Page 2 of 80

Permit No. WA000295

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 and Outfall 012 Stormwater Discharges............................................................12

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

S1.E. Mixing Zone Authorization...................................................................................................15

S2. Monitoring Requirements.............................................................................................. 17

S2.A.1Monitoring 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 Submittals 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. Maintaining 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.............................................................................................39
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Permit No. WA000295

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. Fugitive Alumina Pollution Prevention Plan................................................................ 42

S12. Sediment Monitoring...................................................................................................... 43

S12.A.Sediment Data Report ...........................................................................................................43

S13. Outfall Evaluation........................................................................................................... 43

S14. Certified 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 and 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. Right of Inspection and Entry ....................................................................................... 61

G3. Permit Actions................................................................................................................. 61

G4. Reporting Planned Changes........................................................................................... 62

G5. Plan Review Required .................................................................................................... 63

G6. Compliance with other Laws and Statutes................................................................... 63

G7. Transfer of this Permit................................................................................................... 63
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Permit No. WA000295

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. Payment 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................................................................................................................................... 67
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Permit No. WA000295

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, 2016

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

S9 Spill Control Plan Update 1/permit cycle February 1, 2016

S9 Spill Control Plan Modification As necessary

S10.A Stormwater Pollution Prevention 

Plan (SWPPP) Update

1/permit cycle August 1, 2015 

S10.B SWPPP Modifications As necessary

S11 Fugitive Alumina Pollution 

Prevention Plan

1/permit cycle August 1, 2016

S12.A Sediment Data Report 1/permit cycle

S13 Outfall Evaluation 1/5 years October 1, 2016

S15.A Outfall 002 Acute Toxicity: 

Characterization Written Report

Quarterly for one year July 30, 2015

S15.D Outfall 002 Acute Toxicity: 

Compliance Monitoring Reports

Quarterly, if required October 30, 2016, if 

applicable

S15.E Outfall 002 Acute Toxicity: 

Response to noncompliance 

reporting

As necessary
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Permit No. WA000295

Permit 

Section

Submittal Frequency First Submittal Date

S15.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 

S16.A Outfalls 001 and 002 Chronic 

Toxicity: Characterization 

Report

Quarterly for one year July 30, 2015

S16.D Outfalls 001 and 002 Chronic 

Toxicity: Compliance 

Monitoring Reports

Quarterly, if required October 30, 2016, if 

applicable

S16.E Outfalls 001 and 002 Chronic 

Toxicity: Response to 

noncompliance reporting

As necessary

S16.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 necessary
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Permit No. WA000295

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 necessary
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Permit No. WA000295

Special Conditions

S1. Discharge Limits 

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 Discharges

The discharge of any of the following pollutants more frequently than, or at 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 conditions:

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 58c

/68d/68elbs/day 140c/198d/296elbs/day

Aluminum 5.9c/9.0d/10.3elbs/day 13.4c/20d/30elbs/day

Free Cyanide (WAD) <12 μg/l 12 μg/l

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

Antimony 1.9c/2.9d/4.3elbs/day 4.2c/6.4d/9.6elbs/day

Nickel 0.8c/1.2d/1.9elbs/day 1.2c/1.8d/2.7elbs/day

Oil and Grease 5 mg/l 10 mg/l

Minimum Maximum 

pH f6.0 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. 
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Permit No. WA000295

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) (BOD5)

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, BOD5 and TSS

65% c, d N/A

Minimum Maximum 

pH 6.0 standard units 9.0 standard units

Parameter Monthly Geometric Mean Weekly Geometric Mean

Fecal Coliform Bacteria e200 organisms/100 400 organisms/100 mL
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Permit No. WA000295

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 given 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 c6.0 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.
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Permit No. WA000295

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 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.

d 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. 

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 amount 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 intake 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 Discharges 

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: Outfall 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/L
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Permit No. WA000295

Effluent Limits: Outfall 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 d5 mg/L 10 mg/L

Minimum Maximum 

pH e6.0 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 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.

d Compliance with this oil and grease limit can be demonstrated with the oil and grease 

sampling required for Outfall 001 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 

Effluent Limits: Outfalls 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 limits or action levels for these outfalls. See Special Condition S20 – Outfall 

011 and Outfall 012 BMP Effectiveness Study.

S1.D. Discharge Action Levels

Action Level values are not effluent limitations. Discharges that fail 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 specific 
Page 13 of 80

Permit No. WA000295

corrective 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 system, 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 

parameters demonstrated 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 water 

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.
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Permit No. WA000295

S1.D.2. Secondary Wastewater Treatment System Discharge

Secondary Wastewater Treatment System Discharge

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 the 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 the semi-annual Action Level Exceedance Report required 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 15th and July 15th of each year. The semi-annual reports shall 

represent the preceding 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 status of any outstanding corrective 

action(s).

