shall be taken quarterly during the months of January, April, July, and October; See Part III,
Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III NC0021474
G. INSTREAM MONITORING REQUIREMENTS
PARAMETERS TO BE SAMPLED
Parameter Sample Type Fre uenc
Dissolved Oxygen Grab I 3/wk (June-Sept), 1/wk (Oct-May)
Fecal Coliform Grab 3/wk (June-Se t), 1/wk (Oct-May)
Temperature Grab 3/wk (June-Sept), I/wk (Oct-May)
Conductivity Grab 3/wk (June-Sept), I/wk (Oct-Ma )
SAMPLE LOCATIONS
1. U - Upstream 100 feet of discharge.
2. D=D1, D2, and D3; DI - Downstream at NCSR 1940, Moadams Creek, D2 - Downstream at Back Creek at
NCSR 1936, D3 - Downstream at Back Creek at NC Highway 54. Upstream and downstream samples shall be
grab samples.
REPORTING REQUIREMENTS _
Data entered on a form approved by the Division and summarized in an �nnual report due by January first of the
year immediately following the summer period when sampling occurred. '
Yearly monitoring reports shall be sent to:
Instream Assessment Unit
DEM Water Quality section
P.O. Box 29535
Raleigh, NC 27626-0535

Part III Permit # NCO021474
H) CHRONIC TOXICITY PASSIFAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure(North Carolina Chronic Bioassay
Procedure-Revised *September 1989)or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is
90 % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
quarter/% monitoring using this procedure to establish compliance with the permit condition. The first test will be
performed after thirty days from the effective date of this permit during the months of January, April, July,
and October. 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 Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally,
DEM Form AT-1 (original)is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this 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 document, such as minimum control organism
survival and appropriate 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
noncompliance with monitoring requirements.
1. This permit may be modified,or revoked and reissued to change the effluent limitation on nutrients for this
discharge depending upon the following:
1. The findings of a study by the Division of Environmental Management determine nutrient control is necessary.,
2. Local actions do not successfully reduce the nutrient loading on the receiving waters.
3. The onset of problem conditions in the receiving waters.

NPDES WASTE LOAD ALLOCATION
NC0021474 Modeler Date Rec. # N
PERMIT NO.: '
PERMITTEE NAME:, City of Mebane 4 2 tt3 5 a 8 3 0 8
FACILITY NAME: City of Mebane Wastewater Treatment Plant Drainage Area(mi ) e Avg. Strcamflow (cfs): 0.8
Facility Status: Existing 7Q10 (cfs) O Winter 7Q10 (cfs) 30Q2 (cfs) . 07S
Permit Status: Renewal Toxicity Limits: IWC 90 % Acutd/C roni
Major 1 Minor Instream Monitoring:
Pipe No.: 001 Parameters Do; fats ) oo/;forma Ten, conk
Design Capacity: 2.5 MGD Upstream Xe1 Location too fT ug, rccm Jou7A/1
Domestic (% of Flow): 80 % Downstream _--) /oesr.AI LocationT /9yo o„ ADgdtMS ck
Industrial (% of Flow): 20 % (�)89ck c,r J sg /93c Q 43^.,k c,e. ',rr IV HV/Sel
Effluent Summer Winter
Comments: Characteristics
based on average flow of.814 MGD BOD5 (m ) S 0
NH3-N (mg/1) 0 Y O
RECEIVING STREAM:Moad=s Creek D.O. (mg/1) 1 '. p 6 O
Class: C-NSW TSS (mg/1) 3 0, O 3p_ 0
Sub-Basin: 03-06-02 F. Col. (/100 ml)
Roo boo
Reference USGS Quad: C 21 SE (please attach)
County: Alamance pH (SU) 6 - 9 6 — 9
Regional Office: Winston-Salem Regional Office Color,
n-e. n,j ^ 017 .0/7
Previous Exp. Date: 1/31/96 Treatment Plant Class: II -ran /
Classification changes within three miles:
/ w ocic�Y ��Q. Dtiicy IN Ak
Ce.p .? . o
M'-rfo( k, 1 , o /a ^�y8
Requested by: Charles Alvarez Date: 5/16/95
K /our,d2 YNS�R� 1. 8
Prepared by:/O �' � Date: '7 -.)7- 9S Comments: /yon;Tor �,on7�4y s (We r, z,�, c j C�/ rid ¢,
Reviewed by:,i'�/'l3fP�� �� Date: 7 ?7 9.5'
BoD s� 3s.� w.n7Pr �o.� �,�-�:.��SB� ,,3,,,� PLOTTED
3� 9s—

