APPENDIX B5-Final Cape Disappointment WQMPP_18April2021.pdf

FINAL

WATER QUALITY MONITORING PROTECTION PLAN

FOR DREDGING AT UNITED STATES COAST GUARD

STATION CAPE DISAPPOINTMENT

Submitted to:

Washington State Department of Ecology

Post Office Box 47775 Olympia, Washington, USA

98504-7775

Submitted by:

U.S. Coast Guard Civil Engineering Unit Oakland

1301 Clay Street, 700N Oakland, California 94612

Prepared by:

Wood Environment & Infrastructure Solutions, Inc.

San Diego, California Portland, Oregon

Submitted: April 19, 2021

Wood Project No. 336010028, Phase 0004 Contract Number: 70Z05019DWEAISI09

Task Order Number: 70Z08820FPQQ05400

United States Coast Guard U.S. Department of Homeland Security

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Wood Environment & Infrastructure Solutions, Inc.

15862 SW 72nd Ave #150 Portland, OR 97224 www.woodplc.com

April 19, 2021

United States Coast Guard Station Cape Disappointment Water Quality Monitoring Plan for Dredging and Disposal

Laura Inouye Washington State Department of Ecology Shorelands and Environmental Assistance Program 300 Desmond Drive SE, Lacey, WA 98503

Re: Water Quality Monitoring Protection Plan to support Dredging and Disposal United States Coast Guard Station Cape Disappointment Ilwaco, Pacific County, Washington and Flowlanes, Clatsop County, Oregon

Dear Ms. Inouye:

Included within this document are a description of the methods and means to monitor the discharge(s) potentially generated during dredge and disposal actions for the subject project.

If you have any questions or concerns regarding this application, please contact Erin Hale at (805)403-4802 or by email at erin.hale@woodplc.com.

Please do not hesitate to contact us if you have any questions concerning this plan.

Respectfully submitted, Wood Environment & Infrastructure Solutions, Inc.

Erin Hale Senior Permitting and Planning Specialist

Final Water Quality Monitoring Protection Plan For Dredging and Disposal US Coast Guard Station Cape Disappointment

Page i

TABLE OF CONTENTS

Page ACRONYMS AND ABBREVIATIONS ......................................................................................................................... III

1.0 INTRODUCTION ............................................................................................................................................... 1-1

1.1 Project Overview ................................................................................................................................... 1-1

1.2 Construction Methods ........................................................................................................................ 1-2

1.3 Water Quality Criteria ......................................................................................................................... 1-2

1.4 Best Management Practices ............................................................................................................. 1-3

2.0 WATER QUALITY MONITORING ................................................................................................................. 2-1

2.1 Visual Monitoring ................................................................................................................................. 2-1

2.1.1 Visual Monitoring Schedule ............................................................................................. 2-1

2.2 Best Management Response Actions ........................................................................................... 2-2

2.3 Instrument Monitoring ....................................................................................................................... 2-2

2.3.1 Instrument Monitoring Schedule................................................................................... 2-3

2.3.2 Instrument Monitoring Stations ..................................................................................... 2-3

2.4 Record Keeping ..................................................................................................................................... 2-3

3.0 RESPONSE ACTIONS AND NOTIFICATIONS .......................................................................................... 3-1

3.1 Visible Turbidity Plume ....................................................................................................................... 3-1

3.2 Instrument Field Monitoring ............................................................................................................ 3-1

3.3 Potential Debris Release .................................................................................................................... 3-2

3.4 Distressed or Dying Fish .................................................................................................................... 3-2

3.5 Discharge of Oil, Fuel, or Chemicals .............................................................................................. 3-2

3.6 Notifications ........................................................................................................................................... 3-3

4.0 REFERENCES ....................................................................................................................................................... 4-1

Page ii

LIST OF TABLES

Table 1-1. Water Quality Standards for “Excellent Quality” Waterbodies (173-201A WAC) .... 1-2 Table 2-1. Instrument Monitoring Depths at Compliance and Background Stations .................. 2-2

