(NAPA, Calif--) Work on the
five-mile pipeline that will ultimately deliver high-quality recycled
irrigation water to the Milliken-Sarco-Tulocay (MST) area east of Napa will
begin at the end of July, Napa County and Napa Sanitation District officials
announced today. The Sanitation District Board awarded the $7.6 million
pipeline construction contract to Sanco Pipelines, from the South Bay, and a
$2.4 million contract to build a booster pump station to GSE Construction of
When completed in 2015, the
pipeline is expected to initially deliver up to 700 acre-feet (228 million
gallons) of recycled water during the high-demand summer months, although the
pipeline will be large enough to carry up to 2,000 acre-feet in the future, as
more recycled water becomes available from NSD and more property owners opt to
use recycled water on their landscaping, vineyards and other crops.
Construction will primarily be
in County roadways.
“This is great news for the MST
area,” said District 5 Napa County Supervisor Keith Caldwell. “The groundwater
aquifer there is overdrafted by about 2,000 acre-feet per year and the day this
project is put into service, it will be able to deliver enough water to offset
up to 35 percent of that overdraft. That percentage will only grow as more
people opt in to use the water.”
“The Napa Sanitation District
is proud to partner with Napa County to construct this pipeline and expand
recycled water use,” Jill Techel, Napa mayor and chair of the Napa Sanitation
District Board, said. “Especially in this time of drought, it is important to
recover and reuse the valuable water resources we have available to us. This is
a great example of what can be accomplished with residents and local
governments work together to solve a common problem.”
The new section of recycled
water pipeline will run approximately five miles, from the northwest corner of
Skyline Park (on Imola Avenue) to the end of Third Avenue, at its intersection
with Hagen Road, adjacent to the Napa Valley Country Club, one of its primary
customers. A booster pump station will be built on Napa State Hospital grounds,
allowing the water pressure to remain high enough to reach the higher elevation
locations towards the end of the pipeline.
A combination of federal grants
and a very low interest (1 percent) State Revolving Fund loan of $10 million
from the Regional Water Quality Control Board will pay the total project cost
of about $13.3 million. Project staff has also applied for additional state
grants earmarked for drought relief. The RWQCB loan will be repaid over 20
years by the users of the recycled water, who will pay a special Community
Facilities District (CFD) tax on their property tax bill.
“Our grant and loan efforts
have been greatly helped by our membership in the North Bay Water Reuse
Authority,” Caldwell said. “The regional approach to using recycled water gave
weight to our applications.” The NBWRA includes several water and sewer
districts from Napa, Sonoma and Marin counties, dedicated to increasing state
and federal support of regional water recycling projects.
Although recycled water can
only be used for irrigation and landscaping purposes, there are a large number
of potential customers in the MST area, including many vineyard properties.
Approximately 350 acre-feet of water has already been subscribed, on an annual
basis, with significant capacity available for additional customers. One
acre-foot will irrigate approximately three acres of vineyard for a year.
“The Napa Sanitation District
is investing $15 million to expand our treatment process to produce the
recycled water that will flow to the MST area once we build the pipeline,” said
Tim Healy, general manager at Napa Sanitation District. “This investment will
allow us to deliver recycled water that has been treated to the highest
Interested property owners can
contact Deputy Director of Public Works Phillip Miller at (707) 259-8600 or firstname.lastname@example.org. As new members join the CFD,
each individual member’s Special Tax amount is reduced accordingly.
Participation is strictly voluntary.