Page 1 of 44
Permit No. WA0 023451

Issuance Date: August 27 , 2013
Effective Date: October 1, 2013 Expiration Date: September 30, 2018



### National Pollutant Discharge Elimination System Waste Discharge Permit No. WA 0 023451

State of Washington

DEPARTMENT OF ECOLOGY Northwest Regional Office
3190 160 th Avenue SE
Bellevue

, WA 98008

- 5452

In compliance with the provisions of The State of Washington Water Pollution Control Law Chapter 90.48 Revised Code of Washington

and
The Federal Water Pollution Control Act (The Clean Water Act) Title 33 United States Code, Section 1342 et seq.

L AKEH AVEN UTILITY DISTRICT

– REDONDO WWTP

31627 1st Avenue South Federal Way, WA 98023

is authorized to discharge in accordance with the Special and General Conditions that follow.

Plant Location:
Redondo Wastewater Treatment Plant
515 South 288 th Street Des Moines, WA 98198 King County Receiving Water: Puget Sound

– Poverty Bay

Treatment Type: Trickling Filter (Secondary Treatment)

Kevin C. Fitzpatrick Water Quality Section Manager Northwest Regional Office Washington State Department of EcologyPage 2 of 44
Permit No. WA0 023451



### Table of Contents

Summary of Permit Report Submittals

................................ ................................ ......................... 4

Special Conditions

................................ ................................ ................................ .......................... 5

S1. Discharge limits

................................ ................................ ................................ ................... 5

S1.A. Effluent limits

................................ ................................ ................................ ..................... 5
S1.B. Mixing zone authorization

................................ ................................ ................................ .. 6

S2

. Monitoring requirements

................................ ................................ ................................ ... 7

S2.A. Monitoring schedule

................................ ................................ ................................ ........... 7
S2.B. Sampling and analytical procedures

................................ ................................ ................... 9
S2.C. Flow measurement, field measurement, and continuous monitoring devices

.................... 9
S2.D. Laboratory accreditation

................................ ................................ ................................ ... 10
S2.E. Request for reduction in monitoring

................................ ................................ ................. 10

S3. Reporting and recording requirements

................................ ................................ ........... 10

S3.A. Reporting

................................ ................................ ................................ .......................... 10
S3.B. Records retention

................................ ................................ ................................ .............. 12
S3.C. Recording of results

................................ ................................ ................................ .......... 12
S3.D. Additional monitoring by the Permittee

................................ ................................ ........... 13
S3.E. Reporting permit violations

................................ ................................ .............................. 13
S3.F. Other reporting

................................ ................................ ................................ .................. 14
S3.G. Main taining a copy of this permit

................................ ................................ ..................... 15

S4. Facility loading

................................ ................................ ................................ .................. 15

S4.A. Design criteria

................................ ................................ ................................ ................... 15

S4.B. Plan s for maintaining adequate capacity

................................ ................................ ........... 15
S4.C. Duty to mitigate

................................ ................................ ................................ ................ 16
S4.D. Notification of new or altered sources

................................ ................................ .............. 16
S4.E. Infiltration and inflow evaluation

................................ ................................ ..................... 16

S5. Operation and maintenance

................................ ................................ ............................. 16

S5.A. Certified operator

................................ ................................ ................................ .............. 17
S5.B. Op eration and maintenance program

................................ ................................ ................ 17
S5.C. Short

- term reduction

................................ ................................ ................................ ......... 17
S5.D. Electrical power failure

................................ ................................ ................................ ..... 17
S5 .E. Prevent connection of inflow

................................ ................................ ............................ 18
S5.F. Bypass procedures

................................ ................................ ................................ ............ 18
S5.G. Operations and maintenance (O&M) manual

................................ ................................ ... 19

S6. Pretreatment

................................ ................................ ................................ ...................... 20

S6.A. General requirements

................................ ................................ ................................ ........ 20
S6.B. Duty to enforce discharge prohibitions

................................ ................................ ............. 21
S6.C. Wastewater discharge permit required

................................ ................................ .............. 22
S6.D. Identification and reporting of existing, new, and proposed industri al users

................... 22

S7. Solid wastes

................................ ................................ ................................ ........................ 23

S7.A. Solid waste handling

................................ ................................ ................................ ......... 23
S7.B. Leachate

................................ ................................ ................................ ............................ 23Page 3 of 44
Permit No. WA0 023451

S8. Application for permit renewal or modification for facility changes

........................... 23

S9. Sediment monitoring

................................ ................................ ................................ ......... 23

S9.A. Sediment sampling and analysis plan

................................ ................................ ............... 23
S9.B. Sediment data report

................................ ................................ ................................ ......... 23

S10. Acute toxicity

................................ ................................ ................................ ...................... 24

S10.A. Effluent characterization

................................ ................................ ................................ ... 24
S10.B. Effluent limit for acute toxicity

................................ ................................ ......................... 24
S10.C. Compliance with the effluent limit for acute toxicity

................................ ....................... 25
S10.D. Compliance testing for acute toxicity

................................ ................................ ............... 25
S10.E. Response to noncompliance with the effluent limit for acute toxicity

.............................. 25
S10.F. Testing when there is no permit limit for acute toxicity (if the characterization testing in S10.A shows no acute toxicity)

................................ ................................ ........................ 27
S10.G. Sampling and reporting requirements

................................ ................................ ............... 27

S11. Chronic toxicity

................................ ................................ ................................ .................. 28

S11.A. Testing when there is no permit limit for chronic toxicity

................................ ............... 28
S11.B. Sampling and reporting requirements

................................ ................................ ............... 28

General Conditions

................................ ................................ ................................ ...................... 30

G1. Signatory requirements

................................ ................................ ................................ .. 30

G2. Ri ght of inspection and entry

................................ ................................ ......................... 31

G3. Permit actions

................................ ................................ ................................ .................. 31

G4. Reporting planned changes

................................ ................................ ............................ 32

G5

. Plan review required

................................ ................................ ................................ ....... 33

G6. Compliance with other laws and statutes

................................ ................................ ..... 33

G7. Transfer of this permit

................................ ................................ ................................ ... 33

G8. Reduced production for compliance

................................ ................................ ............. 34

G9. Removed substances

................................ ................................ ................................ ....... 34

G10. Duty to provide information

................................ ................................ .......................... 34

G11. Other requirements of 40 CFR

................................ ................................ ...................... 34

G12. Additional monitoring

................................ ................................ ................................ .... 34

G13. Payment of fees

................................ ................................ ................................ ................ 34

G14. Penalties for violating permit conditions

................................ ................................ ...... 34

G15. Upset

................................ ................................ ................................ ................................ . 35

G16. Property rights

................................ ................................ ................................ ................ 35

G17. Duty to comply

................................ ................................ ................................ ................ 35

G18. Toxic pollutants

................................ ................................ ................................ ............... 35

G19. Penal ties for tampering

................................ ................................ ................................ .. 36

G20. Compliance schedules

................................ ................................ ................................ ..... 36

G21. Service agreement review

................................ ................................ ............................... 36
Ap pendix A

................................ ................................ ................................ ................................ ... 37Page 4 of 44
Permit No. WA0 023451



### Summary of Permit Report Submittals

Refer to the Special and General Conditions of this permit for additional submittal requirements.

Permit Section Submittal Frequency First Submittal Date

S3.A Discharge Monitoring Report Monthly November 15, 2013
S3.A Final Effluent M onitoring Report Submittal 1/ year in January J anuary 15 , 201 4
S3.E Reporting Permit Violations As necessary
S3.E.a Reporting Permit Violations

– Immediate

Reporting As necessary

S3.E.b Reporting Permit Violations

– 24

- Hour

Reporting As necessary

S3.E.c Reporting Permit Violations

– Report within

Five Days As necessary

S3.E.e Reporting Permit Violations

– All Other

Reporting Monthly as

necessary S3.F Other Reporting As necessary
S4.B Plans for Maintaining Adequate Capacity As necessary
S4.D Notification of New or Altered Sources As necessary
S4.E Infiltration and Inflow Evaluation 1/permit cycle April 30, 2016
S5.F Bypass Notification As necessary
S5.G Operations and Maintenance Manual Update 1/permit cycle Ju ne 30 , 2015
S5.G Operations and Maintenance Manual Review

Confirmation Letter 1/permit cycle Ju ne 30 , 2017

S8 Application for Permit Renewal 1/permit cycle September 30, 2017
S 9 .A Sediment Baseline Sampling and Analysis

Plan 1/permit cycle March 31, 2015

S 9 .B Sediment Chemistry Analyses 1/permit cycle March 31, 201 7
S 10 .A Acute Toxicity Characterization Report 4/permit cycle January 30, 2014 April 30, 2014 July 30, 2014 October 30

, 2014
S 10 .D Acute Toxicity Compliance Monitoring

Reports IF Acute Toxicity Limit is Triggered January 30, 2015 and

each subsequent 4/30, 7/30, 10/30, and 1/30
S 10 .E Acute Toxicity: “Causes and Preventative

Measures for Transient Events” As necessary

S 10 .E Acute Toxicity TI/TRE Plan As necessary
S 10 .F Acute Toxicity Effluent Test Results 2/permit cycle
IF NO LIMIT October 30

, 2016

April 30, 2017
S11.A Chronic Toxicity: Effluent Testing Results 2 /permit cycle January 30, 201 7 July 3 0 , 2017
G1 Notice of Change in Authorization As necessary
G4 Reporting Planned Changes As necessary
G5 Engineering Report for Construction or

Modification Activities As necessary

G7 Notice of Permit Transfer As necessary
G10 Duty to Provide Information As necessary
G13 Payment of Fees As assessed
G20 Compliance Schedules As necessary
G21 Contract Submittal As necessaryPage 5 of 44
Permit No. WA0 023451



### Special Conditions

S1. Discharge limits

S1. A. Effluent limits

All discharges and activities authorized by this permit must comply with the terms and conditions of this permit. The discharge of any of the following pollutants

more frequently than, or at a level in excess of, that identified and authorized by this per mit violates the terms and conditions of this permit.

Beginning on th e effective date of this permit , the Permittee may discharge
treated municipal wastewater to the Puget Sound

– Poverty Bay at the permitted location subject to compliance with the followi ng limits:

Effluent Limits: Outfall # 00 1

Latitude : 47.34 941 Longitude : - 122.33 8038

Parameter Average Monthly a Average Weekly b

Carbonaceous Biochemical Oxygen Demand (5

- day) ( C BOD 5 ) 25 milligrams/liter (mg/L) 1,168 pounds/day (lbs/day)
85% removal of influent C BOD 5 40 mg/L 1,868 lbs/day

Total Suspended Solids (TSS) 30 mg/L 1,401 lbs/day
85% removal of influent TSS 45 mg/L 2,102 lbs/day

Parameter M inimum Maximum
pH 6.0 standard units 9.0 standard units

Parameter Monthly G eometric mean Weekly G eometric mean

Fecal Coliform Bacteria c 200/100 milliliter (mL) 400/100 mL

Parameter Average Monthly Maximum Daily d

Total Residual Chlorine e 120 micrograms/liter (μg/L) 312 μg/L

a Average monthly effluent limit means the highest allowable average of daily discharges over a calendar month. To calculate the discharge value to compare to the limit, you add the value of each daily discharge measured during a calendar month and divide t his sum by the total number of daily discharges measured. See footnote c for fecal coliform calculations.

b Average weekly discharge limitation means the highest allowable average of “daily discharges” over a calendar week, calculated as the sum of all “ daily discharges” measured during a calendar week divided by the number of “daily discharges” measured during that week. See footnote c for fecal
coliform calculations.

c Ecology provides directions to calculate the monthly and the weekly geometric mean in publication No.
04

- 10

- 020, Information Manual for Treatment Plant Operators available at: http://www.ecy.wa.gov/pubs/0410020.pdf

d Maximum daily effluent limit is the highest allowab le daily discharge. The daily discharge is the average discharge of a pollutant measured during a calendar day. For pollutants with limits expressed in units of mass, calculate the daily discharge as the total mass of the pollutant discharged over the
da y. This does not apply to pH or temperature.

e Chlorine limits apply only during emergency periods when UV disinfection is not available and the Permittee uses chlorine for disinfection. During normal operations with UV disinfection, chlorine limits
do no t apply. When not using chlorine during the monitoring period, enter “no discharge” for chlorine on the DMR for the period.Page 6 of 44
Permit No. WA0 023451

24 inch HDPE Outfall Pipe w/ open end port Plan View

Chronic Mixing Zone Boundary

Side View

- 400 ft MLLW 120 ft

0 ft MLLW Acute Mixing Zone Boundary

Figure 1. Out fall Mixing Zones 1200 ft S1.B. Mixing zone authorization

Mixing zone for O utfall N o.00 1

The following paragraphs define the maximum boundaries of the mixing zones:

Chronic mixing zone

The mixing zone is a circle with radius of 6 00 f eet ( 182.9 meters) measured from the center of each discharge port. The mixing zone extends from the discharge
port to the top of the water surface. The concentration of po llutants at the edge of the chronic zone must meet chronic aquatic life criteria and human health criteria.