FACT SHEET FOR WASTELOAD ALLOCATION
Request# 8308 RECEIVED
Facility Name: City of Mebane WWTP
NPDES No.: NCO021474 N.C. Dept. of EHNR
Type of Waste: 80% domestic, 20% industrial
Facility Status: Existing J U L 14 1995
Permit Status: Renewal
Receiving Stream: Moadams Creek Winston-Salem
Stream Classification: C-NSW Regional Office
Subbasin: 03-06-02
County: Alamance Stream Characteristic:
Regional Office: WS USGS # 0209655300
Requestor: Charles Alvarez Date: 4-6-88
Date of Request: 5-16-95 Drainage Area(mi2): 0.9
Topo Quad: C21SE Summer 7Q10 (cfs): 0
Winter 7Q10 (cfs): 0
Average Flow (cfs): 0.8
30Q2 (cfs): .075
[WC (%): 100
Wasteload Allocation Summary
The town expanded to 2.5 MGD several years ago and is now requesting renewal at that flow.
Policies for NSW and zero 7Q10 streams apply. The plant has not failed a WET test since early 1992.
Since sludge is land-applied, the LTMP includes the full range of metals specified by 40CFR503. The
town does not qualify for the modified pretreatment program. At the time of the last renewal, the town
elected weekly avg/daily max toxicity limits.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: � 7 t/ '��``�" Date:
Reviewed by
Instream Assessment: / �� Date: 7////?
4_tgional Supervisor: / � Date: 7-1 k— `f 5'
Permits &Engineering: %/WNl/ n/A Date:
RETURN TO TECHNICAL SERVICES BY: AUG 1 0 1995

2
CONVENTIONAL PARAMETERS
Existing Limits:
Monthly Average
Summer Winter
Wasteflow(MGD): 2.5 2.5
BODS (mg/1): 5.0 10.0
NH3N(mg/1): 1.0 1.
DO(mg/1): 6.0 6.0
TSS (mg/1): 30.0 30.0
Fecal Col. (/100 ml): 200 200
pH (SU): 6-9 6-9
Residual Chlorine (µg/1): 17.0 17.0
Oil&Grease (mg/1):
TP(mg/1): 2.0 2.0
TN(mg/1): v
Recommended Limits:
Monthly Average
Summer Winter WQ or EL V
�e
Wasteflow (MGD): 2.5 2.5 �
BODS (mg/l): 5.0 10.0 WQ
NH3N (mg/1): L.a )'-44 WQ
DO(mg/1): 16.0 6.0
TSS (mg/1): 30.0 30.0
Fecal Col. (/100 ml): 200 200 \
pH (SU): 6-9 6-9
Residual Chlorine (µg/1): 17.0 17.0 WQ
Oil&Grease (mg/1):
TP (mg/1): 2.0 2.0 WQ
IN (mg/1):
Limits Changes Due To: Parameter(s) Affected
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other(onsite toxicity study,interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
No changes are recommended.
(See page 5 for miscellaneous and special conditions,if applicable)

3
TOXICS/METALS
Type of Tonicity Test: Chronic Toxicity (Ceriodaphnia)
Existing Limit: P/F at 90%
Recommended Limit: P/F at 90%
Monitoring Schedule: Jan, Apr, July, Oct
Existina Limits
Weekly Avg. Daily Max.
COD (mg/):
Cadmium(ugft 2.0 5.0
Chromium(ug/1): 50.0 200.0
Copper(no): Monitor monthly
Nickel (ug/l): 88.0 352.0
Lead(ug/l): 25.0 34.0
Zinc (ug/1): Monitor monthly
Cyanide (ug/1): 5.0 20.0
Phenols (ug/1):
Mercury (ugA): .012 .048
Silver(ug/1): Monitor monthly
Fluoride (mg/1): 1.8
Chloride: Monitor monthly
Aluminum: Monitor monthly
Recommended Limits
Weekly Avg. Daily Max. WQ or EL
COD (mgl):
Cadmium(ug/1): 2.0 5.0 WQ
Chromium(ug/1):
Copper(ug/1): Monitor monthly
Nickel (ug/l):
Lead(ug/1):
Zinc (ug/1): Monitor monthly
Cyanide(ug/1):
Phenols (ug/1):
Mercury (ug/1): .012 .048 WQ
Silver(ug/1): .9-
Fluoride(mg/1): 1.8 WQ
Chloride: Monitor monthly
Aluminum:
mav`i{ovecL c�,�avde.vky i vl LZlx�
Limits Chanties Due To: Parameter(s) Affected
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Other(see below) n uc+jlace Cr, Ni, Ph, CN, Ag, Al

