Page 2 of 80
Permit No. WA 00 0295



### Table of Contents

Summary of Permit Report Submittals

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

Special Conditions

................................ ................................ ................................ .......................... 8

S1. Discharge Limits

................................ ................................ ................................ ............... 8

S1.A. Outfall 001 Process Wastewater and Stormwater Discharges

................................ ................ 8
S1.B. Outfall 002 Stormwater Discharges

................................ ................................ ...................... 11
S1.C. Outfall 011 an d Outfall 012 Stormwater Discharges

................................ ............................ 12
S1.D. Discharge Action Levels

................................ ................................ ................................ ....... 12
S1 .E. Mixing Zone Authorization

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

S2. Monitoring Requirements

................................ ................................ .............................. 17

S2.A.1 Monitoring Schedule

................................ ................................ ................................ ............. 17
S2.A.2 Temporary Curtailment Reduced Monitoring Frequencies

................................ .................. 25
S2.B. Sampling and Analytical Procedures

................................ ................................ .................... 26
S2.C. Flow Measurement, Field Measurement, and Continuous Monitoring Devices

................... 27
S2.D. Laboratory Accreditation

................................ ................................ ................................ ...... 28
S2 .E. Request for Reduction in Monitoring

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

S3. Reporting and Recording Requirements

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

S3.A. Reporting

................................ ................................ ................................ ............................... 28
S3.B. Permit Sub mittals and Schedules

................................ ................................ .......................... 30
S3.C Records Retention

................................ ................................ ................................ ................. 30
S3.D. Recording of Results

................................ ................................ ................................ ............. 30
S3.E. Additional Monitoring by the Permittee

................................ ................................ ............... 31
S3.F. Reporting Permit Violations

................................ ................................ ................................ .. 31
S3.G. Other Reporting

................................ ................................ ................................ ..................... 33
S3.H. Main taining a Copy of this Permit

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

S4. Operation and Maintenance

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

S4.A. Operations and Maintenance (O&M) Manual

................................ ................................ ....... 33
S4.B. Bypass Procedures

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

S5. Solid Wastes

................................ ................................ ................................ ..................... 37

S5.A. Solid Waste Handling

................................ ................................ ................................ ........... 37
S5.B. Leachate

................................ ................................ ................................ ................................ 37
S5.C. Solid Waste Control Plan

................................ ................................ ................................ ...... 37

S6. Application for Permit Renewal or Modification for Facility Changes

..................... 37

S7. Facility Loading

................................ ................................ ................................ .............. 38

S7.A. Design Criteria

................................ ................................ ................................ ...................... 38
S7.B. Stormwater Treatment Design Criteria

................................ ................................ ................. 38

S8. Non

- Routine and Unanticipated Discharges

................................ ................................ 38

S9. Spill Control Plan

................................ ................................ ................................ ............ 39

S9.A. Spill Control Plan Submittals and Requirements

................................ ................................ .. 39
S9.B. Spill Control Plan Components

................................ ................................ ............................. 39Page 3 of 80
Permit No. WA 00 0295

S10. Stormwater Pollution Prevention

................................ ................................ .................. 39 S10.A Stormwater Pollution Prevention Plan (SWPPP) Update

................................ ...................... 40
S10.B SWPPP Modifications

................................ ................................ ................................ ........... 41 S10.C SWPPP Implementation

................................ ................................ ................................ ........ 41
S10.D SWPPP Evaluation

................................ ................................ ................................ ................ 42

S11. Fugit ive Alumina Pollution Prevention Plan

................................ ................................ 42

S12. Sediment Monitoring

................................ ................................ ................................ ...... 43

S12.A. Sediment Data Report

................................ ................................ ................................ ........... 43

S13. Outfall Evaluation

................................ ................................ ................................ ........... 43

S14. Cer tified Operator

................................ ................................ ................................ .......... 44

S15. Acute Toxicity

................................ ................................ ................................ .................. 44

S15.A. Outfall 002 Effluent Characterization

................................ ................................ ................... 44
S15.B. Outfall 002 Acute Toxicity

................................ ................................ ................................ ... 45
S15.C. Compliance with the Outfall 002 Effluent Limit for Acute Toxicity

................................ .... 45
S15.D. Compliance Testing for Outfall 002 Acute Toxicity

................................ ............................. 45
S15.E. Response to Noncompliance with the Effluent Limit for Outfall 002 Acute Toxicity

......... 46
S15.F. Testing when there is No Permit Limit for Acute Toxicity

................................ .................. 47
S15.G. Sampling and Reporting Requirements

................................ ................................ ................. 48

S16. Chronic Toxicity

................................ ................................ ................................ .............. 49

S16.A Effluent Characterization

................................ ................................ ................................ ....... 49
S16.B. Effluent Limit for Chronic Toxicity

................................ ................................ ...................... 51
S16.C. Compliance with the Effluent Limit for Chronic Toxicity

................................ .................... 51
S16.D. Compliance Testing for Chronic Toxicity

................................ ................................ ............ 52
S16.E. Response to Noncompliance with the Effluent Limit for Chronic Toxicity

......................... 53
S16.F Testing when there is No Permit Limit for Chronic Toxicity

................................ ............... 54
S16.G. Sampling an d Reporting Requirements

................................ ................................ ................. 55

S17. Secondary Wastewater Treatment System Treatment Efficiency Study

.................. 56 S17.A Secondary Wastewater Treatment System (SEC, formerly SWTS) Efficiency Study Plan

.. 56
S17.B Secondary Wastewater Treatment System Efficiency Study Engineering Report

................ 57

S18. Anode Contact Cooling Water AKART Evaluation

................................ ....................... 57

S19. Ground Water Impact Study

................................ ................................ ............................. 58

S20. Outfall 011 and Outfall 012 BMP Effectiveness Study

................................ ................... 58

General Conditions

................................ ................................ ................................ ...................... 59

G1. Signatory Requirements

................................ ................................ ................................ . 59

G2. Ri ght of Inspection and Entry

................................ ................................ ....................... 61

G3. Permit Actions

................................ ................................ ................................ ................. 61

G4. Reporting Planned Changes

................................ ................................ ........................... 62

G5. Plan Review Required

................................ ................................ ................................ .... 63

G6. Comp liance with other Laws and Statutes

................................ ................................ ... 63

G7. Transfer of this Permit

................................ ................................ ................................ ... 63Page 4 of 80
Permit No. WA 00 0295

G8. Reduced Production for Compliance

................................ ................................ ............ 63

G9. Removed Substances

................................ ................................ ................................ ....... 64

G10. Duty to Provide Information

................................ ................................ .......................... 64

G11. Other Requirements of 40 CFR

................................ ................................ ..................... 64

G12. Additional Monitoring

................................ ................................ ................................ .... 64

G13. P ayment of Fees

................................ ................................ ................................ ............... 64

G14. Penalties for Violating Permit Conditions

................................ ................................ .... 64

G15. Upset

................................ ................................ ................................ ................................ . 64

G16. Property Rights

................................ ................................ ................................ ............... 65

G17. Duty to Comply

................................ ................................ ................................ ............... 65

G18. Toxic Pollutants

................................ ................................ ................................ ............... 65

G19. Penalties for Tampering

................................ ................................ ................................ . 65

G20. Reporting Requirements Applicable to Existing Manufacturing, Commercial, Mining, and Silvicultural Dischargers

................................ ................................ .......... 66

G21. Compliance Schedules

................................ ................................ ................................ .... 66

Appendix A

................................ ................................ ................................ ................................ ... 67Page 5 of 80
Permit No. WA 00 0295



## 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

S1. D .3 Action Level Exceedance Report Semi

- Annually July 15, 2015
S3.A Discharge Monitoring Report Monthly March 15, 2015

S3.A Discharge Monitoring Report Quarterly July 15, 2015
S3.A Discharge Monitoring Report Semi

- Annually July 15, 2015
S3.A Discharge Monitoring Report Annually January 15, 201 6
S3. F Reporting Permit Violations As necessary
S3. G Other Reporting As necessary
S4.A Operations and Maintenance

Manual Update or Review
Confirmation Letter Annually January 31, 2016

S4.A Operations and Maintenance

Manual Modifications As Necessary

S4.A Treatment System Operating

Plan 1/permit cycle August 1, 2019

S4.B Reporting Bypasses As necessary
S5.C Solid Waste Control Plan 1/permit cycle August 1, 2019
S5.C Modification to Solid Waste

Plan As necessary

S6 Application for Permit Renewal 1/permit cycle August 1, 2019
S8 Notice of Non

- Routine and

Unanticipated Discharges As necessary

S 9 Spill Control Plan Update 1/permit cycle February 1, 2016
S9 Spill Control Plan Modification As necessary
S 10.A Stormwater Pollution Prevention

Plan (SWPPP) Update 1/permit cycle August 1, 2015

S10.B SWPPP Modifications As necessary
S 1 1 Fugitive Alumina Pollution

Prevention Plan 1/permit cycle August 1, 2016

S12 .A Sediment Data Report 1/permit cycle

S 13 Outfall Evaluation 1/5 years October 1, 2016

S 15 .A Outfall 002 Acute Toxicity:

Characterization Written Report Quarterly for one year July 30, 2015

S 15 .D Outfall 002 Acute Toxicity:

Compliance Monitoring Reports Quarterly, if required October 30, 2016, if applicable
S 15 .E Outfall 002 Acute Toxicity:

Response to noncompliance reporting As necessaryPage 6 of 80
Permit No. WA 00 0295

Permit
Section Submittal Frequency First Submittal Date

S 15 .F Outfalls 001 and 002 Acute

Toxicity Effluent Test Results Once in last winter prior to application for permit renewal Within 45 days of sampling and no later than May 1, 2019
S15.F Outfalls 001 and 002 Acute

Toxicity Effluent Test Results Once in last summer prior to application for permit renewal Within 45 days of sampling and no later than November 15,
2018
S 16 .A Outfalls 001 and 002 Chronic

Toxicity: Characterization Report Quarterly for one year July 30, 2015

S 16 .D Outfalls 001 and 002 Chronic

Toxicity: Compliance Monitoring Reports Quarterly, if required October 30, 2016, if applicable

S 16 .E Outfalls 001 and 002 Chronic

Toxicity: Response to noncompliance reporting As necessary

S 16 .F Outfalls 001 and 002 Chronic

Toxicity Effluent Test Results
with Permit Renewal Application Once in last winter prior to application for permit renewal Within 45 days of sampling and no later than May 1, 2019

S16.F Outfalls 001 and 002 Chronic

Toxicity Effluent Test Results
with Permit Renewal Application Once in last summer prior to application for permit renewal Within 45 days of sampling and no later than November 15,
2018
S17.A SEC Efficiency Study Plan Once August 1, 2015
S17.B SEC Efficiency Study Report Once Within 120 days of study completion
S18 Anode Contact Cooling Water

AKART Evaluation or Documentation of Elimination of the Discharge Once February 1, 2016

S19 Ground Water Impact Study

Report Once Within 120 days of study completion
S20 Outfall 011 and 012 BMP

Efficiency Study Plan Once August 1, 2016

S20 Outfall 011 and 012 BMP

Efficiency Study Report Once Within 120 days of study completion
G1 Notice of Change in

Authorization As necessary

G4 Permit Application for

Substantive Changes to the Discharge As necessaryPage 7 of 80
Permit No. WA 00 0295

Permit
Section Submittal Frequency First Submittal Date

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

G21 Compliance Schedules As necessaryPage 8 of 80
Permit No. WA 00 0295



## Special Conditions

S1. Discharge L imits

All discharges and activities authorized by this permit must be consistent with the terms and conditions of this permit.

S1. A. Outfall 001 Process Wastewater and Stormwater D ischarges

The discharge of any of the following pollutants more frequently than, or a t a level in excess of that identified and authorized by this permit violates the terms and conditions of this permit.

Beginning on the effective date of this permit, the Permittee is authorized to discharge process wastewater, sanitary wastewater, stormwater, and conditionally approved non

- stormwater (Non

- Routine and Unanticipated Discharges, Condition S8) from Outfall 001 ( Latitude 48.840778, Longitude 122.720444) to the Strait of Georgia subject to complying with the following limits and conditio ns :

Effluent Limits: Outfall 001 Process Wastewater

Monitoring Point 101

Parameter Average Monthly a Maximum Daily b

Total Suspended Solids (TSS) 150 lbs/day 185 lbs/day

Fluoride 58 c /68 d /68 e lbs/day 140 c /198 d /296 e lbs/day

Aluminum 5.9 c / 9.0 d / 10.3 e lbs/day 13.4 c / 20 d / 30 e lbs/day

Free Cyanide (WAD) <1 2 μ g/l 1 2 μ g/l

Benzo(a)Pyrene 0.02 c /0.03 d /0.045 e lbs/day 0.043 c /0.065 d /0.098 e lbs/day

Antimony 1.9 c /2.9 d /4.3 e lbs/day 4.2 c /6.4 d /9.6 e lbs/day

Nickel 0.8 c /1.2 d /1.9 e lbs/day 1.2 c /1.8 d /2.7 e lbs/day

Oil and Grease 5 mg/l 10 mg/l

Minimum Maximum

pH f 6.0 standard units 9.0 standard units

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.Page 9 of 80
Permit No. WA 00 0295

Effluent Limits: Outfall 001 Process Wastewater

Monitoring Point 101

b Maximum daily effluent limit is the highest allowable 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 day. This does not apply to pH.

c Tiered limit, applies when monthly aluminum production is less than or equal to 10

, 305 tons.

d Tiered limit, applies when monthly aluminum production is greater than 10,305 tons and less than or equal to 15

, 614 tons.

e Tiered limit, applies when monthly aluminum production is greater than 15,614 tons.

f When pH is continuously monitored, excursions between 5.0 and 6.0, or 9.0 and 10.0 are not to be considered violations if no single excursion exceeds 60 minutes in length and total
excursions do not exceed 7 hours and 26 minutes per month. Any excursions below 5.0 and above 10.0 at any time are violations.