The Permittee shall include the following information with each Action Level 

Exceedance Report:

a. Identify the action level(s) that triggered the need for corrective 

action review and the number of times the action level was 

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.
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Permit No. WA000295

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 removal 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 (Monitoring Point 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 state 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 Ecology 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 pollutants 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 Permit Condition S3.A.

S1.E. Mixing Zone Authorization

S1.E.1 Mixing Zone for Outfall 001

The following paragraphs define the maximum boundaries of the mixing 

zones:

Chronic mixing zone
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Permit No. WA000295

The mixing zone is a circle with radius of 216 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 meters)

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 Criteria 52

Human Health Criteria - Carcinogen 105

Human Health Criteria - Noncarcinogen77

S1.E.2 Mixing Zone for Outfall 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 (dilution factor) for Outfall 002

Acute Aquatic Life Criteria 19

Chronic Aquatic Life Criteria 33

Human Health Criteria - Carcinogen 48

Human Health Criteria - NonCarcinogen48
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Permit No. WA000295

S2. Monitoring Requirements

S2.A.1 Monitoring Schedule

The Permittee must monitor in accordance with the following schedule and the 

requirements specified in Appendix A.

Parameter Units & 

Speciation

Minimum 

Sampling 

Frequency

Sample Type

(1) 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 b24-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 eμg/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 idegrees 

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 m
Page 18 of 80

Permit No. WA000295

Parameter Units & 

Speciation

Minimum 

Sampling 

Frequency

Sample Type

Biochemical Oxygen 

Demand (BOD5)

milligrams/L 

(mg/L)

2/month n24-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 (BOD5)

milligrams/L 

(mg/L)

2/month n, aa 24-hr composite d

lbs/day Monthly Calculated a

BOD5 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 d
Page 19 of 80

Permit No. WA000295

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 

S15.F

Grab f

Chronic Toxicity 

Testing

N/A Quarterly, first four 

quarters h

Grab f

Chronic Toxicity 

Testing 

N/A Quarterly, if 

required by S16.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 S15 and S16.

(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, 

Cyanidee, and Total 

Phenols

μg/L; ng/L for 

mercury

Annually Grab f
Page 20 of 80

Permit No. WA000295

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 S15.D h, t

Grab f

Acute Toxicity 

Testing

N/A Two times/permit 

term as specified by 

Special Condition 

Grab f
Page 21 of 80

Permit No. WA000295

Parameter Units & 

Speciation

Minimum 

Sampling 

Frequency

Sample Type

S15, if required by 

S15.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 S16.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 S15 and S16.

(9) Outfall 011 xStormwater 

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 xStormwater

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 d
Page 22 of 80

Permit No. WA000295

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 g24-hr composite d

lbs/day Semi-Annual g Calculated a

Nickel mg/l Semi-Annual g24-hr composite d

lbs/day Semi-Annual g Calculated a

Arsenic mg/L Semi-Annual g24-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

(15) Sediment Study
Page 23 of 80

Permit No. WA000295

Parameter Units & 

Speciation

Minimum 

Sampling 

Frequency

Sample Type

As specified in Special Condition S12.

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 samples 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, net loading 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 shall 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 temporary 

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 conducted 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 - if 

sufficient 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 uninterrupted 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 possible.

k The Permittee must report the instantaneous maximum and minimum pH monthly. Do 
Page 24 of 80

Permit No. WA000295

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 calendar 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 removal of BOD5 and TSS using the above equation. 

q Report a numerical value for fecal coliforms following 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 point 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 sampling was completed. 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 S15.D or S16.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 4th year of the permit, the PCBs and pesticides listed in 

Appendix A are not required 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 once 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 Outfall 
Page 25 of 80

Permit No. WA000295

Parameter Units & 

Speciation

Minimum 

Sampling 

Frequency

Sample Type

002 sampling requirements. 

x Refer to Permit Condition S20 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 frequency for this parameter has been reduced based on exemplary 

performance. To remain eligible for these reductions, the Permittee may not have any 

violations of effluent limitations or exceedance of the action level for this parameter or 

fail to submit DMRs. 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 new 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 12 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. During 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. Upon 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 a24-hr composite b

lbs/day Monthly Calculated c

Aluminum mg/L Monthly a24-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 b
Page 26 of 80

Permit No. WA000295

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 within 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 are 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 least 48 hours after the previous 

composite sample was collected.