4
Methodology for evaluating the need for toxics/metals limits has changed since the current limits were
set. Additional monitoring results are available. All affected parameters are being monitored as part of
the LTMP.
X Parameter(s)are water quality limited. For some parameters, the available load capacity of the
immediate receiving water will be consumed This may affect future water quality based effluent
limitations for additional dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.
INSTREAM MONITORING REQUIREMENTS
Upstream Location: 100 feet upstream of outfall.
Downstream Location: 1)At SR1940, on Moadams Creek;
2) At SR1936,on Back Creek;
3) At NC Highway 54, on Back Creek.
Parameters: DO, fecal coliform,temperature, conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION&SPECIAL CONDITIONS
A_dg�quacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes X No Facility is meeting current limits. No new
limits are proposed.
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes_ No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?

5
Special Instructions or Conditions
Wasteload sent to EPA? (Major)_(Y or N)
(If yes, then attach schematic, toxics spreadsheet,copy of model,or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? Y (Y or N) If yes,explain with attachments.
10Y. ���

Facility Name W W TP Permit# 3 d $ pipe# L
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina CeTiodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure-Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is—q—O-90 (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
quarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be
performed aher thirty dayyj from the effective date of this permit during the months of
4Ad Qor: rTu�y o o Effluent sampling for this testing shall be performed at the NPDES
permitLOA firW eff1dent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed,using the parameter code TGP3B.
Additionally,DEM Form AT-1 (original)is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests,as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing,this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this 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 document, such as minimum control organism
survival and appropriate 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
noncompliance with monitoring requirements.
7Q10 0 cfs
Permitted Flow of . S MGD Recommended by
Basin & Sub-basin c3—o 6 Receiving Stream Mos o. Gi.eK
County AJ+m#n cc Dame 7
QCL P!F Version 9191

* ---TOXICS ANALYSIS--- rc me nriwa,�
• Facility Name= Town of Mebane WWTP •
* NPDES#= NC0021474 • Q �` o J J1 C
' Qw(MGD) = 2.50 '
* 7Q10s(cfs)= _ 0.00 •
' IWC (rYo)_ 100.00 '
=c/ a,f- 1based on AL FINAL RESULTS = ,S^ J yrCopper •Max.PredCw er(� n � i_ 32.2 = � SsSvn((AllowableCw* Icr,, 7.0JCam'„nx=i> Max.PredCw d�oP �rti+T 35.7 .
• Allowable Cw i 50.0
r
�ykily ' Zinc •
Gvr/ • ' .Max.Pred Cw /< h,o� 761.6
A L = Allowable Cw* 50.0
* r
rr 101 * Nickel '
>OC a3* •Max.PredCw C'•�P L"!T 50.6 •,
�sx= L (tiP o I y
• Allowable C 88.0 •
r
,00 5 a Lead
> kOl-&' ' Max.Pred Cw 0( P /,Al _ 14.4 tr Q «Iy
' Allowable C 25.0
r r
3 7 5� ' Cadmium _
>de Tel '(ir aj Max.Pred Cw /<Y-P' a.O 2.8
• Allowable Cw_ /,,r7 2.0 s
r r
411 U'L = Cyanide '
• Max.Pred Cw c ioP r 2.50 = ( cam °^V\�
uL=S ► Allowable C ) 5.00 • `'
► r
Mercury
o a s . 6, Max.Pred Cw i,,-oil z 1.0
Allowable Cw0.01;t
s r
s Silver •
9'//�L • Max.Pred Cw rod 1.00
9 L : �,o * Allowable Cw* ^ c)r) 0.06 • t ^ '
r r
= Chloride '
Max.Pred Cw Mto P 492800.0 '
* Allowable Cw* 230000.0 • lc
r
Fluoride • ?
�Sr6• Max.Pred Cw STY / 1950.0 •
'•o"o Allowable C ti 1 1800.0 '
r r
----------------------
• Selenium • - r•';
Max.Pred Cw 17.5
* Allowable C 5.0 •
* y r Mon���f�O ) n L?EMI 6vi� N� � • �
Page 1 7/6/95 TOXMEB.XLS
CJ _