Effluent Limits: Outfall 001 Sanitary Lagoon Discharge

Monitoring Point 051

Parameter Average Monthly a Average Weekly b

Biochemical Oxygen Demand (5

- day) (BOD 5 ) 45.0 milligrams/liter (mg/L) 65.0 mg/l

22.4 pounds/day (lbs/day) 32. 4 lbs/day

Total Suspended Solids (TSS) 45.0 mg/l 65.0 mg/l

22.4 lbs/day 32.4 lbs/day

Minimum Number of Operating UV Tubes N/A 12

Percent Removal from
Influent , BOD 5 and TSS 65% c , d N/A

Minimum Maximum

pH 6.0 standard units 9.0 standard units

Parameter Monthly Geometric M ean Weekly Geometric M ean Fecal Coliform Bacteria e 200 organisms /100 400 organisms /100 mLPage 10 of 80
Permit No. WA 00 0295

Effluent Limits: Outfall 001 Sanitary Lagoon Discharge

Monitoring Point 051 milliliter (mL)

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 this sum by the total number of daily discharges measured.

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.

c The monthly average percent removal for BOD and TSS may be reduced to 55% when the monthly average of personnel working onsite is ≤400 persons.

d Percent removal from the influent means the percent removal efficiency across a treatment plant for a gi ven pollutant parameter, calculated as the monthly average influent concentration (AIC) minus the monthly average effluent concentration (AEC) divided by the AIC multiplied by 100.

e Ecology provides directions to calculate the monthly and the 7

- day geometric mean in publication No. 04

- 10

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

.

Effluent Limits: Outfall 001 Stormwater Monitoring Point D

- 10

Parameter Average Monthly a , d Maximum Daily b

Total Suspended Solids (TSS) 35 mg/L 75 mg/L

Fluoride 35 mg/L 50 mg/L

Aluminum 10 mg/L 15 mg/L

Benzo(a)Pyrene N/A <0.01 mg/L

Oil and Grease 5 mg/L 10 mg/L

Minimum Maximum

pH c 6.0 standard units 9.0 standard units

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 this sum by the total number

o f daily discharges measured.Page 11 of 80
Permit No. WA 00 0295

Effluent Limits: Outfall 001 Stormwater Monitoring Point D

- 10

b Maximum daily effluent limit is the highest allowable 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 day. This does not apply to pH.

c When pH is continuously monitored, excursions between 5.0 and 6.0, or 9.0 and 10.0 are not to be considered violation s if no single excursion exceeds 60 minutes in length and total
excursions do not exceed 7 hours and 26 minutes per month. Any excursions below 5.0 and above 10.0 at any time are violations.

d Due to the unpredictable nature of stormwater discharges, d ur ing months when only one sample event is possible, the average monthly limit is not applicable for that month.

S1.A.1 Netting Out at Outfall 001 (Monitoring Point 101)

Intalco’s effluent limits for TSS, aluminum, antimony, and nickel are for the

net amo unt of each parameter discharged through Outfall 001. The net
amount is calculated as: Net loading rate = the amount of the pollutant discharged through Monitoring Point 101 (process wastewater) in lbs/day

– the amount of the pollutant present in the int ake water from the PUD in lbs/day.

Netting out is not allowed if it results in environmental degradation of the receiving water. Ecology will notify Intalco in writing if it determines that netting out is resulting in environmental degradation and is no longer allowed.

S1.B. Outfall 002 Stormwater Di scharges

Beginning on the effective date of this permit, the Permittee is authorized to discharge stormwater and conditionally approved non

- stormwater ( Non

- Routine and Unanticipated Discharges, Condition S8 ) from Outfall 002 to the Strait of Georgia during extreme rainfall events when stormwater discharges exceed the hydraulic capacity of Outfall 001 or the diversion structure that carries stormwater to Outfall 001. The discharge shall not violate the following limits:

Effluent Limits: Outfal l 002

– Stormwater and Conditionally Approved Non

- Stormwater

Latitude 48.839444 Longitude 122.715583

Monitoring Point D

- 10

Parameter Average Monthly a , b Maximum Daily c

Total Suspended Solids (TSS) 35 mg/L 75 mg/L

Fluoride 35 mg/L 50 mg/L

Aluminum 10 mg/L 15 mg/LPage 12 of 80
Permit No. WA 00 0295

Effluent Limits: Outfal l 002

– Stormwater and Conditionally Approved Non

- Stormwater

Latitude 48.839444 Longitude 122.715583

Monitoring Point D

- 10

Benzo(a)Pyrene N/A <0.01 mg/L

Oil and Grease d 5 mg/L 10 mg/L

Minimum Maximum

pH e 6.0 standard units 9.0 standard units

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 this sum by the total number of daily discharges measured.

b Due to the unpredictable nature of stormwater discharges, during months when only one sample event is possible, the average monthly limit is not applicable for that month.

c Maximum daily effluent limit is the highest allowable daily discharge. The daily discharge is the average discharge of a pol lutant 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 day. This does not apply to pH.

d Compliance with th is oil and grease limit can be demonstrated with the oil and grease sampling required for Outfall 0 0 1 Stormwater (Monitoring Point D

- 10)

e When pH is continuously monitored, excursions between 5.0 and 6.0, or 9.0 and 10.0 are not

to be considered violations if no single excursion exceeds 60 minutes in length and total
excursions do not exceed 7 hours and 26 minutes per month. Any excursions below 5.0 and above 10.0 at any time are violations.

S1. C

. Outfall 011 and Outfall 012 Stormwater Discharges

Effluen t Limits: Outfall s 011 and 012

- Stormwater

Outfall 011

– Latitude 48.842500 Longitude 122.714722

Outfall 012

- Latitude: 48.840278 Longitude: 122.714722

The Permittee is authorized to discharge stormwater from Outfalls 011 and Outfall 012. There are currently no permit lim its or action levels for these outfalls. See Special Condition S 2 0

– Outfall 011 and Outfall 012 BMP Effectiveness Study.

S1. D

. Discharge Action Levels

Action Level values are not effluent limitations. Discharges that fa il to meet action level values are not automatically considered permit violations or violations of water quality standards; however, if the Permittee fails to meet action levels that trigger a corrective action and does not comply with the specificPage 13 of 80
Permit No. WA 00 0295

correct ive action requirements in Special Condition S1. D .1, S1. D .2, and S1. D .3, it would be a permit violation.

S1.D .1 Stormwater Pond Action Levels

Stormwater Pond Action Levels Monitoring Point STRMP

Parameter Action Level

Total Suspended Solids (TSS) 35 mg/l

Fluoride 35 mg/l

Aluminum 10 mg/l

pH Outside the range of 6 .0 to 9.0

Each time that sampling results are above an action level for TSS, fluoride

, aluminum

, or outside the action level range for pH the Permittee must take the following actions:

a. Conduct an inspection of the drainage area for the affected outfall as promptly as possible

, but no later than 72 hours after receipt of sampling results. The Permittee shall also complete the following: review BMPs, check for spills to the stormwater sys tem, and check ditches and weir integrity and placement.

b. Identify , to the extent possible, sources of stormwater contamination from industrial activity that are causing or contributing to the elevated
levels of the action level parameter.

c. Evaluate whether any improvements or changes to existing best management (BMPs) or additional operational source control, structural source control, or treatment BMPs are warranted to reduce stormwater
contamination below action values. Any elevated action level
parameter s de monstrated to be attributed to vegetative or naturally occurring conditions do not require additional BMPs.

d. Implement changes to existing BMPs or additional BMPs identified as needed in the investigation on a schedule approved by Ecology. Ecology may waive the requirement for additional controls and/or BMPs based on a technical demonstration by the Permittee that implementation of additional controls is not feasible or not necessary to prevent discharges that may cause or contribute to a violation of w ater quality standards.

e. Include a brief summary of inspection results and remedial actions taken
in a.

– d. above with the semi

- annual Action Level Exceedance Report required by Permit Condition S1. D

. 3

.Page 14 of 80
Permit No. WA 00 0295

S1. D .2. Secondary Wastewater Treatment System Discharge

Secondary Wastewater Treatment System D ischarge

Monitoring Point SEC

Parameter Action Level

Total Suspended Solids (TSS) 120 mg/L

Fluoride 50 mg/L

Each time that sampling results are above an action level, the Permittee must
take the following actions:

a. Review the BMPs for the SWTP and check the addition rates of treatment chemicals, influent flows, and influent loading.

b. Identify, to the extent possible, industrial activity that may be causing or contributing to the elevated levels of t he action level parameter.

c. Evaluate whether any improvements or changes to existing best management (BMPs) or additional operational source controls are
warranted to reduce the effluent concentrations below action values.

d. Implement changes to existing BMPs or additional BMPs identified as needed in the investigation on a schedule approved by Ecology.

e. Include a brief summary of the investigation, including the results from
the actions associated with items a

. – d. above, and any remedial actions
taken in th e semi

- annual Action Level Exceedance Report req uired by
Permit Condition S1. D

. 3

. S1. D

. 3 Action Level Exceedance Report

The Permittee shall submit an Action Level Exceedance Report no later than January 15 th and July 15 th of each year. The semi

- annual reports shall
represent the pre ceding six months, July through December and January through June

, respectively. The semi

- annual report shall include corrective action documentation as required by S1. D .1 and S1. D .2. If corrective action
is not yet completed at the time of submission of the Action Level Exceedance Report, the Permittee must describe the stat us of any outstanding corrective action(s).

The Permittee shall include the following information with each Action Level Exceedance Repo rt:

a. Identify the action level(s) that trigger ed the need for corrective
action review and the number of times the action level wa s exceeded for that parameter in the last 12 months.

b. Provide the results of the initial inspection (s) /investigation (s) required by Permit Conditions S1. D .1 and S1. D .2.Page 15 of 80
Permit No. WA 00 0295

c. Describe any changes to BMPs or remedial actions that were taken in response to the exceeded action level.

d. If the action level for the same parameter is exceeded 6 or more
times in a 12

- month period, the Action Level Exceedance Report must include an analysis of whether additional operational or capital BMPs are necessary to reduce stormwater contamination below action levels and whether the action levels are appropriate for the expected pollutant loading and rem oval capability of the
stormwater treatment system.
S1.D.4 Visual Inspections of the Stormwater Discharges (Monitoring Points STRMP, Outfall 011, and Outfall 012 )

The Permittee must conduct monthly inspections of the stormwater pond discharge point (M onito ring P oint STRMP), Outfall 011, and Outfall 012. The inspections must be conducted by qualified personnel.

Each inspection must include visual observations of the stormwater sampling locations and areas where stormwater is discharged to waters of the sta te for the presence of potentially deleterious pollutants, such as floating materials, visible sheen, discoloration, turbidity, odor, or presence of illicit discharges, such as domestic wastewater, noncontact cooling water, process wastewater,

etc. The inspection must include an assessment of all stormwater BMPs that
have been implemented, the effectiveness of the BMPs, and whether any maintenance or changes in BMPs are needed.

If an illicit discharge is discovered, the Permittee must notify Ecolog y within 7 days. The Permittee must eliminate the illicit discharge within 30 days.

The Permittee must record the results of the each inspection including:

a. Time and date of inspection

b. Locations inspected

c. Any observations of potentially deleterious polluta nts and the remedial actions the Permittee plans to take address their presence

. d. Name, title, and signature of the person conducting the inspection.

The Permittee must submit the results of the monthly visual inspections with the monthly DMR required by Pe rmit Condition S3.A.

S1. E

. Mixing Z one A uthorization

S1. E .1 Mixing Z one for O utfall 00 1

The following paragraphs define the maximum boundaries of the mixing

zones:
Chronic mixing zonePage 16 of 80
Permit No. WA 00 0295

The mixing zone is a circle with radius of 21 6 feet ( 66 meters) measured from the center of each discharge port. The concentration of pollutants 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 21 .6 feet ( 6.6 m eters) measured from the center of each discharge port. The concentration of pollutants at the edge of the acute zone must meet acute aquatic life criteria.

Available Dilution (dilution factor) for Outfall

001

Acute Aquatic Life Criteria 21

Chronic Aquatic Life C riteria 52

Human Health Criteria

- Carcinogen 105

Human Health Criteria

- Non

carcinogen 77

S1. E .2 Mixing Z one for O utfall 002

The following paragraphs define the maximum boundaries of the mixing

zones:
Chronic mixing zone

The mixing zone is a circle with radius of 207 feet (63 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 pollutants 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 20.7 feet (6.3 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 pollutants at the edge of the acute zone must meet acute aquatic life criteria.

