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WCIECA's
Erosion Patrol will report here on the good (and bad) erosion
control projects that we find to increase the knowledge of our
members. If you have an Erosion Patrol finding to add,
please contact info@watershedrestoration.org.
Members
of the Sacramento Watersheds Action Group (SWAG) discovered
excessive turbidity within Harlan Creek, an urban salmon and
trout spawning stream in Redding, Northern California.
The SWAG Erosion Patrol Team contacted EPA officials when
they discovered the sediment was discharging from a 10 acre
site upstream which had no surface erosion control, and a
few inefficient, undersized erosion control measures.
For Immediate
Release: December 4, 2000
EPA
FINES REDDING DEVELOPERS $60,000 FOR STORMWATER VIOLATIONS
Violations Endangered Salmon Habitats
SAN FRANCISCO
The U.S. Environmental Protection Agency fined two developers
$60,000 today for stormwater pollution violations at the Buena
Ventura Boulevard Extension in Redding, Calif. that resulted
in large amounts of sediment and silt runoff into Sacramento
River tributaries.
Jaxon Enterprises,
Inc. and Creative Living are being cited for poor erosion
and sediment control at a 74-acre subdivision
Stanford Hills and River Knolls being built near
Keswick Dam in northwest Redding. While the project
construction was delayed several years, a rough- graded roadway
and a large cleared area were left exposed to winter rains
with no effective temporary erosion cover and minimal sediment
control measures. As a result, large amounts of silt
and sediment were discharged into Harland Creek, endangering
a local salmon habitat.
For sites 5 acres
or larger, the federal Clean Water Act requires that developers
and contractors maintain and implement stormwater pollution
prevention plans that include erosion and sediment control
measures, and an inspection program that ensures these measures
are maintained and improved as needed.
"Our penalty
could have been avoided if both effective erosion and sediment
control had been implemented and maintained on this site,"
said Alexis Strauss, director of the Water Division in the
U.S. EPA's Pacific Southwest Office. "Land owners, developers
and their contractors have a long-standing legal obligation
to maintain management practices for both erosion control,
the primary means of keeping soil in place, and sediment control,
a secondary means to ensure that sediment in stormwater does
not pollute waterways during the build-out process."
During construction,
the Clean Water Act requires that temporary erosion control
products such as seeding, mulch, and rolled blankets
or other suitable ground cover must be installed
over inactive rough or final graded areas. A recent study
conducted at Shasta College in Redding, along with other studies,
have shown that these types of products reduce erosion by
about 80 percent as compared to bare soil. Sediment
control devices, such as desilting basins, generally provide
a minimal barrier to trap sediment leaving a site and cannot
be relied on as the sole method of compliance.
Jaxon and Creative
Living are being cited for the following violations:
An exposed rough-graded
roadway, cut slopes and other cleared areas excessively eroded
and discharged into Harland Creek as a result of a lack of
erosion control measures before the start of the rainy season.
Sediment controls,
such as hay bales, silt fences and berms, were ineffective
in preventing sediment runoff.
A stormwater
pollution prevention plan was not properly implemented.
Sediment from
construction sites often ends up in streams and rivers, choking
plant and animal life and filling in salmon spawning gravels.
Many pollutants such as oil and grease from various sources
also bind to sediments, and are then transported into waterways
along with the sediment.
EPA investigators
inspected the site in 1998 and again in 1999 after the Central
Valley Regional Water Quality Control Board had issued two
earlier violation notices that went unheeded.
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1)
Large area of disturbance in Redding, CA. The site
received no surface stabilization for two winters |
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2)
EPA Inspector demonstrates how silt fences were improperly
installed. |
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3)
EPA Inspector notes sediment leaving improperly designed
sediment basin, far too small for 10+ acre drainage area.
|
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4)
Harlan Creek at Sacramento River Trail, downstream from
construction site, with high turbidity. |
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5)
Harlan Creek entering the Sacramento River. |
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6)
Highly productive salmonid spawning area impacted by turbidity/sediment
from Harlan Creek. |
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