WHOLE EFFLUENT T07GC1TY TESTING O]SELF-MONITORING SUMMARY] Fri,Jun 161995'.
FACH 1TY RFO(IIRFMFNT YPAR JAN FFB MAR APR MAY PUN RR. AUG SIT (3(T NOV DFr
Marion Corpening Crk WWTP PERM CIIR LIM:67%(New pcnn dlN5) 91 - Pa.s --- Pass IA - - Fall - - w Pass -
NCO031879N31 Begin:V1/89 rro Puvay:Q P/F G Feb May Aug Nov N..Comp: 92 - Pass - Pas. - - Peas -- - Pass ---
Counly:McLbvcll Region:ARO Subbasin:OB30 93.- Pas. - Pas. - - Pass --- -- Pass ---
PF:3.00 S"al 94 - Pas. - - Pas. - - Pass - - Pees --
7Q10:2.30 IWC(%):66.9 Ordee 95'- Pass -
Marsh.11 WWTP PERM:24HR AC LIM P/F 90%MID 91 - N3 - FAIU -- - Passi - - Pasef -
NCO0217331001 Begin:7/IN3 Fmqucncy:Q G Feb May Aug Nov NonComp:SBJGLE 92 - Passl - -- Pass( - - Passl - - Passl.Passl ---
Ccunsy:Madiwn Region:ARO Subbasin:FRBN 93 - - Passl -- - - PAW - Pavl - - >JWI --
PF:0.40 Special .. 94 _. >1WI - -- P...I -- - P...1 -- - Paasl ---
7Q10:535 IWC(%):0.12 Orden 95 --- Passf - - --
M.yodan Wwri, PERM CIIR I.I1,1:2.5%.6%A'I'PF>1.25 91 - -- - - -- - - -- - - -
NCW2187319oI Begin:71IM2 Fmriucncy:Q I' : A M:n1un St,,Da NunCmnP:SIN(FJ: 92 -- --- - - --- - - -- Pas. --- Pass
County:Rockingham Region:WSRO Subbuin:ROA02 90 -- Pass --- - Pass - - P... - - Pass
IF:1.25 Specitl 04 ... ._. Poa. - - Pass - - pass - -- Pots
7Q1O:75 IWC(%):6 Omcc 95 - - Pass -
NIB Industries PERM:24HR P/P AC LIM 90%RIII) Y 91 - - <6 C' - - 22.5- - - 28' - -- <S,6'
NCOD00311/001 Bcgln:ll/IN2 Frtslaavcy:Q A se'Dec Marlun NonComp:SINGLE 92 30.0- -- 13.d-n --- -. <5.6' - - to 7.3' -- 4051
County:Tmnsyivatda Region:ARO Sustains:M- B01 93 - - >90.01 - - >90.01 - - >1001 -- - >1001
PP:0.030 S'ci.l 94 -- - >100( - >1WI - - >IN[ --- - Patel
7QRh 27.9 PYC(%I0.17 Omen 95 - - Pass[ -
Mebane 3YWTP PERM CUR LINf:9076 Y 91 Pass - - Pa.. --- -- Pass - -- Foil Pass
NCW21474/W1 Begiml2llN1 FauPi Q NF. A Jul Or,Jan Apr N.rCornp:Singlc 92 Pass - - - Fail Fail Pass Pass - - Pasa - --
County:Alanunm Region:WSRO Subbain:CPF02 93 Peas - -- Pas. - -- Pas. - - Pass - --
Pit 1.20 S'ei.l 94 Paas - -- Paes --- -- Pa..e --. -. Pose -
7QI0:0.00 IWC(%):IW.W Oma: 65 Pass - -- Pass --
M6.1 Indvlrio PIiRM4811RLC5OACI,IM:77%(GRAB) Y 91 - - Fail 'Pass - Pa.s -- - Foil Pass - Pass
NCO0578191001 Begin:6/INS r.'..ny:Q P? A Marlun st"Ike NonComp:SlN(ll.n 92 - -- Law Pass --- Nils -- - Pass - - Pass
Coumy:McDuwdl Rapimr APO Subb,u in:CM30 93 - -- Fnil,Pnun ._ --- RAT Pont - Fail N\ Pa.. roil
I'P:0.01 ".-nl 94 17.0 P.- Puna - - Malin,. Pun. - Ian.. ... -. 1'.11
7QIO.2.0 IWC(%):0.77 Omer: 05 Pass -- Pass ._
Middlue. WWII' PERM CHR 1IM:90% 9l - .. 3.24- -- M 13.87' - 7.80' - - N3 -.
NCO0215631001 Bel 4/I64 Frequecy:Q P/r A Feb May Aug Nov NonComp:SIN'GLE .92 - to -- >1 W Pass - Fail Fail Fall N3 Pass
County:Nish Region:PRO Subbuin:NEU07 93 - Pass -- - Fall Fail Pass NiLFad Fail Fad NlVFad Pass
Pr:o.og SNei.l SOC: InW4.4/1,97 CIIR PR'Q MONIT 90%6(IIM MAY 94 - Fail Fail Fail Fall L.I. Fail Pass - - Pass -
7QIO:0.0 IWC(%):100,0 OrPvr AUG NOV) 95 - Pass -Miller Brewing Co. PERM CIIR LIM:2.5% 91 - - - -- - - - -- - - - --
NCW2W1g01W1 Bcgin:NIN3 1lmpknry:Q PA' A Aug Nnv 16 Mny NnnCnntp:SING1.11 92 - - -- -- - - - - - - - ---
C.&u.":Rockl"gbmn Reglon:WSRO SnLb..iu:R1IA(II uS ... _. --- ... - ... Po.. ... ... P.-
Pr:5.2 Spcia 94 _. Pats --. _- Punta --- - Pass -. --- Pa.. ...
7QM 313 IWC(%):2.51 Omen 95 -- Pas. - - -
Nlinenl Rese.rch & Uadopmcnt PERM:4811R LCSO ACLIM 45%ITHD(N..Perm 6/I195) Y 91 i1Wl - - >1WI --- -- M 63.21 - 581 - -
NCOOD6351N01 Bcgin:9/lN1 Fregaency:Q A Ian Apr Jul Ost N..Camp: 92 >10aI - -- :IWI - IN, - - >1W1 - -
Couny:Cabrnu Region:MRO Subba.im YADI1 93 >IWI - -- NW>i W1 - -- 35]I,Lal. >i W1 - 72.01 - -
PF:O.025 Special 94 >l Wf - -- 38.41 66.21 - H - - H - ---
7QIOi 8.6 IWC(96):0.45 Omer. 95 H -- - Nl
Mockaville W WTP Be., Crcck PERM CHR I.IM:32%;UPON IiXP CHR LIM 37% V OF - Pass - -- Pass --- - Pass - - Pass
NC0050903A01 Begin:9/IN4 Fmqucncy:Q PIT: A Aug Nov Feb May NorCOmp:SINGI.6 92 -- Pass --- Pass --- - Pass - - Pas.
County:@sic Rcgion:WSRO Subbasin:YAD06 93 - N3 Pass -. M Pass - Pass - - Pats --
1'P:0.1916 Special
84 - Pass --- - Pass --- - Pas. --- -- Pass ---
7Q10:0.65 IWC(%):32 0dec 95 - Pass -- -
Mocks.ille W WTP Dutch...', Crk PERM CIIR LIM:7% Y 91 Pass - - Pass - - Pa.. - - Pass -
NC0021491901 Bs,,nt7/IN4 Frocuacy:Q P/F A Aprlui Oct Lan NonComp:SINGI.E 92 Pass - - Pav - - Pass - -- Pass -- --
Cowly:Wvic Region:WSRO Subbasin:YAD05 W Pass - - N4 - - Pass -- -- Pass - -
IF:0.68 Special 94 Pass - - - Pass - - Pea. - - Lot. P.ss(.) --
7Q10:15.0 IWC(%):6.57 Order' N Pass - -. Pass
0 2conse<utivefailures=significant noncompiianre Y Pre IWI Dal.Available
LEGEND: , 1.
PCRM=Pamir R<quimmcm LET=Admtra inistive Lcncr-Tanga Frequency=Monitoring fmqucney:Q-Qufrterly;M-Monthly;BM-Bimonthly;SA-Scmisnnually;A-Annudly;OWD-Only when dischargingi D-Discontinucd monimring require'ran;IS-Conducting independent study
Be.P.l4nt,rAPN,aui,d 7Q10•Haeiviny nmom low new cnarinn(cL) A alunnuly monimring inne.sci w mumhly,upon.inl1'..Ir fnilnm'-.Munllu 11un toiling nlual Occur en.IAN,AI'R,JUL,OCI' NmtCongl.Cmrcnt Cmu dinnee Requi,enaw
Pr=Pemain.dnaw(MGD) IWC%=lnsvicemwaneo.rrcnlnlion P41=14.07ailrinunicle" AC=Acule OIIR=Chronic
Dal.Notmlon:f-Pn11scad Minnciw;•-Crnottinluriasn.:nty-Mnid.brinw;ON-Ownir.value:1'-Mnnalov ofammA Inmenmec at hielext camrentmlion:an PerfnnruM by DCM l'oa I!val Comm:in Brad less
Hepaning Notation:---.Umn ram mp,ImJ;NR-Nrn mpna.vl:O-I6ginnhtg.'rQu,aler Irncility Activity.4nun:I-Innaive.N.Newly lxuu'dQ'n rnnxnurO:Il.Avlivebut tnvwlnble fonnonl 1,in,pnarion SIG.ORCtlgnamn needed .'
31 f"