Available Dilution (d ilution factor) for Outfall 00 2

Acute Aquatic Life Criteria 19

Chronic Aquatic Life Criteria 33

Human Health Criteria

- Carcinogen 48

Human Health Criteria

- Non

C arcinogen 48Page 17 of 80
Permit No. WA 00 0295



### S2. Monitoring R equirements

S2. A. 1 Monitoring S chedule

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 ) Outfall 001 Process Wastewater ( Monitoring Point 101 )
Flow MGD 1/Day

– recorded but not reported Metered

Monthly Average and Daily Maximum Calculated a

TSS mg/L 1/wk b,c 24

- hr composite d

lbs/day Monthly Calculated a lbs/day Monthly Calculated net loading rate a

Fluoride mg/L 1/wk b 24

- hr composite d

lbs/day Monthly Calculated a

Aluminum mg/L 1/wk b,c 24

- hr composite d

lbs/day Monthly Calculated a lbs/day Monthly Calculated net loading rate a Free Cyanide e μ g/L 1/wk b , aa Grab f

Nickel mg/L Semi

- Annual g , aa 24

- hr composite d

lbs/day Semi

- Annual g Calculated a lbs/day Semi

- Annual g Calculated net loading rate a Benzo(a)Pyrene mg/L Quarterly h , aa 24

- hr composite d

lbs/day Quarterly h Calculated a Antimony mg/L Semi

- Annual g , aa 24

- hr composite d

lbs/day Semi

- Annual g Calculated a lbs/day Semi

- Annual g Calculated net loading rate a

Oil and Grease mg/L Monthly c , aa Grab f
Temperature i degrees

centigrade (  C) Continuous j Measurement

Daily Recorded

- Maximum

pH Standard
Units Continuous j Measurement

Standard
Units Daily Recorded

– Instantaneous
Maximum and Minimum k

Minutes Daily Duration pH between 5.0 and
6.0 and 9.0 and 10.0 l

( 2 ) Outfall 001 Sanitary Wastewater Treatment Plant Influent mPage 18 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

Biochemical Oxygen Demand (BOD 5 ) milligrams/L

(mg/L) 2/month n 24

- hr composite d

lbs/day Monthly Calculated Total Suspended Solids (TSS) mg/L 2/month n 24

- hr composite d

( 3 ) Outfall 001 Sanitary Wastewater Treatment Plant Effluent o

(Monitoring Point 051)

Flow Million

gallons per day (MGD) 1/Day

– recorded but

not reported Metered

Monthly Calculated a

– Monthly

Average and Daily Maximum Biochemical Oxygen Demand (BOD 5 ) milligrams/L

(mg/L) 2/month n, aa 24

- hr composite d

lbs/day Monthly Calculated a

BOD 5 Percent

Removal p Monthly Calculated p

Total Suspended Solids (TSS) mg/L 2/month n, aa 24

- hr composite d

lbs/day Monthly Calculated a

TSS Percent

Removal p Monthly Calculated p

Fecal Coliform q Organisms/

100 ml 2/month n, aa Grab f

Monthly Calculated Weekly Geometric

Mean q

Calculated Monthly
Geometric Mean q

Operating UV Tubes Number

operating 1/week b , aa Visual

pH Standard

Units 1 /week b , aa Grab f

( 4 ) Outfall 001 Stormwater Discharge (Monitoring Point D10)

Flow MGD 1/Day

– recorded but not reported Metered

Monthly Calculated a

TSS mg/L Once per storm

event v 24

- hr flow composite d

Fluoride mg/L Once per storm 24

- hr flow composite dPage 19 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

event v

Aluminum mg/L Once per storm

event v 24

- hr flow composite d

Benzo(a)Pyrene mg/L Annually, during a

storm event v 24

- hr flow composite d

Oil and Grease mg/L Monthly

, when flow is present during daily water
collection routine Grab f

pH Standard units Continuous j Metered

Monthly Recorded

– Instantaneous

Maximum and Minimum l
Precipitation Inches/day 1/Day

– recorded but not reported Metered s

Monthly Recorded (5) Outfall 001 Whole Effluent Toxicity Testing (Monitoring Point SP

- 10) Acute Toxicity Testing N/A Two times/permit
term as described in Special Condition
S1 5.F Grab f

Chronic Toxicity Testing N/A Quarterly, first four
quarters h Grab f

Chronic Toxicity Testing N/A Quarterly, if required by S1 6 .D h, t Grab f

Chronic Toxicity Testing N/A Two times/permit

term as specified by Special Condition S16, if required by
S16.F Grab f

Additional requirements specified in Special Condition S1 5 and S1 6

.

( 6 ) Outfall 001 Effluent o Characterization and Permit Renewal Requirements (Monitoring Point SP

- 10) See Appendix A to identify the specific pollutants in the pollutant groups listed below

Total Ammonia (as N) μg/L Annually Grab f

Priority Pollutants (PP)

– Total Metals, Cyanide e , and Total
Phenols μg/L; ng/L for

mercury Annually Grab fPage 20 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

PP

– Volatile Organic Compounds μg/L Annually Grab f

PP

– Acid

- extractable Compounds μg/L Annually Grab f

PP

– Base

- neutral Compounds μg/L Annually Grab f

PP

- Dioxin pg/L Annually Grab f

PP

– Pesticides/PCBs μg/L Annually u , when
used on

- site Grab f

PP

- Pesticides/PCBs μg/L Once in the fourth year of the permit Grab f

( 7 ) Outfall 002 Stormwater (Monitoring Point D10)

Flow Gallons/day Monthly Estimated

TSS mg/l Once per discharge

event v, w Grab f

Fluoride mg/l Once per discharge

event v, w Grab f

Aluminum mg/l Once per discharge

event v, w Grab f

Benzo(a)Pyrene mg/l Annually, during a discharge event v, w Grab f

pH Standard
Units Continuous (during

the discharge event)

j, v, w Metered

( 8 ) Outfall 002 Whole Effluent Toxicity Testing (Monitoring Point D10)

Acute Toxicity Testing N/A Quarterly

, during a discharge event

, first four quarters h Grab f

Acute Toxicity Testing N/A Quarterly , during a discharge event, if required by S1 5 .D h, t Grab f

Acute Toxicity Testing N/A Two times/permit

term as specified by Special Condition Grab fPage 21 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

S1 5 , if required by
S1 5 .F

Chronic Toxicity Testing N/A Quarterly, during a discharge event, first four quarters h Grab f

Chronic Toxicity Compliance Testing N/A Quarterly, during a discharge event, if required by S1 6 .D h, t Grab f

Chronic Toxicity Testing N/A Two times/permit

term as specified by Special Condition S16, if required by
S16.F Grab f

Additional requirements specified in Special Condition S1 5 and S1 6

.

(9) Outfall 011 x Stormwater

TSS mg/L Monthly, beginning
December 2016 Grab f

Aluminum mg/L Monthly

, beginning
December 2016 Grab f

Fluoride mg/L Monthly, beginning
December 2016 Grab f

(10) Outfall 012 x Stormwater

TSS mg/L Monthly, beginning
December 2016 Grab f

Aluminum mg/L Monthly, beginning
December 2016 Grab f

Fluoride mg/L Monthly, beginning
December 2016 Grab f

(11) Stormwater Pond Action Level Monitoring (Monitoring Point STRMP)

Flow Cubic feet per

second (cfs) Continuous Metered

Monthly Average
and Recorded
Maximum Calculated a

TSS mg/L Once per storm

event r 24

- hr flow composite d

Fluoride mg/L Once per storm

event r 24

- hr flow composite dPage 22 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

Aluminum mg/L Once per storm

event r 24

- hr flow composite d

pH Standard units Continuous, during a

storm event r Metered

Once per storm

event r Recorded

- Instantaneous

Maximum and Minimum (12) Secondary Wastewater Treatment System Effluent o Action Level Monitoring (Monitoring Point SEC)

Flow MGD 1/Day

– recorded but not reported Metered

Monthly Calculated a

TSS mg/L 2/week b , aa Flow

- proportional batch composite y

Fluoride mg/L 2/week b , aa Flow

- proportional batch composite y

Free Cyanide e , bb ug/l 2/week b , aa Grab f

PCBs ug/l Semi

- Annual g Grab f
( 13 ) PUD Intake Water z

Flow MGD 1/ week

– recorded but not reported Metered

Monthly Calculated a

TSS mg/l 1/week 24

- hr composite d

lbs/day Monthly Calculated a

Aluminum mg/l 1/week 24

- hr composite d

lbs/day Monthly Calculated a Antimony mg/l Semi

- Annual g 24

- hr composite d

lbs/day Semi

- Annual g Calculated a

Nickel mg/l Semi

- Annual g 24

- hr composite d

lbs/day Semi

- Annual g Calculated a

Arsenic mg/L Semi

- Annual g 24

- hr composite d
( 14 ) Production

Aluminum
Production Tons/Month 1/Day

– recorded but not reported Recorded

Monthly Calculated a

Personnel Personnel

working
onsite Monthly Average Estimated

(1 5 ) Sediment StudyPage 23 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

As specified in Special Condition S1 2

. Footnotes for S2.A.1 Monitoring Table

a Calculated values are determined using the results of the respective sample(s). Flow and production values are calculated by summing the daily measured values during the month/quarter and dividing by the number of days in the month/quarter. Average concentration values are calculated by summing the concentration values measured during the month/quarter and dividing the total by the number of sa mples analyzed for that parameter during the month/quarter. Pollutant loading rates are calculated using the following formula: Concentration (in mg/L) X Flow (in MGD) X Conversion Factor (8.34) = lbs/day For pollutants with a net loading rate, n et loadin g rate equals the amount of the pollutant discharged through Monitoring Point 101 (process wastewater) in lbs/day
minus the amount of the pollutant present in the intake water from the PUD in lbs/day. When the net loading rate is less than zero, zero shal l be used for reporting and calculating the monthly average.

b 1/week, 2/week or 3/week means one (1), two (2) or three (3) samples during each calendar week, respectively.

c See Permit Condition S2.A.2 for reduced monitoring frequencies during tempora ry curtailment periods.

d 24

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

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

e The method for free cyanide analysis shall be Weak Acid Dissociable as specified in Appendix A.

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

g Semi

- annual means two times per year. Semi

- annual sampling is co nducted at least once in January through June and at least once in July through December.

h Quarterly sampling periods are January through March, April through June, July through September, and October through December. For WET testing only

- i f
sufficie nt flow is not present during a quarter, sample at the next reasonable sampling opportunity. Ensure that 4 samples are collected each calendar year as would be represented in collecting for each quarter.

i Temperature grab sampling must occur when the effluent is at or near its daily maximum temperature, which usually occurs in the late afternoon. If measuring temperature continuously, the Permittee must determine and report a daily maximum
from a minimum interval of half

- hour measurements in a 24

- hour period. Continuous monitoring instruments must achieve an accuracy of 0.2 degrees C (or as otherwise approved by Ecology) and the Permittee must verify accuracy annually. j Continuous means uninte rrupted except for brief lengths of time for calibration, power failure, or unanticipated equipment repair or maintenance. The Permittee must take a measurement or collect a grab sample at least once every four hours when continuous monitoring is not poss ible.

k The Permittee must report the instantaneous maximum and minimum pH monthly. DoPage 24 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

not average pH values.

l The Permittee must record and report the:

 Number of minutes the pH value measured between 5.0 and 6.0 and between 9.0 and 10.0 for each day.

 Total minutes for the month.

 Monthly instantaneous maximum and minimum pH.

If multiple excursions occur during the day, note the duration for each excursion. If submitting electronic DMRs, include this additional information in the parameter

notes.

m Wastewater Influent means the raw sewage flow; sample at the headworks of the treatment plant excluding any side

- stream returns from inside the plant.

n 2/month means two (2) times during each calendar month

. The samples may not be
collected in the same c alendar week.

o Final Effluent means wastewater exiting, or that has exited, the last treatment process or operation. Typically, this is after or at the exit from the chlorine contact chamber or other disinfection process.

p Percent removal = ( (Average Influent concentration (mg/L)

– Average Effluent concentration (mg/L)) ÷ (Average Influent concentration (mg/L))) X 100 Calculate the percent r emoval of BOD 5 and TSS using the above equation.

q Report a numerical value for fecal coliforms follow ing the procedures in Ecology’s Information Manual for Treatment Plant Operators , Publication Number 04

- 10

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

r A storm event is defined as a stormwater pond discharge greater than 3.7 cfs over any consecutive 120 minute period. However, only one 24

- hour composite sample is required to be collected at any poin t in time. In addition, the Permittee is not required to start collecting the next composite sample until at least 48 hours after the previous composite sampl ing was co mpleted . Monitoring in excess of 3 times per week is not required. “Week” is defined as Monday through Sunday.

s The Permittee may use local NOAA weather data for their precipitation data if the facility weather data is not available.

t Testing to demonstrate compliance with a toxicity limit will be required if required by
Permit Condition S1 5 .D or S1 6 .D. If compliance testing is required, monitoring will begin the fifth quarter after the effective date of the permit.

u For every year except the 4 th year of the permit, the PCBs and pesticides listed in Appendix A are not requir ed to be tested for unless they are used at the facility.

v The Permittee must collect grab samples of the stormwater at D

- 10 once per discharge
event from Outfall 002 but no more frequently than on c e per week.

w The monitoring point for Outfall 002 is D

- 10. Samples collected from D

- 10 less than 24 hours prior to a discharge event for Outfall 002 may be used to satisfy the OutfallPage 25 of 80
Permit No. WA 00 0295

Parameter Units &

Speciation Minimum

Sampling Frequency Sample Type

002 sampling requirements.

x Refer to Permit Condition S2 0 for monitoring requirements at Outfalls 011 and 012.

y A flow proportional batch composite sample means a series of individual samples collected over a single batch process into a single container, and analyzed as one sample.

z PUD Intake water sampling is required for Intalco to net out pollutants as allowed by Permit Condition S1.A.1. Sampling is not required during a respective sampling period if Intalco does not plan to net out during that sampling period for that pollutant.

aa The monitoring fre quency for this parameter has been reduced based on exemplary performance. To remain elig ible for these reductions, the P ermittee may not have any
violations of effluent limitations or exceedance of the action level for this parameter or fail to submit DM Rs. Violations of the effluent limit or exceedance of the action level for the parameter, failure to submit DMRs, or any other formal enforcement action may require increased monitoring. If such increased monitoring is deemed necessary by Ecology, the ne w monitoring frequency will be established by a minor permit
modification or an Administrative Order

. bb The Permittee may request a reduction in the monitoring frequency of free cyanide at the SEC once the Natural Engineering Wastewater Treatment (NEWT) system has been operational for at least 12 months . Based on the free cyanide results at the SEC
for a 1 2 month period , the monitoring frequency may be reduced upon written notification from the Department.

