25B5002 - Appendix D - CIEE water quality monitoring plan.pdf

Craney Island Design Partners 800 World Trade Center Norfolk, VA 23510

Craney Island Eastward Expansion – Water Quality Monitoring Plan

August 2010

(Revised December 2, 2010)

Submitted By:

Virginia Port Authority 600 World Trade Center Norfolk, VA 23510

U.S. Army Corps of Engineers Norfolk District 803 Front Street Norfolk, VA 23510

Table of Contents

Craney Island Eastward Expansion - Water Quality Monitoring Plan November 29, 2010 i

Contents

1. Objective 1-1

2. Parameters 2-1

3. Monitoring Locations 3-1

4. Monitoring Procedures 4-1

4.1. River Monitoring ............................................................................................................ 4-1

4.2. Active Cell Outfall Monitoring ........................................................................................ 4-2

5. QA/QC Procedures 5-1

6. Reporting 6-1

7. Corrective Actions 7-1

List of Tables

Table 2-1: Monitoring Summary ................................................................................................... 2-2 Table 5-1: Sample Container & Preservation Requirements ....................................................... 5-1

List of Figures

Figure 3-1: Monitoring Locations ................................................................................................. 3-2

1-1

1Objective

The objective of this Water Quality Monitoring Plan (WQMP, “Plan”) is to establish monitoring guidelines for dredged material discharges from dredged material placement operations at the Craney Island Eastward Expansion (CIEE) project site. This Plan includes monitoring of dissolved oxygen, pH and total suspended solids in the effluent discharge from outfalls of the two expansion cells during active placement operations, as well as ambient conditions within the Elizabeth River upcurrentand downcurrent of dredging and fill activities during cell construction, rehandling basin modifications, pre-dredging and access channel dredging. This plan specifies monitoring stations, sample depths, sample frequency, water quality parameters, QA/QC procedures, reporting, and identification of unacceptable levels and appropriate corrective action measures.

2-1

2. Parameters

As required by VWPP 08-1641, this Plan provides for twice daily measurements from outfalls at the CIEE cells under active filling and weekly measurements in the river during all dredging and fill activities associated with dike construction. Parameters include: dissolved oxygen (DO), water temperature, pH and total suspended solids (TSS).

In addition, metals and organics will be tested at the active cell outfalls annually.

Additionally, CIEE dredged material placement operations will be required to comply with the USACE District Regulation DR 1130-2-4 “Deposition of Dredged Material into the Craney Island Dredged Material Management Area, Norfolk Harbor, Virginia” which establishes requirements for the management and monitoring of dredged material discharges from the CIDMMA facility and CIEE project site.

Elutriate testing data results generated from sediment collected in the top 20 feet for a study summarized in, Final Data Characterization Report for the Pre-Dredge Area.

Craney Island Dredged Material Management Area Craney Island Eastward Expansion

(Malcolm Pirnie, May 2008) were used to predict the release of contaminants to the dredge supernatant water resulting from dredged material placement operations in a confined disposal facility such as the CIDMMA and proposed CIEE expansion cells.

Based on these results, no organic constituents, and only copper, zinc and tributyl tin should be included in annual testing. However, the DEQ permit conditions for the CIEE project requires testing of both metals and organics. Given these permit conditions, and given that the origin of dredged materials placed at the CIEE may include areas outside of the CIEE project footprint, annual sampling will include the following parameters:

TAL Metals including Mercury, Volatile Organic Compounds, Semi-Volatile Organic

Compounds

Tributyl Tin

A summary of the water quality parameters to be monitored along with sampling frequencies and depths are shown in Table 2-1. Details regarding monitoring equipment, data to be collected and recorded observations of monitoring station conditions are contained in Section 4 (Monitoring Procedures).