S2.B. Sampling and Analytical Procedures

Samples and measurements taken to meet the requirements of this permit must 

represent the volume and nature of the monitored parameters, including 
Page 27 of 80

Permit No. WA000295

representative 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 composite 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 (oC) 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 Procedures for the Analysis of Pollutants contained in 40 CFR 

Part 136 (or as applicable in 40 CFR subchapters N [Parts 400–471] or O [Parts 

501-503]) unless otherwise specified in this permit. Ecology may only specify

alternative methods for parameters without limits and for those parameters 

without an EPA approved test method in 40 CFR Part 136.

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

The Permittee must:

1. Select and use appropriate flow measurement, field measurement, and 

continuous monitoring devices and methods consistent with accepted 

scientific practices.

2. Install, calibrate, and maintain these devices to ensure the accuracy of the 

measurements is consistent with the accepted industry standard and the 

manufacturer’s recommendation for that type of device.

3. Calibrate continuous monitoring instruments weekly. 

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 must calibrate the continuous pH monitoring probes using a 2 

point calibration with standard pH buffers or per the manufacturer’s 

recommendations. 

5. Use field measurement 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 least one 

calibration per year.

8. Maintain calibration records for at least three years.
Page 28 of 80

Permit No. WA000295

S2.D. Laboratory Accreditation

The Permittee must ensure that all monitoring data required by Ecology for permit 

specified parameters is prepared by a laboratory registered or accredited under the 

provisions of chapter 173-50 WAC, Accreditation of Environmental Laboratories. 

Flow, temperature, settleable solids, 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 Monitoring

The Permittee may request a reduction of the sampling frequency after twelve 

(12) months of monitoring. Ecology will review each request and at its discretion 

grant the request when it reissues the permit or by a permit modification.

The Permittee must:

1. Provide a written request.

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

3. Clearly state the justification for the reduction. 

S3. Reporting and Recording Requirements

The Permittee must monitor and report in accordance with the following conditions. 

Falsification of information submitted to Ecology is a violation of the terms and 

conditions of this permit.

S3.A. Reporting

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

Permittee must:

1. Summarize, report, and submit monitoring data obtained during each 

monitoring period on the electronic Discharge Monitoring Report (DMR) 

form provided by Ecology within 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) included on the electronic form. 

To find out more information and 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 level 

(e.g. < 2.0) on the DMR. If the method used did not meet the minimum DL 
Page 29 of 80

Permit No. WA000295

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 comments 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. Report that the parameter is non-detect if the lab did not detect the 

parameter in any sample for the reporting period.

6. Report single-sample grouped parameters (for example priority pollutants, 

PAHs) on the WQWebDMR 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 WQWebDMR. The contract laboratory reports 

must also include information on the chain of custody, QA/QC, and 

confirmation that the lab is accredited for each parameter tested.

8. Ensure that DMRs are electronically submitted no later than the dates 

specified below, unless otherwise 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 15th day of the following month. 

b. Submit quarterly DMRs, unless otherwise specified in the permit, by 

the 15th 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 WQWebDMR as 

required in Special Condition S2 by August 1, 2019. 
Page 30 of 80

Permit No. WA000295

11. Submit reports to Ecology online using Ecology’s electronic 

WQWebDMR submittal forms (electronic DMRs) as required above. 

Send paper reports to Ecology at:

Water Quality Permit Coordinator

Department of Ecology

Industrial Section

PO Box 47600

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 Retention

The Permittee must retain records of all monitoring information for a minimum of 

three (3) years. Such information must include all calibration and maintenance 

records and all original recordings for continuous monitoring instrumentation, 

copies of all reports 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 Permittee or when requested by Ecology. 

S3.D. Recording of Results

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

information:

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

2. The individual who performed the sampling or measurement

3. The dates the analyses were performed

4. The individual who performed the analyses

5. The analytical techniques or methods used

6. The results of all analyses
Page 31 of 80

Permit No. WA000295

S3.E. Additional Monitoring by the Permittee

If the Permittee monitors any pollutant 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 Violations

The Permittee must take the following actions when it violates or is unable to 

comply with any permit condition: 

1. Immediately take action to stop, contain, and cleanup 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 reporting

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. WA000295

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 discharge 

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 days

The Permittee must also submit a written report within five days of the time 

that the Permittee becomes aware of any reportable event under subparts a or 

b, above. The report must contain: 

1. A description of the noncompliance and its cause. 

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

3. The estimated time the Permittee expects the noncompliance to continue if 

not yet corrected.

4. Steps taken or planned to reduce, eliminate, and prevent recurrence of the 

noncompliance.

5. If the noncompliance involves an overflow prior to the treatment works, 

an estimate of the quantity (in gallons) of untreated overflow.

d. Waiver of written reports

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

case-by-case basis upon request if the Permittee 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 relieve 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 Submittal

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

a. Spills of Oil or Hazardous Materials

The Permittee must report a spill of oil or hazardous materials in accordance 

with the requirements of RCW 90.56.280 and chapter 173-303-145. You can 

obtain further instructions at the 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. Maintaining a Copy of this Permit

The Permittee must keep a copy of this permit at the facility and make it available 

upon request to Ecology inspectors.

