Wednesday, Feb 22, 2012

Watershed Assessment 2004

The Pescadero-Butano Watershed Assessment was undertaken to assess current habitat conditions
for Coho salmon and Steelhead trout in the watershed, and to identify factors limiting the quality
and extent of salmonid habitat. The overall goal of the project is to develop a scientific basis for
future management plans and actions related to restoration of the watershed and the salmonid
fishery. The specific objectives of the project are as follows:

1. Characterize the watershed and identify the areas of remaining high quality salmonid
habitat, that should receive high priority for conservation and restoration treatments;
2. Identify the factors and anthropogenic processes limiting the quality of salmonid habitat in
the watershed, and water quality generally.
3. Identify the most cost-effective treatments for improving salmonid habitat, and the areas
where these should be employed.

Historically, both Pescadero Creek and Butano Creek, as well as several tributary streams,
supported runs of Steelhead trout and Coho salmon. Steelhead are still present, but there have
been only sparse reports of Coho salmon in the watershed in recent years. Both streams are listed
under the federal Clean Water Act as impaired water bodies for sediment. It should be noted that
this assessment is not intended to substitute for, nor to form the basis for the development of
Total Maximum Daily Loads (TMDL) for the basin, though the study may be useful to others
undertaking their development.

The Pescadero-Butano watershed has been the subject of several past studies, as well as actions
and efforts by local residents to investigate and solve problems associated with the streams,
including flooding, landsliding, impaired water quality, and the declining fish population. The
Pescadero-Butano Watershed Assessment builds on past studies, and includes several discrete
new studies. These include a land use history (Chapter 3); a hydrologic analysis of the watershed,
focusing on the USGS stream gauging record (Chapter 4) and a study of the changes in stream
bed elevation at several County road bridges (Chapter 5); a geomorphic study of the watershed,
including an analysis of sediment sources and erosion rates since 1937 (Chapter 6) and current
geomorphology of stream channels (Chapter 7); and an assessment of current ecological
conditions, focusing on the quality of salmonid spawning and rearing habitat, and specific
impairments to salmonid habitat (Chapter 8). All of these studies are synthesized and conclusions
are presented in Chapter 2……….

Check out the full report here in pdf format.

 

Help to Restore the Marsh!

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*ESTIMATES: STEEHEAD REARING*
*click to view

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Heron and other predatory birds were seen feeding on the shorelines.

November 25, 2010

January 3, 2008

KGO news report 2010

KGO news report 2003

Quotes From News Article, Reports, and Resources

“We’re now 15 years in and the problem is still unsolved. When the system is in utter collapse, you don’t study that. You take action,” said Ronda Azevado Lucas, an attorney representing a group of Pescadero anglers and concerned citizens who are about to file a lawsuit accusing state resources agencies of abdicating their responsibility to protect sensitive fish and amphibians under the California Endangered Species Act.”

“Everyone acknowledges something went wrong in the 1990s, when State Parks, which owns the marsh, re-engineered the water flow with levees, culverts and water gates. Many of these fixes quickly became defective but were left in place.”

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“North Marsh was to have been kept no more than mildly brackish, to ensure habitat for
red-legged frogs. However, saline water spilled over the low levee and filled the marsh within
months of the completion of the levee in 1993. In March 1994 the salinity of the Marsh (F2),
the ditch along the south side (El) and the sag ponds (Sl) exceeded 6.6 PPT (Table 1) and
remained saline all year.” (Smith and Reis).

(more ...)

“If you or I owned this property, we’d definitely be in jail. There are endangered species here that are in peril,” said Ronda Azevado Lucas, an attorney representing the plaintiffs. “We were ignored, and that’s why we’re in court. We had no other options.”

“In the fall months, decomposing vegetation and the water column’s salty, sulfuric underlayers use up all the oxygen in the water, which essentially suffocates the aquatic ecosystem. The salty, sulfurous layers typically remain on the bottom of the marsh ponds, and aquatic species are able to veer away from low-oxygen areas. But in late fall, when the ocean waves burst through the sandbars, the currents stir up toxic layers in the lagoons and quickly make the water lethal.”

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“Each year of the past decade, as fall becomes winter, the Pescadero fisherman watches the silver bodies of steelhead trout wash up on the banks at Pescadero Marsh, hoping the government will heed his call for intervention and respond with action. It’s not happening fast enough.”

“My view on it is State Parks should be given a letter of intent which clearly describes the problems everyone has with the way State Parks is doing things, and (the department) should be given a chance to respond,” Steel said. “Once that’s on the table, it’s up to Parks. But if they continue to block everyone’s concerns without explaining the rationale for doing so, I have a feeling (the Native Sons) will file suit.”

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“Around this time each year, the sandbar separating Pescadero Marsh from the Pacific Ocean breaks, ushering in another season for fishing steelhead trout and, to varying degrees, another episode of what Coastsiders call the “fish kill.” It’s a yearly phenomenon in which fish turn up dead at a critical point in their lifecycle.”

“When the sandbar broke, a passerby mistook the out pour of brackish marsh water in the ocean for an oil spill, and reported the ominous black cloud to Fish and Game.”

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