S2.A. 2 Temporary Curtailment Reduced Monitoring Frequencies

Temporary curtailment is defined as the shut

- down of 90% or more of potline operations. D uring periods of temporary curtailment of smelting operations, the Permittee may reduce effluent monitoring to the frequencies shown in the following table. Parameters not include in the table below must be sampled at the frequency required in S2.A.1. Up on restart of the curtailed operations, monitoring frequencies shall revert back to those specified in S2.A.1.

Parameter Units & Speciation Reduced
Minimum Sampling Frequency Sample Type

(1) Outfall 001

– Monitoring Point 101

TSS mg/L Monthly a 24

- hr composite b
lbs/day Monthly Calculated c

Aluminum mg/L Monthly a 24

- hr composite b
lbs/day Monthly Calculated c

Oil and Grease mg/L Quarterly d Grab e

( 2 ) Outfall 001 Stormwater Discharge (Monitoring Point D

- 10 )

TSS mg/L Weekly, when 24

- hr composite bPage 26 of 80
Permit No. WA 00 0295

Parameter Units & Speciation Reduced
Minimum Sampling Frequency Sample Type

there is a storm

event f

Fluoride mg/L Weekly, when
there is a storm

event f 24

- hr composite b

Aluminum mg/L Weekly, when
there is a storm

event f 24

- hr flow composite

b

Oil and Grease mg/L Quarterly d

, when flow is present during daily water
collection routine Grab e

( 3) Stormwater Pond Action Level Monitoring ( Monitoring Point STRMP )

TSS mg/L Weekly, when
there is a storm

event f 24

- hr composite b

Fluoride mg/L Weekly, when
there is a storm

event f 24

- hr composite b

Aluminum mg/L Weekly, when
there is a storm

event f 24

- hr flow composite

a Monthly means once every calendar month , alternating weeks wit hin the month when practicable.

b 24

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

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

c Calculated means 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

d Quarterly sampling periods ar e January through March, April through June, July through September, and October through December.

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

f A storm event is defined as a stormwater pond discharge greater than 3.7 cfs over any consecutive 120 minute period. However, only one 24

- hour composite sample is required to be collected at any point in time. In addition, the Permittee is not required to start collecting the next composite sample until at le ast 48 hours after the previous composite sample was collected.

S2. B. Sampling and Analytical P rocedures

Samples and measurements taken to meet the requirements of this permit must represent the volume and nature of the monitored parameters, includingPage 27 of 80
Permit No. WA 00 0295

rep resentative sampling of any unusual discharge or discharge condition, including bypasses, upsets, and maintenance

- related conditions affecting effluent quality.

For the days monitored at Outfalls 001 and the Sanitary Lagoon: after a portion of the composit e sample is removed for the Permittee’s analysis, the following
remainder must be retained until 3:00 p.m. that day. The samples must be kept refrigerated at approximately 4 degrees Celsius ( o C) in the dark during collection and storage.

 Outfall 001: 2 quarts or 2000 mL, minimum

 Sanitary Lagoon Discharge: 1 gallon or 4 L, minimum

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 Proce dures 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 limits and for those parameters without an EPA approved test method in 40 CFR Part 136

. S2. C. Flow M easurement , Field M easurement, and Continuous Monitoring D evices

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

.

a. The calibration frequency may be reduced to monthly if the Permittee is able to demonstrate that monthly calibrations are sufficient based on monitoring records or the manufacturer’s
recommendations

.
4. The Permittee m ust calibrate the continuous pH monitoring probes using a 2 point calibration with standard pH buffers or per the manufacturer’s
recommendations

. 5. Use field mea surement devices as directed by the manufacturer and do not use reagents beyond their expiration dates.

6. Calibrate field measurements devices at the frequency recommended by the
manufacturer.

7. Calibrate flow

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

8. Maintain calibration records for at least three years.Page 28 of 80
Permit No. WA 00 0295

S2. D. Laboratory A ccreditation

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

- 50 WAC

, Accreditation of Environmental Laboratories

. Flow, temperature, settleable solids, pH, and internal process control parameters are exempt from this requirement. The Permittee must obtain accreditation for pH if it must receive accreditation or registration for other parameters.

S2.E. Request for Reduction in M onitoring

The Permittee may request a reduction of the sampling frequency after twelve (12) months of mon itoring. 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. Provide a written request.

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

3. Clearly state the justification for the reduction.



### S3. Reporting and Recording R equirements

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 the Water Quality Permitting Portal

. Include data for each of the parameters tabulated in Special Condition S2 and 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) inc luded on the electronic form.

To find out more information a nd to sign up for Water Quality Permitting
Portal go to: http://www.ecy.wa.gov/programs/wq/permits/paris/webdmr.html

2. Enter 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 discharge 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 le ve l (e.g. < 2.0) on the DMR. If the method used did not meet the minimum DLPage 29 of 80
Permit No. WA 00 0295

and quantitation level (QL) identified in the permit, report the actual QL and
DL in the comments or in the location provided

.
4. Report the test method used for analysis in the comme nts if the laboratory used an alternative method not specified in the permit and as allowed in Appendix A OR S2.

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

a. The reported numeric value for all parameters measured between the

agency

- required detection value and the agency

- required quantitation
value.

b. One

- half the detection value (for values reported below detection) if the lab detected the parameter in another sample from the same monitoring point for the reporting period.

c. Re port that the parameter is non

- detect i f the lab did not detect the parameter in an y sample for the reporting period.

6. Report single

- sample grouped parameters (for example priority pollutants, PAHs) on the WQ WebDMR form and include: sample date, concentration detected, detection limit (DL) (as necessary), and laboratory quantitation level (QL) (as necessary).

7. The Permittee must also submit an electronic PDF copy of the laboratory
report as an attachment using WQ WebDMR

. The contract laboratory reports must also include information on the chain of custody

, QA/QC

, and
confirmation t hat the lab is accredit ed for each parameter tested

.
8. Ensure that DMRs are electronically submitted no later than the dates specified below, unless otherw ise specified in this permit.

9. 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.

b. Submit quarterly DMRs , unless otherwise specified in the permit, by
the 15 th day of the month following the monitoring period. Quarterly sampling periods are January through March, April through June, July through September, and October through December.

c. Submit semiannual DMRs , unless otherwise specified in the permit, by July 15 and January 15 of each year. Semiannual sampling periods are January through June, and July through December.

d. Submit annual DMRs (including priority pollutants) , unless otherwise specified in the permit, by January 15 for the previous calendar year. The annual sampling period is the calendar year.

10. Submit permit renewal application monitoring data in WQ WebDMR as required in Special Condition S2 by August 1, 2019.Page 30 of 80
Permit No. WA 00 0295

11. Submit reports to Ecology online using Ecology’s electronic WQ WebDMR submittal forms (electronic DMRs) as required above. Send paper reports to Ecology at:

Water Quality Permit Coordinator Department of Ecology
Industrial Section
PO Bo x 47 600 Olympia, WA 98504

- 7600

S3. B. Permit Submittals and Schedules

The Permittee must use the Water Quality Permitting Portal

– Permit Submittals application (unless otherwise specified in the permit) to submit all other written permit

- required reports by the date specified in the permit.

When another permit condition requires submittal of a paper (hard

- copy) report, the Permittee must ensure that it is postmarked or received by Ecology no later than the dates specified by this permit. Send these paper reports to Ecology at:

Water Quality Permit Coordinator Department of Ecology
Industrial Section
PO Box 47706 Olympia, WA 98504

- 7600

S3.C Records R etention

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. D

. Recording of R esults

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

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

2. The individual who perfor med the sampling or measurement

3. The da tes the analyses were performed

4. The indivi dual who performed the analyses

5. The analyti cal techniques or methods used

6. The results of all analysesPage 31 of 80
Permit No. WA 00 0295

S3. E

. Additional M onitoring by the P ermittee

If the Permittee monitors any poll utant more frequently than required by Special Condition S2 of this permit using test procedures specified in Special Condition
S2.B. , then the Permittee must include the results of such monitoring in the calculation and reporting of the data submitted in the Permittee's DMR unless otherwise specified by Special Condition S2

. S3. F

. Reporting Permit V iolations

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, con tain, and cleanup unauthorized 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 with the applicable monthly DMR

.

a. Immediate r eporting

The Permittee must immediately report to Ecology and the Department of Health, Shellfish Program (at the numbers listed below), all:

 Failures of the disinfection system which results in the discharge of
untreated water.

 Collection system overflows discharging to marine surface waters.

 Plant bypasses discharging to marine surface waters.

Department of Ecology
Northwest Regional Office 1

- 425

- 649

- 7000 (24 hours)

Department of Health, Shellfish Program (360) 236

- 3330 (business hours) (360) 789

- 8962 ( after business hours ) sf.growingarea@doh.wa.gov

The Permittee must also notify the Ecology Industrial Section permit manager by telephone for any of the above situations. Outside of normal working hours, a voice mail notification to the Industrial Section permit manager or their designated backup will meet this requirement.

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 any effluent limit in the permit (See Part S4.B., “Bypass Procedures”).Page 32 of 80
Permit No. WA 00 0295

3. Any upset that causes an exceedance of an effluent limit in the permit (See G.15, “Upset”).

4. Any violation of a maximum daily or instantaneous maximum disch arge limit for any of the pollutants in Section S1.A or S1.B 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 within five day s

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 o f 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 prevent recurrence of the noncompliance.

5. If the noncompliance in volves 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 subpart c, above, on a

case

- by

- case basis upon request if the Per mittee has submitted a timely oral
report. If Ecology waives the 5

- day written report, a written report of the incident shall be submitted with the monthly Discharge Monitoring 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 re lieve the Permittee from responsibility to maintain continuous compliance with the terms and conditions of this permit or the resulting liability for failure to comply.

f. Report S ubmitta l

The Permittee must submit reports as specified in Permit Condition S3.A.10

.Page 33 of 80
Permit No. WA 00 0295

S3. G

. Other R eporting

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

.
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. H

. Maint aining a Copy of this P ermit

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



### S4. Operation and M aintenance

The Permittee must, at all times, properly operate and maintain all facilitie s or 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 , but is not limited to, keeping operational logbook s (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 ach ieve compliance with the conditions of this permit.

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 mainte nance out according to the approved O&M manual or as otherwise approved by Ecology.

S4. A. Operations and Maintenance (O&M) M anual

a. O&M M anual submittal and requirements

The Permittee must:

1. Review the O& M Manual at least annually and confirm this review by letter to Ecology by January 31st of each year

.
2. Submit to Ecology for review substantial changes or updates to the O&M Manual whenever it incorporates them into the manual.

3. Keep the approved O&M Man ual at the permitted facility.

4. Follow the instructions and procedures of this manual.Page 34 of 80
Permit No. WA 00 0295

b. O&M M anual components for the Sanitary Lagoon

In addition to the requirements of WAC 173

- 240

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

1. Emergency procedures for plant shutdown and cleanup in the event of a 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 o f these components

.
3. Wastewater sampling protocols and procedures for compliance with the sampling and reporting requirements in the wastewater discharge permit.

c. O&M Manual components for Industrial Wastewater Facilities

In addition to the requirements o f WAC 173

- 240

- 150 (1) and (2), the O&M
Manual must include:

1. Emergency procedures for plant shutdown and cleanup in the event of a 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 these components.

3. Wastewater sampling protocols and procedures for compliance with the sampling and reporting requirements in the wastewater discharge permit.

4

. Checking the secondary wastewater treatment plant clarifier cover in accordance with the existing inspection plan and take corrective action as needed to repair/replace missing or inadequate cover components.

d. Treatment system operating plan

The Permittee must summarize the following information in the initial chapter of the O&M Manual entitled the “Treatment System Operating Plan.” For the purposes of this permit, a Treatment System Operating Plan (TSOP) is a concise summary of specifically defined elements of the O&M Manual.

The Permittee must submit an updated Treatment System Operating Plan to Ecology by August 1, 2019 . The Permittee must update and submit this plan, as necessary, to include requirements for any major modifications of the
treatment system.