S4. Operation and Maintenance

The Permittee must, at all times, properly operate and maintain all facilities 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 logbooks (paper or 

electronic), adequate laboratory controls, and appropriate quality assurance procedures. 

This provision of the permit requires the Permittee to operate backup or auxiliary 

facilities or similar systems only when the operation is necessary to achieve compliance 

with the conditions of this permit.

The Permittee must schedule any facility maintenance, which might require interruption 

of wastewater treatment and degrade effluent quality, during non-critical water quality 

periods and carry this maintenance out according to the approved O&M manual or as 

otherwise approved by Ecology.

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

a. O&M Manual 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 Manual at the permitted facility.

4. Follow the instructions and procedures of this manual.
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b. O&M Manual 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 of 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 of 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 production 

levels used in developing these limits.
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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 employed 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 Procedures

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 that 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, or 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, unanticipated, 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 exist, such as:
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 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 facility 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 potential 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 which 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 preferred 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 quality 

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 extent 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 consider the following prior to issuing an administrative 

order for this type of bypass:
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Permit No. WA000295

 If the bypass is necessary to perform construction or 

maintenance-related activities essential to meet the requirements of 

this permit.

 If feasible alternatives to bypass exist, such as the use of auxiliary 

treatment facilities, retention of untreated wastes, stopping production, 

maintenance during normal periods of equipment down time, or 

transport of untreated wastes to another treatment facility.

 If the Permittee planned and scheduled the bypass to minimize adverse 

effects on the public and the environment.

After consideration of the above and the adverse effects of the proposed bypass 

and any other relevant factors, Ecology will approve or deny the request. Ecology 

will give the public an opportunity to comment on bypass incidents of significant 

duration, to the extent feasible. Ecology will approve a request to bypass by 

issuing an administrative order under RCW 90.48.120. 

S5. Solid Wastes

S5.A. Solid Waste Handling

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

manner as to prevent its entry into state ground 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 leachate to cause violations of the State Surface Water 

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

Standards, Chapter 173-200 WAC. The Permittee must apply for a permit or 

permit modification as may be required for such discharges to state ground or 

surface waters.

S5.C. Solid Waste Control Plan

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 Permittee 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. 

S6. Application for Permit Renewal or Modification for Facility Changes

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.
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Permit No. WA000295

S7. Facility Loading

S7.A. Design Criteria

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 adjusting for 

rainfall

S7.B. Stormwater Treatment Design Criteria

As specified in Permit Condition S4.B, storm 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 water pond’s design capacity.

S8. Non-Routine and Unanticipated Discharges

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

non-routine wastewater to Outfall 001 and non-stormwater discharges to the 

stormwater treatment pond on a case-by-case basis if approved by Ecology. Prior to 

any such discharge, the Permittee must contact Ecology and at a minimum provide 

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.
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Permit No. WA000295

3. The Permittee must limit the discharge 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. Spill Control Plan

S9.A. Spill Control Plan Submittals and Requirements

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. 

S9.B. Spill Control Plan Components

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.

S10. Stormwater Pollution Prevention 

The Permittee must maintain and follow the Stormwater Pollution Plan (SWPPP) for the 

permitted facility. The Pollution Prevention Plan must specify the Standard Operating 
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Permit No. WA000295

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 consistent 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 contained in stormwater technical manuals 

approved by Ecology.

S10.A Stormwater Pollution Prevention Plan (SWPPP) Update

The Permittee must update its SWPPP in accordance with the guidance document entitled 

Guidance Manual for Preparing/Updating a Stormwater 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 the 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 stormwater drainage areas for each stormwater discharge point offsite (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) associated 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).
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Permit No. WA000295

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. 

 Include 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.

S10.B SWPPP Modifications 

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 least 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 applicable portions of plans prepared for other 

purposes. Plans or portions of plans incorporated into an SWPPP become 

enforceable requirements of this permit. 

S10.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 description 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 associated 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, etc. 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 as 
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Permit No. WA000295

domestic wastewater, 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. 

S10.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 summarizing 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 noncompliance. 

S11. Fugitive Alumina Pollution Prevention Plan 

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 Ecology. 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 that would likely generate fugitive alumina ore. 

3. Using the results of the assessment, an evaluation of potential measures that could 

be implemented to minimize the amount of alumina ore that is released to the 

environment during unloading activities. For each 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 following:

 Maintenance 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.

 Maintenance of the flexible flaps located at the vestibule of the unloader 

hopper in good working condition. Damaged or missing flexible flaps 

must be replaced prior to the next ship unloading event.