LIST OF FIGURES

Figure 1-1. Project Vicinity ................................................................................................................................... 1-5 Figure 1-2. Proposed Dredging Area for Permitting .................................................................................. 1-7 Figure 1-3. Proposed Disposal Locations ....................................................................................................... 1-9 Figure 2-1. Theoretical Instrument Monitoring Locations for Turbidity ............................................. 2-5

LIST OF APPENDICES

Appendix A Water Quality Monitoring Visual Observation Sheet

Appendix B Water Quality Monitoring Instrument Monitoring Sheet

Page iii

ACRONYMS AND ABBREVIATIONS

BMP best management practice

CM Channel Mile

CWA Clean Water Act cy cubic yards

DMMP Dredged Material Management Program

Ecology Washington Department of Ecology

MLLW mean lower low water

NTU nephelometric turbidity unit

OD overdredge

USCG United States Coast Guard

User Manual Dredged Material Evaluation and Disposal Procedures User Manual the Station Station Cape Disappointment

WAC Washington Administrative Code

WQMPP Water Quality Monitoring Protection Plan

Page iv

Page 1-1

1.0 INTRODUCTION

The United States Coast Guard (USCG) is proposing to perform dredging to re-establish operational depths at its Station Cape Disappointment (the Station) located in Baker Bay, Ilwaco, Pacific County Washington (Figure 1-1) and maintain operational depths over a 10-year period.

The Station is a federally owned property in the Columbia River Estuary on the eastern shore of Cape Disappointment at 322 Coast Guard Road, Ilwaco, Washington 98624. Baker Bay is crossed by the West Channel, a federally maintained navigation channel, which lies directly east of the Station from Channel Mile (CM) 1 to CM 2.5.

The objective of this Water Quality Monitoring Plan (WQMPP) is to ensure compliance with Washington State Surface Water Quality Standards (173-201A Washington Administrative Code [WAC]) and Section 401 of the Clean Water Act (CWA), for which the Washington Department of Ecology (Ecology) is the delegated regulatory authority during both dredge and disposal activities.

This WQMPP details procedures that will be employed to ensure water quality protection measures are met during construction (i.e. dredge and disposal) activities. No changes to current operation or maintenance are proposed. Core elements of this WQMPP include:

1) Equipment and measures planned to treat, control, or manage any discharge(s);

2) Monitoring methods, schedules, and compliance locations for visual and instrument compliance monitoring events (if needed);

3) Response actions and notifications required if a water quality criterion is exceeded during dredging activities; and

4) Reporting requirements.

1.1 Project Overview

The Project purpose is to re-establish operational depths needed for safe vessel navigation, berthing, and access to the Station. Significant sediment shoaling is occurring at the Station, restricting vessel access to both piers and travel lift areas required to launch and moor vessels.

Dredging at the Station would restore the operational depth of -10 feet mean lower low water (MLLW) plus a 2-foot overdredge (OD) allowance (to -12 feet MLLW) (Figure 1-2).

Proposed placement locations for the dredged materials include unconfined aquatic disposal at the Columbia River flow lanes (Figure 1-3). The first dredging event at the Station is proposed to occur between 01 November 2021 through 28 February 2022. The proposed dredged volume for the first event is approximately 3,726 cubic yards (cy) and is expected to take up to one (1) week to complete for the initial episode. Sediments from the proposed dredging footprint were collected in October 2021 and analyzed under guidelines outlined in the Dredged Material Evaluation and Disposal Procedures User Manual (User Manual) prepared by the Dredged Material Management Program (DMMP) agencies ([DMMP], 2018). Sediment analysis results indicated that the proposed dredged materials contain low chemical concentrations, high proportions of sand (96.7 percent) and low total organic carbon content (0.15 percent). Based on these results, the

Page 1-2

DMMP approved the proposed dredged materials as suitable for unconfined aquatic disposal and down-ranked the Station from low-moderate to low, re-establishing the recency period to 7-years between required characterization studies (USCG 2021).