The TSOP must not conflict with the O&M Manual and must include the following information:

1. A baseline operating condition, which describes the operating parameters and procedures, used to meet the effluent limits of S1 at the product ion levels used in developing these limits.Page 35 of 80
Permit No. WA 00 0295

2. In the event of production rates which are below the baseline levels used to establish these limits, the plan must describe the operating procedures and conditions needed to maintain design treatment efficiency. The monitoring and reporting must be described in the plan.

3. In the event of an upset, due to plant maintenance activities, severe stormwater events, start ups or shut downs, or other causes, the plan must describe the operating procedures and conditions e mployed to mitigate the upset. The monitoring and reporting must be described in the plan.

4. A description of any regularly scheduled maintenance or repair activities at the facility which would affect the volume or character of the wastes discharged to the wastewater treatment system and a plan for monitoring and treating/controlling the discharge of maintenance

- related materials (such as cleaners, degreasers, solvents, etc.).

S4. B. Bypass P rocedures

This permit prohibits a bypass, which is the intentional diversion of waste streams from any portion of a treatment facility.

Storm events that exceed the hydraulic design criteria of stormwater treatment systems may bypass the treatment system provided the bypass does not cause an exceedance of water quality criteria. Such bypasses are allowed because Ecology
has determined th at Intalco’s stormwater treatment system meets AKART requirements

. Ecology may take enforcement action against a Permittee for a bypass unless one of the following circumstances (1, 2, o r 3) applies.

1. Bypass for essential maintenance without the potential to cause violation of permit limits or conditions

. This permit authorizes a bypass 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. Bypass is unavoidable, unanticipate d, and results in noncompliance of this permit

. This permit authorizes such a bypass only if :

a. Bypass 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 ex ist, such as:Page 36 of 80
Permit No. WA 00 0295

 The use of auxiliary treatment facilities.

 Retention of untreated wastes.

 Stopping production.

 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. The Permittee has properly notified Ecology of the bypass as required in Special Condition S3. F of this permit

.
3. If bypass is anticipated and has the potent ial to result in 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 whic h would eliminate, reduce, or mitigate the need for bypassing.

 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 p referred alternative 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 qualit y standard is anticipated.

 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 design documents (such as facility plans, engineering reports, and plans and specifications) and the design documents must include the results of the analysis to the e xtent practical. In cases where the Permittee determines the probable need to bypass 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 consid er the following prior to issuing an administrative order for this type of bypass:Page 37 of 80
Permit No. WA 00 0295

 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 e xist, 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 significant duration, t o the extent feasible. Ecology will approve a request to bypass by issuing an administrative order under RCW 90.48.120.



### S5. Solid W astes

S5. A. Solid Waste H andling

The Permittee must handle and dispose of all solid waste material in such a

manner as to prevent its entry into state ground or surface water.

S5. 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 leach ate 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 discharg es to state ground or
surface waters.

S5. C. Solid Waste Control P lan

The Permittee must submit all proposed revisions or modifications to the solid waste control plan to Ecology for review and approval at least 30 days prior to implementation. The Permitt ee must comply with the approved solid waste control plan and any modifications once approved. The Permittee must submit an update of the solid waste control plan with the permit renewal application by August 1, 2019

.



### S 6

. Application for Permit Renewal or Modification for Facility C hanges

The Permittee must submit an application for renewal of this permit by August 1, 2019

. 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. These activities include any facility expansions, production increases, or other planned changes, such as process modifications, in the permitted facility.Page 38 of 80
Permit No. WA 00 0295



### S 7

. Facility L oading

S 7 .A. Design C riteria

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

Sanitary Lagoon Flow through the UV Disinfection System 350,000 gpd

Stormwater Pond
Influent Flow 30 cfs in any consecutive 10 minute period* *As determined by measuring stormwater pond effluent and adjust ing for
rainfall

S7 .B. Stormwater Treatment De sign C riteria

As specified in Permit Condition S4.B, s torm events that exceed the hydraulic design criteria of stormwater treatment systems may bypass the treatment system
because Ecology has determined the system meets AKART requirements. If the Permittee must bypass the storm water pond to meet the design criteria specified above, Ecology will not consider that specific bypass event to be an exceedance
of the storm w ater pond’s design capacity.



### S 8

. Non

- Routine and Unanticipated D ischarges

1. Beginning on the effective date of this permit, the Permittee is auth orized to discharge

non

- routine wastewater to Outfall 001 and non

- stormwater discharges to the stormwater treatment pond o n a case

- by

- case basis if approved by Ecology. Prior to any such discharge, the Permittee must contact Ecology and at a minimum provi de the following information:

a. The proposed discharge location

b. The nature of the activity that will generate the discharge

c. Any alternatives to the discharge, such as reuse, storage, or recycling of the water

d. The total volume of water it expects to discharge

e. The results of the chemical analysis of the water

f. The date of proposed discharge

g. The expected rate of discharge discharged, in gallons per minute

2. The Permittee must analyze the water for any parameter deemed necessary by Ecology and report the results of the analysis as required by S8.1.e. All discharges must comply with the effluent limits as established in Special Condition S1 of this permit, water quality standards, and any other limits imposed by Ecology.Page 39 of 80
Permit No. WA 00 0295

3. The Permittee must limit the di scharge rate, as referenced in subpart 1.g above, so it will not cause erosion of ditches or structural damage to culverts and their entrances
or exits.

4. The discharge cannot proceed until Ecology has reviewed the information provided
and has authorized the discharge by letter to the Permittee or by an Administrative Order. Once approved and if the proposed discharge is to a municipal storm drain, the Permittee must obtain prior approval from the municipality and notify it when it plans to discharge.



### S9. Sp ill Control P lan

S 9

. A. Spill Control Plan Submittals and R equirements

The Permittee must:

1. Submit an update to the existing spill control plan to Ecology by February 1,
2016

.
2. Review the plan at least annually and update the spill plan as needed.

3. Send changes to the plan to Ecology.

4. Follow the plan and any supplements throughout the term of the permit.

S 9

. B. Spill Control Plan C omponents

The spill control plan must include the following:

1. A list of all oil and petroleum products and other materials used and/or stored

on

- site, which when spilled, or otherwise released into the environment, designate as Dangerous Waste (DW) or Extremely Hazardous Waste (EHW) by the procedures set forth in WAC 173

- 303

- 070. Include other materials
used and/or stored on

- site which may become pollutants or cause pollution upon reaching state's waters.

2. A description of preventive measures and facilities (including an overall facility plot showing drainage patterns ) which prevent, contain, or treat spills
of these materials.

3. A description of the reporting system the Permittee will use to alert responsible managers and legal authorities in the event of a spill.

4. A description of operator training to implement the plan

. The Permittee may submit plans and manuals required by 40 CFR Part 112, contingency plans required by Chapter 173

- 303 WAC, or other plans required by other agencies

, which meet the intent of this section.



### S 10

. Stormwater Pollution P revention

The Permittee must maintain and follow the Stormwater Pollution Plan (SWPPP) for the permitted facility. The Pollution Prevention Plan must specify the Standard OperatingPage 40 of 80
Permit No. WA 00 0295

Procedures (SOPs), Best Management Practices (BMPs), and work practices necessary

to :

 Provide all known, available, and reasonable methods of prevention, control, and treatment (AKART) of stormwater pollution.

 Ensure that stormwater discharges from the site do not cause or contribute to a violation of the Water Quality Standards.

 Be cons istent with the Stormwater Management Manual for Western Washington (2012 or later editions) or provide an equivalent level of pollution prevention approved by Ecology. The SWPPP must document that BMPs selected are demonstrably equivalent to practices co ntained in stormwater technical manuals approved by Ecology.

S 10

. A Stormwater Pollution Prevention Plan (SWPP P ) Update

The Permittee must update its SWPPP in accordance with the guidance document entitled Guidance Manual for Preparing/Updating a Stormwate r Prevention Plan for Industrial
Facilities (Ecology Publication No. 04

- 10

- 030). The SWPPP must be submitted to Ecology for review and approval by August 1, 2015 . The Permittee must implement the approved SWPPP update and any approved modifications to th e plan and abide by the timeframes identified in the plan.

The updated plan must:

 Identify any new sources of pollutants to stormwater.

 Update the BMPs

 Include a site map that identifies the following applicable items :

o The scale or relative distances between significant structures and drainage
systems.

o Significant features.

o The stormwater drainage and discharge structures and identify, by name, any other party other than the Permittee that owns any stormwater drainage or discharge structures.

o The sto rmwater drainage areas for each stormwater discharge point off

site (including discharges to ground water) and assign a unique identifying number for each discharge point.

o Paved areas and buildings.

o Areas of pollutant contact (actual or potential) associat ed with specific
industrial activities.

o Conditionally approved non

- stormwater discharges.

o Surface water locations (including wetlands and drainage ditches.)

o Areas of existing and potential soil erosion (in a significant amount).Page 41 of 80
Permit No. WA 00 0295

o Vehicle maintenance areas.

o Lands and waters adjacent to the site that may be helpful in identifying discharge points or drainage routes.

 Provide additional information regarding the areas contributing to Outfalls 011
and 012 and include BMPs associated with those outfalls.

 Inc lude any updates to Appendix A: Best Management Practices in the SWPPP

.

 Include the dates (month/year) when BMPs were implemented or action items were completed or a schedule for BMPs or action items not yet implemented or completed.

S 10

. B SWPPP Modifica tions

The Permittee shall modify the SWPPP whenever there is a change in design, construction, operation or maintenance, which causes the SWPPP to be less effective in controlling the pollutants. Whenever the description of potential pollutant sources or the pollution prevention measures and controls identified in the SWPPP are inadequate, the SWPPP shall be modified, as appropriate, within two (2) months of such determination. The proposed modifications to the SWPPP shall be submitted to Ecology at leas t 30 days in advance of implementing the proposed changes in the plan unless Ecology approves immediate implementation. The Permittee shall provide for implementation of any modifications to the SWPPP in a timely manner.

The Permittee may incorporate app licable portions of plans prepared for other

purposes. Plans or portions of plans incorporated into an SWPPP become enforceable requirements of this permit.

S 10

. C SWPPP Implementation

The Permittee shall conduct two inspections per year

- one during the wet season (October 1

– April 30) and the other during the dry season (May 1

– September 30).

1. The wet season inspection shall be conducted during a rainfall event by personnel trained by Intalco in the requirements of the SWPPP to verify that the descrip tion of potential pollutant sources required under this permit are accurate; that the site map required in the SWPPP has been updated or otherwise modified to reflect current conditions; and that the controls to reduce pollutants in stormwater discharges a ssociated with industrial activity identified in the SWPPP are being implemented and are adequate. The wet weather inspection shall include observations of the presence of floating materials, suspended solids, oil sheen , discolorations, turbidity, odor, e tc. in the stormwater discharges.

2. Personnel trained by Intalco in the requirements of the SWPPP shall conduct the dry season inspection. The dry season inspection shall determine the presence of unpermitted non

- stormwater discharges such asPage 42 of 80
Permit No. WA 00 0295

domestic wast ewater, noncontact cooling water, or process wastewater (including leachate ) to the stormwater drainage system

. If an unpermitted,

non

- stormwater discharge is discovered, the Permittee shall immediately notify Ecology.

S 10

. D SWPPP Evaluation

The Permittee shall evaluate whether measures to reduce pollutant loadings identified in the SWPPP are adequate and properly implemented in accordance with the terms of the permit or whether additional controls are needed. A record
shall be maintained summari zing the results of inspections and shall include a certification, in accordance with Condition G1 .4 . of this permit, that the facility is in compliance with the plan and in compliance with this permit. The record shall identify any incidents of noncompli ance.



### S 1 1

. Fugitive Alumina Pollution Prevention P lan

Ecology has determined that the Permittee must use best management practices when unloading alumina ore to minimize the release of fugitive alumina emissions to the Strait of Georgia. The Permittee must submit a Fugitive Alumina Pollution Prevention plan to Ecology for review and approval by August 1, 2016 . The Permittee must implement the Pollution Prevention plan within 60 days of approval of the plan by E cology. The
Pollution Prevention plan must include the following :

1. Existing procedures to minimize spillage and fugitive emissions during alumina ore unloading.

2. An assessment of the points, areas, and activities within the alumina ore unloading system tha t would likely generate fugitive alumina ore

.
3. Using the results of the assessment, an evaluation of potential measures t hat could be implemented to minimize the amount of alumina ore that is released to the environment during unloading activities

. For e ach measure, the plan must include a discussion of technical and economic feasibility and other factors that could influence the selection and implementation of the pollution prevention measure

. At a minimum, the measures evaluated must include the follow ing:

 Maintena nce of the seal on the alumina ore handling bucket (also known as the clamshell) to prevent fugitive alumina emissions during the conveyance of alumina ore from the ship to the unloading hopper.

 Maint enance of the flexible flaps located at the vestibule of the unloader hopper in good working condition. Damaged or mi ss ing flexible flaps

must be replaced prior to the next ship unloading event.

 Re

- p rogram ing the clamshell movements to:

 Ensure that after the alumi na is dumped into the hopper, the clamshell remains in place in an open position to allow remaining alumina to fall out into the hopper.Page 43 of 80
Permit No. WA 00 0295

 Ensure that the clamshell is tightly closed before it begins moving away from its dumping location over the hopper and remains
closed on the route back to the hold.