 Re-programing the clamshell movements to:

 Ensure that after the alumina is dumped into the hopper, the 

clamshell remains in place in an open position to allow remaining 

alumina to fall out into the hopper.
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Permit No. WA000295

 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.

 Installing 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:

 The 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. 

 Clamshell operations for visible fugitive alumina emissions during 

daylight hours when the clamshell is in operation. 

 Vacuuming 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. Procedures for demonstrating compliance with the pollution prevention plan. 

Records of inspections and any corrective actions taken must be kept on file and 

available for review by Ecology. 

 S12. Sediment Monitoring 

S12.A. Sediment Data Report

A sediment sampling and analysis plan was 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/). 

S13. Outfall Evaluation

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 such 
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Permit No. WA000295

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 outfall.

 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.

S14. Certified Operator

The 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 173-230 WAC). This operator must be in responsible charge 

of the day-to-day operation of the wastewater treatment plant. An operator certified for 

at least a Class I plant must be in charge during all regularly scheduled shifts.

S15. Acute Toxicity

S15.A. Outfall 002 Effluent Characterization

1. Conduct 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 Ecology for one year within 45 days of 

sampling and starting no later than July 30, 2015. Each subsequent report is 

due on April 30th, July 30th, October 30th, and January 30th 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 Toxicity Tests

Species Method

Topsmelt 96-hour staticrenewal 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-02-012
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Permit No. WA000295

Conduct the following two 

acute toxicity tests on each 

sample:

Acute Toxicity 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.

S15.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.

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

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 control 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 tests 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 ACEC 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 control and the ACEC is less than 10%, 

the Permittee must conduct the hypothesis test at the 0.01 level of significance.

S15.D. Compliance Testing for Outfall 002 Acute Toxicity

The Permittee must:

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

or with a full dilution series.
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Permit No. WA000295

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 are 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 30th, July 30th, October 30th, and January 30th 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 staticrenewal 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

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

Toxicity 

If a toxicity test conducted under Section D determines a statistically significant 

difference in response between the 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 Permittee 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 toxicity 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 acute 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 notification from Ecology before completing the 

additional testing. The Permittee must submit the notification with the report of 
Page 47 of 80

Permit No. WA000295

the compliance test result and identify the reason for considering the compliance 

test result to be anomalous. 

If Ecology determines that the test result was not anomalous, the 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 facility 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 statistically 

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)].

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

S15.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:
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Acute Toxicity Tests Species Method

Topsmelt 96-hour staticrenewal test Atherinops affinis EPA-821-R-02-012

Mysid 48-hour static test Americamysis bahia EPA-821-R-02-012

S15.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 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:

Acute Toxicity Tests Species Method

Topsmelt 96-hour staticrenewal 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

S15.G. Sampling and Reporting Requirements

1. The Permittee must submit all reports for toxicity testing in accordance with 

the most recent version of Ecology Publication No. WQ-R-95-80, Laboratory 

Guidance and Whole Effluent Toxicity Test Review Criteria. Reports must 

contain bench sheets and reference toxicant results for test methods. 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 Permittee 

must cool the samples to 0 - 6 degrees Celsius during collection and send 

them to the lab immediately upon completion. The lab must begin the toxicity 

testing as soon as possible but no later than 36 hours after 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 and 
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Permit No. WA000295

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 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.

S16. Chronic Toxicity

S16.A Effluent Characterization

The Permittee must characterize the wastewater discharged from Outfall 001 and 

Outfall 002 for chronic toxicity as specified below. 

S16.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 due on April 30th, July 30th, October 30th, and 

January 30th for each of the respective quarters of each year.

Further instructions on testing conditions 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 effluent 

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-R02-014

Sea urchin/ Sand dollar 

survival and development

Strongylocentrotus 

purpuratus/ Dendraster 

excentricus

EPA/600/R95/136

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 
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Permit No. WA000295

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 Section 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 

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.

S16.A.2 Outfall 002 Effluent Characterization

The Permittee must:

i. Conduct quarterly chronic toxicity testing on the final 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 

days 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. 

Further instructions on testing conditions 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 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/R95/136

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. The laboratory 
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Permit No. WA000295

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 Section 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 

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.

S16.B. Effluent Limit for Chronic Toxicity

The effluent limit for chronic toxicity is:

No toxicity detected in a test concentration representing the chronic critical 

effluent concentration (CCEC).

S16.B.1 Outfall 001 Effluent Limit for Chronic Toxicity 

The CCEC means the maximum concentration of effluent during critical 

conditions at the boundary of the mixing zone, defined in Section S1.E.1 of 

this permit. The CCEC equals 1.9% effluent.