For the first maintenance dredging event the USCG is proposing to place sediments in the Columbia River at Baker Bay-3 or Flowlane D under a Section 408 approval provided by the United States Army Corps of Engineers (USACE) Portland district 17 March 2021. Future dredging events are also anticipated to use the Columbia River Flowlanes; however, if an unanticipated restriction is identified during future disposal events, we understand additional permitting and/ or consultations would apply.

1.2 Construction Methods

Final dredging specifications will be chosen to meet Project objectives in the most cost-effective and efficient way and will be determined through a performance-based bid process that allows the contractor to select specific equipment and methods. In general, depending on the chosen placement location and timing for the proposed Project, it is likely that either a clamshell or pipeline dredge would be used with the intent to dispose of sediments at a nearby placement area.

1.3 Water Quality Criteria

The Columbia River and Baker Bay at Cape Disappointment are classified as “Excellent Quality” water bodies by the State of Washington (173-201A WAC). Water quality of this use class shall meet or exceed the requirements for all uses including, but not limited to, salmonid migration and rearing; other fish migration, rearing, and spawning; clam, oyster, and mussel rearing and spawning; crustaceans and other shellfish (crabs, shrimp, crayfish, scallops, etc.) rearing and spawning (173-201A-612 WAC). Based on the proposed actions for the Project (dredging and in-water placement) and the dredged material sediment quality, turbidity is the primary water quality parameter of concern (Laura Inouye, Personal Communication 2021). Table 1-1 presents the water quality standards required for “Excellent Quality” waterbodies.

Table 1-1. Water Quality Standards for “Excellent Quality” Waterbodies (173-201A WAC)

Parameter Water Quality Criterion

Turbidity If less than 50 NTU Background Turbidity Plus 5 NTU

If greater than 50 NTU Background Turbidity plus 10 percent Notes: WAC = Washington Administrative Code; NTU = nephelometric turbidity unit

Water quality effects are expected to be temporary for the Project and do not require an extended area of mixing for any of the dredging or placement activities. During dredging and placement, Page 1-3 water quality will be monitored at the boundary of the authorized area of mixing which is defined as 150 feet (45.7 meters) for turbidity.

Because of the high sand content of the proposed dredged materials and suitable for in-water disposal determination, impacts to water quality for the Project will primarily be determined by evaluating any potential turbidity visually observed downstream of discharge activities.

Downstream and upstream locations will be identified for each monitoring event based on the tide. For outgoing (ebb) tides, downstream locations will be positioned west toward the Pacific Ocean or mouth of Baker Bay, for incoming (flood) tides, downstream monitoring will occur east away from the Pacific Ocean or positioned toward the back bay.

1.4 Best Management Practices

All Project elements will implement the following best management practices (BMPs) to ensure protection of water quality from discharge activities:

All in-water work will be performed within the in-water work window of November 1 and February 28 unless otherwise approved by appropriate agencies.

Performance of a pre-construction eelgrass survey and preparation of a mitigation plan.

All equipment will be maintained in good condition and designed to ensure no leaking or spilling of potentially hazardous substances such as hydraulic fluid, diesel, gasoline, and other petroleum products would occur.

All hazardous substances such as fuel and petroleum products will be stored in a way that complies with safe operating procedures and appropriate spill response kits with proper containment and training of personnel will be provided in the case of a spill event.

All in-water equipment will be positioned in such a way that it minimizes damage to existing habitat.

Dredging activities will be performed in such a way as to minimize the amount of spilling that occurs. To do this the operator will:

o Control the drop speed of the dredge bucket;

o Limit the swing radius of the bucket;

o Not overfill the dredge bucket;

o Control offloading of dredged materials;

o Not overfill the dredge barge beyond 80 percent capacity, and

Implement vessel speed limits and protocols to prevent grounding and prevent excess turbidity during Project activities.

