HomeMy WebLinkAboutSUB201900030 Review Comments 2019-03-22Rivanna Water & Sewer Authority (RWSA)
General Water & Sanitary Sewer Notes
Last Revised: April 2016
1. All materials and methods of construction shall comply with the latest version of the General
Water and Sewer Design and Construction Standards — Version 1.0, adopted in December 2015,
except as modified below or modified in special notes.
2. RWSA shall approve all construction materials and methods of construction. A preconstruction
conference shall be held with RWSA prior to the start of any work.
3. The contractor shall be responsible for notifying Miss Utility (1-800-552-7001).
4. RWSA Engineer (Victoria Fort at (434) 977-2970 ext. 205) shall be notified three business days
prior to the start of construction.
5. All work is subject to inspection by RWSA staff. No tie-ins to the existing system shall be made
without coordination with and the presence of RWSA staff. No work shall be conducted on
RWSA facilities on weekends or holidays without special written permission from RWSA.
6. For sanitary sewer line construction: RWSA may require bypass pumping for tie-ins to the
existing system. All doghouse manholes must be pressure -tested before a connection is made to
the system.
7. The location of existing utilities as shown on the plans is from data available at the time of design
and is not necessarily complete or accurate. The Contractor shall be responsible for the
verification of the location, size and depth of all existing utilities, both surface and subsurface.
The Contractor shall immediately notify the Engineer of any discrepancies between the plans and
field conditions. The Contractor shall use due diligence to protect all utilities and structures from
damage at all times, whether shown on the plans or not. Damage to any existing utilities shall be
repaired by the Contractor to the original condition at no additional cost to the Owner.
8. Erosion and sediment control facilities shall not be permitted in the RWSA easement without
special written permission from RWSA. No grading shall be permitted in the RWSA easement
unless permitted otherwise by RWSA in writing.
9. No blasting shall be permitted within 100 feet of RWSA facilities without written permission and
RWSA approval of the blasting plan. Ground monitoring during blasting and a pre -blast survey
may be required. For blasting within 100 feet of any operative RWSA sewerlines, bypass
pumping and/or pre- and post -CCTV may be required. RWSA may also require certification
from a licensed professional engineer stating that the proposed blasting will not damage any
RWSA facilities. Damage to any utilities due to blasting shall be repaired by the Contractor to
the original condition at no additional cost to the Owner.
10. The contractor shall observe minimum separation requirements for utility crossings. When a
crossing is made under an existing facility, adequate structural support shall be provided for the
existing pipe. The area of the crossing shall be backfilled with compacted 57 stone to the
springline of the existing pipe.
11. New water main installations shall be pressure tested, chlorinated, flushed and have water
samples approved prior to making any permanent connection to the public water system.
Approved methods of filling and flushing new water mains will be required to prevent any
contamination of the public water system.
12. All easements for new RWSA facilities shall be recorded prior to placing the new facilities into
service.
13. No permanent structural facilities will be permitted in the RWSA easement. This includes
building overhangs, retaining walls, footers for any structure, drainage structures, etc.
14. Trees are not permitted in the RWSA easement.