S16.B.2 Outfall 001 Effluent Limit for Chronic Toxicity 

The CCEC means the maximum concentration of effluent during critical 

conditions at the boundary of the mixing zone, defined in Section S1.E.2 of 

this permit. The CCEC equals 3.0% effluent.

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

Compliance with the Outfall 001 and Outfall 002 effluent limit for chronic 

toxicity means the results of the testing specified in Section D. show no 

statistically significant difference in response between the control and the CCEC. 

If the test results show a statistically significant difference in survival between the 

control and the CCEC, 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 CCEC. If any toxicity test required 

by Section E shows a significant difference in survival between the control and 

the CCEC 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 

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.
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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 whether a statistically significant 

difference in response exists between the acute critical effluent concentration 

(ACEC) and the control.

S16.D. Compliance Testing for Chronic Toxicity

The Permittee must:

1. Perform the chronic 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 no later than October 30, 2016. Each subsequent report is due on 

April 30th, July 30th, October 30th, and January 30th for each of the respective 

quarters of each year. Further instructions on testing conditions and test 

report content are in Section G below.

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 version 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-95/136
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Saltwater Chronic Test Species Method

Dendraster excentricus

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

If a toxicity test conducted under Section D determines a statistically significant 

difference in response between the CCEC 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 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 Outfall 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 effluent limit for chronic toxicity as described in Subsection B. 

3. Return to the original monitoring frequency in Section C after completion of 

the additional compliance monitoring.

Anomalous test results: If a toxicity test conducted under Section D indicates 

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 testing 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 anomalous. 

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 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 required 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 records
Page 54 of 80

Permit No. WA000295

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 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 60 days after the sample date.

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

S16.F.1 Outfall 001 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 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. WA000295

The laboratory must use whichever one of the two species that will give a 

valid result in each particular test.

S16.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/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. 

The laboratory must use whichever one of the two species that will give a 

valid result in each particular test.

S16.G. Sampling and Reporting Requirements

1. The Permittee must submit all reports for toxicity testing in accordance with 

the most recent version of Ecology Publication No. WQ-R-95-80, Laboratory 

Guidance and Whole Effluent Toxicity Test Review Criteria. Reports must 

contain bench sheets and reference toxicant results for test methods. In 

addition, the Permittee must submit toxicity test data in electronic format 

(CETIS export file preferred) for entry into Ecology’s database.
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Permit No. WA000295

2. The Permittee must collect grab samples for toxicity testing. The Permittee 

must cool the samples to 0 - 6 degrees Celsius during collection and send 

them to the lab immediately upon completion. The lab must begin the toxicity 

testing as soon as possible but no later than 36 hours after 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 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 Subsection 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.

S17. Secondary Wastewater Treatment System Treatment Efficiency Study 

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

Study Plan 

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

Treatment System Efficiency 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 representing 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 sample 

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 SEC.

2. A plan for monitoring and recording the 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: 
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Permit No. WA000295

in-pipe metering, 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. 

S17.B Secondary Wastewater Treatment System Efficiency Study Engineering 

Report

The Permittee must conduct the treatment efficiency study of the SWTS within 90 

days of Ecology’s approval of the plan. The Permittee must submit an 

engineering report detailing the findings of the study within 120 days of 

completing 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. 

S18. Anode Contact Cooling Water AKART Evaluation

The Permittee must determine if the current treatment system for the direct contact anode 

cooling water in the Carbon Plant provides all known, available and reasonable methods 

of prevention, control, and treatment (AKART) for benzo-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, the 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 or documentation demonstrating that the discharge has 

been eliminated no later than February 1, 2016. If the Permittee is required to submit a 

report, the report must include the following:
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Permit No. WA000295

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 identified 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 and 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 implemented to meet 

the AKART standard and a schedule for implementing the proposed upgrades or 

modifications. 

S19. Ground Water Impact Study

Permits issued by Ecology must be conditioned in such 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 investigation. 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 Intalco dated February 26, 

2010.

2. Prepare and submit a report 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 indicate 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 Water Quality Standards (Publication 

#96-02, April 1996). Existing information 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. 

S20. Outfall 011 and Outfall 012 BMP Effectiveness Study

The Permittee is required to collect stormwater 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 provided for the discharges from Outfall 011 and 012. 
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Permit No. WA000295

1. The Permittee must prepare a best management practices (BMP) effectiveness 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 Outfall 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 later than December 31, 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 eliminate 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 issues 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 treatment (AKART) for the stormwater. 

c. A schedule of additional or improved BMP implementation, if deemed necessary 

by 3.b. and 3.c.

General Conditions

G1. Signatory Requirements

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

certified.

a. In the case of corporations, by a responsible corporate officer. For the purpose of 

this section, a responsible corporate officer means: 
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Permit No. WA000295

 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 with environmental laws and 

regulations; the manager can ensure that the necessary systems are established 

or actions taken to gather complete and accurate information for permit 

application requirements; and where authority to sign documents has been 

assigned or delegated to the manager in accordance with corporate 

procedures. 