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MEMO
To: WLA File
From: Jim Blose
Subject: Summary of issues for Mebane W WTP renewal
Date: July 7, 1995
The town expanded to 2.5 mgd in 1993 and has been meeting its limits and passing
toxicity tests. The draft Cape Fear basin plan rates that the NSW strategy applies to Moadams
and Back Creeks. Standard limits for streams with 7Q10=0 and 30Q2>0 also apply. 'These
approaches were used in setting the existing limits. The reasons for some of the monitoring
requirements in the current permit are not entirely clear,but based upon a review of the file I am
assuming the following: Silver monitoring is based upon old toxics spreadsheet analysis;
Aluminum monitoring is based upon presence of aluminum forming plant and detection of Al in
1989 APAM report Chloride is based upon high levels found in 1989 APAM report.
Pretreatment personnel(Joe Pearce,Bo McMinn)believe that the plant is well run and that
the pretreatment program has improved since the last renewal. Recent APAM data indicate that
chloroform is usually present in the effluent,but not at levels high enough to cause concern unless
downstream waters should be reclassified as WS. While no ambient or biomonitoring data are
available, instream monitoring data from the DMRs indicate that the stream may sometimes fail to
meet DO and fecal standards in the summer. While there are upstream WQ issues,a DO sag
below the plant may also be part of the problem.
Existing limits for conventional parameters will be unchanged. Limits and/or monitoring
requirements for some metals can be dropped based upon our current toxics methods and the latest
data. Quarterly data on all of these metals will still be available from the LTMP.
IJ OQ t/ c5�t��c'rl ohJ �s�ncJ GB��
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n/pop= (7.9o-S•So�( /S� = 4.5
�3CO I'l.dS - yS= 9.�S
North Carolina Division of Environmental Management
Water Quality Section/ Intensive Survey Group = S.�S _ S. a,
November 8, 1994
MEMORANDUM 9Od d� SS
To: Ruth Swanek/ u
Through: Jay Sauber�`fp'p
From: Howard Bryant //_) /O
Subject: Long-term BOD Analysis forMebane
County: Alamance
NPDES #NC0021474
Receiving Stream: Moadam's Creek
Sub-basin: 030602
DAY BOD NH3-N IKN-N NOX-N TN-N
0 0.01 4.0 C.90 10.9
5 1.87 0.13 1 .1 7-60 8.7
10 3.28 0.10 1 .2 7.70 8.9
15 4.73 0.10 1 .3 7.40 8.7
20 5.71 0.06 1 .4 7.60 9.0
25 6.39
30 6.86 0.09 1 .2 7.30 8.5
35 7.39
40 7.84
50 8.64
60 9.34 0.15 1 .4 7.50 8.9
70 10.05
80 10.66
90 11 .22 0.06 1 .2 7.20 8.4
100 11 .90
110 12.41
120 12.86 0.03 1 .0 7.90 8.9
166 Q14.25
Date Collected: May 25, 1994 Collected by: Johnston Test evaluation: excellent
0800-0800 pH: 8.0 Seeded:seeded
oc: Central Files
Regional Water Quality Supervisor

