Appendix 5A. Comments from MHE on Site Plans and CPV Valley Responses

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1 Appendix 5A Comments from MHE on Site Plans and CPV Valley Responses

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8 McGoey, Hauser and Edsall, P.C. 33 Airport Center Drive, Suite 202 New Windsor, NY April 17, 2009 Re: CPV Site Plan NYS Route 6 Town of Wawayanda, Orange County, N.Y. Attn: Pat Hines, Town Engineer Dear Pat, Pursuant to our meeting with you at your office on March 17, 2009, enclosed please find one set of revised plans to depict the following changes per your technical review dated February 13, Please be advised that sheet numbers have changed since there have been sheets added and deleted. The sheet numbers referenced are based upon the old set of plans for consistency. Sheet No. SP-1: 1. The conceptual design of off-site water and sewer process supply and process return mains and pump stations have been provided on the plans as requested. Detailed design of off-site process lines will be provided between preliminary and final approval. 2. The potable water and sanitary sewer usage agreement with the Town of Wawayanda will be executed between preliminary and final site plan approval. 3. The overhead transmission utility lines are now shown on the site plans as requested. 4. The Water flow and pressure analysis for the fire protection system shall be provided directly by the architect after preliminary approval and prior to final approval.

9 Sheet No. SP-2: 1. A lot line consolidation map showing all lot lines to be deleted has been provided on the plans as required. This map contains a planning board signature stamp as this sheet must be filed in the Orange County Clerk s Office. Sheet No. SP-3: 1. The recreation fee note on sheet SP-3 has been removed. 2. Zoning setback lines are now shown on the plans. 3. The NYSDOT entrance plan has been completed and is included as part of the plan set. 4. Top and bottom of wall elevations have been added at appropriate intervals for the retaining walls on the site plan as requested. 5. The note on sheet SP-3 has been revised to reflect the use OR storage of sodium chloride. 6. Parking calculations have been provided on the plans as requested. 7. The actual front yard setback has been provided in the bulk table. 8. The bulk requirements table on sheet SP-3 has been revised to show variances required, stack height and corrected front yard setback as requested. 9. Stack height has been added to the building structure table with a note that a variance is not required per town code. 10. The lettering in the upper left hand corner of sheet SP-3 has been clarified. Sheet No. SP-4: 1. Peak water flow for domestic usage will not exceed 10 GPM. There is no laundry or cooking facilities, only commodes and sinks for employees. The domestic pressures will be in the range of psi based upon conversations with Jeff Mills on April 20, A water meter pit detail has been added to the plans. A meter pit detail has been provided and complies with Town of Wawayanda water dept. requirements which include a Badger water meter with a meter pit transducer and Orion Read Technology.

10 3. Access has been provided to the snow storage area. The contours have been revised accordingly. 4. A note has been added to sheet SP-4 that there will be no access to the NYSDOT highway from the temporary laydown area. 5. The conceptual design of the off-site water and sewer process supply and process return mains and pump stations have been provided on the plans as requested. 6. The size, height and diameter of all tanks have been provided on the plans as requested. 7. All retaining walls now show top of wall and bottom of wall dimensions at appropriate intervals as requested. 8. Guide rails have been provided on the plans for the westerly retaining walls. A detail of same has been included on the plans as requested. 9. A hydrant detail has been provided and now indicates that all hydrants shall be green color coded with a stamped decal indicated NON-POTABLE. 10. The hydrant adjacent to CB 9 has been relocated to the other side of the road next to CB 8 as requested. 11. In addition, the hydrant next to the cooler condenser has been relocated to the other side of the road to be more easily accessible as requested. 12. A sidewalk and handicap ramp have been provided for the handicap stalls as required. A detail of the sidewalk and the handicap ramp have been included on the plans. 13. The handicap ramp and handicap ramp detail have been included on the plans as required. 14. Reference to Oily water separator has been removed. It has been corrected to an Oil/Water Separator and a detail of same has been included on the plans. 15. The site grading has been revised to show grading for curbing. A curbing detail has also been added to the plans as required. 16. A detail for both the curb type and yard type catch basin are now shown on the plans. The storm water piping schedule now includes rim and invert elevations for yard drains. 17. Finished floor elevations has been provided for all buildings.

11 18. All roads have been revised to be 26 feet wide. They have been dimensioned as such on the plans. A cross section detail has been provided on the plans as requested. 19. The site plans now reflect no parking fire zones spaced appropriately throughout the site. 20. The note on sheet SP-4 referring to interior installation of water meters has been removed. A meter pit detail has been provided and complies with Town of Wawayanda water dept. requirements which include a Badger water meter with a meter pit transducer and Orion Read Technology. 21. The plans have been revised to show additional fencing along the I-84 ROW. The new fence will be installed just to the inside of the existing Thruway Authority fence. 22. FES inverts have been provided for all pipes entering the storm water detention pond. 23. Flared end sections have been provided for all outlets to the storm water pond. A detail of same is included on the plans as required. 24. The fuel secondary containment detail has been revised to give sufficient detail regarding sizing, height, dimensioning and drainage. Calculations for sizing the secondary containment tank are attached. 25. Spot elevations have been provided in the area of the easterly snow storage area to verify adequate drainage. 26. The invert of the 30 storm water pond discharge pipe has been provided on the plans. The grading has been revised to assure pipe cover as needed. The proposed fence has been shifted to keep the pipe outlet within the fence interior for security protection. 27. The storm water detention pond now includes an aquatic bench, chain link fence and a guide rail for adequate protection. 28. A guide rail has been added around the storm water detention pond as required. Sheet No. SP-5: 1. A reclamation note has been added to sheet SP-5 as requested. Sheet No. SP-6: 1. The landscaping plan has been revised by Karen Arent based upon comments received by Robert Hansen.