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

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

 In the case of a municipal, state, or other public facility, by either a principal 

executive officer or ranking elected 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 equivalent 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 an authorization under paragraph G1.2, above, is no 

longer accurate because a different individual or position has responsibility for the 

overall operation of the facility, a new authorization satisfying the requirements of 

paragraph G1.2, above, must be submitted to Ecology prior to or 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 make the 

following certification:

“I certify under penalty of law, that this document and all attachments were prepared 

under my direction or supervision in accordance with a system designed to assure that 
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Permit No. WA000295

qualified personnel properly gathered and evaluated the information submitted. 

Based on my inquiry of the person or persons who manage the system or those 

persons directly responsible for gathering information, the information submitted is, 

to the best of my knowledge and belief, true, accurate, and complete. I am aware that 

there are significant penalties for submitting false information, including the 

possibility of fine and imprisonment for knowing violations.”

G2. Right of Inspection and Entry

The Permittee must allow an authorized representative of Ecology, upon the presentation 

of credentials and such 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, any 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 Actions 

This permit may be modified, revoked and reissued, or terminated either at the request of 

any interested person (including the Permittee) or upon Ecology’s initiative. However, 

the permit may only be modified, revoked and reissued, or terminated for the reasons 

specified in 40 CFR 122.62, 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 entry as required in RCW 90.48.090.
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Permit No. WA000295

2. The following are causes for modification but not revocation and reissuance except 

when the Permittee requests or agrees:

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

b. New information not available at the time of permit issuance that would have 

justified the application of different permit conditions.

c. Material and substantial alterations or additions to the permitted facility or 

activities which occurred after this permit issuance.

d. Promulgation of new or amended standards or regulations having a direct bearing 

upon permit conditions, or requiring permit revision.

e. The Permittee has requested a modification based on other rationale meeting the 

criteria of 40 CFR Part 122.62.

f. Ecology has determined that good cause exists for modification of a compliance 

schedule, and the modification will not violate statutory deadlines.

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

permit.

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

a. When cause exists for 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 G7) but will not be revoked and reissued 

after the effective date of the transfer except upon the request of the new 

Permittee.

G4. Reporting Planned Changes

The Permittee must, as soon as possible, but no later than one hundred eighty (180) days 

prior to the proposed changes, give notice to 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 existing 

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 new 

or increased discharge in excess of permit limits or not specifically authorized by this 

permit constitutes a violation.
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Permit No. WA000295

G5. Plan Review Required

Prior to constructing or modifying any wastewater control facilities, an engineering 

report and detailed plans 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 unless 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 Statutes

Nothing in this permit excuses the Permittee from compliance with any applicable 

federal, state, or local statutes, ordinances, or regulations. 

G7. Transfer of this Permit

In the event of any change in control or ownership of facilities from which the authorized 

discharge emanate, the Permittee must notify the succeeding owner or controller of the 

existence of this permit by letter, a copy of which must be forwarded to Ecology.

1. Transfers by Modification

Except as provided in paragraph (2) below, this permit may be transferred by the 

Permittee to a new owner or operator only if this permit has been modified or revoked 

and reissued under 40 CFR 122.62(b)(2), or a minor modification made under 40 

CFR 122.63(d), to identify the new Permittee and incorporate such other 

requirements as may be necessary under the Clean Water Act.

2. Automatic Transfers

This permit may be 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. The 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 

agreement.

G8. Reduced Production for Compliance

The Permittee, in order to maintain compliance with its permit, must control production 

and/or all discharges upon reduction, loss, failure, or bypass of the treatment facility until 

the facility is restored or an alternative method of treatment is provided. This 

requirement applies in the situation where, among other things, the primary source of 

power of the treatment facility is reduced, lost, or fails.
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Permit No. WA000295

G9. Removed Substances

Collected screenings, grit, solids, sludges, 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 Information

The Permittee must submit to Ecology, within a reasonable time, all information which 

Ecology may request to determine whether cause exists for modifying, revoking and 

reissuing, or terminating this permit or to determine compliance with this permit. The 

Permittee must also submit to Ecology upon request, copies of records required to be 

kept by this permit. 

G11. Other Requirements of 40 CFR

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

reference.

G12. Additional Monitoring

Ecology may establish specific monitoring requirements in addition to those contained in 

this permit by administrative order or permit modification.

G13. Payment of Fees

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

Ecology.

G14. Penalties for Violating Permit Conditions

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 violates 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 noncompliance 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 treatment 
Page 65 of 80

Permit No. WA000295

facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or 

improper operation.