 Installi ng a containment system to prevent fugitive alumina emissions from escaping while bobcats are pushing the remaining alumina ore at the bottom of the hold into a pile.

 Inspection frequencies to check the following :

 T he tops and sides of the clamshell to make sure it is not holding
alumina ore that will fall off as the clamshell is moved from the hold to the hopper.

 C lamshell operations for visible fugitive alumina emissions during daylight hours when the clamshell is in operation.

 V acuum ing frequencies to clean spilled alumina ore off the pier during unloading operations.

4. The fugitive alumina pollution prevention measures selected and the timeframes for implementation.

5. A training plan to educate and train employees that operate the equipment used to unload the alumina ore on the importance of minimizing the release of fugitive
alumina ore

.
6. P rocedures for demonstrating compliance with the pollution prevention plan. Records of inspections and any corr ective actions taken must be kept on file and available for review by Ecology.



### S12

. Sediment M onitoring

S12 .A

. Sediment Data R eport

A sediment sampling and analysis plan w as submitted to Ecology on April 5,
2011 for review and approval. The Permittee must collect sediment samples during the first stable period ( which is mid

- August through mid

- September ) following Ecology’s approval of the sediment sampling and analysis plan. The Permittee must submit to Ecology a Sediment Data Report containing the results of the sediment sampling and analysis no later than 120 days after sample collection and no later than March 15, 2016. The sediment data report must conform to the approved sediment sampling and analysis plan

. 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/ ).



### S 13

. Outfall E valuation

The Permittee must inspect Outfall 001

, at least once every five years , the submerged portion of the outfall line and diffuser to document its integrity and continued function. If conditions allow for a photographic verification, the Permittee must include suchPage 44 of 80
Permit No. WA 00 0295

verification in the report. By October 1, 2016 and every five years thereafter, the Permittee must submit the inspection report to Ecology within 90 days of conducting the
outfall evaluation.

The inspector must at minimum:

 Assess the physical condition of the outfall pipe, diffuser, and associated couplings.

 Determine the extent of sediment accumulation in the vicinity of the diffuser.

 Ensure diffuser ports are free of obstructions and are allowing uniform flow.

 Confirm physical location (latitude/longitude) and depth (at MLLW) of the diffuser
section of the o utfall.

 Assess physical condition of the submarine line, including side sewer laterals up to the ordinary high water line.

 Assess physical condition of anchors used to secure the submarine line.



### S 14

. Certified O perator

Th e sanitary wastewater treatment plant permitted facility must be operated by an operator certified by the state of Washington for at least a Class I plant (per Chapter 70.95B RCW and Chapter 173

- 2 30 WAC). This operator must be in responsible charge of the day

- to

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



### S 15

. Acute T oxicity

S 15 .A. Outfall 002 Effluent C haracterization

1. C onduct quarterly acute toxicity testing on the final effluent for one year starting in 2 nd Quarter 2015

. Quarters means January through March, April through June, July through September, and October through December.

2. Submit a quarterly written report to E cology for one year within 45 days of sampling and starting no later than July 30, 2015

. Each subsequent report is due on April 30 th , July 30 th , October 30 th , and January 30 th of each year. Further instructions on testing conditions and test report content are in Section
G below.

3. Use a dilution series consisting of a minimum of five concentrations and a
control. The five concentrations should include the ACEC of 5.3 % effluent.

Conduct the following two acute toxicity tests on each sample:
Acute Toxi city Tests Species Method

Topsmelt 96

- hour static

renewal test Atherinops affinis EPA

- 821

- R

- 02

- 012

Mysid 48

- hour static test Americamysis bahia EPA

- 821

- R

- 02

- 012 Daphnid 48

- hour static test Ceriodaphnia dubia, EPA

- 821

- R

- 02

- 012Page 45 of 80
Permit No. WA 00 0295

Conduct the following two acute toxicity tests on each sample:
Acute Toxi city Tests Species Method

Daphnia pulex, or Daphnia magna

4. The effluent limit for acute toxicity listed in Section 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 of any species exhibits less than 65% survival in 100% effluent.

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

S 15

. B

. Outfall 002 Acute Toxicity

The effluent limit for acute toxicity at Outfall 002 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 S1. E of this permit. The ACEC for Outfall 002 equals 5.3 % effluent

. S 15

. C

. Compli ance with the Outfall 002 Effluent Limit for Acute T oxicity

Compliance with the Outfall 002 effluent limit for acute toxicity means the results of the testing specified in Section C show no statistically significant difference in
survival between the contr ol and the ACEC.

If the test results show a statistically significant difference in survival between the control and the ACEC, the Permittee must conduct the additional testing
described in Section E. The Permittee is in compliance with the requirements of
Section B if all of the additional test s required by Section E show no significant
difference in survival between the control and ACEC. If any toxicity test required by Section E shows a significant difference in survival between the control and
the AC EC then the Permittee is in violation of its WET limit.

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

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

S 15

. D

. Compliance T esting for Outfall 002 Acute T oxicity

The Permittee must:

1. Perform the acute toxicity tests with 100% effluent, the ACEC, and a control,
or with a full dilution series.Page 46 of 80
Permit No. WA 00 0295

2. Conduct quarterly acute toxicity testing on the final effluent of Outfall 002 if characterization determines that the effluent limit for acute toxicity applies. If
there a re no discharges during a quarter, the Permittee must conduct acute toxicity testing for the next available discharge event with sufficient flow

. Testing must begin by September 2016

. 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 October 30 , 2016

. Each subsequent report is due on April 30 th , July 30 th , October 30 th , and January 30 th for each of the respective
quarters of each year. Further instructions on testing conditions and test report content are in Section 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 Topsmelt 96

- hour static

renewal test Atherinops affinis EPA

- 821

- R

- 02

- 012

Mysid 48

- hour static test Americamysis bahia EPA

- 821

- R

- 02

- 012 Daphnid 48

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

- 821

- R

- 02

- 012

S 15

. E

. Response to Noncompliance with the Effluent Limit for Outfall 002 Acute
T oxicity

If a toxicity test conducted under Section D determines a statistically significant difference in response between t he ACEC and the control, using the statistical test described in Section C, the Permittee must begin additional testing within one week from the time of receiving the test results or at the next available discharge
event with sufficient flow . The Permitte e must:

1. Test the next four discharge events 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 t oxicity as described in Section C.

3. Return to the original monitoring frequency in Section D after completion of the additional compliance monitoring.

Anomalous test results: If a toxicity test conducted under Section D indicates noncompliance with the a cute toxicity limit and the Permittee believes 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 notificatio n from Ecology before completing the additional testing. The Permittee must submit the notification with the report ofPage 47 of 80
Permit No. WA 00 0295

the compliance test result and identify the reason for considering the compliance
test result to be anomalous.

If Ecology determines t hat the test result was not anomalous, the Permittee 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 additional 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 f acility records, including:

1. Operating records
2. Monitoring results
3. Inspection records
4. Spill reports
5. Weather records

6. Production records
7. Raw material purchases
8. Pretreatment records, etc.

If any toxicity test conducted under Subsection E.1. shows a statisticall y significant difference in response between the ACEC and the control, using the statistical test described in Section C., then the test result is a violation of the permit. 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)].

S 15

. F

. Testing when there is No Permit L imit for A cute T oxicity

S1 5 .F.1 Outfall 001 Acute Toxicity Testing

The Permittee must:

i. Conduct acute toxicity testing on the final effluent for Outfall 001 once in the last winter and once in the last summer prior to submission of the application for permit renewal.
ii. Submit the results to Ecology within 45 days of sampling and no
later than November 15, 2018 for the summer test and no later than May 1, 2019 for the winter test.
iii. Conduct acute toxicity testing on a series of at least five concentrations of effluent, including 100% effluent and a control.

Use each of the following species and protocols for each acute toxicity test:Page 48 of 80
Permit No. WA 00 0295

Acute Toxicity Tests Species Method Topsmelt 96

- hour static

renewal test Atherinops affinis EPA

- 821

- R

- 02

- 012

Mysid 48

- hour static test Americamysis bahia EPA

- 821

- R

- 02

- 012

S1 5 .F.2. Outfall 002 Acute Toxicity Testing

The Permittee must:

i. Conduct acute toxicity testing on the final effluent for Outfall 002 once in the last winter and once in the last summer prior to submission of the application for permit renewal.
ii. Submit the results to Ecology within 45 days o f sampling and no later than November 15, 2018 for the summer test and no later than May 1, 2019 for the winter test.
iii. Conduct acute toxicity testing on a series of at least five concentrations of effluent, including 100% effluent and a control.

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

Acute Toxicity Tests Species Method Topsmelt 96

- hour static

renewal test Atherinops affinis EPA

- 821

- R

- 02

- 012

Mysid 48

- hour static test Americamysis bahia EPA

- 821

- R

- 02

- 012 Daphnid 48

- hour static

test Ceriodaphnia dubia, Daphnia pulex, or Daphnia magna EPA

- 821

- R

- 02

- 012

S 15

. G

. Sampling and Reporting R equirements

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. In addition, the Permittee must submit toxicity test data in electronic format (CETIS export file preferred) for entry into Ecology’s database

.
2. The Permittee must collect grab samples for toxicity testing. The Permi ttee 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 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 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 Subsection C and the Ecology Publication No. WQ

- R

- 95

- 80, Laboratory Guidance andPage 49 of 80
Permit No. WA 00 0295

Whole Effluent Toxicity Test Rev iew 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 of the EPA methods li sted 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.



### S 16

. Chronic T oxicity

S1 6 .A Effluent Characterization

The Pe rmittee must characterize the wastewater discharged from Outfall 001 and Outfall 002 for chronic toxicity as specified below.

S 16

. A. 1 Outfall 001 Effluent Characterization

The Permittee must:

i. Conduct quarterly chronic toxicity testing on the final effluent for
Outfall 001 for one year starting in 2nd Quarter 2015

. Quarters means January through March, April through June, July through September, and October through December.
ii. Submit a quarterly written report to Ecology for one year within 45 days of sampling and starting no later than July 30, 2015

. Each subsequent report is d ue on April 30 th , July 30 th , October 30 th , and January 30 th for each of the respective quarters of each year

. Further instructions on testing con ditions and test report content
are in Section G below.
iii. Conduct chronic toxicity testing during effluent characterization on
a series of at least five concentrations of effluent and a control.
This series of dilutions must include the acute critical efflu ent concentration (ACEC). The ACEC equals 4.8 % effluent. The
series of dilutions should also contain the CCEC of 1.9 % effluent.

Conduct the following two chronic toxicity tests on each sample:

Saltwater Chronic Test Species Method Mysid shrimp survival and growth Americamysis bahia (formerly Mysidopsis
bahia ) EPA

- 821

- R

02

- 014

Sea urchin/ Sand dollar survival and development Strongylocentrotus purpuratus/ Dendraster
excentricus EPA/600/R

95/136

The laboratory must conduct the sea urchin and sand dollar (echinoderm) test in accordance with EPA/600/R

- 95/136 and the echinoderm development test conditions in the most recent versionPage 50 of 80
Permit No. WA 00 0295

of Ecology Publication No.WQ

- R

- 95

- 80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria . The laboratory must use whichever one of the two species that will give a valid result in each particular test.

iv. The effluent limit for chronic toxicity listed in S ection B below applies if after one year of effluent characterization any test shows a significant difference between the control and the ACEC at the 0.05 level of significance using hypothesis testing (Appendix H,
EPA/600/4

- 89/001).

v. If the limit applies, then the Permittee must immediately follow the
instr uctions in S ections B, C, D, E, and G. If the limit does not apply, then the Permittee must follow the instructions in S ections F
and G.

S1 6 .A.2 Outfall 002 Effluent Characterization

The Permittee must:

i. Conduct quarterly chronic toxicity testing on the fi nal effluent for
Outfall 002 for one year starting in 2 nd Quarter 2015 . Quarters means January through March, April through June, July through September, and October through December.
ii. Submit a quarterly written report to Ecology for one year within 45 day s of sampling and starting no later than July 30, 2015

. These dates assume 30 days after the end of the quarter). Each subsequent report is due on April 30th, July 30th, October 30th, and January 30th for each of the respective quarters of each year

. Fu rther instructions on testing conditions and test report content
are in S ection G below.

iii. Conduct chronic toxicity testing during effluent characterization
on a series of at least five concentrations of effluent and a control.
This series of dilutions must include the acute critical effluent concentration (ACEC). The ACEC equals 5.3 % effluent

. The
series of dilutions should also contain the CCEC of 3.0 % effluent.

Conduct the following chronic toxicity test on each sample:

Saltwater Chronic Test Species Method
Sea urchin/ Sand dollar survival and development Strongylocentrotus purpuratus/
Dendraster excentricus EPA/600/R

95/136

The laboratory must conduct the sea urchin and sand dollar (echinoderm) test in accordance with EPA/600/R

- 95/136 and the echinoderm development test conditions in the most recent version of Ecology Publication No.WQ

- R

- 95

- 80, Laboratory Guidance and
Whole E ffluent Toxicity Test Review Criteria. The laboratoryPage 51 of 80
Permit No. WA 00 0295

must use whichever one of the two species that will give a valid result in each particular test.

iv. The effluent limit for chronic toxicity listed in S ection B below applies if after one year of effluent characterization any test shows a significant difference between the control and the ACEC at the 0.05 level of significance using hypothesis testing (Appendix H,
EPA/600/4

- 89/001).