Section 2

Parameters

2-2

Table 2-1:

Monitoring Summary

Location

(see Figure 3-1) Parameter Method Frequency Depth

River

TSS Colorimeter

(USACE, DR

1130-2-4 or approved equal)

*Twice

Weekly at mid-tide

1) 1 meter below water surface,

2) mid-depth water column and

3) 1 meter above river bottom

DO Per Field Meter pH

Temperature

Active

CIEE

Cell

Outfalls

TSS

Colorimeter

(USACE, DR

1130-2-4) twice daily during active filling

Top of weir at spillbox(es) of active cell(s)

DO Per Field Meter

Temperature pH

VOCs

SVOCs

8260B

8270C annually in

TAL Metals including Hg

Tributyl Tin

SW-846

6020/74710A

Unger, et al.

August

Standard Methods for the Examination of Water and Wastewater, 20th Edition. 1998

2Test Methods for Evaluating Solid Waste, Vol 1A, 1B, 1C: Laboratory Manual Physical/Chemical Methods, and Vol 2:

Field Manual Physical/Chemical Methods, EPA SW-846 Third Edition; U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response, Washington, DC, 1986 3M. A. Unger, W. G. Macintyre, J. Graves, & R. J.Hugget, Chemosphere, Vol. 15, No. 4 (1986): p. 462.

Initially river monitoring will be conducted twice weekly. This frequency may be modified by DEQ as project construction progresses.

3-1

3. Monitoring Locations

Monitoring stations for the expansion cell outfalls are depicted on Figure 3-1. During filling of the expansion cells, effluent will be visually inspected every 4 hours and tested at a minimum of twice daily at each operating spillway, approximately 12 hours apart.

Based on the SSFATE sediment dispersal model contained in Modeling Suspended

Sediment Plumes Created By Dredging Operations For The Craney Island Eastward

Expansion Project (Computational Hydraulics and Transport, LLC, 2008) the average

TSS values for stations within 5 km of the CIEE site revealed that the natural variability of suspended sediment near the CIEE site ranges from about 33 mg/l near the surface to about 54 mg/l near the bottom. Based on the modeling results presented in the above document, at distances of 100-150 m (328 – 492 ft) from the dredge, sediment plumes generated by the dredging operations generally fall within the natural variability of the system.

Based on these data, this plan calls for monitoring conditions within the Elizabeth River immediately upcurrent and downcurrent of dredging and fill activities during cell construction, rehandling basin modifications, pre-dredging and access channel dredging at monitoring stations R-1 thru R-8 (Figure 3-1). This approach will allow verification that affects to the water column are not occurring beyond this specific reach of the

Elizabeth River. Sampling results from upcurrent stations (these will be considered

“background”) will be compared to results from downcurrent stations, and to historic water quality monitoring data from near-by State monitoring stations, to determine if the project‟s dredging and/or filling activities are impacting river water quality to a degree that corrective measures need to be taken.

Initially, all 8 stations will be monitored. Results will be presented to DEQ, who may agree to reduce the number of stations sampled per monitoring event, and/or recommend alteration of monitoring station locations.

WATER QUALITY MONITORING LOCATIONS FIGURE 3-1

Legend Proposed CIEE Proposed Access Channel Dredge Area

# Approximate Spillbox Monitoring Locations

!. River Monitoring Locations

NOVEMBER 2010

0 2,000 4,000 Feet

S-2S-2

S-4S-4S-3S-3

R1R1

LAT: 36.900459LAT: 36.900459

LONG: -76.337308LONG: -76.337308

S-1S-1

ProposedProposed North CellNorth Cell

ProposedProposed South CellSouth Cell

R2R2

LAT: 36.905318LAT: 36.905318

LONG: -76.338193LONG: -76.338193

R6R6

LAT: 36.924708LAT: 36.924708

LONG: -76.339234LONG: -76.339234

R7R7

LAT: 36.929631LAT: 36.929631

LONG: -76.338638LONG: -76.338638

CRANEY ISLAND EASTWARD EXPANSION

R3R3

LAT: 36.910179LAT: 36.910179

LONG: -76.339193LONG: -76.339193

R4R4

LAT: 36.915212LAT: 36.915212

LONG: -76.339618LONG: -76.339618

R5R5

LAT: 36.920054LAT: 36.920054

LONG: -76.339594LONG: -76.339594

R8R8

LAT: 36.929945LAT: 36.929945

LONG: -76.345799LONG: -76.345799

4-1

4. Monitoring Procedures

Effluent discharge inspections and daily monitoring for total suspended solids will be required to comply with the USACE District Regulation 1130-2-4 for dredged material placement operations under USACE operation. Methods for additional water quality parameters required by the VA VWP Permit will be consistent with the “Standard

Operating Procedures Manual” for the Department of Environmental Quality Water

Quality Monitoring and Assessment Program . Quality control practices shall comply with the “Quality Assurance Project Plan” for The Department of Environmental Quality

Office of Water Quality Assessment.