A Global Positioning System (GPS) will be emplaced to record dredging and placement locations.

Dredging depth (including approved OD depth) and area limits will be observed.

No bottom stockpiling or dredging beyond the OD limit will occur.

Placement of dredged materials will be performed using a bottom dump barge.

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PROJECT

SITE

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PROJECT VICINITY

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UNITED STATES

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DREDGE PERMIT

STATION CAPE DISAPPOINTMENT

ILWACO, WASHINGTON

336010028

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DREDGE PERMIT

STATION CAPE DISAPPOINTMENT

ILWACO, WASHINGTON

PROPOSED DREDGING

FOOTPRINT PLAN VIEW

UNITED STATES COAST GUARD

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APRIL 2021

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LEGEND:

Proposed Dredge Area Dredge Placement Site (approximate)

DREDGE PERMIT

STATION CAPE DISAPPOINTMENT

ILWACO, WASHINGTON

PROPOSED

PLACEMENT LOCATIONS

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Page 2-1

2.0 WATER QUALITY MONITORING

Water quality will be monitored throughout the duration of dredging and placement activities in accordance with the Water Quality Certification (to be issued by Ecology). The primary monitoring method proposed for the Project is visual monitoring. Visual monitoring would be supplemented with real-time instrumented monitoring of water quality parameters with a turbidity sensor at a Compliance monitoring station and a Background monitoring station if a response action is triggered. Performance standards will be demonstrated using visual observation data sheets that include a record of response actions and, if necessary, data from the Compliance station compared to a corresponding Background monitoring station. The Background monitoring station will be located outside the area of influence approximately 300 feet (91.4 meters) upstream of the dredging activities (Figure 2-1). In the event that there is an exceedance of water quality standards based on either visual or instrument monitoring, response actions and notifications will be triggered as outlined in the following sections.

2.1 Visual Monitoring

Visual monitoring will be the primary method used to determine impacts to water quality during Project discharge. An example of the form used by the visual observer is provided as Appendix A.

Visually monitored water quality parameters and locations include:

Turbidity within 150 feet (45.7 meters) of dredging activities, Sheen at the point of discharge, Presence of construction or other floating debris in the water at the point of discharge, and Operation and effectiveness of BMPs at the point of active operation.

Visual observations will be performed by trained personnel at least twice daily from a high vantage point (e.g., the dredge crane operator booth, nearby raised land area/building, or similar vantage point) near the dredging operations.

2.1.1 Visual Monitoring Schedule

All turbidity monitoring for dredging and placement will be conducted during daylight hours, only. Each of the parameters in Section 2.1 will be visually monitored throughout the duration of dredging and placement activities, and data will be recorded at least twice daily at least one hour after the start of dredging operations at the beginning of each day and again following any additional re-starts. If there is no break in dredging activities during the day to initiate a second event, the second daily observation will occur approximately one hour prior to the end of dredging activities. If a potential water quality exceedance (i.e., significant turbidity plume) is observed that cannot be attributed to another source (i.e., other vessel traffic or sediment disturbing activity), an additional visual survey form will be filled out at the time of the observation and notifications will be made as soon as possible so that BMP response actions may be implemented to reduce

Page 2-2 impacts to water quality (see Section 2.2). Visual survey forms will also be filled out for each dredged material placement event.

2.2 Best Management Response Actions

Turbidity will be monitored throughout the duration of dredging and placement activities. If turbidity appears elevated, the observer has the authority to halt activities to allow for additional engineering or operational controls and/or BMPs outlined in Section 1.4 to be implemented or reinforced for turbidity containment or dissipation. At the time when turbidity is observed, an additional visual survey form in Appendix A will be filled out by the observer and response actions will be noted. If turbidity does not dissipate within one hour of implementing BMPs, or if turbidity extends beyond the 150-foot (45.7 meter) compliance boundary, instrument monitoring of the Compliance and Background monitoring stations will be triggered.