Acute mixing zone

The acute mixing zone is a circle with radius of 6 0 feet ( 18.3 meters) measured
from the center of the discharge port. The mixing zone extends from the discharge port to the top of the water surface. The concentration of pollutants at the edge of the acute zone must meet acute aquatic life criteria.

Available Dilution (dilution factor) Acute Aquatic Life Criteria 79

Chronic Aquatic Life Criteria 182

Human Health Criteria

- Carcinogen 182

Human Health Criteria

- Non

- carcinogen 182

The horizontal dimensions and boundaries of the mixing zone are as depicted in Figure 1.Page 7 of 44
Permit No. WA0 023451

S2. Monitoring requirements

S2. A. Monitoring schedule

The Permittee must monitor in accordance with the following schedule and the requirements specified in Appendix A.

Parameter Units & Speciation Minimum Sampling Frequency Sample Type

(1) Wastewater influent Wastewater Influent means the raw sewage flow from the collection system into the treatment facility

. Sample the wastewater entering the headworks of the treatment plant excluding any side

- stream returns from inside the plant

. BOD 5 mg/L 1/week 24

- hour composite a

BOD 5 lbs/day 1/week Calculated b

C BOD 5 mg/L 3/week 24

- hour composite
C BOD 5 lbs/day 3/week Calculated
TSS mg/L 3/week 24

- hour composite
TSS lbs/day 3/week Calculated (2) Final wastewater effluent Final Wastewater Effluent means wastewater exiting the last treatment process or operation. Typically, this is after or at the exit from the chlorine contact chamber or other disinfection process. The Permittee may take effluent samples for the BOD 5 analysis before or after the disinfection process. If taken after,
the Permittee mus t dechlorinate and reseed the sample.
Flow mgd Continuous c Metered/recorded

C BOD 5 mg/L 3/week 24

- hour composite
C BOD 5 lbs/day 3/week Calculated
C BOD 5 % removal d 1/month Calculated

TSS mg/L 3/week 24

- hour composite
TSS lbs/day 3/week Calculated
TSS % removal 1/month Calculated Chlorine (Total Residual) e μg/L 1/day Grab

Fecal Coliform f # /100 mL 3/week g Grab h

pH i Standard Units Daily Grab or Measured
Temperature j Degrees centigrade (  C ) Daily Grab or Measure d (3) Whole effluent toxicity testing

– final wastewater effluent Acute Toxicity Testing

– Characterization See S10.A Quarterly for 1 year beginning 4 th quarter
2013 24

- hr composite

Acute Toxicity Testing

– Compliance
IF ACUTE WET LIMIT
IS TRIGGERED See S10.D Quarterly beginning 4 th
quarter 2014 24

- hr composite

Acute Toxicity Testing

– Reapplication IF NO ACUTE WET
LIMIT See S10.F 3 rd Quarter 2016 &

1 st Quarter 2017 24

- hr composite

Chronic Toxicity Testing 4 th Quarter 2016 &

2 nd Quarter 2017 24

- hour composite

( 4 ) Effluent characterization

– final wastewater effluent
Total Ammonia mg/L as N Monthly k 24

- hour composite Total Phosphorus mg/L as P Monthly 24

- hour composite
Soluble Reactive mg/L as P Monthly 24

- hour compositePage 8 of 44
Permit No. WA0 023451

Parameter Units & Speciation Minimum Sampling Frequency Sample Type

Phosphorus Nitrate plus Nitrite Nitrogen mg/L as N Monthly Grab

Total Kjeldahl Nitrogen (TKN) mg/L as N Monthly 24

- hour composite

( 5 ) Permit renewal application requirements

– final wastewater effluent The Permittee must record and report the wastewater treatment plant flow discharged on the day it collects the sample for priority pollutant testing with the discharge monitoring report. Dissolved Oxygen mg/L Once per year Grab
Oil and Grease mg/L Once per year Grab
Total Dissolved Solids mg/L Once per year 24

- Hour composite
Total Hardness mg/L Once per year 24

- Hour composite Priority Pollutants (PP) see Appendix A

– M etals , Cyanide & Total
Phenols μg/L; nanograms (ng/L) for mercury Once per year 24

- Hour composite Grab for mercury

PP

– Volatil e Compounds μg/L Once per year Grab

PP

– Aci d C ompounds μg/L Once per year 24

- Hour composite

PP

– Base / neutral C ompounds μg/L Once per year 24

- Hour composite

(6) Sediment study As specified in Special Condition S 9.

a 24

- hour composite means a series of individual samples collected over a 24

- hour period into a single container, and analyzed as one sample.

b Calculated m eans figured concurrently with the respective sample, using the following formula: Concentration (in mg/L) X Flow (in MGD) X Conversion Factor (8.34) = lbs/day

c Continuous means uninterrupted except for brief lengths of time for calibration, power failure, or unanticipated equipment repair or maintenance.

d % removal = Influent concentration (mg/L)

– Effluent concentration (mg/L) x 100 Influent concentration (mg/L)
Calculate the p ercent (%) removal of C BOD 5 and TSS using the above equation.

e The Permittee must monitor total chlorine residual concentrations only when using chlorine for disinfection purposes.

f Report a numerical value for fecal coliforms following the procedures in Ecology’s Information Manual for Wastewater Treatment Plant Operators , Publication Number 04

- 10

- 020 available at: http://www.ecy.wa.gov/programs/wq/permits/guidance.ht ml . Do not report a result as too numerous to count (TNTC).

g 3/week means three (3) times during each calendar week.

h Grab means an individual sample collected over a fifteen (15) minute, or less, period.

i The Permittee must report the instantaneous maximum and minimum pH daily. Do not average pH
values.
j Temperature grab sampling must occur when the effluent is at or near its daily maximum temperature, which usually occurs in the late afternoon. If meas uring temperature continuously, the Permittee must determine and report a daily maximum from half

- hour measurements in a 24

- hour period. Continuous monitoring instruments must achieve an accuracy of 0.2 degrees C and the Permittee must verify

accuracy annu ally.

k Monthly means once every calendar month.Page 9 of 44
Permit No. WA0 023451

S2. B. Sampling and analytical procedures

Samples and measurements taken to meet the requirements of this permit must represent the volume and nature of the monitored parameters. The Permittee must
conduct representative sampling of any unusual discharge or discharge condition, including bypasses, upsets, and maintenance

- related conditions that may affect effluent quality.

Sampling and analytical methods used to meet the monitoring requirements specified in this permit must conform to the latest revision of the Guidelines Establishing Test Procedures for the Analysis of Pollutants contained in 40 CFR

Part 136 (or as applicable in 40 CFR subchapters N [Parts 400

– 471] or O [Parts
501

- 503]) unless otherwise specified in this permit . Ecology may only specify alternative methods for parameters without permit limits and for those parameters without an EPA approved test method in 40 CFR Part 136

.
S2. C. F low measurement, field measurement

, and continuous monit

oring devices

The Permittee must:

1. Select and use appropriate flow measurement, field measurement, and continuous monitoring devices and methods consistent with accepted scientific practices.

2. Install, calibrate, and maintain these devices to ensure the accuracy of the measurements is consistent with the accepted industry standard and the manufacturer’s recommendation for that type of device.

3. Calibrate continuous monitoring instruments weekly unless it can demonstrate a longer period is sufficient based on monitoring records. The Permittee:

a. May calibrate apparatus for continuous monitoring of dissolved oxygen by
air calibration.

b. Must calibrate continuous pH measurement instruments using a grab sample analyzed in the lab with a pH meter calibrated with sta ndard buffers and analyzed within 15 minutes of sampling.

c. Must calibrate continuous chlorine measurement instruments using a grab sample analyzed in the laboratory within 15 minutes of sampling.

4. Calibrate micro

- recording temperature devices , known as therm istors, using protocols from Ecology’s Quality Assurance Project Plan Development Tool ( Standard Operating Procedures for Continuous Temperature Monitoring of
Fresh Water Rivers and Streams Version 1.0 10/26/2011 ). This document is
available online at: http://www.ecy.wa.gov/programs/eap/qa/docs/ECY_EAP_SOP_Cont_Temp_Mon_A mbient_v1_0EAP080.pdf Calibration as specified in this document is not required if the Permittee uses recording devices certified by the manufacturer

.
5. Use field measurement devices as directed by the manufacturer and do not use reagents beyond their expiration dates.Page 10 of 44
Permit No. WA0 023451

6. Calibrate these devices at the frequency recommended by the manufact urer.

7. Calibrate flow

- monitoring devices at a minimum frequency of at least one calibration per year.

8. Maintain calibration records for at least three years.

S2. D. Laboratory accreditation

The Permittee must ensure that all monitoring data required by Ecolog y for permit specified parameters is prepared by a laboratory registered or accredited under the provisions of chapter 173

- 50 WAC

, Accreditation of Environmental Laboratories

. Flow, temperature, settleable solids, conductivity, pH, and internal process co ntrol
parameters ar e exempt from this requirement.

S2. E

. R equest for reduction in monitoring

The Permittee may request a reduction of the sampling frequency after twelve (12) months of monitoring. Ecology will review each request and at its discretion grant the request when it reissues the permit or by a permit modification

.
The Permittee must:

1. P rovide a written request.

2. Clearly state the parameters for which it is requesting reduced monitoring.

3. Clearly state the justification for the reduction.

S3. Reporting and recording requirements

The Permittee must monitor and report in accordance with the following conditions. Falsification of information submitted to Ecology is a violation of the terms and conditions of this permit.

S3. A. Reporting

The first monitoring period begins on the effective date of the permit. The
Permittee must:

1. Summarize, report, and submit monitoring data obtained during each monitoring period on the electronic Discharge Monitoring Report (DMR) form provided by Ecology within W Q WebDMR . Include data fo r each of the parameters tabulated in Special Condition S2 an d as required by the form

. Report a value for each day sampling occurred (unless specifically exempted in the permit) and for the summary values (when applicable) included on the
electronic form.