12 2. All landscaping details (excluding wetland mitigation landscaping/plantings) are included on the landscaping plan. All other details pertaining to landscaping have been removed so as not to conflict with the landscaping plan. Sheet No. SP-7: 1. The lighting plan is now consistent. All lighting details are now shown on the lighting plan. Other lighting details have been removed from the plans. 2. A note has been placed on the plans indicating that the lighting plan complies with Town of Wawayanda lighting standards. 3. There is now only one light pole detail on the lighting plan which specifies pole height. Sheet No. SP-9: 1. Lighting details are now only one the lighting plan and landscaping details only on the landscaping plan. Sheet No. SP-10: 1. There is now a curb type catch basin detail. 2. There is now a yard type catch basin detail. 3. Reference to the Town Engineer has been removed from all utility trench details as requested. 4. Reference to heavy duty cast iron pipe has been removed from the sanitary sewer trench detail. 5. There is now only one security fence detail shown on the plans. 6. The curtain drain detail has been removed from the plans. 7. The Water Quality Inlet Detail is not proposed and has been removed from the plans. It has been replaced with the Oil/Water Separator detail.

13 8. Pipe restrained joints have been removed from the plans. Only thrust blocks are proposed. The plans now specify class 52 ductile iron pipe for the 8-inch fire mains. Sheet No. ES-4: 1. Sheet ES-4 has been eliminated from the plan set. All appropriate erosion and sediment control measures have been incorporated into the SWPPP plan sheets. Sheet No. ES-5: 1. All detail sheets have been revised to eliminate conflicting and/or duplicate details. 2. Regarding sheet ES-5, the plans have been revised to remove the Silt Fence and Stabilized Drive around Retaining Wall Detail. 3. Attached to this response letter are calculations for sizing all of the temporary sediment ponds during construction. In addition, calculations have been provided to confirm that 2 depth is all that is needed in the permanent pond to provide 3600 CF per acre volume storage. Therefore, the 21 diameter outlet will act as a discharge during construction. Also, a calculation to restrict the reverse flow pipe drain for the 10 year return frequency storm is also included. The reverse flow pipe must be reduced in size to a diameter of 2 during construction. 4. The outlet from the pond cannot be lowered and further. 5. The micropool and forebay will need to be pumped if necessary. The pond outlet structure has been modified to provide a sump and drain to allow for pumping at a future date. 6. The level spreader detail has also been removed from the plans. All erosion and sediment control details have been removed from the SP sheets and are now contained entirely on the ES sheets. Sheet No. ES-6: 1. Sediment calculations for sizing temporary sediment ponds are attached. 2. Calculations for sizing topsoil stockpiles are attached. More stockpiles were needed and the existing ones needed to be enlarged. 3. The outlet detail for temporary sediment ponds are included on this sheet.

14 4. Sediment basin no. 2 has been shifted to be outside the area of the fuel tank as requested. Sheet No. ES-7: 1. The outlet control structure and other SWPPP details have been coordinated. 2. The outlet control structure detail now shows a flat surface as the grade of the side slopes approaches the inlet. 3. This note has been modified to note the use of the pond during construction. There is enough volume within the pond to act as sediment basin without modifying outlet structures or elevations. Sheet No. ES-9: 1. This plan sheet has been upgraded with a planting schedule. Please note that the ACOE has commented per their review of March 17, 2009 and the plans have been revised to comply with ACOE requirements. Sheet No. ES-10: 1. See response comment ES-9. Sheet No. ES-11: 1. The fuel storage tank detail and secondary containment has been more detailed including wall thickness, height, concrete and provisions for drainage via a sump pump. A direct discharge will not be permitted by NYSDEC, even with a closed gate valve. 2. Only one chain link fence detail is now shown on the plans. 3. The headwall detail applies to the pipe outlet for the storm water detention pond. It is necessary due to the sharp drop in grade. This detail has been clarified.

15 Sheet No. ES-12: 1. Application to the NYSDEC cannot be completed until the Planning Board has issued a findings statement as lead agency under SEQRA. 2. Notes pertaining to the removal of the temporary access drive are included on sheet ES The gate has been modified to be a more secure chain link fence gate. The detail has been modified accordingly. Sheet No. ES-13: 1. Reference to Alternate 1 has been removed. This is the proposed method of sewage disposal. Rim and invert elevations have been provided for existing manholes. 2. The piping routing has now been shown on the plans. There are three pipes to be installed within the NYSDOT ROW. There will be one 3-inch domestic sewage force main, one 4-inch gray water process wastewater return force main and one 6-inch gray water process supply force main. These force mains are depicted on the off-site utility plans. Sheet No. ES-14: 1. The subsurface sewage disposal system design has been removed from the plans as the pump station and force main to the existing sewer main in NYS Route 6 will be constructed. 2. The engineering report for the sewage pump station has been completed and is attached. The pump on/pump off elevations are set to provide 3 pump cycles per day to eliminate anaerobic conditions. 3. All force main piping is now shown on the plans as requested. 4. The discharge pipe is a 2-inch diameter pipe. All reference should be to a 2-inch pipe. 5. Pump on/pump off elevations have been set accordingly.

16 6. The engineering report includes the make and model of the proposed pump and pump sizing calculations as required. Please feel free to contact me regarding any additional comments that you may have. Very truly yours, John V. Nosek, P.E., President Nosek Engineering