If turbidity exceeds the compliance criteria in Table 1-1, turbidity monitoring will be performed until water quality returns to acceptable conditions.

2.3 Instrument Monitoring

If visual monitoring indicates there may be a significant turbidity plume and BMP response actions are determined to be ineffective, instrument monitoring will be triggered. Instrument monitoring will only be performed for turbidity at the Compliance and Background monitoring stations (Figure 2-1). Real time turbidity will be monitored using a turbidity meter to collect data in nephelometric turbidity units (NTU). Instrument monitoring at the Compliance and Background monitoring stations will be conducted according to water depth as outlined in Table 2-1.

Table 2-1. Instrument Monitoring Depths at Compliance and Background Stations

Water Depth (feet) Number of Monitoring Depths

Monitoring Depth

Greater than 10 3

2-feet from Surface

Mid-Water Depth

2-feet above Mudline

5-10 2 2-feet from Surface

2-feet above Mudline

Less than 5 1 Mid-Water Depth

Water quality data collected at the Background monitoring station for comparison to the Compliance monitoring station will be collected at approximately the same water depth. Using data collected at similar water depths at the Compliance and Background monitoring stations will minimize the potential for inappropriate comparisons between surface freshwater river flows and

Page 2-3 deeper more saline estuarine waters. A compliance monitoring datasheet is included as Appendix B.

2.3.1 Instrument Monitoring Schedule

If instrumented monitoring is required, it will consist of two rounds of measurements each day to evaluate if there is a measured exceedance in water quality criteria listed in Table 1-1. If any exceedance is observed that may be attributed to Project dredging or placement activities and not ambient conditions, response actions and notification procedures will be implemented as described in Section 3.

2.3.2 Instrument Monitoring Stations

During each monitoring event, turbidity will be measured at two stations:

1) The Compliance Monitoring Station located at the edge of the mixing zone of 150 feet (45.7 meters) downstream of dredging or placement activities. Compliance with water quality criteria listed in Table 1-1 will be evaluated at this station in comparison to

2) The Background Monitoring Station located at least 300 feet (91.4 meters) upstream of the Project site and beyond the influence of dredging activities. The Background monitoring station will ideally be located in an upstream area with a similar water depth and physical characteristics to the Compliance monitoring station.

Figure 2-1 shows theoretical locations of the two monitoring locations based on an approximate point of dredging within the Project footprint.

2.4 Record Keeping

The USCG Project Engineer or Environmental Manager will keep written record of the twice-daily monitoring activities and inspections during both visual and instrumented monitoring (if implemented). These records will be maintained in Project files and provided to Ecology on a weekly basis.

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THEORETICAL INSTRUMENT MONITORING

LOCATIONS FOR TURBIDITY

UNITED STATES COAST GUARD

0 8040 Feet

WATER QUALITY MONITORING PLAN

STATION CAPE DISAPPOINTMENT

ILWACO, WASHINGTON

Wood Environment &

Infrastructure Solutions, Inc.

15862 SW 72nd Ave., Suite 150

Portland, OR 97224

DATE

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SOURCE:

Bathymetric data is from a survey conducted by Gahagan & Bryant Associates, Inc. on April 1, 2020 and represents the sea floor conditions present on that date.

LEGEND:

Proposed Dredge Area Proposed Dredge Area Toe Estimated Dredge Footprint Bathymetry Contour (2 ft. interval, MLLW datum) Bathymetry Contour (1 ft. interval, MLLW datum)

!( Theoretical Dredge Location

Example Background Monitoring Station (Upstream)

Example Compliance Monitoring Station (Downstream) Compliance Monitoring Station 150 ft. Arc

Bacgkround Monitoring Station 300 ft. Arc

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3.0 RESPONSE ACTIONS AND NOTIFICATIONS

If an exceedance of water quality standards as observed during visual or instrumented monitoring, dredging will be immediately halted, and the cause of turbidity will be assessed. Once the source has been identified, if attributed to dredging activities, control measures will be implemented to prevent further impacts. Monitoring will continue to confirm that control measures are effective, and the observed water quality exceedance has been mitigated before work is resumed.