If the limit applies, then the Permittee must immediately follow the
instru ctions in S ections B, C, D, E, and G. If the limit does not apply, then the Permittee must follow the instructions in Sections F
and G.

S 16 .B. Effluent Limit for Chronic T oxicity

The effluent limit for chronic toxicity is:

No toxicity detected in a test concentration representing the chronic critical effluent concentration (CCEC).

S1 6 .B.1 Outfall 001 Effluent Limit for Chronic T oxicity

The CCEC means the maximum concentration of effluent during critical
conditions at th e boundary of the mixing zone, defined in Section S1. E .1 of this permit. The CCEC equals 1.9 % effluent

. S1 6 .B.2 Outfall 001 Effluent Limit for Chronic T oxicity

The CCEC means the maximum concentration of effluent during critical
conditions at the boundar y of the mixing zone, defined in Section S1. E .2 of this permit. The CCEC equals 3.0 % effluent

. S 16 .C. Compliance with the Effluent Limit for Chronic T oxicity

Compliance with the Outfall 001 and Outfall 002 effluent limit for chronic toxicity means the results of the testing specified in S ection D. show no statistically significant difference in response between the control and the CCEC.

If the test results show a statistically significant difference in surviv al between the
control and the C CEC, the Permittee must then conduct the additional testing
described in Section E. The Permittee is in compliance with the requirements of Section B if all of the additional tests required by Section E show no significant
difference in survival between the control and C CEC. If any toxicity test required by Section E shows a significant difference in survival between the control and
the C CEC then the Permittee is in violation of its WET limit

. The Perm ittee must determine the statistical significance by conducting a hypothesis test at the 0.05 level of significance (Appendix H, EPA/600/4

- 89/001). If the difference in response between the control and the CCEC is less than 20%, the Permittee must
conduct the hypothesis test at the 0.01 level of significance.Page 52 of 80
Permit No. WA 00 0295

Ecology will reevaluate the need for the chronic toxicity limit in future permits. Therefore, the Permittee must also conduct this same hypothesis test (Appendix H, EPA/600/4

- 89/001) to determine whe ther a statistically significant difference in response exists between the acute critical effluent concentration (ACEC) and the control.

S 16 .D. Compliance Testing for Chronic T oxicity

The Permittee must:

1. Perform the chroni c toxicity tests using the CCEC, the ACEC, and a control,
or with a full dilution series.

2. Conduct quarterly chronic toxicity testing on the final effluent of Outfall 001
and/or Outfall 002 if characterization determines that the effluent limit for
chronic toxicity applies. Testing must begin by September 2016 . 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 n o later than October 30, 2016

. Each subsequent report is due on April 30 th , July 30 th , October 30 th , and January 30 th for each of the respective quarters of each year

. Further instructions on testing conditions and test report content are in Section G be low.

4. Perform compliance tests using the following species and the most recent version of the following protocols

. Where more than one species is specified, the tests must be conducted on a rotating basis between the species. The laboratory must use whichever species that will give a valid result in each particular test.

The laboratory must conduct the sea urchin and sand dollar (echinoderm) test
in accordance with EPA/600/R

- 95/136 and the echinoderm development test
conditions in the most recent vers ion of Ecology Publication No.WQ

- R

- 95

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

. 4.a. Outfall 001 test species:

Saltwater Chronic Test Species Method Mysid shrimp survival and growth Americamysis bahia (formerly Mysidopsis
bahia ) EPA

- 821

- R

- 02

- 014

Sea urchin/ Sand dollar survival and development Strongylocentrotus
purpuratus /
Dendraster excentricus EPA/600/R

- 95/136

4.b. Outfall 002 test species:

Saltwater Chronic Test Species Method
Sea urchin/ Sand dollar survival and development Strongylocentrotus
purpuratus / EPA/600/R

- 95/136Page 53 of 80
Permit No. WA 00 0295

Saltwater Chronic Test Species Method
Dendraster excentricus

S 16 .E. Response to Noncompliance with the Effluent Limit for Chronic T oxicity

If a toxicity test conducted under S ection D determines a statistically significant difference in response between the CCEC and the control using the statistical test
described in S ection C, the Permittee must begin additional testing within one week from the time of receiving the test resul ts o r at the next available discharge
event with sufficient flow for Outfall 002 . The Permittee must:

1. Conduct additional testing each month for three consecutive months using the same test and species as the failed compliance test for Outfall 001 or test the next three discharge events using the same test and species as the failed compliance test for Outfa ll 002.

2. Use a series of at least five effluent concentrations and a control to determine appropriate point estimates. One of these effluent concentrations must equal the CCEC. The results of the test at the CCEC will determine compliance
with the efflu ent limit for chronic toxicity as described in Subsection B.

3. Return to the original monitoring frequency in S ection C after completion of the additional compliance monitoring.

Anomalous test results: If a toxicity test conducted under S ection D indicate s noncompliance with the chronic toxicity limit and the Permittee believes 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 test ing and wait for notification from Ecology before completing the additional 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 anomalou s.
If Ecology determines that the test result was not anomalous, the Permittee 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 chronic toxicity, then t he Permittee must complete all of the additional monitoring required in this section. Or,

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

If all of the additional testing req uired by 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:

1. Operating records
2. Monitoring results
3. Inspection recordsPage 54 of 80
Permit No. WA 00 0295

4. Spill reports
5. Weather records

6. Production records
7. Raw material purchases
8. Pretreatment records, etc.

If any toxicity test conducted under subsection E.1. shows a statistically significant difference in response between the CCEC and the control, using the
statistical test described in S ection C., then the test result is a violation of the permit. The Perm ittee must submit a Toxicity Identification/Reduction Evaluation (TI/RE) plan to Ecology within 60 days after the sample date.

S1 6 .F Testing when there is No Permit Limit for Chronic T oxicity

S1 6 .F.1 Outfall 001 Chronic Toxicity

The Permittee must:

i. Co nduct chronic toxicity testing on final effluent once in the last winter and once in the last summer prior to submission of the application for permit renewal.
ii. Submit the results to Ecology within 45 days of sampling and no
later than November 15, 2018 for the summer test and no later than May 1, 2019 for the winter test.
iii. Conduct chronic toxicity testing on a series of at least five
concentrations of effluent and a control. This series of dilutions must include the acute critical effluent concentration ( ACEC). The ACEC equals 4.8 % effluent. The series of dilutions should also
contain the CCEC of 1.9 % effluent.
iv. 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.

v. 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

Sea urchin/ Sand dollar survival and development Strongylocentrotus
purpuratus /
Dendraster excentricus EPA/600/R

- 95/136

The laboratory must conduct the sea urchin and sand dollar (echinoderm) test
in accordance with EPA/600/R

- 95/136 and the echinoderm development test conditions in the most recent version of Ecology Publication No. WQ

- R

- 95

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

.Page 55 of 80
Permit No. WA 00 0295

The laboratory must use whichever one of the two species that will give a valid result in each particular test.

S1 6 .F.2. Outfall 002 Chronic Toxicity

The Permittee must:

i. Conduct chronic toxicity testing on final effluent once in the last winter and once in the last summer prior to submission of the application for permit renewal.
ii. Submit the results to Ecology within 45 days of sampling and no later than November 15, 2018 for the summer test and no later than May 1 , 2019 for the winter test.
iii. Conduct chronic toxicity testing on a series of at least five
concentrations of effluent and a control. This series of dilutions must include the acute critical effluent concentration (ACEC). The ACEC equals 5.3% effluent. The series of dilutions should also
contain the CCEC of 3.0% effluent.
iv. 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.

v. 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

Sea urchin/ Sand dollar survival and development Strongylocentrotus
purpuratus /
Dendraster excentricus EPA/600/R

- 95/136

The laboratory must conduct the sea urchin and sand dollar (echinoderm) test
in accordance with EPA/60 0/R

- 95/136 and the echinoderm development test conditions in the most recent version of Ecology Publication No. WQ

- R

- 95

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

. The laboratory must use whichever one of the two species that will give a valid result in each particular test.

S 16

. G

. Sampling and Reporting R equirements

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. In addition, the Permittee must submit toxicity test data in electronic format (CETIS export file preferred) for entry into Ecology’s database.Page 56 of 80
Permit No. WA 00 0295

2. The Permittee must collect grab samples for toxicity testing . The Permi ttee 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 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 Publication No. WQ

- R

- 95

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

.
4. All toxici ty 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 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.

5. The laboratory must use control water and dilution water meeting the requirements of the EPA methods listed in Subs 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.



### S1 7

. Secondary Wastewater Treatment System Treatment Efficiency Stud y

S1 7 .A Secondary Wastewater Treatment System ( SEC, formerly SWTS ) Efficiency Study Plan

The Permittee shall review and update , as necessary, the Secondary Wastewater Treatment System Eff

iciency Study Plan dated December 2007. The plan must
be submitted to Ecology for review no later than August 1, 2015

. The study plan shall include, at a minimum:

1. A sampling and analysis plan that includes a minimum of six 24

- hour time based composite samples of influent and effluent collected on six separate days repre senting normal operations (when the wet scrubber system and the SWTS are in relatively steady state, i.e. no peak flows, upsets, or maintenance turnarounds). Each sample shall be analyzed for TSS, aluminum, fluoride, free cyanide, and pH. The timing of s ample collection shall be such that each of the effluent samples corresponds o the upstream influent sample and the resultant analytical results can be effectively used to estimate removal efficiencies across the S EC

.
2. A plan for monitoring and recording th e flow through the system at the time of sampling. The flow monitoring shall be conducted to provide information on how the system operates under different hydraulic or pollutant loading rates. Acceptable methods of monitoring shall include:Page 57 of 80
Permit No. WA 00 0295

in

- pipe mete ring, or other commonly used engineering methods approved by Ecology.

3. A flow diagram which illustrates the locations of the influent and effluent sampling points. The flow diagram shall identify all extraneous
wastewater streams to and from the treatment system, including recycle streams. The sample points shall be selected to be representative of each wastewater stream without the influence of recycle streams.

S1 7 .B Secondary Wastewater Treatment System Efficiency Study Engineering Report

The Permitte e must conduct the treatment efficiency study of the SWTS within 90 days of Ecology’s approval of the plan. The Permittee must submit a n engineering report detailing the findings of the study within 120 days of completi ng the study.

The engineering report must contain the following information:

1. A schematic of the treatment unit.

2. The last two years of flow data through the treatment units.

3. Design data and sizing calculations for each unit in the wastewater
treatment system.

4. An analysis of the current treatment and removal efficiencies for TSS, aluminum, fluoride, and free cyanide.

5. The analysis must address anticipated changes proposed for the Permittee’s operations during the next permit term that may affect the wastewater treatment system capacity. The report must include a discussion of any production increases, modifications to process units, etc., that could potentially cause an increase in hydraulic or pollutant loading to the wastewater treatment facility.



### S1 8 . Anode Contact Cooling Water AKART Evaluation

The Permittee must determine if the current treatment system for the d irect contact anode cooling water in the Carbon Plant provides all known, available and reasonable methods of prevention, control, and treatment (AKART) for b enzo

- a

- pyrene (B(a)P), antimony, nickel, aluminum, and fluoride. The AKART analysis must consist of an economic analysis, an environmental analysis, and an industry analysis of wastewater treatment technologies for the anode contact cooling water. If the Permittee eliminates the anode contact cooling wastewater stream from discharge to Outfall 001, t he Permittee may submit documentation demonstrating that the discharge has been eliminated in lieu of performing the AKART analysis

. The Permittee must submit a report that is stamped by a licensed professional engineer with the results of the analysis o r documentation demonstrating that the discharge has
been eliminated no later than February 1, 2016

. If the Permittee is required to submit a
report, t he report must include the following:Page 58 of 80
Permit No. WA 00 0295

1. Identification of all known, available, and reasonable wastewater treatment technologies for the anode contact cooling water wastewater stream.

2. An economic analysis in accordance Chapter IV of Ecology’s Water Quality Programs Permit Writer’s Manual (Publication no. 92

- 109).

3. An environmental analysis that addresses the reduction in pollutants identifie d above discharged to the receiving water and potential environmental impacts associated with implementation of the wastewater treatment technologies.

4. An industry analysis that reviews the standard treatment technology an d practices used by comparable industrial facilities and their applicability to the Permittee.

5. If the evaluation demonstrates that the Permittee is not providing AKART for the anode contact cooling water, the report must include the proposed upgrades or modifications to the wastewater treatment system that will be implement ed to meet the AKART standard and a schedule for implementing the proposed upgrades or
modifications.



### S 19 . Ground Water Impact Study

Permits issued by Ecology must be conditioned in s uch a manner so as not to allow violations of the Ground Water Quality Standards (Chapter 173

- 200 WAC). The effect of any discharge through the unlined native clay bottom of the sanitary plant lagoon on ground water cannot be determined without further in vestigation. To determine what this effect may be, the Permittee must:

1. Conduct a Ground Water Impact Study within 180 days of Ecology’s approval of the Ground Water Impact Study Plan submitted by In talco dated February 26,
2010.
2. Prepare and submit a repor t detailing the results of the ground water impact study to Ecology for review and approval within 120 days of completing the study. The report must contain a schedule for installing groundwater wells and a monitoring plan if the results of the study indi cate that there is a potential for the wastewater to impact ground water.
3. Guidance for preparation of monitoring plans is provided in Ecology’s Implementation Guidance for the Ground W ater Quality Standards (Publication
#96

- 02, April 1996). Existing info rmation on hydrogeologic conditions can be used if it has been obtained within the past five years and the information is in accordance with the guidance.