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------------- -- -------
Message for Jim Blose
From:Larry Ausley on Fri,Jul 7, 1995 1:01 PM
Subject: Chloroform
To:Jim Blose
chloroform,CAS#67-66-3,synonym-trichloromethane,sources-mfg.of
fluorocarbon refrigerant,propellants,and plastics,mfg.of
anesthetics and pharmaceuticals,primary source of
chlorodifluromethane,fumigant,solvent,sweetener,fire
extinguisher mfg.,electronic circuit mfg.,insecticide.Federal WQ
criteria-chronic FW aq.life-1240 xgA.
Daphnia magna 48 Hr.LC50-65.7 mg/l
Jim-as we discussed,there doen'st seem to be significant potential
for the levels encountered in the Mebane APAM to cause a toxicity
problem.

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RECEIVED
`I+ Vi"I'1 i( ry �Ltis�
1 FEB 1 .0 IM
ectiou Levels FACILITIES ASSESSMENT UNIT
L
rF
.C. Influent Efllu it Sludge Basin "Sludge Uncontrollables Detection
Disposal Level (mg/1)
X X X O. l
X X X X I
' Al X X X X X 0.1
'r Cd X X X X X 0.002
Cr X X X X X 0.005
AA Cu X X X X X 0.002
Pb X X X X X 0.01
Ho X X X X X 0.0002
O
Mo X X X X X 0.05
Ni X X X X X 0.01
Se X X X X X 0.01
As X X X X X 0.01
M Zn X X X X X 0.01
M Ag X X X X X 0.005
BOD X X X X
COD X X X X 10
"rSS X X X 2
Phos. X X X X 0.1
NH3 X X X X 0.1
% solids X 1
--r- C1 _ X X X X X 0.005
Flow X X
Na X 0.015
Ca X 0.01
M� X 0.01
K X 1
"I'ot. N. X X 0.01
SO, X 5
Page 2