3.1 Visible Turbidity Plume

If a significant turbidity plume is observed during dredging, the Project vicinity will immediately be visually assessed to determine the cause. If the cause of elevated turbidity is considered to potentially be caused by Project actions, dredging operations will be thoroughly evaluated to determine if they may have caused the significant turbidity plume to occur. A significant plume is defined as that which extends the entire length of the mixing zone (up to 150 feet [45.7 meters]) downstream of the dredging activity. It should be evident that the cause of the plume is from dredging activities and not an atypical background condition, based on the shape and extent of the plume. If the plume persists after implementing engineering or operational controls to limit turbidity, enhanced BMPs such as further reducing the dredging speed or drop bucket height and swing radius will be implemented to reduce turbidity to acceptable levels. If turbidity does not dissipate once additional control measures have been implemented, and the turbidity plume is still visually evident at the compliance boundary, instrumented monitoring may be initiated to better assess compliance with water quality standards.

3.2 Instrument Field Monitoring

Instrument field monitoring will be initiated once it is verified that the turbidity plume is from dredging operations, engineering or operational controls do not cause a reduction in turbidity, and the turbidity plume extends to (or beyond) the compliance boundary at 150 feet (45.7 meters).

Compliance with water quality criteria will be determined at the downstream Compliance monitoring station as compared to the upstream Background monitoring station using criteria in Table 1-1. If initial instrument readings of turbidity indicate that there is an exceedance of water quality criteria at the Compliance monitoring station, the following sequence of events will be initiated:

1) Confirm that conditions do not indicate that the turbidity exceedance was not caused by ambient or anomalous river conditions associated with Project activities.

2) Re-take field measurements 15 minutes later at the Compliance and Background monitoring stations to confirm (or not confirm) the exceedance.

3) Immediately notify dredging contractor and USCG Project Engineer if exceedance is confirmed.

4) Immediately modify operations or implement BMPs to mitigate exceedance.

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5) Re-take field measurements at Compliance and Background monitoring stations 30 minutes later, after additional BMPs and/or operational modifications are implemented.

6) Notify Ecology of the exceedance, actions taken to mitigate the exceedance, and results of follow-up measurements. If the turbidity plume persists despite BMP implementation, discuss next steps with Ecology. These steps may include:

a. More aggressive BMPs and/or operational modifications.

b. More intensive monitoring to better track turbidity plume.

c. Stop work to allow water quality to recover while further assessing the source of the turbidity plume and identify more effective mitigation measures.

3.3 Potential Debris Release

If debris is accidentally released into the water that is not considered inert (e.g., wood, stainless steel, etc.), dredging will be stopped, and debris will be recovered. If necessary, repairs to equipment, containment measures, and/or modification to work practices may be made prior to resuming dredging activities. Once the source of debris has been managed, dredging may continue. If the debris is considered to be harmless to the environment and there are no safety concerns for the contractor, dredging may proceed without interruption while debris is removed from the water.

3.4 Distressed or Dying Fish

If distressed or dying fish are observed within the Project vicinity, dredging will immediately cease, and Ecology will be notified in addition to the Washington Department of Fish and Wildlife and the National Marine Fisheries Service. The condition of the fish (dead, dying, erratic behavior, etc.);

an estimate of the number, species, approximate size of fish in each condition, and the location of fish relative to dredging operations will be noted. If any listed species are found deceased within the vicinity of the Project, samples will be collected and frozen for possible agency inspection. Additional fish and/or water sampling may be requested by the agencies to determine causes.