### S 2 0 . Outfall 011 and Outfall 012 BMP Eff ectiveness Study

The Permittee is required to collect storm water generated from areas impacted by industrial activity and provide all known, available, and reasonable methods of prevention, control, and treatment (AKART) prior to discharging the stormwater. The Permittee must demonstrate that AKART is being provi ded for the discharges from Outfall 011 and 012.Page 59 of 80
Permit No. WA 00 0295

1. The Permittee must prepare a best management practices (BMP) eff ectiveness study plan and schedule for Outfalls 011 and 012 and submit it to Ecology for review and approval by August 1, 2016 . The study plan must include, at a minimum:

a. A description of the potential sources of pollution for the stormwater that is discharged from Outfall 011 and Outfall 012.

b. An assessment of the containment area for the middle and southern portions of the alumina silo storage area. This assessment must include the integrity of the curbing surrounding the area and potential low spots that might collect
stormwater and overflow the curbing.

c. A description of current BMPs that have been implemented to prevent pollution in the stormwater discharged from Outfall 011 and Outfall 012

. d. An evaluation of safe, accessible, and representative sampling locations for
Outfall 011 and Outfal l 012 and identification of new monitoring locations for the
two outfalls

.
2. The Permittee must collect monthly grab samples from the new monitoring locations
for Outfalls 011 and 012 beginning within 60 days of Ecology’s approval of the
locations and no lat er than December 3 1, 2016

. The samples must be analyzed for TSS, aluminum, and fluoride. The results shall be reported in the monthly DMR.

After one year of testing at Outfalls 011 and 012, the Permittee may petition Ecology in writing to reduce or eli minate this monitoring.

3. The Permittee shall submit a report detailing the findings of the study to Ecology within 120 days of completion of the study. The report must include the following
information:

a. Recommended repairs or BMPs to address containment is sues at the middle and southern portions of the alumina silo storage area.

b. An evaluation of the BMPs that have been implemented and whether additional BMPs are necessary to provide all know, available, and reasonable methods of prevent, control, and treatm ent (AKART) for the stormwater.

c. A schedule of additional or improved BMP implementatio n, if deemed necessary by 3.b. and 3.c.



## General Conditions

G1. Signatory R equirements

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

a. In the case of corporations, by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means:Page 60 of 80
Permit No. WA 00 0295

 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 facility 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 w ith 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 assig ned 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 pr incipal executive officer or ranking elected official.

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 Ecology 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 authorization 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 equivale nt responsibility, or an individual or position having overall responsibility for environmental matters. (A duly authorized representative may thus be either a named individual or any individual occupying a named position.)

3. Changes to authorization. If a n 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 su bmitted to Ecology prior to or together with any reports, information, or applications to be signed by an authorized representative.

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

“I certify under pe nalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure thatPage 61 of 80
Permit No. WA 00 0295

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 penaltie s for submitting false information, including the possibility of fine and imprisonment for knowing violations.”



### G2. Right of Inspection and E ntry

The Permittee must allow an authorized representative of Ecology, upon the presentation
of credentials and suc h other documents as may be required 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, an y records required to be kept under 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. To sample or monitor, at reasonable 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 A ctions

This permit may be modified, revoked and reissued, or terminated either at the request of any in terested person (including the P ermittee) 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, 122.64 or WAC 173

- 220

- 150 according to the procedures 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 relevant facts.

c. A material change in quantity or type of waste disposal.

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 entr y as required in RCW 90.48.090.Page 62 of 80
Permit No. WA 00 0295

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 per mitted 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 pretreatme nt program into a municipality’s permit.

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

a. When cause exists for termination for reasons listed in 1.a through 1.g of this section, and Ecology determines that modification or revocation and reissuance is 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 wil l not be revoked and reissued after the effective date of the transfer except upon the request of the new
Permittee.



### G4. Reporting Planned C hanges

The Permittee must, as soon as possible, but no later than one hundred eighty (180) days prior to the propose d changes, give notice to Ecology of planned physical alterations or additions to the permitted facility, production increases, or process modification which
will result in:

1. The permitted facility being determined to be a new source pursuant to 40 CFR
122. 29(b)

.
2. A significant change in the nature or an increase in quantity of 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 exi sting application, along with required 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 n ew or increased discharge in excess of permit limits or not specifically authorized by this permit constitutes a violation.Page 63 of 80
Permit No. WA 00 0295



### G5. Plan Review R equired

Prior to constructing or modifying any wastewater control facilities, an engineering report and detailed pl ans and specifications must be submitted 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 unl ess a shorter time is approved by Ecology. Facilities must be constructed and operated in accordance with the approved plans.



### G6. Compliance with other Laws and S tatutes

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



### G7. Transfer of this P ermit

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

1. Transfers by Modification Except as provided in paragraph ( 2 ) below, this permi t 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 suc h other requirements as may be necessary under the Clean Water Act.

2. Automatic Transfers This permit may be automatically transferred to a new Permittee if:

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

b. T he notice includes a written agreement between the existing and new Permittee containing a specific date transfer of permit responsibility, coverage, and liability
between them.

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 under 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

agreemen t.



### G8. Reduced Production for C ompliance

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 a lternative 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.Page 64 of 80
Permit No. WA 00 0295



### G9. Removed S ubstances

Collected screenings, grit, solids, s ludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters must not be resuspended or reintroduced to the final effluent stream for discharge to state waters.



### G10. Duty to Provide I nformation

The Permittee mu st 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 a lso submit to Ecology upon request, copies of records required to be kept by this permit.



### G11. Other R equirements of 40 CFR

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



### G12. Additional M onitoring

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



### G13. Payment of F ees
The Permittee must submit payment of fees associated with this permit as assessed by Ecology.



### G14. Penalties for Violating Permit C onditions

Any person who is found guilty 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.

Any person who vi olates the terms and conditions of a waste discharge permit may incur, in addition to any other penalty as provided by law, a civil 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 distinct violation.



### G15. Upset

Definition

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

- based permit effluent limits because of factors beyond the reasonable control of the Permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatmentPage 65 of 80
Permit No. WA 00 0295

facilities, inadequ ate 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 properly signed, contemporaneous operating logs, or other relevant evidence
that:

1. An upset occurred and that the Permittee can ide ntify the cause(s) of the upset.

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

3. The Permittee submitted notice of the upset as required in Special Condition S3. F

.
4. The Permittee complied with any remedial measures required unde r S3. F of this permit.

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



### G16. Property R ights

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



### G17. Duty to C omply

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 d enial of a permit renewal application.



### G18. Toxic P ollutants

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 est ablish those standards or prohibitions, even if this permit has not yet been modified to incorporate the requirement.



### G19. Penalties for T ampering

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.Page 66 of 80
Permit No. WA 00 0295



### G20. Reporting Re quirements Applicable to Existing Manufacturing, Commercial, Mining, and Silvicultural D ischargers

The Permittee belonging to the categories of existing manufacturing, commercial, mining, or silviculture must notify Ecology as soon as they know or have rea son to believe:

1. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic pollutant which is not limited in this permit, if that discharge will exceed the highest of the following “notification levels:”

a. One hundred micrograms per liter (100  g/L).

b. Two hundred micrograms per liter (200  g/L) for acrolein and acrylonitrile; five hundred micrograms per liter (500  g/L) for 2, 4

- dinitrophenol and for 2

- methyl

4, 6

- dinitrophenol; and one milligram per liter (1 mg/L) for antimony.

c. Five (5) times the maximum concentration value reported for that pollutant in the permit application in accordance with 40 CFR 122.21(g)(7).
d. The level established by the Director in accordance with 40 CFR 122.44( f).

2. That any activity has occurred or will occur which would result in any discharge, on a

non

- routine or infrequent basis, of a toxic pollutant which is not limited in this permit, if that discharge will exceed the highest of the following “notification l evels:”

a. Five hundred micrograms per liter (500  g/L).
b. One milligram per liter (1 mg/L) for antimony.

c. Ten (10) times the maximum concentration value reported for that pollutant in the permit application in accordance with 40 CFR 122.21(g)(7).
d. The level established by the Director in accordance with 40 CFR 122.44(f).



### G2 1

. Compliance S chedules

Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this permit must be

s ubmitted no later than fourteen (14) days following each schedule date.Page 67 of 80
Permit No. WA 00 0295



## Appendix A

List of Pollutants w ith Analyt ical Methods, Detection Limits a nd Quantitation Levels

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 levels, 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 re port 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 m atrix

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

When the 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 several additional polynuclear aromatic hydrocarbons (PAHs). The Water Quality Program added several PAHs to the list of base neut rals below from Ecology’s Persistent Bioaccumulative Toxics (PBT) List. It only added those PBT parameters of interest to Appendix A that did not increase the overall cost of analysis unreasonably.

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

- detects” in permit

required monitoring and to measure effluent concentrations near or below criteria values where possible at a
reasonable cost.



### CONVENTIONAL PARAMETERS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

Biochemical Oxygen Demand SM5210

- 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 SM5310

- B/C/D 1 mg/L

Total Suspended Solids SM2540

- D 5 mg/L

Total Ammonia (as N) SM4500

- NH3

- B and 20Page 68 of 80
Permit No. WA 00 0295

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

C/D/E/G/H

Flow Calibrated device

Dissolved oxygen SM4500

- OC/OG 0.2 mg/L

Temperature (max. 7

- day avg.) Analog recorder or Use
micro

- recording devices
known as thermistors 0.2o C

pH SM4500

- H + B N/A N/A



### NONCONVENTIONAL PARAMETERS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

Total Alkalinity SM2320

- B 5 mg/L as CaCO3

Chlorine, Total Residual SM4500 Cl G 50.0

Color SM2120 B/C/E 10 color units

Fecal Coliform SM 9221E,9222 N/A Specified in
method

- sample aliquot dependent

Fluoride (16984

- 48

- 8) SM4500

- F E 25 100

Nitrate + Nitrite Nitrogen (as N) SM4500

- NO3

- 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 1664 A or B 1,400 5,000Page 69 of 80
Permit No. WA 00 0295

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

Extractable Material)

Salinity SM2520

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

Settleable Solids SM2540

- F 500 (or 0.1 mL/L)

Sulfate (as mg/L SO 4 ) SM4110

- B 0.2 mg/L

Sulfide (as mg/L S) SM4500

- S 2 F/D/E/G 0.2 mg/L

Sulfite (as mg/L SO 3 ) SM4500

- SO3B 2 mg/L

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

- sample aliquot dependent

Total dissolved solids SM2540 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 250Page 70 of 80
Permit No. WA 00 0295

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

Tin, Total (7440

- 31

- 5) 200.8 0.3 1.5

Titanium, Total (7440

- 32

- 6) 200.8 0.5 2.5



### PRIORITY POLLUTANTS

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/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

- 41

- 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 0.0002 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 10Page 71 of 80
Permit No. WA 00 0295

Pollutant & CAS No. (if available) Recommended Analytical Protocol Detection (DL) 1 μg/L unless specified Quantitation

Level (QL) 2 μg/L unless specified

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

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 4.0

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

VOLATILE COMPOUNDS

Acrolein (107

- 02

- 8) 624 5 10Page 72 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

VOLATILE COMPOUNDS

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 2.0Page 73 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

VOLATILE COMPOUNDS

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

Toluene (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 74 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs)

Acenaphthene (83

- 32

- 9) 625 0.2 0.4

Acenaphthylene (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 0.6Page 75 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs)

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 10.0

Dibenzo (a,j)acridine ( 224

- 42

- 0) 610M/625M 2.5 10.0

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 76 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/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) 1625B 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 1.0Page 77 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs)

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

μg/L unless specified Quantitation

Level (QL) 2

μg/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/L

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

μg/L unless specified Quantitation

Level (QL) 2

μg/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 0.05Page 78 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

PESTICIDES/PCBs

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 0.5Page 79 of 80
Permit No. WA 00 0295

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

μg/L unless specified Quantitation

Level (QL) 2

μg/L unless specified

PESTICIDES/PCBs

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 det ermined by the procedure given in 40 CFR part 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 poi nt 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 roun ding 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 o bjectives of the intended purpose. ( Report of the Federal 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: First, filter 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 p er 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: cis

1, 3

- dichlorpropropene (10061

- 01

- 5) and t rans

- 1, 3

- dichloropropene (10061

- 02

- 6).

7. Total Benzofluoranthenes

– Be cause Benzo(b)fluoranthene, Benzo(j)fluoranthene and Benzo(k)fluoranthene co

- elute you may report these three isomers as total benzofluoranthenes.

8. Chlordane

– You may report alpha

- chlordane (5103

- 71

- 9) and gamma

- chlordane (5103

- 74

- 2) in place of
chlordane (57

- 74

- 9). If you report alpha and gamma

- chlordane, the DL/PQLs that apply are
0.025/0.050.Page 80 of 80
Permit No. WA 00 0295

9. PCB 1016 & PCB 1242

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