cc :` Permits and Engineering
(T.echnical_Suppor.t_Branc—h--J
Alamance County Health Dept .
Central Files
WSRO
SOC PRIORITY PROJECT: Yes No
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Charles Alvarez
Date : 30 June 1995
NPDES STAFF REPORT AND RECOMMENDATION
County Alamance
Permit No. NC0021474
PART I - GENERAL INFORMATION
1 . Facility and Address : City of Mebane WWTP
� 106 East Washington Street
Mebane, NC 27302
2 . Date of Investigation: 29 June 1995
3 . Report Prepared by: W. Corey Basinger
Environmental Engineer
4 . Persons Contacted and Telephone Number:
* Ms . Linda Holt, Pretreatment Coordinator (919) 563-6141
5 . Directions to Site : From Mebane, take 3rd Street (NCSR 1962)
southwest of town and turn right onto Corrigidor Street .
The WWTP is 1/2 mile on Corrigidor Street .
6 . Discharge Point (s) , List for all discharge points :
Latitude : 360 05' 20" Longitude : 790 17" 15'
U.S .G.S . Quad No. C-21 SE U. S.G. S. Quad Name Mebane
7 . Site size and expansion area consistent with application?
_X_ Yes No If No, explain:

8 . Topography (relationship to flood plain included) : WWTP is
located adjacent to Moadams Creek.
9 . Location of nearest dwelling: Greater than 1000 feet .
10 . Receiving stream or affected surface waters : Moadams Creek
a. Classification: Class C-NSW
b. River Basin and Subbasin No. : 03-06-02
C . Describe receiving stream features and pertinent
downstream uses : Commercial/Agricultural
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a . Volume of Wastewater to be permitted: 2 . 5 MGD
(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste
Water Treatment facility? 2 . 5 MGD
C . Actual treatment capacity of the current facility
(current design capacity) ? 2 . 5 MGD
d. Date (s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years . Project # CS370572-03 March 2 , 1994
This authorization consists of the addition of two (2)
sludge aeration units with associated piping and pumps
in the existing 50 ft diameter digestor, installation
of a 4 , 500 GPM emergency effluent pump to prevent
excessive rise in water levels in the chlorine contact
tank and final filters, and other electrical control
equipment .
e . Please provide a description of existing or
substantially constructed wastewater treatment
facilities; The facility currently consists of a bar
screen, grit chamber, two (2) aeration basins, three
(3) clarifiers, sand filters, chlorine contact chamber,
aerobic digestion, and dechlorination.
f . Please provide a description of proposed wastewater
treatment facilities . N/A
g. Possible toxic impacts to surface waters : None known.
h. Pretreatment Program (POTWs only) :
in development approved X
should be required not needed

NPDES Permit Staff Report
2 . Residuals handling and utilization/disposal scheme :
a. If residuals are being land applied, please specify DEM
Permit No. WO0004033 .
Residuals Contractor AMSCO, Inc.
Telephone No. 910-766-0328
b. Residuals stabilization: PSRP X PFRP
Other
C . Landfill :
d. Other disposal/utilization scheme (Specify) :
3 . Treatment plant classification (attach completed rating
sheet) . c/-.ass W
4 . SIC Code (s) : 4952
Primary 01 Secondary 02
Main Treatment Unit Code : 0 2 1 x 3
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only) ?
N/A
2 . Special monitoring or limitations (including toxicity)
requests : None at this time .
3 . Alternative Analysis Evaluation: Has the facility evaluated
all of the non-discharge options available . Please provide
regional perspective for each option evaluated. N/A
Spray Irrigation:
Connection to Regional Sewer System:
Subsurface :
Other disposal options :