3.5 Discharge of Oil, Fuel, or Chemicals

In the event of a discharge of oil, fuel, or chemicals, containment and cleanup efforts shall begin immediately and be completed as soon as possible. Cleanup includes appropriate disposal of any spilled material and cleanup material. If a spill occurs, the following agencies will be immediately notified:

Ecology’s Spill Response Office at (360) 407-6300 Washington State Emergency Management at (800) 258-5990 National Response Center at (800) 424-8802

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3.6 Notifications

In the case of an exceedance of water quality standards, work will be immediately halted, and notification will be made to the USCG Project Engineer or Environmental Manager, who will notify Laura Inouye, Shorelands and Environmental Assistance Program, Washington State Department of Ecology at (360) 407-6165 or (360) 515-8213 within 24 hours.

A detailed written report will be submitted to Ecology within 5 working days or as otherwise specified in the Section 401 Water Quality Certification for this Project. The report will include the following information:

Order Number, applicant name, Project name, Project contact, and contact phone number;

Nature and extent of the water quality exceedance, including detailed visual observations and, if appropriate, Compliance and Background monitoring station measurements;

Identification of the likely cause of the exceedance;

Description of control measures or BMPs implemented to mitigate an exceedance;

Notifications, including timing and names of agency personnel contacted; and Documentation that control measures or BMPs were effective at mitigating the water quality exceedance, allowing dredging to resume.

Each report will be submitted to the Project manager and also via electronic mail to the inbox at fednotification@ecy.wa.gov.

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4.0 REFERENCES

Dredged Material Management Program (DMMP) agencies. 2018. Dredged Material Evaluation and Disposal Procedures User Manual. December 2018.

Inouye, Laura. 2021. Personal Communication between Ms. Inouye and Kimbrie Gobbi. March 22, 2021.

United States Coast Guard. 2021. Final Sampling and Analysis Plan Report Dredging at Station Cape Disappointment. March 2021.

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APPENDIX A

WATER QUALITY MONITORING VISUAL OBSERVATION SHEET

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Water Quality Turbidity Monitoring Field Datasheet for Dredging at USCG Station Cape Disappointment

VISUAL MONITORING FORM

Date (mm/dd/yyyy)

Time (24)

GPS (WGS84) Lat Long

Station

Tide (ft)

Water Depth (ft)

Weather Clear Overcast Rainy

Wind

No Yes

Odor None

Slight Petroleum

Heavy Petroleum Organic Other

None Yes

None Yes

Plume Reaches Compliance Boundary?

See Instrument Monitoring Form For Additional Information?

No Yes mph

OilOil anandd GGreaserease

Floating Material or

Debris?

Current Speed and Direction

Visible Turbidity Plume?

Plume Attributed to Dredging Activities?

Instrument Monitoring Triggered?

Comments

Direction

Temperature

No Yes No Yes

No Yes

APPENDIX B

WATER QUALITY MONITORING INSTRUMENT MONITORING SHEET

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Water Quality Monitoring Field Datasheet for Dredging at Station Cape Disappointment

INSTRUMENT/COMPLIANCE MONITORING

Sheet _______ of _______

Date ____________________

(mm/dd/yyyy)

Weather Clear Overcast Rainy

Temperature (°F) __________________

Wind (mph/direction) __________________

Station Compliance

(150 feet downstream) Background

(300 feet upstream)

Time (24 hour)

Latitude

Longitude

Total Water Depth (feet)

Tide (feet; flood/ebb)

Approximate Current Speed and Direction?

Distance from Dredging Activity (feet)

Odor (Y/N, describe)

Floating Material or Debris (Y/N, describe)?

Visible Turbidity Plume at Station? (Y/N)

Surface

Mid-Depth

Deep

Exceedance? (Y/N)

Surface

Mid-Depth

Deep

Comments (Explain response actions and/or reasons for none)

Dredging Contractor

USCG Project Manager

Ecology

Additional Response Action? (Y/N)

Note: One sheet should be used per monitoring event. Multiple sheets to be used when an exceedance is recorded.

Notifications (as needed)

Monitoring Depth (feet)

Turbidity Reading (NTUs)