To find out more information and to sign up for W Q WebDMR go to: http://www.ecy.wa.gov/programs/wq/permits/paris/webdmr.html

If unable to submit electronically (for example, if you do not have an internet connection) , the Permittee must co ntact Ecology to request a waiver and
obtain instructions on ho w to obtain a paper copy DMR.Page 11 of 44
Permit No. WA0 023451

2. E nter the “no discharge” reporting code for an entire DMR, for a specific monitoring point, or for a specific parameter as appropriate , if the Permittee
did not d ischarge wastewater or a specific pollutant during a given monitoring period.

3. Report single analytical values below detection as “ less than the detection level (DL)” by entering < followed by the numeric value of the detection level (e.g. < 2.0) on the D MR . If the method used did not meet the minimum DL
and quantitation level ( QL ) identified in the permit, report the actual QL and

DL in the comment s or in the location provided

.
4. Report the test method used for analysis in the comments if the laboratory used an alternative method not specified in the permit and as allowed in Appendix A

.
5. Calculate average values (unless otherwise specified in the permit) using:

a. T he reported numeric value for all parameters measured between the

agency

- required detection value and the agency

- required quantitation
value.

b. O ne

- half the detection value (f or values reported below detection ) if the lab detected the parameter in another sample for the reporting period.

c. Z ero (f

or values reported below detection ) if the lab did no t detect the parameter in another sample for the reporting period

.
6. Report single

- sample grouped parameters (for example priority pollutants, PAHs, pulp and paper chlorophenolics, TTOs) on the W Q WebDMR form and

i nclude: sampl e date, concentration detected, detection limit (DL) (as necessary)

, and laboratory quantitation level (QL) (as necessary) . The
Permittee must also submit a n electronic PDF copy of the laboratory report using W Q WebDMR

. If the Permittee has obtained a waiver from electronic reporting or if submitting prior to the compliance date, the Permittee must s ubmit a paper copy of the laboratory report providing the following information : date sampled , sample location, date of analysis, parameter name, CAS number, analytical method/number, detectio n limit (DL), laboratory quantitation level (QL), reporting units, and concentration detected

.
The contract laboratory reports must also include information on the chain of custody, QA/QC results, and documentation of accreditation for the
parameter.

7. Ensu re that DMRs are electronically submitted no later than the dates specified below , unless otherwise specified in this permit.

I f the Permittee has obtained a waiver

, it must ensure that paper forms are postmarked or received by Ecology no later than the dates specified below, unless otherwise specified in this permit

.Page 12 of 44
Permit No. WA0 023451

8. Submit DMRs for parameters with the monitoring frequencies specified in S2 (monthly, quarterly, annual, etc.) at the reporting schedule identified below.
The Permittee must:

a. Submit monthly DMRs by the 15 th day of the following month. The first
submittal is November 15, 2013.

b. Submit the annual monitoring report under Special Condition S2A. (5) in January each year. The first submittal is January 15 , 2014.

c. Submit permit renewal application monitoring data in WQWebDMR and electronic files (EXCEL files) to permit manager as required in Special Condition S2 by September 30, 20 17

. I f the Permittee has obtained a waiver from Ecology, it must submit the permit renewal application monitoring data in a report by September 30, 2017

.
9. Submit reports to Ecology online using Ecology’s electronic W Q Web DMR
submittal forms (electronic DMRs) as required above. S end paper reports to Ecology at:

Water Quality Permit Coordinator

Department of Ecology Northwest Regional Office
3190 160 th Avenue SE Bellevue, WA 98008

- 5452

S3. B. Records retention

The Permittee must retain records of all monitoring information for a minimum of three (3) years. Such information must include all calibration and maintenance records and all original recordings for continuous monitoring instrumentation, copies of all re ports required by this permit, and records of all data used to complete the application for this permit. The Permittee must extend this period of retention during the course of any unresolved litigation regarding the discharge of pollutants by the Permitt ee or when requested by Ecology.

S3. C. Recording of results

For each measurement or sample taken, the Permittee must record the following
information:

1. The date, exact place, method, and time of sampling or measurement

.
2. The individual who perfor med the sampling or measurement

.
3. The da tes the analyses were performed

.
4. The individual who performed the analyses

.
5. The analyt ical techniques or methods used

.
6. The results of all analyses

.Page 13 of 44
Permit No. WA0 023451

S3.D. A dditional monitoring by the P ermittee

If the Permittee monitors any pollutant more frequently than required by Special Condition S2 of this permit, then the Permittee must include the results of such monitoring in the calculation and reporting of the data submitted in the
Permittee's DMR unles s otherwise specified by Special Condition S2

.
S3. E. Reporting permit violations

The Permittee must take the following actions when it violates or is unable to comply with any permit condition:

1. Immediately take action to stop, contain, and cleanup unautho rized discharges or otherwise stop the noncompliance and correct the problem.

2. If applicable, immediately repeat sampling and analysis. Submit the results of any repeat sampling to Ecology within thirty (30) days of sampling.

a. Immediate reporting

The Pe rmittee must immediately report to Ecology and the Department of Health, Shellfish Program

, and the King County Department of Public Health (at the numbers listed below) , all:

 F ailure s of the disinfection system

.

 C ollection system overflows that may reach surface waters

.

 P lant bypass es discharging to marine waters

.

 Any other failures of the sewage system (pipe breaks, etc.)

Northwest Regional Office 425

- 649

- 7000 Department of Health, Shellfish Program 360

- 236

- 3330 (business hours)

360

- 789

- 8962 ( after business hours) King County Department of Public Health (Wastewater Program) 206

- 296

- 4932

b. Twenty

- four

- hour reporting

The Permittee must report the following occurrences of noncompliance by telephone, to Ecology at the telephone numbers listed above , within 24 hours from the time the Permittee becomes aware of any of the following
circumstances:

1. Any noncompliance that may endanger health or the environment, unless previously reported under immediate reporting requirements

.
2. Any unanticipated bypass that causes an exceedance of an effluent limit in the permit (See Part S5.F , “Bypass Procedures”).

3. Any upset that causes an exce e dan ce of an effluent limit in the permit (See G.15, “Upset”).Page 14 of 44
Permit No. WA0 023451

4. Any violation of a maximum daily or inst antaneous maximum discharge limit for any of the pollutants in Section S1.A of this permit.

5. Any overflow prior to the treatment works, whether or not such overflow endangers health or the environment or exceeds any effluent limit in the permit.

c. Report w ithin five days

The Permittee must also submit a written report within five days of the time that the Permittee becomes aware of any reportable event under subparts a or b, above. The report must contain :

1. A description of the noncompliance and its cause.

2. The period of noncompliance, including exact dates and times.

3. The estimated time the Permittee expects the noncompliance to continue if not yet corrected.

4. Steps taken or planned to reduce, eliminate, and p revent recurrence of the noncompliance.

5. If the noncompliance involves an overflow prior to the treatment works, an estimate of the quantity (in gallons) of untreated overflow.

d. Waiver of written reports

Ecology may waive the written report required in su bpart c, above, on a

case

- by

- case basis upon request if the Permittee has submitted a timely oral
report.

e. All other permit violation reporting

The Permittee must report all permit violations, which do not require immediate or within 24 hours reporting, when it submits monitoring reports for S3.A ("Reporting"). The reports must contain the information listed in subpart c, above. Compliance with these requirements does not relieve the Permittee from responsibility to maintain continuous compliance with t he terms and conditions of this permit or the resulting liability for failure to comply.

f. Report submittal

The Permittee must submit reports to the address listed in S 3.A

.
S3.F. Other reporting

a. Spills of Oil or Hazardous Materials

The Permittee must report a spill of oil or hazardous materials in accordance with the requirements of RCW 90.56.280 and chapter 173

- 303

- 145 WAC

. You can obtain further instructions at the following website: http://www.ecy.wa.gov/programs/spills/other/reportaspill.htm

.Page 15 of 44
Permit No. WA0 023451

b. Failure to submit relevant or correct facts

Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application, or in any report to Ecology, it must submit such facts or information promptly

.
S3. G. M aintaining a copy of this permit

The Permittee must keep a copy of this permit at the facility and make it available upon request to Ecology inspectors.

S4. Facility loading

S4. A. Design criteria

The flows or waste loads for the permitted facility must not exceed the following design criteria:

Maximum Month Design Flow (MMDF) 5.6 MGD
BOD 5 Influent Loading for Maximum Month 9,760 lbs/day

TSS Influent Loading for Maximum Month 11,710 lbs/day

S4. B. Plans for maintaining adequate capacity

a. Conditions triggering plan submittal

The Permittee must submit a plan and a schedule for continuing to maintain capacity to Ecology when:

1. The actual flow or waste load reaches 85 percent of any one of the design
criteria in S4.A for three consecutive months Or;

2. The projected plant flow or loading would reach design capacity within five years.

b. Plan and schedule content

The plan and schedule must identify the actions necessary to maintain adequate capacity for the expected population growth and to meet the limits and requirements of the permit. The Permittee must consider the following topics and actions in its plan.

1. Analysis of the present design and prop osed process modifications

2. Reduction or elimination of excessive infiltration and inflow of uncontaminated ground and surface water into the sewer system

3. Limits on future sewer extensions or connections or additional waste loads

4. Modification or expansion o f facilities

5. Reduction of industrial or commercial flows or waste loads

Engineering documents associated with the plan must meet the requirements
of chapter 173

- 240

- 060 WAC , "Engineering Report," and be approved by Ecology prior to any construction.Page 16 of 44
Permit No. WA0 023451

S4. C. Duty to mitigate

The Permittee must take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit that has a reasonable likelihood of adversely affecting human health or the environment.

S4. D. Notific ation of new or altered sources

1. The Permittee must submit written notice to Ecology whenever any new discharge or a substantial change in volume or character of an existing discharge into the wastewater treatment plant is proposed which:

a. Would interfere wi th the operation of, or exceed the design capacity of, any portion of the wastewater treatment plant

.
b. Is not part of an approved general sewer plan or approved plans and specifications

.

c. Is subject to pretreatment standards under 40 CFR Part 403 and Section 307(b)
of the Clean Water Act.

2. This notice must include an evaluation of the wastewater treatment plant’s ability to adequately transport and treat the added flow and/or waste load, the quality and volume of effluent to be discharged to the treatment plant , and the anticipated impact on the Permittee’s effluent [40 CFR 122.42(b)].

S4. E. Infiltration and inflow evaluation

1. The Permittee must conduct an infiltration and inflow evaluation. Refer to the U.S. EPA publication, I/I Analysis and Project Cert ification, available as Ecology Publication No. 97

- 03 at: http://www.ecy.wa.gov/programs/wq/permits/guidance.html

2. The Permittee may use monitoring records to assess measurable infiltrat ion
and inflow.

3. The Permittee must prepare a report summarizing any measurable infiltration and inflow. If infiltration and inflow have increased by more than 15 percent from that found in the previous report based on equivalent rainfall, the report

must contain a plan and a schedule to locate the sources of infiltration and inflow and to correct the problem.

4. The Permittee must submit a report summarizing the results of the evaluation and any recommendations for corrective actions by April 3 0 , 2016

.

S5. Operation and maintenance

The Permittee must at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) , which are installed to achieve compliance with the terms and conditions of this permit. Proper operation and maintenance also includes keeping a daily operation logbook (paper or electronic), adequate laboratory controls, and appropriate quality assurance procedures. This provision of the permit requires the Permittee to operate backup or auxiliary facilities or similar systems only when the operation is necessary to achieve compliance with the conditions of this permit.Page 17 of 44
Permit No. WA0 023451

S5. A. Certified operator

This permitted facility must be operated by an operator certified by the state of Washington for at least a Class III plant. This operator must be in responsible charge of the day

- to

- day operation of the wastewater treatment plant. An operator certified for at
least a Class II plant must be in charge during all regularly scheduled shifts.

