morse reservoir sediment removal plan · any dredging in morse reservoir will require the use of...

Morse Reservoir Sediment Removal Plan

Contact Information:

Morse Waterways Association (MWA) James Schneider, President 2460 Cape Henry Court Cicero, IN 46034 (317) 517-0527 [email protected]

Project Location

Morse Reservoir Hamilton, Boone, Tipton, Clinton Counties Cicero and Noblesville, IN Morse Reservoir/Cicero Creek Watershed (HUC 051202010610)

mailto:[email protected]

Three areas of the reservoir are planned for dredging. Their latitude and longitudes are as follows:

Northeast: 40.144, -86.015; 1:4500

Northwest: 40.141, -86.029; 1:5000

South: 40.092, -86.073; 1:2250

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Public Involvement

For the last 5-6 years, MWA has held periodic meetings with lake front property owners who are interested in the dredging of Morse Reservoir. During this time, a few board members began meeting with IDNR, Corps of Engineers, dredging companies and Citizens Water (and former Indianapolis Water) to educate ourselves with dredging processes and procedures. We then disseminated this information to those interested property owners. In 2013 we invited a small group to our board meeting for dredging update.

As time went by, we focused our attention on the 3 primary inlets to Morse where the property owners were most engaged in dredging and were most impacted by the sediment. In 2013, once Citizens Water committed to an annual dredging budget and plan of action, MWA met with groups of property owners from each of the 3 inlets. We explained that MWA would apply for LARE on their behalf and they would be responsible for the 20% matching funds.

On the North end of the lake, the nonprofit Bayshore Lake Association was formed approximately 3 years ago to pursue this dredging issue. MWA continued to meet with them as they engaged their group. In the last 6 months, we have been meeting with them almost monthly to update them on the progress with Citizens Water and the plan to begin dredging. This area has been selected to begin the dredging in 2014. They have collected and are holding $10,000 in matching funds in anticipation that our $50,000 LARE application will be granted. We continue to keep the other 2 groups informed of progress through email.

At our last MWA public meeting in September, we discussed the dredging plans and Citizens Water commitment. Our next MWA public meeting will be held in May were we plan to spend time with more detailed plans on the dredging operation.

Targeted Sediment Deposits

Cripe Architects & Engineers was hired in March 2013 to perform a sediment analysis for Morse Reservoir. By examining bathymetric surveys and the fill volumes indicated by those surveys, they concluded that Morse North is losing 6,000 cy of storage per year and Morse South is losing 700 cy of storage per year. This correlates to approximately 0.35” of sediment being deposited each year on average. When examining this average depth deposited over 16 years, the result is 4” to 6” which is the average depth when examining depths in the cross section data between 2012 and 1996 (see Appendix A).

On February 13, 2013, Alt & Witzig Engineering (Alt & Witzig) completed sampling at eight (8) locations in Morse Reservoir. Sampling locations were accessed by boat and the boat was idled during collection. A stainless steel hand auger was advanced into the sediment at each location. Each sample was a composite sample collected from the different encountered depths of sediment at each boring location. Boring depths ranged from one (1) foot to two (2) feet below the reservoir bed. Water depths ranged from two (2) to six (6) feet. Samples ranged from silt sediment to Silty Sand. Field observations of the cohesive sediments indicate that they are of the fluid to very soft consistency as described by the US Army Engineer Waterways Experiment Station Dredging Research Technical Notes published in January 1995.

Based on the contributing watershed areas, the storage lost/sediment gained in the study areas equates to approximately 1.13 cf of sediment per acre of contributing watershed for Morse North (Cicero Creek)

and 1.28 cf of sediment per acre of contributing watershed for Morse South (Hinkle Creek). Many measures have been instituted to reduce the erosion and sedimentation occurring in these watersheds.

The Little Cicero Creek Watershed Management Plan was completed in February 2007.

A larger watershed management plan for Morse Reservoir/Cicero Creek Watershed was completed in February 2011.

The Hamilton County Surveyor's Office has been studying the Hinkle Creek Watershed for at least two (2) years.

MWA has made presentations to the Big Cicero Drainage Board regarding plans to dredge the reservoir and requested assistance in their upstream endeavors.

An IDEM Section 319 grant was obtained by the Upper White River Watershed Alliance in 2012 to implement best management practices in priority watersheds, including Cicero Creek Watershed. The UWRWA's grant will continue to implement BMPs to reduce nonpoint source pollutants including sediment throughout 2014.

Mapping of Lake Bottom Contours Before and After Dredging

The normal elevation of the lake’s water surface is 810’. Lake bottom contour drawings were completed by Cripe Architects & Engineers and are included in Appendix A. We plan to dredge to a 6’ water depth; in most locations this is an increase of 2’ to 3’. Post-dredging mapping will be done by the hired contractor.