At the time of sample collection in the river or at the outfalls (as applicable), the following information will be recorded:

Date

Time of Sample Collection

Current Direction & Flow

Predicted Time of Next High Tide (based on Sewalls Point, Station 8638610)

Sampling Personnel

Cloud conditions

Current precipitation conditions

Vessel Traffic During Sampling

Note of precipitation in the prior 24 hours

4.1. River Monitoring

Initially river monitoring will include twice weekly collection of three grab samples at each monitoring station (R1 – R8) using DEQ approved field meters and a discrete depth sampler (e.g., Kemmerer bottle, or similar) as follows:

1. One sample taken from 1 meter below the water surface;

2. One sample taken at mid-depth of the water column; and

3. One sample taken approximately 1 meter above the river bottom.

VDEQ. Standard Operating Procedures Manual for the Department of Environmental Quality Water

Quality Monitoring and Assessment Program. 10/13/2006.

VDEQ. Ambient Water Quality Monitoring Project Plan for the Department of Environmental Quality

Office of Water Quality Assessment.

http://tidesandcurrents.noaa.gov/noaatidepredictions/viewDailyPredictions.jsp?Stationid=8638610

Section 4

Monitoring Procedures

4-2

This frequency may be modified by DEQ (to once per week as required by the VWP) as project construction progresses. Samples will be collected at mid-tide during active dredging and filling of the cells, construction of the access channel, pre-dredge area and modifications to the rehandling basin.

Results of pH and DO sampling at each depth will be recorded in a log book and averaged by location. TSS sampling will be conducted using a HACH DR/850™ meter.

In the initial phase of the project, approximately 10 percent of the field TSS samples will be submitted to a qualified laboratory for QA/QC analysis to confirm meter accuracy.

4.2. Active Cell Outfall Monitoring

Monitoring the discharge at the CIEE expansion cell outfalls will comply with the

USACE District Regulation, DR 1130-2-4. At a minimum spillways and associated effluent discharges will be visually inspected six times a day, approximately every four hours. Each operating outfall will be monitored twice daily (approximately 12 hours apart) during active dredged material placement. If at any time it is visually apparent that effluent other than clarified water is being released, TSS will be measured, results documented, and immediate action will be taken to reduce the concentration of suspended solids in the effluent by increasing the retention time. Each monitoring event will include the collection of one grab sample at each operating outfall, twice daily (12 hours apart), during cell filling, as follows:

1. Collect sample from the weir crest at the spillbox with a clean 1,000 ml wide-mouth polyethylene bottle. A sampling pole or dipper may be used to collect the sample if necessary. TSS will be measured using a Hach 850/DR

Colorimeter (or approved equivalent) in accordance with USACE DR 1130-2-

4. Measurements of pH, temperature and DO will be obtained from a separate sample aliquot using DEQ approved field meter equipment.

2. If dipper is used to collect the sample, decontamination will be accomplished with de-ionized water and mild detergent immediately prior to next use.

3. At a minimum the following information shall be documented for each visual inspection and monitoring event as appropriate:

a. Date and time, inspection location, flow state (flow/no-flow over weir), clarified water visually apparent/clarified water not visually apparent, document results of TSS testing, action taken at spillway, name of person conducting the inspection or monitoring.

As referenced in Table 2-1, the metals sampling and analysis will be conducted once a year in August from each active outfall.

