Wastewater Collection and
Transmission System
Carmel Sewer District No. 2
Carmel, NY
In conjunction with its WWTP expansion, the Town of Carmel desired to extend its existing collection system to serve all of Sewer District No. 2. Initial tasks included hydraulic evaluation of 10,000 feet of existing sewer, ranging from 8 to 16 inch diameter. Population projections based on census data and land use requirements ultimately determined the final system configuration.
Major tasks provided by JRFA included:
- facility report
- aerial base mapping and horizontal/vertical ground control
- public presentation
- routing studies and preliminary design
- subsurface investigations
- field routing check
- final design, contract documents and cost estimate
- easement identification
- permit negotiations
- approvals
- SRF funding
- construction administration
Much of the project runs through NYS and/or USACOE protected wetlands. Negotiations with both agencies resulted in a unique pile supported design of over 3,000 feet of 14-20 inch ductile iron sewer.
Major system components include:
- 6 miles of forcemain—3 to 12 inches
- 12 pump station ranging from 40 gpm to 1250 gpm
- 18 miles of gravity sewer—8 to 24 inches
- 80 individual grinder pump stations
- 5 trenchless highway crossings
- relief sewers and diversion chambers
Permits:
- NYCDEP Occupancy Permits in 3 separate locations
- NYCDEC Wetlands and Stream Disturbance Permits in over 30 locations
- USACOE Permits
- Putnam County Health Department Approvals
- NYSEFC Approval
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