Chemical Composition of Sediment

Pace Analytical Services, Inc. (Pace) in Indianapolis, Indiana tested the samples for constituents of concern. The pesticide and herbicide analyses were completed by the Pace laboratory in St. Rose, Louisiana. Methods of detection included US EPA Method SW846-6010/7471 for RCRA Metals, US EPA Method SW846-8270 for SVOCs, US EPA Method SW846-8080 for pesticides, and US EPA Method SW846-8151 for herbicides.

Barium, chromium and lead were detected above the laboratory reporting limits in each of the eight (8) sediment samples, but were below the Indiana Department of Environmental Management (IDEM) Remediation Closure Guide (RCG) Soil Migration to Groundwater (MTG), Residential Direct Contact (RDC) and Commercial Direct Contact (CDC) Screening Levels. Arsenic at one site was detected above the laboratory reporting limit, but below the IDEM RCG Screening Levels. Arsenic was detected above one or more of the IDEM RCG Screening Levels in seven (7) sediment samples. These levels are however within the commonly accepted range of background or naturally occurring concentrations in the state of Indiana. Based on the lack of other constituents of concern detections or previous knowledge of a potential anthropogenic source, Alt & Witzig surmises that these concentrations are naturally occurring at the site. Laboratory analysis of soil sediments indicates the remaining analyzed potential contaminants in each soil sample were identified below the laboratory reporting limits and/or their respective IDEM RCG MTG, RDC and CDC Screening Levels. Land Easements, Ownership, Leasing, and Availability

In 2014, our proposed dredging operation will take place out of 80 Bayshore Drive. The landowner has informally agreed to allow use of their property and we are in the process of obtaining formal permission. We have also approached the Seventh Day Adventist property owners about using an approximately 6-acre area as a drying pond and they have been receptive. We will begin having the

proposed area delineated for wetlands and then obtain formal permission to use the site for future work (2015 and beyond). Finally, we have spoken to property owners along a private drive near Morse South who have also seemed agreeable to using their drive for access in 2015 and beyond (when Morse South is dredged).

Equipment and Method of Excavation

Two dredging methods will be made available to the contractor in order to secure the best value for the money spent and match the dredging method most suitable to the site conditions.

Any dredging in Morse reservoir will require the use of adjacent shoreline with access to roadways for removal of the dredged material. The land around the reservoir is privately held and any work performed will require an agreement with the adjacent land owner.

Citizens Water has selected to pursue access and develop plans and specifications allowing the selected contractor to utilize both a barge mounted excavator and hydraulic dredging equipment. The most suitable method depends on the specific location in the reservoir and the water level in the reservoir. The decision process is further described below.

Initial dredging methods are expected to utilize an excavator positioned on a barge with a dredged material container emptied when necessary to haul the material to disposal. If conditions exist where the reservoir has been drawn down and the reservoir bottom is exposed the excavator and dredged material disposal vehicle will track directly on the reservoir bottom to remove dredged material. This method can be supported by using parcels that have already granted access for the project. These are both lots within the Cicero Shores Subdivision. Portions of the reservoir appear to be particularly suited for this dredging style, sections that have sediment up to the normal pool elevation will be more cost effectively dredged with an excavator. Disposal of dredged material will go to landfills placing the material outside of the “waters of the US”.

To expand the dredging effort additional reservoir access is being sought. Particularly Citizens Water is in discussions with the Indiana Association of the 7th Day Adventists who own undeveloped acres of land with Morse Reservoir access. The property would be used under a long term lease for the reservoir dredging.

This additional property would be used in conjunction with hydraulic dredging equipment that is estimated to be the most cost effective method of removing sediment from most of Morse Reservoir. This procedure is well suited for areas of open water and time periods when the water level is near the normal pool level or higher. This method withdraws the sediment and disturbed material via pumping and will remove the sediment from the water in a multi bay sediment basin constructed on the leased property.

The contractor will be required to utilize food grade hydraulic fluid in all hydraulic lines to minimize the risk of hydraulic fluid leak. A spill prevention control and countermeasures (SPCC) plan will be submitted for review and approval by Citizens Water prior to any work starting.

Contractor

Citizens Water will invite contractors to submit bid proposals for this project. In order to be invited a contractor will have either satisfactorily performed dredging in the past for Citizens Water or will be able to demonstrate similar project history and supply references for the performed work.

The evaluation and selection of proposals shall be based on the information called for in the project request. Selection can be made without discussion with respondents. Selection shall be based on the highest value, responsible and responsive proposal.

When determining whether a proposal is responsive, Citizens Water shall consider the following:

Conforms to instructions Conforms to specifications

When determining whether a respondent is responsible, Citizens Water shall consider the following:

Ability and capacity of the respondent Integrity, character, and reputation of the respondent Competence and experience of the respondent Financial position and capacity of the respondent Citizens Water will monitor the progress of the contractor through daily site visits of staff and

physical measurements of the dredged area to confirm removal on regular intervals. As part of the contract documents an estimated schedule will be included and the contractor will be required to supply a schedule for their dredging operations. Liquidated damages will be included for the costs incurred for failure to complete the project within the proposed schedule. The contractors proposed schedule will be a consideration in selection.

