Secondary Wastewater Facility
Description: This is Modesto's wastewater's last stop
prior to being released into the San Joaquin River. The treatment
plant and its surrounding canals, fields, and ponds is one of the
best birding spots in Stanislaus County. Access is limited. This site is no
longer “Sewer Ponds” but an industrial facility with
a major construction process incorporated in its
daily life for the next 10 years or so. They have
designated the second Saturday each month for the
birdwatchers between 7:45 AM and 3:00 PM only. A 5
day advance notice is required.
Ph.: 209- 342-4501.
firstname.lastname@example.org (Primary contact,
OR Joel Lindsey
Visitors will be met at the front gate and must sign in at the front office and receive a map of the
facility, written instructions and sign a liability
waiver form. After the visit they will need to sign
From Modesto take Carpenter Rd. or
Crowslanding Rd. south. Turn right (west) on Keyes Rd. Continue
west on Keyes Rd. to the stop sign at Jennings Rd. Turn left
(south) on Jennings Rd. The entrance to the facility is past Keyes
Rd on the right. at the bend in the road.
From Hwy 99 in Turlock take West Main Rd. (west) 10.4 miles and
turn right (north) on Jennings Rd. The entrance to the facility is 2 miles ahead on
the left, just before the bend in the road.
Birding Information: The ponds are a magnet for
waterfowl and shorebirds during the appropriate time of the year.
Thousands of waterfowl and shorebirds in the winter make this a
spectacular place to visit. The list of bird species is rather
lengthy: Horned Grebe, White-faced Ibis, Brant, Tufted Duck,
Greater Scaup, Long-tailed Duck, Surf Scoter, Hooded Merganser, Osprey,
Bald Eagle, Peregrine Falcon, Merlin, Pacific Golden-Plover, American
Golden-Plover, Snowy Plover, Willet, Wandering Tattler, Ruddy
Turnstone, Red Knot, Sanderling, Semipalmated Sandpiper, Baird's
Sandpiper, Pectoral Sandpiper, Short-billed Dowitcher,
Long-tailed Jaeger, Franklin's Gull, Mew Gull, Thayer's Gull,
Western Gull, Glaucous-winged Gull, Glaucous Gull, Sabine's Gull,
Black Tern, Common Tern, Bank Swallow and Swamp Sparrow.
“IT’S FOR THE BIRDS”
Wastewater Treatment Plant of the City of
is once again open for bird watching by appointment
We are making our plant
accessible to the public on the second Saturday of
each month for bird watching.
The process is as follows:
Make an appointment at least
days in advance by calling
Meet operator at the gate at the agreed time
Sign in at the Main Office in the visitors book
Fill out the Liability Release form provided
Pick up a map which clearly identifies the areas
open to the public
Speed limit is 25 mph maximum
Do not cross any bridge with a
All bridges are off limits to the
Hours of Birding are from 7:45 am – 3:00 pm
is 7007 Jennings Road, Modesto, CA
Main office phone is 209-538-3256
and the operator phone on Saturday is 209-652-8662.
New Visitation Restrictions and
Please read this notice from the
management at the ponds:
Notice from the Secondary Wastewater Facility