Author Archives: creative

Calling all Classroom Teachers!

MVSD is partnering with the Lindsay Wildlife Experience to provide 3, new 1-hour classroom programs for elementary school students in Contra Costa County. These wetland and pollution prevention themed programs will be available October 2017- January 2018. Program Choices include:

  • Craft a Wetland Critter
  • Water Quality for Life
  • Wetland Wonders

These programs are perfect for 3rd, 4th, and 5th grade students. Contact Stephanie Seregin at or 925-228-5635 x10 to learn more and book your classroom programs today!

Construction Completed through the week ending September 29, 2017

Following is a summary of main work items performed recently:

  • Completed keyways in ponds D and E.
  • Continued reconstruction of the levees in ponds E and D utilizing geogrid.
  • Continued moisture conditioning pond soils.
  • Continued dewatering local ponding water in pond E.
  • Removed unsuitable concrete fill from existing levees in pond D and placed as foundation for island.
  • Removed pipe culverts and weirs between ponds C and D and between ponds D and E.
  • Wallace-Kuhl (field geotechnical) took in-situ density tests and moisture contents for compacted levee keyways and levee reconstruction

Upcoming work:

  • Complete levee keyway in pond C.
  • Continue excavation and forming the deep water channels in ponds C, D and E.
  • Continue reconstruction of the levees in ponds C, D and E utilizing geogrid.
  • Cut/fill and grade pond bottoms to correct elevations.
  • Start removing and replacing water control structures.
Otter photo

The River Otter Ecology Project (ROEP) Produces Second Report for MVSD

MVSD and ROEP began a partnership in September 2016 to better understand the population of North American River Otters in the Peyton Slough Wetlands. This second report from ROEP highlights what was learned in the first 10 months of the study including otter presence, abundance and habitat use within Moorhen and McNabney marshes, sex ratios, and recommendations for mitigating disturbance to otter populations for tide gate closures and the Moorhen Marsh Western Pond Turtle Habitat Enhancement Project in 2017 and 2018.

We are also pleased to announce that we will be adding a prey study later this year to better understand otter diet and foraging ecology in the wetlands. To access the latest report, please click on the link below.

River Otter Study – Second Report (July 2017)
MVSD River Otter Study Interim Report (February 2017)

Construction Updates – Week of June 26, 2017

Week of June 26, 2017

  • Notice to Proceed (NTP) was issued to Water Rock Construction on June 14, 2017.  NTP allows the contractor to begin work on the project.
  • Public access to Moorhen Marsh was closed on June 14, 2017 in order to allow the contractor to begin working in the marsh.
  • Once the NTP was issued, the contractor began mobilizing the necessary equipment and materials to begin construction work.
  • Construction activity began on the site on June 20, 2017.
  • The contractor is currently completing the de-watering process in ponds D and E.


MVSD is pleased to announce that Brian Danley is now a member of the Board of Directors. Brian Danley was appointed to fill a vacancy as allowed for by California Government Code Section 1780 and MVSD Board Policy B-70.