S5. B. O pe ration and maintenance program

The Permittee must:

1. Institute an adequate operation and maintenance program for the entire sewage
system.

2. Keep maintenance records on all major electrical and mechanical components of the treatment plant, as well as the sew age system and pumping stations. Such records must clearly specify the frequency and type of maintenance recommended by the manufacturer and must show the frequency and type of maintenance performed.

3. Make maintenance records available for inspection at all times.

S5.C. S hort

- term reduction

The Permittee must schedule any facility maintenance, which might require interruption of wastewater treatment and degrade effluent quality, during non

- critical water quality periods and carry this maintenance out in a manner approved by Ecology.

If a Permittee contemplates a reduction in the level of treatment that would cause a violation of permit discharge limits on a short

- term basis for any reason, and such reduction cannot be avoided, the Permittee must:

1. Give written notification to Ecology, if possible, thirty (30) days prior to such
activities.

2. Detail the reasons for, length of time of, and the potential effects of the reduced
level of treatment.

This notification does not relieve the Permittee of its obligations under this permit.

S5. D. Electrical power failure

The Permittee must ensure that adequate safeguards prevent the discharge of untreated wastes or wastes not treated in accordance with the requirements of this permit during electrical power fai lure at the treatment plant and/or sewage lift stations. Adequate safeguards include, but are not limited to

, alternate power sources, standby generator(s), or retention of inadequately treated wastes.

The Permittee must maintain Reliability Class II (E PA 430

- 9 9

- 74

- 001) at the wastewater treatment plant

. Reliability Class II requires a backup power source sufficient to operate all vital components and critical lighting and ventilation during peak wastewater flow conditions. Vital components used to sup port the secondary processes (i.e., mechanical aerators or aeration basin air compressors) need not be operable to full levels of treatment, but must be sufficient to maintain the biota.Page 18 of 44
Permit No. WA0 023451

S5. E. Prevent connection of inflow

The Permittee must strictly enforc e its sewer ordinances and not allow the connection of inflow (roof drains, foundation drains, etc.) to the sanitary sewer system.

S5. F. Bypass procedures

This permit prohibits a bypass

, which is the intentional diversion of waste streams from any portion of a treatment facility. Ecology may take enforcement action against a Permittee for a bypass unless one of the following circumstances (1, 2, or 3) applies.

1. B ypass for essential maintenance without the potential to cause violation of permit limits or con ditions

. This permit authorizes a b ypass if it allows for essential maintenance and does not have the potential to cause violations of limits or other conditions of this permit, or adversely impact public health as determined by Ecology prior to the bypass. The Permittee must submit prior notice, if possible, at least ten (10) days before the date of the bypass.

2. B ypass which is unavoidable, unanticipated, and results in noncompliance of this permit

.
This permit authorizes such a bypass only if :

a. Bypas s is unavoidable to prevent loss of life, personal injury, or severe property damage. “Severe property damage” means substantial physical damage to property, damage to the treatment facilities which would cause them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass.

b. No feasible alternatives to the bypass exist, such as:

 The use of auxiliary treatment facilities.

 Retention of untreated wastes.

 Maintenance during normal periods of equipment downtime, but not if the Permittee should have installed adequate backup equipment in the exercise of reasonable engineering judgment to prevent a bypass.

 Transport of untreated wastes to another treatment fa cility or preventative maintenance), or transport of untreated wastes to another treatment facility.

c. Ecology is properly notified of the bypass as required in Special C ondition

S3

. E of this permit.

3. If bypass is anticipated and has the potential to result i n noncompliance of this permit.

a. The Permittee must notify Ecology at least thirty (30) days before the planned date of bypass. The notice must contain:

 A description of the bypass and its cause.

 An analysis of all known alternatives which would elimina te, reduce, or mitigate the need for bypassing.Page 19 of 44
Permit No. WA0 023451

 A cost

- effectiveness analysis of alternatives including comparative resource damage assessment.

 The minimum and maximum duration of bypass under each alternative.

 A recommendation as to the preferred altern ative for conducting the bypass.

 The projected date of bypass initiation.

 A statement of compliance with SEPA.

 A request for modification of water quality standards as provided for
in WAC 173

- 201A

- 410, if an exceedance of any water quality
standard is a nticipated.

 Details of the steps taken or planned to reduce, eliminate, and prevent reoccurrence of the bypass.

b. For probable construction bypasses, the Permittee must notify Ecology of the need to bypass as early in the planning process as possible. The Permittee must consider the analysis required above during preparation of the engineering report or facilities plan and plans and specifications and must include these to the extent practical. In cases where the Permittee determines the probable need to b ypass early, the Permittee must continue to analyze conditions up to and including the construction period in an effort to minimize or eliminate the bypass.

c. Ecology will consider the following prior to issuing an administrative order for this type of bypas s:

 If the bypass is necessary to perform construction or maintenance

- related activities essential to meet the requirements of this permit.

 If feasible alternatives to bypass exist, such as the use of auxiliary treatment facilities, retention of untreated wastes, stopping production, maintenance during normal periods of equipment down time, or transport of untreated wastes to another treatment facility.

 If the Permittee planned and scheduled the bypass to minimize adverse effects on the public and the environment.

After consideration of the above and the adverse effects of the proposed bypass and any other relevant factors, Ecology will approve or deny the request. Ecology will give the public an opportunity to comment on bypass incidents of significan t duration, to the extent feasible. Ecology will approve a request to bypass by issuing
an administrative order under RCW 90.48.120.

S5. G. O perations and maintenance ( O&M) manual

a. O&M manual submittal and requirements

The Permittee must:

1. Update the Ope rations and Maintenance (O&M) Manual that meets the requirements of chapter 173

- 240

- 080 WAC and submit it to Ecology for approval by Ju ne 30 , 2015

. The Permittee must submit a paper copy and an electronic copy ( preferably as a PDF ).Page 20 of 44
Permit No. WA0 023451

2. Review the O&M Manual once per permit cycle after the first submittal and confirm this review by letter to Ecology by Ju ne 30 , 2017

.
3. Submit to Ecology for review and approval substantial changes or updates to the O&M Manual whenever it incorporates them into the manual. The Permittee must submit a paper copy and an electronic copy ( preferably as

a PDF ).

4. Keep the approved O&M Manual at the permitted facility.

5. Follow the instructions and procedures of this manual.

b. O&M manual components

In addition to the requirements of WAC 173

- 240

- 080 (1) through (5), the
O&M Manual must include:

1. Emergency procedures for cleanup in the event of wastewater system upset or failure.

2. A review of system components which if failed could pollute surface water or could impact human health. Provide a procedure for a routine schedule of checking the function of the se components

.
3. Wastewater system maintenance procedures that contribute to the generation of process wastewater.

4. Reporting protocols for submitting reports to Ecology to comply with the

repo rting requirements in the discharge permit.

5. Any directions to maintenance staff when cleaning or maintaining other equipment or performing other tasks which are necessary to protect the operation of the wastewater system (for example, defining maximum
allo wable discharge rate for draining a tank, blocking all floor drains before beginning the overhaul of a stationary engine).

6. The treatment plant process control monitoring schedule.

7. Minimum staffing adequate to operate and maintain the treatment

processes and carry out compliance monitoring required by the permit.

8. Specify other items on case

- by

- case basis such as O&M for collection
system s pump stations, lagoon liners, etc.

S6. Pretreatment

S6. A. General requirements

The Permittee must work with Ecology to ensure that all commercial and industrial users of the publicly owned treatment works (POTW) comply with the pretreatment regulations in 40 CFR Part 403 and any additional regulations that the Environmental Protection Agency (U.S. EPA) may promulgate under Section 307(b) (pretreatment) and 308 (reporting) of the Federal Clean Water Act.Page 21 of 44
Permit No. WA0 023451

S6.B. Duty to enforce discharge prohibitions

1. Under federal regulations ( 40 CFR 403.5(a) and (b) ) , the Permittee must not authorize or knowingly allow the discharge of any po llutants into its POTW which may be reasonably expected to cause pass through or interference, or which otherwise violate general or specific discharge prohibitions contained
in 40 CFR Part 403.5 or WAC

- 173

- 216

- 060.

2. The Permittee must not authorize or know ingly allow the introduction of any of the following into their treatment works:

a. Pollutants which create a fire or explosion hazard in the POTW (including, but not limited to waste streams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21).

b. Pollutants which will cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, or greater than 11.0 standard units, unless the works are spec ifically designed to accommodate such discharges.

c. Solid or viscous pollutants in amounts that could cause obstruction to the flow in sewers or otherwise interfere with the operation of the POTW.

d. Any pollutant, including oxygen

- demanding pollutants, (BOD 5 , etc.) released in a discharge at a flow rate and/or pollutant concentration which
will cause interference with the POTW.

e. Petroleum oil, non

- biodegradable cutting oil, or products of mineral origin in amounts that will cause interference or pass through.

f. P ollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity which may cause acute worker health and safety problems.

g. Heat in amounts that will inhibit biological activity in the POTW resulting
in interference but i n no case heat in such quantities such that the temperature at the POTW headworks exceeds 40 degrees Centigrade (104 degrees Fahrenheit) unless Ecology, upon request of the Permittee, approves, in writing, alternate temperature limits.

h. Any trucked or haule d pollutants, except at discharge points designated by
the Permittee.

i. Wastewaters prohibited to be discharged to the POTW by the Dangerous Waste Regulations (chapter 173

- 303 WAC), unless authorized under the Domestic Sewage Exclusion (WAC 173

- 303

- 071).

3. The Permittee must also not allow the following discharges to the POTW unless approved in writing by Ecology:

a. Noncontact cooling water in significant volumes.

b. Stormwater and other direct inflow sources.Page 22 of 44
Permit No. WA0 023451

c. Wastewaters significantly affecting system hydraulic loading, which do not require treatment, or would not be afforded a significant degree of treatment by the system.

4. The Permittee must notify Ecology if any industrial user violates the prohibitions liste d in this section (S6.B), and initiate enforcement action to promptly curtail any such discharge.

S6. C. Wastewater discharge permit required

The Permittee must

1. Establish a process for authorizing non

- domestic wastewater discharges that ensures all SIUs in all tributary areas meet the applicable state waste discharge permit (SWDP) requirements in accordance with chapter 90.48 RCW and chapter 173

- 216 WAC

.
2. I mmediately notify Ecology of any proposed discharge of wastewater from a

source , which may be a s ignificant i ndustrial u ser ( SIU ) [see fact sheet
defini tions or refer to 40 CFR 403.3(v )(i)(ii)]

.
3. R equire all SIUs to obtain a SWDP from Ecology prior to accepting their non

d omestic wastewater, or require proof that Ecology has determined they do not require a permit.

4. R equire the documentation as described in S6.C

. 3 at the earliest practicable date as a condition of continuing to accept non

- domestic wastewater discharges fr om a previously und iscover ed, currently discharging and unpermitted SIU

.
5. R equire sources of non

- domestic wastewater

, which do not qualify as SIUs but merit a degree of oversight, to apply for a SWDP and provide it a copy of
the application and any Ecology responses.

6. Keep all records documenting that its users have met the require ments of

S6. C

.
S6. D. Identification and reporting of existing, new, and proposed industrial users

1. The Permittee must take continuous, routine measures t o identify all existing, new, and proposed SIUs and potential significant industrial users (PSIUs) discharging or proposing to discharge to the Permittee's sewer system (see Appendix C of the fact sheet for definitions).