5-1

5. QA/QC Procedures

Quality Assurance and Quality Control procedures for the following items related to this monitoring plan will following those contained the Ambient Water Quality Monitoring

Project Plan for the Department of Environmental Quality, referenced above:

Field Documentation

Field and Laboratory Replicate Sampling

Sampling and Handling Requirements (See Table 5-1)

Analytical Quality Control Requirements

Instrument/Equipment Testing, Inspection and Maintenance Requirements

Instrument Calibration and Frequency Requirements

Table 5-1:

Sample Container & Preservation Requirements

Parameters Containers

Volume

Required Preservation Holding Time

Metals Precleaned

Plastic 1L

Bottle

1L HNO

to pH<2,Cool to

4°C

6Mos. Except

Mercury 28 days

Organics Amber 1L

Glass Bottle

2 x 1L Cool to 4°C 7 Days

Extraction,14D ays Analysis

6-1

6. Reporting

Monitoring reports will be submitted to the DEQ by the 15 th of each month for the preceding month. This frequency may be modified by DEQ as project construction progresses. These reports shall include the following:

1. A written narrative summarizing the monitoring effort

2. A map of monitoring stations with latitude and longitude

3. A numerical presentation of the sampling data in tabular form, as appropriate

4. A description of the QA/QC procedures

5. A copy of laboratory analytical results, as appropriate

6. Copies of logs/ field reports or other documentation of daily/weekly monitoring events

7. An analysis and discussion of how the monitoring results compare to water quality standards

8. Corrective actions being taken (if necessary)

DEQ shall be notified immediately, and associated data provided, whenever the DO level is below the state water quality standard, or when TSS levels (or other constituent levels) exceed the thresholds to be established for this monitoring program. In those cases, corrective actions may be required.

The U.S. Army Corps of Engineers (Corps) shall retain all water quality data sheets, as required by Corps‟ District Regulation 1130-2-4. The Corps will also maintain documentation of any corrective actions taken with respect to contractor‟s notification of average daily TSS concentrations above 500 mg/L as well as any notifications of the contractor‟s failure to operate or report properly under this regulation. This information shall be available to DEQ upon request and shall be retained by the Corps for a minimum of two years and/or otherwise submitted to DEQ.

7-1

7. Corrective Actions

CIEE Cells – Spillbox Effluent

The target or goal is to release only clarified effluent. If at any time it is visually apparent that other than clarified water is being released the effluent TSS will be sampled and immediate action will be taken to reduce the amount of suspended solids in the effluent. Actions may include, but are not limited to:

Modifying work schedule and/or types of work activities

Raising the weir(s) to increase detention time

Reduce in-flow volume

During active cell filling the daily average TSS concentrations of effluent passing over the spillboxes will be maintained at less than 500 mg/L and will be calculated for each 24 hour period, noon to noon. The „less than‟ 500 mg/l TSS concentration is a threshold limit and is not a TSS target or goal. If the daily average effluent TSS concentration is

500 mg/L or greater or an abrupt drop in DO is recorded, the project will cease inflow into and outflow from the CIEE cells to mitigate the effects of the dredged material placement operations.

Elizabeth River – CIEE Dike Construction (Filling & Dredging)

Sampling data for TSS, pH, DO and temperature from upcurrent stations will be compared against the same constituents (and depths) from downcurrent stations to determine if there is any correlation between apparent negative impacts to water quality and project activities at the time of sampling. Monitoring data will also be compared to historic water quality data from nearby state water quality monitoring stations, predicted

TSS and DO levels from project modeling work, and historic literature values from local waters. If this evaluation indicates a potential negative impact caused by the project, coordination with DEQ will be undertaken and an appropriate corrective action will be implemented, if warranted.

Corrective actions for dredging activities could include:

Varying cutter-head speed

Varying speed of swing arm

Modifying work schedule (dredging only during certain stages of the tide)

Other actions as appropriate

Section 7

Corrective Actions

7-2

Corrective actions for filling activities could include:

Use of water-tight buckets

Modifying work schedule (filling only during certain stages of the tide)

Other actions as appropriate (e.g. shift fill location landward)

Work environment conditions at the time will likely dictate the appropriate corrective action(s).