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 TitleModified DateSize Description
LIMITED ENVIRONMENTAL REVIEW1/27/20143.59 MBDownloadBERLIN PUMP STATION IMPROVEMENTS & DISTRIBUTION VALVE REPLACEMENT PHASE II

  
LIMITED ENVIRONMENTAL REVIEW

The purpose of this notice is to advise the public that Ohio EPA has reviewed the referenced project and finds neither a Supplemental Study (SS) nor an Environmental Assessment (EA) is required to implement the project as discussed in the attached Limited Environmental Review (LER). Consequently, a Finding of No Significant Impact is being issued for this project.

The Water Pollution Control Loan Fund program requires the inclusion of environmental factors in the decision-making process for project approval. Ohio EPA has done this by incorporating a detailed analysis of the environmental effects of the proposed action in its review and approval process. Environmental information was developed as part of the facilities plan, as well as through the facilities plan review process. A subsequent review by this Agency has found that the proposed action does not require the preparation of either an EA or an SS.

Our environmental review concluded that because the proposed project is limited in scope and meets all applicable criteria, a LER is warranted.  To review the OEPA's Statement and the Summary of Need, please click on the links provided below.
 

Mahoning
Valley Sanitary District
Ongoing Capital Improvement Projects
 
 
PROJECT COST SUMMARY SHEET
PROJECT NAME
DESIGN CONTRACTOR
COST OF DESIGN
ESTIMATION OF CONSTRUCTION COSTS
Dam Gate House and Flow Metering
Being Completed by DLZ
$177,087.00
$1,586,000.00
Distribution System Valve Replacement
Being Completed by CT Consultants
$129,000.00
$2,251,000.00
Water Treatment Plant
Being Completed by ms Consultants
$1,248,177.00
$17,000,000.00
Physical Protection System Phase II
Completed
$197,000.00
$344,000.00
 
 
The Mahoning Valley Sanitary District is completing the design of three major improvements associated with the purification and distribution of water to 220,000 people in Trumbull and Mahoning Counties. This design work is being done in conjunction with a Water Supply Revolving Loan from the OEPA in the amount of 1.65 million dollars. A fourth project’s design for a physical protection system has been completed and is ready for installation depending on the availability of funding. The improvements are as follows:
 
Dam Gate House and Flow Metering Improvements
 
The Dam Gate House Improvements involve the replacement of four (4) internal sluice gates. Two (2) of the sluice gates (6 feet by 6 feet) are to control the intake of raw  water from the Meander Reservoir for treatment. The other two (2) sluice gates (4 feet by 6 feet) are in series and are for discharging water, if necessary, from the reservoir directly to Meander Creek. This project also involves the replacement of 30 trash (debris) racks on the Gatehouse’s submerged intake openings and the manufacturing of 30 to 40 stop logs used to isolate the above referenced sluice gates for maintenance. Additionally, the original plant flow meters (installed in 1932) used to register billable water consumption by Niles and Youngstown will be replaced. 
 
Distribution System Valve Replacement Improvements (Phase I)
 
The Distribution System Valve Improvements would systematically phase in the replacement of valves and blowoffs in the distribution system, due to their age and poor condition. The first phase involves the replacement of key distribution valves at the interconnections with the City of Niles’ and City of Youngstown’s Water Distribution Systems and at the cross connections between the District’s transmission mains allowing for redundant water service. The project also involves the replacement of two blowoffs. 
                                                      
The valves and blowoffs to be replaced in Phase I are as follows:
 
PHASE IA
VALVE IDENTIFICATION
NW-17X
20" Gate Valve Cross Connection -Niles Route 46
YE-16X
24" Cross Connection at Webb Road
YW-15X
24" Gate Valve Cross Connection at Webb Road Pump Station
Y48-XCI
24" Gate Valve Cross Connection
Y48-1
42" Butterfly
NWB-89
Blow-Off South and Second Street (6")
NEB-60
Blow-Off, off Niles Carver Road (6")
PHASE IB
 
YE-68
Tie-in at City of Youngstown -36" Gate Valve
YW-69
Tie-in at City of Youngstown -36" Gate Valve
YW-7IXC
Tie-in at City of Youngstown -36" Gate Valve
YW-73XC
Tie-in at City of Youngstown -36" Gate Valve
NE-42
Tie-in at Niles Robbins Avenue -20" Gate Valve
NW-45
Tie-in at Niles Water Street -20" Gate Valve
Y48-4
County Line Road -48" Gate Valve Interconnection
Y48-5
Webb Road Pump Station -48" Gate Valve Cross Connection
PHASE IC
 
Y48-6X
Webb Road Pump Station -48" Gate Valve Cross Connection
Y-48
New Valve at the Water Treatment Plant
 
 
Water Treatment Plant Improvements
 
The Water Treatment Plant Improvement involves replacing the existing six (6) conventional settling basins that are technologically outdated and in very poor condition with a more efficient and effective settling process. This replacement would involve the construction of two large innovative diameter solids contact clarifiers along with new chemical feed systems to aid in the settling of particles from the raw water. The project would also allow for the control of flow to the clarifiers by constructing new raw water flow meters and a flow distribution structure. MVSD has long recognized that improvements to the chemical addition and settling processes are necessary to improve water quality as efficiently and economically as possible.
 
The plant improvements would also involve the construction of a new recarbonation system. An old system was abandoned in the 1970’s because of its age (1930’s) and the process being cumbersome, inefficient and unsafe. Recarbonation allows for the removal of excessive calcium carbonate from the water softening process which causes large amounts of scaling (deposits) in the plant, distribution and customer’s plumbing systems.  
 
Calcium carbonate deposition has a negative effect on efficient operations and is costly to the District, homeowners and businesses.  The Re-carbonation Improvements will provide for better quality potable water and reduce operation and maintenance costs.
 
Physical Protection System Improvements
 
Back in 2005, the District developed detailed drawing and specifications for a Physical Protection System for the Meander Water Treatment Plant.  The first phase of these improvements was completed in 2005. Additional improvements involve another automated gate, cameras, lighting, motion detection, and keyless entry equipment for the buildings and surrounding plant grounds. 

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