2. Within 30 days of becoming aware of an unpermitted existing, new, or proposed industrial user who may be a significant industrial user ( SIU ) , the Permittee must notify such user by registered mail that, if classified as an SIU, they must apply to Ecology and obtain a State Waste Discharge Permit. The Permittee must send a copy of this notification letter to Ecology within this

same 30

- day period.Page 23 of 44
Permit No. WA0 023451

3. The Permittee must also notify all Potential SIUs (PSIUs), as they are identified, that if their classification should change to an SIU, they mu st apply to Ecology for a State Waste Discharge Permit within 30 days of such change.

S7. Solid wastes

S7. A. Solid waste handling

The Permittee must handle and dispose of all solid waste material in such a manner as to prevent its entry into state ground o r surface water.

S7. B. Leachate

The Permittee must not allow leachate from its solid waste material to enter state waters without providing all known, available

, and reasonable methods of treatment,
nor allow such leachate to cause violations of the State Surface Water Quality Standards, Chapter 173

- 201A WAC, or the State Ground Water Quality Standards, Chapter 173

- 200 WAC. The Permittee must apply for a permit or permit modification as may be required for such discharges to state ground or surface waters.

S8. Application for permit renewal or modification for facility changes

The Permittee must submit an application for renewal of this permit by September 3 0 , 2017

. The Permittee must submit a paper copy and an electronic copy ( preferably as a PDF ).

The Permittee must also submit a new application or supplement at least one hundred eighty (180) days prior to commencement of discharges, resulting from the activities listed below, which may result in permit violations. Thes e activities include any facility expansions, production increases, or other planned changes, such as process modifications, in the permitted facility.

S 9

. Sediment monitoring

S 9

. A. Sediment sampling and analysis plan

The Permittee must submit to Ecology for review and approval a sediment sampling and analysis plan for sediment monitoring by March 31, 2015

. The Permittee must submit two paper copies and an electronic copy ( preferably as a PDF ). The purpose of the plan i s

to re

- characterize sediment (the nature and extent of chemical contamination and biological toxicity) quality in the vicinity of the Permittee’s discharge location. The Permittee must follow the guidance provided in the Sediment Source Control Standards
User Manual , Appendix B: sediment sampling and a nalysis plan (Ecology, 2008).

S 9

. B. Sediment data report

Following Ecology approval of the Sediment Sampling and Analysis Plan, the
Permittee must collect sediments between August 1 5, 2016 and Septembe r 15, 2016. The Permittee must submit to Ecology a Sediment Data Report containing the results of the sediment sampling and analysis no later than March 31 , 201 7

. The Permittee must
submit two paper copies and an electronic copy ( preferably as a PDF ). The sediment data report must conform to the approved sediment sampling and analysis plan

.Page 24 of 44
Permit No. WA0 023451

In addition to a Sediment Data Report, the sediment chemical and biological data must be submitted to Ecology’s EIM database ( http://www.ecy.wa.gov/eim / ). Ecology’s MyEIM tools must be used to confirm the accuracy of the submitted data ( http://www.ecy.wa.gov/eim/MyEIM.htm ).

S 10

. Acute toxicity

S 10

. A. Effluent characterization

The Permittee must:

1. Conduct quarterly acute toxicity testing on the final effluent for one year starting in
the 4 th q uarter 2013 (October

- December). Quarters means January through March, Ap ril through June, July through September, and October through December.

2. Submit a quarterly written report to Ecology for one year within 45 days of sampling and starting no later than January 30, 2014. Subsequent reports are due

on April 30, 2014, July 30 , 2014, and October 30, 2014. Further instructions on testing conditions and test report content are in Section S10. G below

.
3. Use a dilution series consisting of a minimum of five concentrations and a
control. The five concentrations should include the A CEC of 1.27 % effluent.

4. Conduct the following two acute toxicity te sts on each sample:

Acute Toxicity Tests Species Method
Fathead minnow 96

- hour
static

- renewal test Pimephales promelas EPA

- 821

- R

- 02

- 012

Daphnid 48

- hour static test Ceriodaphnia dubia , Daphnia pulex, or Daphnia magna EPA

- 821

- R

- 02

- 012

5. The effluent limit for acute toxicity listed in Section S10. B below applies if after one year of effluent characterization:

 The median survival of any species in 100% effluent is below 80%.

 Any one test o f any species exhibits less than 65% survival in 100% effluent.

If the effluent limit applies, then the Permittee must immediately follow the
instructions in Sections S10. B, S10. C, S10. D, S10. E, and S10. G. If the effluent limit does not apply, then the Pe rmittee must follow the instructions in Sections

S10. F and S10. G.

S 10 .B. Effluent limit for acute toxicity

The effluent limit for acute toxicity is:

No acute toxicity detected in a test concentration representing the acute critical effluent concentration (ACEC).

The ACEC means the maximum concentration of effluent during critical conditions at the boundary of the acute mixing zone, defined in Section S 1 .B of this permit. The ACEC equals 1.27 % effluent.Page 25 of 44
Permit No. WA0 023451

S 10

. C. Compliance w ith the effluent limit for acute toxicity

Compliance with the effluent limit for acute toxicity means the results of the testing specified in Section S10. D show no statistically significant difference in
survival between the control and th e ACEC.

If the test results show a statistically significant difference in survival between the control and the ACEC, the test does not comply with the effluent limit for acute toxicity. The Permittee must then immediately conduct the additional testing
described in Section S10. E. The Permittee will comply with the requirements of this section by meeting the requirements of Section S10. E.

The Permittee must determine the statistical significance by conducting a hypothesis test at the 0.05 level of significance (A ppendix H, EPA/600/4

- 89/001). If the difference in survival between the control and the ACEC is less than 10%, the Permittee must conduct the hypothesis test at the 0.01 level of significance.

S 10

. D. Compliance testing for acute toxicity

The Permittee must:

1. Perform the acute toxicity tests with 100% effluent, the ACEC, and a control,
or with a full dilution series.

2. Conduct quarterly acute toxicity testing on the final effluent if characterization
determines that the effluent limit for acut e toxicity applies. Testing must begin by 4 th quarter 2014 . Quarters means January through March, April through June, July through September, and October through December

.
3. Submit a quarterly written report to Ecology within 45 days of sampling and starting no later than January 30, 201 5

. Each subsequent report is due on April 30 th , July 30 th , October 30 th

, and January 30 th of each year . Further
instru ctions on testing condi tions and test report content are in Section S10

. G
below.

4. The Permittee must perform compliance tests using each of the species and protocols listed below on a rotating basis:

Acute Toxicity Tests Species Method
Fathead minnow 96

- hour
static

- renewal test Pimephales promelas EPA

- 821

- R

- 02

- 012

Daphnid 48

- hour static test Ceriodaphnia dubia, Daphnia pulex, or Daphnia magna EPA

- 821

- R

- 02

- 012

S 10 .E. Response to noncompliance with the effluent limit for acute toxicity

If a toxicity test conducted under Section S10. D determines a statistically significant difference in response between the ACEC and the control, using the
statistical test described in Section S10. C, the Permittee must begin additional testing within one w eek from the time of receiving the test results. The Permittee

must:Page 26 of 44
Permit No. WA0 023451

1. Conduct one additional test each week for four consecutive weeks, using the same test and species as the failed compliance test.

2. Test at least five effluent concentrations and a control to determine appropriate point estimates. One of these effluent concentrations must equal the ACEC. The results of the test at the ACEC will determine compliance with the effluent limit for acute toxicity as described in Section S10. C.

3. Return to the or iginal monitoring frequency in Section S10. D after completion of the additional compliance monitoring.

Anomalous test results: If a toxicity test conducted under Section S10. D indicates noncompliance with the acute toxicity limit and the Permittee believe s that the test result is anomalous, the Permittee may notify Ecology that the compliance test result may be anomalous. The Permittee may take one additional sample for toxicity testing and wait for notification from Ecology before completing the additiona l testing. The Permittee must submit the notification with the report of the compliance test result and identify the reason for considering the compliance test result to be anomalous.

If Ecology determines that the test result was not anomalous, the Per mittee must complete all of the additional monitoring required in this section . Or,

If the one additional sample fails to comply with the effluent limit for acute toxicity, then the Permittee must complete all of the additional monitoring required in this section . Or,

If Ecology determines that the test result was anomalous, the one addi tional test result will replace the anomalous test result.

If all of the additional testing in this section complies with the permit limit, the Permittee must submit a report to Ecology on possible causes and preventive measures for the transient toxicity event, which triggered the additional compliance monitoring. This report must include a search of all pertinent and recent facility records, including:

 Operating records

 Monitoring results

 Inspection records

 Spill reports

 Weather records

 Production record s

 Raw material purchases

 Pretreatment records, etc.

If the additional testing in this section shows another violation of the acute toxicity limit, the Permittee must submit a Toxicity Identification/Reduction Evaluation (TI/RE) plan to Ecology within sixty (60) days after the sample date (WAC 173

- 205

- 100(2)).Page 27 of 44
Permit No. WA0 023451

S 10

. F

. Testing when there is no permit limit for acute toxicity (if the characterization testing in S10.A shows no acute toxicity)

The Permittee must:

1. Conduct acute tox icity testing on final effluent during the 3 rd quarter 2016 (July

- September) and 1 st quarter 2017 (January

- March) prior to submission of the application for permit renewal.

2. Submit the results to Ecology by October 30, 2016, and April 30, 2017

, respective ly

.
3. Conduct acute toxicity testing on a series of at least five concentrations of effluent, including 100% effluent and a control.

4. Use each of the following species and protocols for each acute toxicity test:

Acute Toxicity Tests Species M ethod
Fathead minnow 96

- hour
static

- renewal test Pimephales promelas EPA

- 821

- R

- 02

- 012

Daphnid 48

- hour static test Ceriodaphnia dubia, Daphnia pulex, or Daphnia magna EPA

- 821

- R

- 02

- 012

S 10

. G

. Sampling and reporting requirements

1. The Permittee must submit all reports for toxicity testing in accordance with the most recent version of Ecology Publication No. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria . Reports must
contain bench sheets and reference toxicant results for test methods. If the lab provides the toxicity test data in electronic format for entry into Ecology’s database, then the Permittee must send the data to Ecology along with the test report, bench sheets, and reference toxica nt results.

2. The Permittee must collect 24

- hour composite effluent samples for toxicity testing. The Permittee must cool the samples to 0

- 6 degrees Celsius during collection and send them to the lab immediately upon completion. The lab must begin the to xicity testing as soon as possible but no later than 36 hours after sampling was completed.

3. The laboratory must conduct water quality measurements on all samples and test solutions for toxicity testing, as specified in the most recent version of Ecology Pu blication No. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria

.
4. All toxicity tests must meet quality assurance criteria and test conditions specified in the most recent versions of the EPA methods listed in Subs ection
C and the Ecology Publication No. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria . If Ecology determines any test results to be invalid or anomalous, the Permittee must repeat the testing with freshly collected effluent.Page 28 of 44
Permit No. WA0 023451

5. The lab oratory must use control water and dilution water meeting the requirements
of the EPA methods listed in Section A or pristine natural water of sufficient quality for good control performance.

6. The Permittee must conduct whole effluent toxicity tests on an unmodified sample of final effluent.

7. The Permittee may choose to conduct a full dilution series test during compliance testing in order to determine dose response. In this case, the series must have a
minimum of five effluent concentrations and a control. The series of concentrations must include the acute critical effluent concentration (ACEC). The ACEC equals

1.27 % effluent.

8. All whole effluent toxicity tests, effluent screening tests, and rapid screening tests that involve hypothesis testing must compl y with the acute statistical power
standard of 29% as defined in WAC 173

- 205

- 020. If the test does not meet the power standard, the Permittee must repeat the test on a fresh sample with an increased number of replicates to increase the power.