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

such technology-based permit effluent limits if the requirements of the following 

paragraph are met.

A Permittee who wishes to establish the affirmative defense of upset must demonstrate, 

through properly signed, contemporaneous operating logs, or other relevant evidence 

that: 

1. An upset occurred and that the Permittee can identify 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 under 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 Rights

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

G17. Duty to Comply

The Permittee must comply with all conditions of this permit. Any permit 

noncompliance constitutes a violation of the Clean Water Act and is grounds for 

enforcement action; for permit termination, revocation and reissuance, or modification; 

or denial of a permit renewal application.

G18. Toxic Pollutants

The Permittee must comply with effluent standards or prohibitions established under 

Section 307(a) of the Clean Water Act for toxic pollutants within the time provided in the 

regulations that establish those standards or prohibitions, even if this permit has not yet 

been modified to incorporate the requirement.

G19. Penalties for Tampering

The Clean Water Act provides that any person who falsifies, tampers with, or knowingly 

renders inaccurate any monitoring device or method required to be maintained under this 

permit shall, upon conviction, be punished by a fine of not more than $10,000 per 

violation, or by imprisonment for not more than two (2) years per violation, or by both. 

If a conviction of a person is for a violation committed after a first conviction of such 

person under this condition, punishment shall be a fine of not more than $20,000 per day 

of violation, or by imprisonment of not more than four (4) years, or by both.
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Permit No. WA000295

G20. Reporting Requirements Applicable to Existing Manufacturing, 

Commercial, Mining, and Silvicultural Dischargers

The Permittee belonging to the categories of existing manufacturing, commercial, 

mining, or silviculture must notify Ecology as soon as they know or have reason 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-methyl4, 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 levels:”

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).

G21. Compliance Schedules

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 

submitted no later than fourteen (14) days following each schedule date.
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Permit No. WA000295

Appendix A 

List of Pollutants with Analytical Methods, Detection Limits and Quantitation Levels 

The Permittee must use the specified analytical methods, detection limits (DLs) and quantitation levels (QLs) in 

the following table for permit and application 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 report or in the required report.

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

must submit a matrix-specific detection limit (MDL) and a quantitation limit (QL) to Ecology with appropriate 

laboratory documentation.

When 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 neutrals 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 reduce the number of analytical “non-detects” in permitrequired 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 20
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Permit No. WA000295

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-NorgB/C and 

SM4500NH3-

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 5,000
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Permit No. WA000295

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 SO4) 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 SO3) 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 4Ecology NWTPH Dx 250 250

NWTPH Gx 5Ecology NWTPH Gx 250 250
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Permit No. WA000295

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) 2μg/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 10
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Permit No. WA000295

Pollutant & CAS No. (if 

available)

Recommended 

Analytical Protocol

Detection (DL)1

μg/L unless 

specified

Quantitation 

Level (QL) 2μg/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 10
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Permit No. WA000295

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 2.0
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Permit No. WA000295

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 2.0
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Permit No. WA000295

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 0.6
Page 75 of 80

Permit No. WA000295

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 0.4
Page 76 of 80

Permit No. WA000295

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 1.0
Page 77 of 80

Permit No. WA000295

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-PDioxin (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 0.05
Page 78 of 80

Permit No. WA000295

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) 8608 0.025 0.05

4,4’-DDT (50-29-3) 608 0.025 0.05

4,4’-DDE (72-55-9) 608 0.025 0.0510

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) 9608 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) 9608 0.13 0.5
Page 79 of 80

Permit No. WA000295

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 determined 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 point for 

the analyte. It is equivalent to the concentration of the lowest calibration standard, assuming that the lab 

has used all method-specified sample weights, volumes, and cleanup procedures. The QL is calculated 

by multiplying the MDL by 3.18 and rounding the result to the number nearest to (1, 2, or 5) x 10n, 

where n is an integer. (64 FR 30417). 

ALSO GIVEN AS: 

The smallest detectable concentration of analyte greater than the Detection Limit (DL) where the 

accuracy (precision & bias) achieves the objectives of the 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 per method 5210-B. 

4. NWTPH Dx – Northwest Total Petroleum Hydrocarbons Diesel Extended Range – see 

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

5. NWTPH Gx – Northwest Total Petroleum Hydrocarbons Gasoline Extended Range – see 

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

6. 1, 3-dichloroproylene (mixed isomers) – You may report this parameter as two separate parameters: cis1, 3-dichlorpropropene (10061-01-5) and trans-1, 3-dichloropropene (10061-02-6). 

7. Total Benzofluoranthenes – Because Benzo(b)fluoranthene, Benzo(j)fluoranthene and 

Benzo(k)fluoranthene co-elute you may report these three isomers as total 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. WA000295

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

1016/1242.