Citizens Water full time employee Jim Gunn will be responsible for oversight of the dredging operations. He is a licensed water treatment plant operator who currently works as a construction inspector for Citizens Water. He has been the inspector for the Citizens Water dredging project on the central canal for the past two seasons, 2012 and 2013. He is well qualified to monitor the dredging operation.

Disposal and/or Dewatering

For material removed all material will be placed in accordance with permit restrictions. For material removed by an excavator all material will be transported via sealed trucks to a disposal site outside of the waters of the U.S. For material removed via hydraulic dredge the settled material will be field applied an upland location if it is found to be suitable for such an application. If the material is found to be unsuitable for field application due to contamination or nutritional content the settled material will be disposed of in a suitable landfill. All material will be transported via commercial trucking meeting Citizens Water’s insurance requirements for such work.

For the material removed by an excavator all material will be loaded into a temporary holding container on the barge itself until it can be off loaded and reloaded onto a truck for disposal. The only temporary construction necessary will be the access construction.

For hydraulically dredged material a multi bay sediment basin will be constructed. This basin will have a series of spillover weirs constructed with the settled water discharged back into Morse Reservoir. The Sedimentation basin will be constructed on the property owned by the Indiana Association of the 7th day Adventist. The particular area is bordered by Morse Reservoir to the south and east, a rail line to the west and the north limit is a forested corridor along unnamed tributaries on the same property. Earth moving equipment will be used to create a 4 acre sedimentation pond.

The site restoration plan is to return the site to the preconstruction conditions. The site will be grade to the preconstruction contours. For the sedimentation basin the basin will be left in place until the end of the dredging which will occur in approximately 2025. There will be approximately 300 trees and shrubs planted along with native grasses in the area disturbed by the sedimentation pond. The final species selection will be performed by an ecological consultant.

For the sites in the Cicero Shores Subdivision only minor disturbance is expected requiring only limited restoration. All disturbed areas will be restored by mulched seeding at the end of the 2014 dredging season.

Permits Applications

Citizens Water has experience with local, state, and federal permitting and will obtain the necessary permits for this project.

Construction Schedule and Sequence of Work

The following schedule is estimated:

April 18 – Request proposals from selected contractors

May 15 – Proposals due

June 1 – selection announced

June 15 – NTP

July 1 – Dredging started

September 15 – Dredging complete

September 30 – Restoration and demobilization complete

Timing was estimated based on typical project process and experience in dredging progress from other Citizens Water dredging projects.

Cost

Costs were estimated using past bid amounts. Two different estimates are provided, one for a single step removal and one for hydraulic dredging.

Cost estimate Assuming Single Step Removal

Unit Price Quantity Subtotal

Mobilization $ 12,000 / each 1 $12,000

Site Rental $ - month 5 $0

Erosion Control $ 5,000 / Lump 1 $5,000

Dredging $ 30 / CYD 6000 $180,000

Disposal & Testing $ 15 / CYD 6000 $90,000

Site Restoration $ 6,000 / each 1 $6,000

Demobilization $ 12,000 / each 1 $12,000

Total = $305,000

Cost estimate Assuming Hydraulic dredge

Unit Price Quantity Subtotal

Mobilization $ 12,000 / each 1 $12,000

Sedimentation Basin $ 25,000 / each 1 $25,000

Site Rental $ 1,000 /month 5 $5,000

Dredging $ 20 / CYD 9000 $180,000

Disposal & Testing $ 8 / CYD 9000 $72,000

Site Restoration $ 6,000 / each 1 $6,000

Demobilization $ 12,000 / each 1 $12,000

Total = $312,000

No unusual costs are expected.

Site Restoration

The site restoration plan is to return the site to the preconstruction conditions. The site will be grade to the preconstruction contours. For the sedimentation basin the basin will be left in place until the end of the dredging which will occur in approximately 2025. There will be approximately 300 trees and shrubs planted along with native grasses in the area disturbed by the sedimentation pond. The final species selection will be performed by an ecological consultant.

For the sites in the Cicero Shores Subdivision only minor disturbance is expected requiring only limited restoration. All disturbed areas will be restored by mulched seeding at the end of the 2014 dredging season.

The sedimentation is expected to be disposed of in an offsite landfill. Verification of disposal will be required from the contractor.

Appendix A

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Citizens Energy GroupCSSHEET R (317) 844-6777 FAX (317) 706-6464

INDIANAPOLIS, INDIANA 462403939 Priority Way South Drive, Suite 400

E-Mail [email protected] GISLAND SURVEYING

INTERIOR DESIGNCIVIL / TRANSPORTATION ENGINEERSLAND PLANNING

OWNER'S REPRESENTATION

EQUIPMENT PLANINGARCHITECTUREARCHITECTURE

MORSE RESERVOIRCROSS SECTIONS

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