S 11

. Chronic toxicity

S 11

. A

. Testing when there is no permit limit for chronic toxicity

The Permittee must:

1. Conduct chronic toxicity testing on final effluent 4 th quarter 2016 (October

December) and during the 2 nd quarter 2017 (April

- June) prior to submission of the application for permit renewal.

2. Submit the results to Ecology by January 30, 2017, and July 30, 2017

, respectively

.
3. Conduct chronic toxicity testing on a series of at least five concentrations of
effluent and a control. This se ries of dilutions must include the acute critical effluent concentration (ACEC). The ACEC equals 1.27 % effluent. The series
of dilutions should also contain the CCEC of 0.55 % effluent.

4. Compare the ACEC to the control using hypothesis testing at the 0.05 level of significance as described in Appendix H, EPA/600/4

- 89/001.

5. Perform chronic toxicity tests with all of the following species and the most recent version of the following protocols:

Saltwater Chronic Test Species Method Topsmelt survival and growth Atherinops affinis EPA/600/R

- 95/136 Mysid shrimp survival and growth Americamysis bahia (formerly Mysidopsis bahia ) EPA

- 821

- R

- 02

- 014

S 11

. B

. Sampling and reporting requirements

1. The Permittee must submit all reports for toxicity testing in accordance with the most recent version of Ecology Publication No. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria . Reports must
contain bench sheets and refere nce toxicant results for test methods. If the labPage 29 of 44
Permit No. WA0 023451

provides the toxicity test data in electronic format for entry into Ecology’s database, then the Permittee must send the data to Ecology along with the test report, bench sheets, and reference toxicant res ults.

2. The Permittee must collect 24

- hour composite effluent samples for toxicity testing. The Permittee must cool the samples to 0

- 6 degrees Celsius during collection and send them to the lab immediately upon completion. The lab must begin the toxicity testing as soon as possible but no later than 36 hours after sampl ing was completed.

3. The laboratory must conduct water quality measurements on all samples and test solutions for toxicity testing, as specified in the most recent version of Ecology Publication No. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria

.
4. All toxicity tests must meet quality assurance criteria and test conditions specified in the most recent versions of the EPA methods listed in Section C and the Ecology Publication no. WQ

- R

- 95

- 80, Laboratory Guidance and Whole Efflue nt Toxicity Test Review Criteria . If Ecology determines any test results to be invalid or anomalous, the Permittee must repeat the testing with freshly collected effluent.

5. The laboratory must use control water and dilution water meeting the requirements o f the EPA methods listed in S ubs ection C or pristine natural water of sufficient quality for good control performance.

6. The Permittee must conduct whole effluent toxicity tests on an unmodified sample of final effluent.

7. The Permittee may choose to conduct a full dilution series test during compliance testing in order to determine dose response. In this case, the
series must have a minimum of five effluent concentrations and a control.
The series of concentrations must i nclude the CCEC and the ACEC. The CCEC and the ACEC may either substitute for the effluent concentrations that
are closest to them in the dilution series or be extra effluent concentrations.
The A CEC equals 1.27 % effluent. The C CEC equals 0.55 % effluent

.
8. All whole effluent toxicity tests that involve hypothesis testing must comply with the chronic statistical power standard of 39% as defined in chapter

173

- 205

- 020 WAC

. If the test does not meet the power standard, the Permittee must repeat the test on a fresh sample with an increased number of replicates to increase the power.Page 30 of 44
Permit No. WA0 023451



### General Conditions

G1. Signatory requirements

1. All applications, reports, or information submitted to Ecology must be signed and
certified.

a. In the case of corporations, by a respon sible corporate officer. For the purpose of this section, a responsible corporate officer means:

 A president, secretary, treasurer, or vice

- president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or

 The manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facilit y including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long

- term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.

 In the case of a partnership, by a general partner.

 In the case of sole proprietorship, by the proprietor.

 In the case of a municipal, state, or other public facility, by either a principal executive officer or ranking elected offici al.

Applications for permits for domestic wastewater facilities that are either owned or operated by, or under contract to, a public entity shall be submitted by the public entity.

2. All reports required by this permit and other information requested by Ecol ogy must be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if:

a. The authorization is made in writing by a person described above and submitted to Ecology.

b. The auth orization specifies either an individual or a position having responsibility for the overall operation of the regulated facility, such as the position of plant manager, superintendent, position of equivalent responsibility, or an individual or position hav ing overall responsibility for environmental matters. (A duly authorized representative may thus be either a named individual or any individual occupying a named position.)Page 31 of 44
Permit No. WA0 023451

3. Changes to authorization. If an authorization under paragraph G1 .2, above, is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph G1 .2, above, must be submitted to Ecology prior to or tog ether with any reports, information, or applications to be signed by an authorized representative.

4. Certification. Any person signing a document under this section must make the following certification:

“I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false informatio n, including the possibility of fine and imprisonment for knowing violations.”

G2. Right o f inspection a nd entry

The Permittee must allow an authorized representative of Ecology, upon the presentation of credentials and such other documents as may be requi red by law:

1. To enter upon the premises where a discharge is located or where any records must be kept under the terms and conditions of this permit.

2. To have access to and copy, at reasonable times and at reasonable cost, any records required to be kept und er the terms and conditions of this permit.

3. To inspect, at reasonable times, any facilities, equipment (including monitoring and control equipment), practices, methods, or operations regulated or required under this permit

.
4. T o sample or monitor, at reasona ble times, any substances or parameters at any location for purposes of assuring permit compliance or as otherwise authorized by the
Clean Water Act.

G3. Permit actions

This permit may be modified, revoked and reissued, or terminated either at the request of any interested person (including the Permittee) or upon Ecology’s initiative. However, the permit may only be modified, revoked and reissued, or terminated for the reasons specified in 40 CFR 122.62, 40 CFR 122.64 or WAC 173

- 220

- 150 according to the

pr ocedures of 40 CFR 124.5.

1. The following are causes for terminating this permit during its term, or for denying a permit renewal application:

a. Violation of any permit term or condition.

b. Obtaining a permit by misrepresentation or failure to disclose all rel evant facts.

c. A material change in quantity or type of waste disposal.Page 32 of 44
Permit No. WA0 023451

d. A determination that the permitted activity endangers human health or the environment, or contributes to water quality standards violations and can only be regulated to acceptable levels by permit modification or termination.

e. A change in any condition that requires either a temporary or permanent reduction, or elimination of any discharge or sludge use or disposal practice controlled by the permit.

f. Nonpayment of fees assessed pursuant to RCW 90.48.465.

g. Failure or refusal of the Permittee to allow entry as required in RCW 90.48.090.

2. The following are causes for modification but not revocation and reissuance except when the Permittee requests or agrees:

a. A material change in the condition of the waters of the state.

b. New information not available at the time of permit issuance that would have justified the application of different permit conditions.

c. Material and substantial alterations or additions to the permitted facility or
activities which occurred after this permit issuance.

d. Promulgation of new or amended standards or regulations having a direct bearing upon permit conditions, or requiring permit revision.

e. The Permittee has requested a modification based on other rationale meeting the
criteria of 40 CFR Part 122.62.

f. Ecology has determined that good cause exists for modification of a compliance schedule, and the modification will not violate statutory deadlines.

g. Incorporation of an approved local pretreatment program into a municipality’ s permit.

3. The following are causes for modification or alternatively revocation and reissuance:

a. When cause exists for ter mination for reasons listed in 1 .a through 1. g of this section, and Ecology determines that modification or revocation and reissuance i s appropriate.

b. When Ecology has received notification of a proposed transfer of the permit. A permit may also be modified to reflect a transfer after the effective date of an automatic transfer ( General Condition G 7 ) but will not be revoked and reissued

a fter the effective date of the transfer except upon the request of the new Permittee.

G4. Reporting planned changes

The Permittee must, as soon as possible, but no later than one hundred eighty (180) days prior to the proposed changes, give notice to Ecolo gy of planned physical alterations or additions to the permitted facility, production increases, or process modification which
will result in:Page 33 of 44
Permit No. WA0 023451

1. T he permitted facility being determined to be a new source pursuant to 40 CFR 122.29(b)

2. A significant change in t he nature or an increase in quantity o f pollutants discharged.

3. A significant change in the Permittee’s sludge use or disposal practices. Following such notice, and the submittal of a new application or supplement to the existing application, along with re quired engineering plans and reports, this permit may be modified, or revoked and reissued pursuant to 40 CFR 122.62(a) to specify and limit any pollutants not previously limited. Until such modification is effective, any new or increased discharge in exc ess of permit limits or not specifically authorized by this permit constitutes a violation.

G5. Plan review required

Prior to constructing or modifying any wastewater control facilities, an engineering report and detailed plans and specifications must be s ubmitted to Ecology for approval in accordance with chapter 173

- 240 WAC. Engineering reports, plans, and specifications must be submitted at least one hundred eighty (180) days prior to the planned start of construction unless a shorter time is approved b y Ecology. Facilities must be constructed and operated in accordance with the approved plans.

G6. Compliance w ith other laws a nd statutes

Nothing in this permit excuses the Permittee from compliance with any applicable federal, state, or local statutes, o rdinances, or regulations.

G7. Transfer o f t his permit

In the event of any change in control or ownership of facilities from which the authorized discharge emanate, the Permittee must notify the succeeding owner or controller of the existence of this perm it by letter, a copy of which must be forwarded to Ecology.

1. Transfers by Modification

Except as provided in paragraph ( 2 ) below, this permit may be transferred by the Permittee to a new owner or operator only if this permit has been modified or revoked
and reissued under 40 CFR 122.62(b)(2), or a minor modification made under 40 CFR 122.63(d), to identify the new Permittee and incorporate such other requirements as may be necessary under the Clean Water Act.

2. Automatic Transfers

This permit may be automatica lly transferred to a new Permittee if:

a. The Permittee notifies Ecology at least thirty (30) days in advance of the proposed
transfer date.

b. The notice includes a written agreement between the existing and new Permittees containing a specific date transfer of permit responsibility, coverage, and liability
between them.Page 34 of 44
Permit No. WA0 023451

c. Ecology does not notify the existing Permittee and the proposed new Permittee of its intent to modify or revoke and reissue this permit. A modification u nder this subparagraph may also be minor modification under 40 CFR 122.63. If this notice is not received, the transfer is effective on the date specified in the written
agreement.

G8. Reduced production f or compliance

The Permittee, in order to maintain compliance with its permit, must control production and/or all discharges upon reduction, loss, failure, or bypass of the treatment facility until the facility is restored or an alternative method of treatment is provided. This requirement applies in the situation where, among other things, the primary source of power of the treatment facility is reduced, lost, or fails.

G9. Removed substanc es
Collected screenings, grit, solids, sludges, filter backwash, or other pollutants removed in
the course of treatme nt or control of wastewaters must not be resuspended or reintroduced to the final effluent stream for discharge to state waters.

G10. Duty t o provide information

The Permittee must submit to Ecology, within a reasonable time, all information which Ecology may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. The Permittee must also submit to Ecology upon request, copies of records required to be kept by this permit.

G11. Other requirement s o f 40 C FR

All other requirements of 40 CFR 122.41 and 122.42 are incorporated in this permit by
reference.

G12. Additional monitoring

Ecology may establish specific monitoring requirements in addition to those containe d in this permit by administrative order or permit modification.

G13. Payment o f fees

The Permittee must submit payment of fees associated with this permit as assessed by Ecology.