NPDES Permit Staff Report
PART IV - EVALUATION AND RECOMMENDATIONS
The City of Mebane has applied for renewal of NPDES Permit
No. NC0021474 , which covers the Mebane WWTP. During the recent
inspection, no problems were noted with operation and/or
maintenance . Also, all recently constructed equipment was
operating properly.
WSRO recommends reissuance of this permit in accordance with
Division guidelines .
cif �� �IQS
Environmental Engineev Date
p161 er Qual Regional Supervisor Date

as tym--4d.an (�� lL .V I C'V a� UI�L 4 fldness*/R
M \.Y lL ShJ 4 .t.,c Mer.KaO'Cl�kl . O/F—
Jodie Morrow
clendd seaphm T.(, Uootor
Af or Gsrr,Bu sroer
CMefofFbla
Counal 106 E.Washington Street Jimmr Jobe
Ed nooks,Ma rfro Tan Tuba,Works FlrtHar/F4e Chief
75m memar Mebane, N.C. 27302
Bob WA. [phone] ware Dy r
4rnn Irian
CUT wdk;n.00 Haan tier
I4vmtian A fErAs ZLeCor
May 19,1995
Mr. David Goodrich
NPDES Supervisor
Division of Environmental Management
DEHNR
Post Office Box 29535
Raleigh, NC 27626-0535
Re: City of Mebane NPDES Permit Renewal, Additional Information
NC 0021474
Dear Mr. Goodrich:
Please find enclosed additional information for the NPDES Permit
renewal application for the City of Mebane WWTP. The completed
application was mailed on May 9,1995.
Enclosed are three copies of priority pollutant analysis for-our
Significant Industrial Users and a sludge management plan for the
POTW.
If you or your staff have any questions concerning this application, do
not hesitate to contact me at 1 -919-563-6141.
Respectfully,
Michael Hite
Wastewater Director
Chartered :n 1881

City of Mebane WWTP
Sludge Management Plan
Equipment
One Parkson Rotary Sludge Thickener
Two Stranco Polymer Feed Pumps with separate mixing tanks
Variable Frequency Control Panel to regulate the waste flow
Primary Aerobic Digester, 220,000 gallons
Secondary Aerobic Digester, 420,000 gallons
Operation
The waste activated sludge is pumped from the return sludge building
to the sludge thickener building. The waste sludge is approximately
0.7 % solids. The sludge is mixed with polymer before entering a
rotary sludge thickener. The sludge proceeds through the rotary
thickener allowing the water to leave and be returned to the head of
the plant. The thickened sludge is discharged to the primary aerobic
digester. The thickened sludge is approximately 5.5 to 6.0 % solids.
When the level in the primary digester reaches a certain level, it flows
to the secondary digester. The sludge can also be pumped to the
second digester. When both digesters are about two-thirds full, the
contents of both digesters are mixed together to get a consistent
solids content in both digesters. The detention time is 90 days at the
designed plant flow of 2.5 mgd.
The sludge is checked quarterly for Class B residuals:
a. Less than 2,000,000 Colony Forming Units per gram of total
dry solids
b. Specific oxygen uptake rate (SOUR) of less than or equal to
1 .5 milligrams of oxygen per hour per gram of total dry solids
Page 1

Additional stabilization is provided if needed:
Pathogen Reduction
Alkaline Stabilization: Sufficient alkaline admixture (Hydrated Lime) is
introduced to the sludge to raise the pH of the sludge to 12 or greater
and the pH of the sludge will remain at 12 or greater for a two hour
period without any additional alkaline additive.
Vector Attraction Reduction
Option Six: This requires that the sludge pH remain at 12 or higher for
at least two hours, and shall not fall below 11.5 for an additional
twenty-two hours without any additional alkaline treatment.
AMSCO, City of Mebane contractor, will perform Alkaline stabilization
of the sludge prior to residual transport and application.
Page 2

North Carolina Division of Environmental Management
Water Quality Section/ Intensive Survey Group
November 8, 1994
MEMORANDUM
To: Ruth Swanek/
Through: Jay Sauber�`((iA
From: Howard Bryant /044A
Subject: Long-term BOD Analysis for Mebane
County: Alamance
NPDES #NC0021474
Receiving Stream: Moadam's Creek
Sub-basin: 030662
DAY BOD I 3-N TKN-N NOX-N TN-N
0 0.01 4.0 6.90 10.9
5 1.87 0.13 1 .1 7.60 8.7
10 3.28 0.10 1 .2 7.70 8.9
15 4.73 0.10 1 .3 7.40 8.7
20 5.71 0.06 1 .4 7.60 9.0
25 6.39
30 6.86 0.09 1 .2 7.30 8.5
35 7.39
40 7.84
50 8.64
60 9.34 0.15 1 .4 7.50 8.9
70 10.05
80 10.66
90 11.22 0.06 1 .2 7.20 8.4
100 11 .90
110 12.41
120 12.86 0.03 1 .0 7.90 8.9
166 14.25
Date Collected: May 25, 1994 Collected by: Johnston Test evaluation: excellent
0800-0800 pH:8.0 Seeded:seeded
cc: Central Files
Regional Water Quality Supervisor