G14. Penalties f or violating permit conditions

Any person who is found guilt y of willfully violating the terms and conditions of this permit is deemed guilty of a crime, and upon conviction thereof shall be punished by a fine of up to ten thousand dollars ($10,000) and costs of prosecution, or by imprisonment

in the discretion of the court. Each day upon which a willful violation occurs may be deemed a separate and additional violation.Page 35 of 44
Permit No. WA0 023451

Any person who violates the terms and conditions of a waste discharge permit may incur, in addition to any other penalty as provided by law, a ci vil penalty in the amount of up to ten thousand dollars ($10,000) for every such violation. Each and every such violation is a separate and distinct offense, and in case of a continuing violation, every day's continuance is deemed to be a separate and dis tinct violation.

G15. Upset

Definition

– “Upset” means an exceptional incident in which there is unintentional and temporary noncompliance with technology

- based permit effluent limits because of factors beyond the reasonable control of the Permittee. An u pset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.

An upset constitutes an affirmative defense to an action brought for noncompliance with such technology

- based permit effluent limits if the requirements of the following paragraph are met.

A Permittee who wishes to establish the affirmative defense of upset must demonstrate, through properl y signed, contemporaneous operating logs, or other relevant evidence
that:

1. A n upset occurred and that the Permittee can identify the cause(s) of the upset

.
2. T he permitted facility was being properly operated at the time of the upset

.
3. T he Permittee submitted notice of the upset as required in Special Condition S3.E

.
4. T he Permittee complied with any remedial measures required under S3.E of this permit.

In any enforcement action the Permittee seeking to establish the occurrence of an upset has the burden of proof.

G16. Property rights

This permit does not convey any property rights of any sort, or any exclusive privilege.

G17. Duty t o comply

The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application.

G18. Toxic pollutants

The Permittee must comply with effluent standards or prohibi tions established under
Section 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish those standards or prohibitions, even if this permit has not yet been modified to incorporate the requir ement.Page 36 of 44
Permit No. WA0 023451

G19. Penalties f or tampering

The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate any monitoring device or method required to be maintained under this permit shall , upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two (2) years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this condition, punishment shall be a fine of not more than $20,000 per day of violation, or by imprisonment of not more than four (4) years, or by both.

G20. Compliance schedules

Reports of compliance or noncompliance with, or any progress reports on, interim and final requirement s contained in any compliance schedule of this permit must be submitted no later than fourteen (14) days following each schedule date.

G21. Service agreement review

The Permittee must submit to Ecology any proposed service agreements and proposed
revisions or updates to existing agreements for the operation of any wastewater treatment facility covered by this permit. The review is to ensure consistency with chapters 90.46
and 90.48 RCW as required by RCW 70.150.040(9) . In the event t hat Ecology does not comment within a thirty

- day (30) period, the Permittee may assume consistency and proceed with the service agreement or the revised/updated service agreement

.Page 37 of 44
Permit No. WA0 023451



### Appendix A

LIST OF POLLUTANTS WITH ANALYTICAL METHODS,
DETECTION LIMITS AND QUANTITATION LEVE LS

The Permittee must use the specified analytical methods, detection limits (DLs) and quantitation levels (QLs) in the following table for permit and applicat ion required monitoring unless:

 Another permit condition specifies other methods, detection leve ls, or quantitation levels

.

 The method used produces measurable results in the sample and EPA has listed it as an

EPA

- approved method in 40 CFR Part 136.

If the Permittee uses an alternative method, not specified in the permit and as allowed above, it must report the test method, DL, and QL on the discharge monitoring rep ort or in the required report.

If the Permittee is unable to obtain the required DL and QL in its effluent due to matrix effects, the
Permittee must submit a matrix

- specific detection limit (MDL) and a quantitation limit (QL) to Ecology with appropriate laboratory documentation.

When th e permit requires the Permittee to measure the base neutral compounds in the list of priority pollutants, it must measure all of the base neutral pollutants listed in the table below. The list includes EPA required base neutral priority pollutants and sev eral additional polynuclear aromatic hydrocarbons (PAHs)

. The Water Quality Program added several PAHs to the list of base neutrals below from Ecology’s Persistent Bioaccumulative Toxics (PBT) List. It only added those PBT parameters of interest to Append ix A that did not increase the overall cost of analysis unreasonably.

Ecology added this appendix to the permit in order to reduce the number of analytical “non

- detects” in permit

- required monitoring and to measure effluent concentrations near or below cri teria values where possible at a reasonable cost

.

CONVENTIONAL PARAMETERS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level

(QL) 2 μ g/L unless specified Biochemical Oxygen Demand SM 5210

- B 2 mg/L Soluble Biochemical Oxygen
Demand SM5210

- B 3 2 mg/L

Chemical Oxygen Demand SM5220

- D 10 mg/L Total Organic Carbon SM 5310

- B / C / D 1 mg/L Total Suspended Solids SM 2540

- D 5 mg/L Total Ammonia (as N) SM4500

- NH3

- B and C/D/E/G/H 20

Flow Calibrated device Dissolved oxygen SM 4500

- OC /OG 0.2 mg/L Temperature (max. 7

- day avg.) Analog recorder or Use micro

recording devices known as
thermistors 0.2 o C

pH SM4500

- H + B N/A N/APage 38 of 44
Permit No. WA0 023451

NONCONVENTIONAL PARAMETERS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level (QL) 2 μ g/L unless specified Total Alkalinity SM2320

- B 5 mg/L as CaCO3 Chlorine, Total Residual SM 4500 Cl G 5 0.0
Color SM2120 B/C/E 10 color unit s
Fecal Coliform SM 9221E ,9222 N/A Specified in method

- sample aliquot dependent Fluoride (16984

- 48

- 8) SM 4500

- F E 25 100 Nitrate + Nitrite Nitrogen (as N) SM 4500

- NO 3

- E/F/H 100 Nitrogen, Total Kjeldahl (as N) SM4500

- N org B/C and
SM4500NH 3 - B/C/D/EF/G/H 300

Soluble Reactive Phosphorus (as P) SM4500

- PE/PF 3 10 Phosphorus, Total (as P) SM 4500 PB followed by SM4500

- PE/PF 3 10

Oil and Grease (HEM) (Hexane Extractable Material) 1664 A or B 1,400 5,000

Salinity SM2520

- B 3 practical salinity units or
scale (PSU or PSS) Settleable Solids SM2540

- F 5 00 (or 0.1 mL/L) Sulfate (as mg/ L SO 4 ) SM4110

- B 0.2 mg/L Sulfide (as mg/ L S) SM 4500

- S 2 F/D/E/G 0.2 mg/L Sulfite (as mg/ L SO 3 ) SM 4500

- SO3B 2 mg/L

Total Coliform SM 9221B, 9222B,
9223B N/A Specified in method

- sample aliquot dependent

Total dissolved solids SM 2540 C 20 mg/L

Total Hardness SM2340B 200 as CaCO3 Aluminum, Total (7429

- 90

- 5) 200.8 2.0 10 Barium Total (7440

- 39

- 3) 200.8 0.5 2.0 BTEX (benzene +toluene + ethylbenzene + m,o,p xylenes) EPA SW 846
8021/8260 1 2

Boron Total (7440

- 42

- 8) 200.8 2.0 10.0 Cobalt, Total (7440

- 48

- 4) 200.8 0.05 0.25 Iron, Total (7439

- 89

- 6) 200.7 12.5 50 Magnesium, Total (7439

- 95

- 4) 200.7 10 50 Molybdenum, Total (7439

- 98

- 7) 200.8 0.1 0.5 Manganese, Total (7439

- 96

- 5) 200.8 0.1 0.5
NWTPH Dx 4 Ecology NWTPH Dx 250 250
NWTPH Gx 5 Ecology NWTPH Gx 250 250 Tin, Total (7440

- 31

- 5) 200.8 0. 3 1.5 Titanium, Total ( 7440

- 32

- 6 ) 200.8 0.5 2.5Page 39 of 44
Permit No. WA0 023451

PRIORITY POLLUTANTS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level (QL) 2 μ g/L unless specified METALS, CYANIDE & TOTAL PHENOLS Antimony, Total (7440

- 36

- 0) 200.8 0. 3 1.0 Arsenic, Total (7440

- 38

- 2) 200.8 0.1 0.5 Beryllium, Total (7440

- 4 1

- 7 ) 200.8 0.1 0.5 Cadmium, Total (7440

- 43

- 9) 200.8 0.05 0.25 Chromium (hex) dissolved (18540

- 29

- 9) SM3500

- Cr EC 0. 3 1.2

Chromium, Total (7440

- 47

- 3) 200.8 0.2 1.0 Copper, Total (7440

- 50

- 8) 200.8 0.4 2.0 Lead, Total (7439

- 92

- 1) 200.8 0.1 0.5 Mercury, Total (7439

- 97

- 6) 1631E 0.000 2 0.0005 Nickel, Total (7440

- 02

- 0) 200.8 0.1 0.5 Selenium, Total (7782

- 49

- 2) 200.8 1.0 1.0 Silver, Total (7440

- 22

- 4) 200.8 0.04 0.2 Thallium, Total (7440

- 28

- 0) 200.8 0.09 0.36 Zinc, Total (7440

- 66

- 6) 200.8 0.5 2.5 Cyanide, Total ( 57

- 12

- 5 ) 335.4 5 10 Cyanide, Weak Acid Dissociable SM4500

- CN I 5 10 Cyanide, Free Amenable to Chlorination (Available Cyanide) SM4500

- CN G 5 10

Phenols, Total EPA 420.1 50

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level (QL) 2 μ g/L unless specified ACID COMPOUNDS

2

- Chlorophenol (95

- 57

- 8) 625 1.0 2.0 2,4

- Dichlorophenol (120

- 83

- 2) 625 0.5 1.0 2,4

- Dimethylphenol (105

- 67

- 9) 625 0.5 1.0 4,6

- dinitro

- o

- cresol (534

- 52

- 1)
(2

- methyl

- 4,6,

- dinitrophenol) 625/1625B 1.0 2.0

2,4 dinitrophenol (51

- 28

- 5) 625 1.0 2.0

2

- Nitrophenol (88

- 75

- 5) 625 0.5 1.0

4

- nitrophenol (100

- 02

- 7) 625 0.5 1.0
Parachlorometa cresol (59

- 50

- 7) (4

- chloro

- 3

- methylphenol) 625 1.0 2.0

Pentachlorophenol (87

- 86

- 5) 625 0.5 1.0 Phenol (108

- 95

- 2) 625 2.0 4.0 2,4,6

- Trichlorophenol (88

- 06

- 2) 625 2.0 4.0Page 40 of 44
Permit No. WA0 023451

PRIORITY POLLUTANTS (continued)

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level (QL) 2 μ g/L unless specified VOLATILE COMPOUNDS Acrolein (107

- 02

- 8) 624 5 10 Acrylonitrile (107

- 13

- 1) 624 1.0 2.0 Benzene (71

- 43

- 2) 624 1.0 2.0 Bromoform (75

- 25

- 2) 624 1.0 2.0 Carbon tetrachloride ( 56

- 23

- 5 ) 624/601 or SM6230B 1.0 2.0 Chlorobenzene (108

- 90

- 7) 624 1.0 2.0 Chloroethane (75

- 00

- 3) 624/601 1.0 2.0

2

- Chloroethylvinyl Ether (110

- 75

- 8) 624 1.0 2.0

Chloroform (67

- 66

- 3) 624 or SM6210B 1.0 2.0
Dibromochloromethane (124

- 48

- 1) 624 1.0 2.0

1,2

- Dichlorobenzene (95

- 50

- 1) 624 1.9 7.6 1,3

- Dichlorobenzene (541

- 73

- 1) 624 1.9 7.6 1,4

- Dichlorobenzene (106

- 46

- 7) 624 4.4 17.6 Dichlorobromomethane (75

- 27

- 4) 624 1.0 2.0 1,1

- Dichloroethane (75

- 34

- 3) 624 1.0 2.0 1,2

- Dichloroethane (107

- 06

- 2) 624 1.0 2.0 1,1

- Dichloroethylene (75

- 35

- 4) 624 1.0 2.0 1,2

- Dichloropropane (78

- 87

- 5) 624 1.0 2.0 1,3

- dichloropropene (mixed isomers) ( 1,2

- dichloropropylene) (542

- 75

- 6) 6 624 1.0 2.0

Ethylbenzene (100

- 41

- 4) 624 1.0 2.0 Methyl bromide (74

- 83

- 9) ( Bromomethane ) 624/601 5.0 10.0

Methyl chloride (74

- 87

- 3)
(Chloromethane) 624 1.0 2.0

Methylene chloride (75

- 09

- 2) 624 5.0 10.0 1,1,2,2

- Tetrachloroethane (79

- 34

- 5) 624 1.9 2.0

Tetrachloroethylene (127

- 18

- 4) 624 1.0 2.0
To lu ene (108

- 88

- 3) 624 1.0 2.0 1,2

- Trans

- Dichloroethylene (156

- 60

- 5) (Ethylene dichloride) 624 1.0 2.0

1,1,1

- Trichloroethane (71

- 55

- 6) 624 1.0 2.0 1,1,2

- Trichloroethane (79

- 00

- 5) 624 1.0 2.0 Trichloroethylene (79

- 01

- 6) 624 1.0 2.0 Vinyl chloride (75

- 01

- 4) 624/SM6200B 1.0 2.0Page 41 of 44
Permit No. WA0 023451

PRIORITY POLLUTANTS (continued)

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level

(QL) 2 μ g/L unless specified BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs) Acenaphthene (83

- 32

- 9) 625 0.2 0.4 Acenapht h ylene (208

- 96

- 8) 625 0.3 0.6 Anthracene (120

- 12

- 7) 625 0.3 0.6 Benzidine (92

- 87

- 5) 625 12 24 Benzyl butyl phthalate (85

- 68

- 7) 625 0.3 0.6 Benzo( a )anthracene (56

- 55

- 3) 625 0.3 0.6 Benzo(b)fluoranthene ( 3,4

- benzofluoranthene ) (205

- 99

- 2) 7 610/625 0.8 1.6

Benzo(j)fluoranthene (205

- 82

- 3) 7 625 0. 5 1.0 Benzo(k)fluoranthene

(11,12

- benzofluoranthene) (207

- 08

- 9) 7 610/625 0.8 1.6

Benzo(r,s,t)pentaphene (189

- 55

- 9) 625 0.5 1.0

Benzo( a )pyrene (50

- 32

- 8) 610/625 0.5 1.0 Benzo( ghi

)Perylene (191

- 24

- 2) 610/625 0.5 1.0 Bis( 2

- chloroethoxy) methane (111

- 91

- 1) 625 5.3 21.2

Bis( 2

- chloroethyl

)ether (111

- 44

- 4) 611/625 0.3 1.0 Bis( 2

- chloroisopropyl

)ether ( 39638

- 32

- 9 ) 625 0.3 0.6

Bis( 2

- ethylhexyl

)phthalate (117

- 81

- 7) 625 0.1 0.5

4

- Bromophenyl phenyl ether (101

- 55

- 3) 625 0.2 0.4

2

- Chloronaphthalene (91

- 58

- 7) 625 0.3 0.6

4

- Chlorophenyl phenyl ether (7005

- 72

- 3) 625 0.3 0.5

Chrysene (218

- 01

- 9) 610/625 0.3 0.6 Dibenzo (a,h)acridine ( 226

- 36

- 8) 610M/625M 2.5 1 0. 0 Dibenzo (a,j)acridine ( 224

- 42

- 0) 610M/625M 2.5 1 0. 0 Dibenzo(a

- h )anthracene (53

- 70

- 3 ) (1,2,5,6

- dibenzanthracene) 625 0.8 1.6

Dibenzo(a,e)pyrene (192

- 65

- 4) 610M/625M 2.5 10.0 Dibenzo(a,h)pyrene (189

- 64

- 0) 625M 2.5 10.0 3,3

- Dichlorobenzidine (91

- 94

- 1) 605/625 0.5 1.0 Diethyl phthalate (84

- 66

- 2) 625 1.9 7.6 Dimethyl phthalate (131

- 11

- 3) 625 1.6 6.4
Di

- n

- butyl phthalate (84

- 74

- 2) 625 0.5 1.0 2,4

- dinitrotoluene (121

- 14

- 2) 609 /625 0.2 0.4 2,6

- dinitrotoluene (606

- 20

- 2) 609/625 0.2 0.4Page 42 of 44
Permit No. WA0 023451

PRIORITY POLLUTANTS (continued)

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level

(QL) 2 μ g/L unless specified BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs)

Di

- n

- octyl phthalate (117

- 84

- 0) 625 0.3 0.6 1,2

- Diphenylhydrazine ( as
Azobenzene ) (122

- 66

- 7) 1 625 B 5.0 20

Fluoranthene (206

- 44

- 0) 625 0.3 0.6 Fluorene (86

- 73

- 7) 625 0.3 0.6 Hexachlorobenzene (118

- 74

- 1) 612/625 0.3 0.6 Hexachlorobutadiene (87

- 68

- 3) 625 0.5 1.0 Hexachlorocyclopentadiene (77

- 47

- 4) 1625B/625 0.5 1.0

Hexachloroethane (67

- 72

- 1) 625 0.5 1.0 Indeno( 1,2,3

- cd

)Pyrene (193

- 39

- 5) 610/625 0.5 1.0

Isophorone (78

- 59

- 1) 625 0.5 1.0
3

- Methyl cholanthrene (56

- 49

- 5) 625 2.0 8.0 Naphthalene (91

- 20

- 3) 625 0.3 0.6 Nitrobenzene (98

- 95

- 3) 625 0.5 1.0
N

- Nitrosodimethylamine (62

- 75

- 9) 607/625 2.0 4.0
N

- Nitrosodi

- n

- propylamine (621

- 64

- 7) 607/625 0.5 1.0

N

- Nitrosodiphenylamine (86

- 30

- 6) 625 0.5 1.0 Perylene (198

- 55

- 0) 625 1.9 7.6
Phenanthrene (85

- 01

- 8) 625 0.3 0.6 Pyrene (129

- 00

- 0) 625 0.3 0.6 1,2,4

- Trichlorobenzene (120

- 82

- 1) 625 0.3 0.6

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level

(QL) 2 μ g/L unless specified DIOXIN 2,3,7,8

- Tetra

- Chlorodibenzo

- P

Dioxin (176

- 40

- 16 ) ( 2,3,7,8 TCDD) 1613B 1.3 pg/L 5 pg/LPage 43 of 44
Permit No. WA0 023451

PRIORITY POLLUTANTS (continued)

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1

μ g/L unless specified Quantitation Level

(QL) 2 μ g/L unless specified PESTICIDES/PCBs Aldrin (309

- 00

- 2) 608 0.025 0.05 alpha

- BHC (319

- 84

- 6) 608 0.025 0.05
beta

- BHC (319

- 85

- 7) 608 0.025 0.05

gamma

- BHC (58

- 89

- 9) 608 0.025 0.05
delta

- BHC (319

- 86

- 8) 608 0.025 0.05
Chlordane (57

- 74

- 9) 8 608 0.025 0.05 4,4’

- DDT (50

- 29

- 3) 608 0. 025 0.05 4,4’

- DDE (72

- 55

- 9) 608 0.025 0.05 10 4,4’ DDD (72

- 54

- 8) 608 0.025 0.05 Dieldrin (60

- 57

- 1) 608 0.025 0.05 alpha

- Endosulfan (959

- 98

- 8) 608 0.025 0.05
beta

- Endosulfan (33213

- 65

- 9) 608 0.025 0.05 Endosulfan Sulfate (1031

- 07

- 8) 608 0.025 0.05 Endrin (72

- 20

- 8) 608 0.025 0.05 Endrin Aldehyde (7421

- 93

- 4) 608 0.025 0.05 Heptachlor (76

- 44

- 8) 608 0.025 0.05 Heptachlor Epoxide (1024

- 57

- 3) 608 0.025 0.05
PCB

- 1242 (53469

- 21

- 9) 9 608 0.25 0.5
PCB

- 1254 (11097

- 69

- 1) 608 0.25 0.5
PCB

- 1221 (11104

- 28

- 2) 608 0.25 0.5
PCB

- 1232 (11141

- 16

- 5) 608 0.25 0.5
PCB

- 1248 (12672

- 29

- 6) 608 0.25 0.5
PCB

- 1260 (11096

- 82

- 5) 608 0.13 0.5
PCB

- 1016 (12674

- 11

- 2) 9 608 0.13 0.5 Toxaphene (8001

- 35

- 2) 608 0.24 0.5

1. Detection level (DL) or detection limit means the minimum concentration of an analyte (substance) that can be measured and reported with a 99% confidence that the analyte concentration is greater than zero as determined by the procedure given in 40 CFR par t 136, Appendix B.

2. Quantitation Level (QL) also known as Minimum Level of Quantitation (ML)

– The lowest level at which the entire analytical system must give a recognizable signal and acceptable calibration point for the analyte . It is equivalent to the concentration of the lowest calibration standard, assuming that
the lab has used all method

- specified sample weights, volumes, and cleanup procedures. The QL is calculated by multiplying the MDL by 3.18 and rounding the result to the number nearest to (1, 2, or 5) x 10 n , where n is an integer (64 FR 30417).
ALSO GIVEN AS: The smallest detectable concentration of analyte greater than the Detection Limit (DL) where the accuracy (precision & bias) achieves the objectives of the int ended purpose. ( Report of the FederalPage 44 of 44
Permit No. WA0 023451

Advisory Committee on Detection and Quantitation Approaches and Uses in Clean Water Act Programs Submitted to the US Environmental Protection Agency

, December 2007).

3. Soluble Biochemical Oxygen Demand method note: F ir st, f ilter the sample through a Millipore Nylon filter (or equivalent)

- pore size of 0.45

- 0.50 um (prep all filters by filtering 250 ml of laboratory grade deionized water through the filter and discard). Then, analyze sample as per
method 5210

- B.

4. NWTPH Dx - Northwest Total Petroleum Hydrocarbons Diesel Extended Range

– see http://www.ecy.wa.gov/biblio/97602.html

5. NWTPH Gx

- Northwest Total Petroleum Hydrocarbons Gasoline Extended Range

– see http://www.ecy.wa.gov/biblio/97602.html

6. 1, 3

- dichloroproylene (mixed isomers) You may report this parameter as two separate parameters:

c is

- 1, 3

- d ichlorpropropene (10061

- 01

- 5) and t rans

- 1, 3

- d ichloroprop ene (10061

- 02

- 6).

7. Total Benzofluoranthenes

- Because Benzo(b)fluoranthene, Benzo(j)fluoranthene and Benzo(k)fluoranthene co

- elute you may report these three isomers as total b enzofluoranthenes

.

8. Chlordane

– You may report alpha

- chlordane (5103

- 71

- 9) an d gamma

- chlordane (5103

- 74

- 2) in place of c hlordane (57

- 74

- 9). If you report alpha and gamma

- chlordane , the DL/PQLs that apply are
0.025/0.050

.

9. PCB 1016 & PCB 1242

– You may report these two PCB compounds as one parameter called PCB
1016/1242

.