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LA Regional Water Quality Control Board Meeting Sediment Pollution Discussion

LA Regional Water Quality Control Board Meeting Sediment Pollution Discussion Bioassessment in California April 1, 2008. Angie Montalvo Environmental Scientist CDFG-OSPR Water Pollution Control Laboratory Aquatic Bioassessment Laboratory 2005 Nimbus Road Gold River, CA 95670

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LA Regional Water Quality Control Board Meeting Sediment Pollution Discussion

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  1. LA Regional Water Quality Control Board Meeting Sediment Pollution Discussion Bioassessment in California April 1, 2008 Angie Montalvo Environmental Scientist CDFG-OSPR Water Pollution Control Laboratory Aquatic Bioassessment Laboratory 2005 Nimbus Road Gold River, CA 95670 Office: 916.358.4398 Fax: 916.985.4301

  2. BIOASSESSMENT AS AN ENFORCEMENT TOOL What is Bioassessment? • It is an evaluation of the biological conditions of a waterbody that uses biological surveys of the resident biota, including plants, animals, and other living organisms that depend upon the aquatic resource.

  3. BIOASSESSMENT AS AN ENFORCEMENT TOOL Why use Bioassessment? • Cost-effective tool • Multi-habitat approach (riffle, run and pool) • No holding time requirement for samples • Unlike fish, benthos cannot move around as much so they are less able to escape the effects of sediment and other pollutants that diminish water quality. Therefore, benthos can give us reliable information on lotic and lentic water quality. • Benthos represents an extremely diverse group of aquatic animals, and the large number of species possess a wide range of responses to stressors such as organic pollutants, sediments, and toxicants (TV). • Many BMI are long-lived, allowing detection of past pollution events such as pesticide spills and illegal dumping.

  4. BIOASSESSMENT AS AN ENFORCEMENT TOOL What are Benthic Macroinvertebrates (BMIs) Freshwater benthic macroinvertebrates, or more simply "benthos", are animals without backbones that are larger than ½ millimeter (0.5 mm). These animals live on rocks, logs, sediment, debris and aquatic plants during some period in their life. The benthos include crustaceans such as crayfish, mollusks such as clams and snails, aquatic worms and the immature forms of aquatic insects such as stonefly and mayfly nymphs.

  5. CDFG Aquatic Bioassessment Laboratory Facilities: Gold River and Chico State University

  6. Water Pollution Control Laboratory, WPCL Aquatic Bioassessment Laboratory, ABL 2005 Nimbus Road Gold River, CA 95670 Main Office: 916.358.2858

  7. CDFG’s Aquatic Bioassessment Laboratory Chico State University Research Foundation

  8. CSBP PROTOCOL BRIEF – 1993, 1996, 1999, 2003,2008 (in review)

  9. California Stream Bioassessment Procedure (CSBP) Pollution Method 0.5 mm Mesh Net/ #35 sieve D-frame Kick Net Multi-habitat (riffle, run & pool) Sample 18 ft2 area per habitat type 3 Replicates per transect 3 Transects per habitat type BMIs are good indicators of stream health

  10. California Stream Bioassessment Procedure (CSBP) Pollution Method • Quantify: • Canopy/ In-Stream Cover • Stream Channel Size • Substrate Composition • Flow • Gradient • Pebble Counts Physical Habitat

  11. Sediment Spills Using Bioassessmentfrom 1993 thru 2003 Middle Butte Creek - Oct 1993, Butte County Little Butte Creek - May 1994, Butte County Wild Iris Creek - Jun 1997, Mendocino County Hangtown Creek – Sep 1998, El Dorado County Slug Canyon Creek - Jul 1999, Sierra County Willow Creek - May 1999, Calaveras County Wine Creek - Jan 2001, Sonoma County Weber Creek - Jan thru March 2001, El Dorado County Forsythe Creek - Mar 2001, Mendocino County Salt Hollow Creek - Nov 2001, Mendocino County Kern River - May 2001, Kern County Bear River - Feb 2002, Placer County Scott Creek - Jun 2001 thru January 2003, Mendocino County Morrison Creek - Dec 2002 thru March 2003, Sacramento County Butte Creek - Jul 2003, El Dorado County Bear Creek, SF - Aug 2003 thru Sep 2003, Shasta County Clear Creek I - Aug 2003, El Dorado County

  12. Sediment Spills Using Bioassessmentfrom 2004 thru 2007 Tombs Creek - Jan thru Mar 2004, Sonoma County Las Virgenes Creek I & II - Mar thru Oct 2004, Los Angeles County Clear Creek II - Sep 2004, El Dorado County Las Virgenes Creek III - Jan 2005, Los Angeles County Mormon Slough - Feb 2005, Calaveras County Grizzly Creek - May 2004 thru May 2005, Sierra County Mill Creek - Dec 2004 thru October 2005, Mendocino County NF Clear Creek III - Oct 2005, El Dorado County Dry Creek - Jan & May 2006, Mendocino County NF Morrison Creek - Mar 2006, Sacramento County Coyote Creek & Unnamed Tributary - Apr 2006, Placer County Unnamed Tributary & Lake Tulloch - Apr 2006, Calaveras County (Calypso) Unnamed Tributary & Lake Tulloch - Apr 2006, Calaveras County (Denova) Dry Creek - May 2006, Sonoma County McGee Creek - Aug 2006, Mono County Eel River – Sep 2006 – Oct 2007, Mendocino County Big Grizzly Creek - Dec 2006, Sierra County Majors Creek - Dec 2006, Santa Cruz County Cedar Creek – May 2007, San Diego County Arroyo Mocho & Arroyo Las Pasitas Creek, May 2007, Alameda County

  13. Chemical Spills Using Bioassessmentfrom 1994 thru 2003 Philbrook Creek (carr mine drainage) - Jun 1994, Butte County Deer Creek (chlorine) - Apr 1997, El Dorado County Amerada-Hess (condensate) - Feb 1998, Solano County Suisun Creek (pesticides) - Jan 1999 Solano County Goose Creek (copper sulfate) - Apr 2001, Shasta County Cherokee Creek (paint remover) - Aug 2001, Calaveras County Flood Channel/Plumber Creek (chlorine) - Oct 2001, Alameda County Lytton Creek (wine waste) - Feb 2002, Sonoma County Los Trancos Creek (unknown) - Apr 2002, San Mateo County Ruby Springs (limestone mining) - Apr 2002, San Bernardino County Stenner Creek (chlorine) - Apr 2002, San Luis Obispo County Morrison Creek (concrete waste) - Dec 2002, Sacramento County San Lorenzo River (pesticides) - Feb 2003, Santa Cruz County

  14. Chemical Spills Using Bioassessmentfrom 2004 to 2007 Arroyo Las Positas Creek (lubricants) – Apr 2004, Alameda County Piner Creek (chlorine) – Nov 2004, Sonoma County New York Creek (flyash) – Oct 2005, El Dorado County NF Clear Creek (chlorine & sediment) – Oct 2005, El Dorado County Bear Creek Trib. & Vernal Pools (manure waste) - Oct 2005, San Joaquin County Little Indian Creek (chlorine) - Mar 2006, Amador County Unnamed Tributary & Spring (olive waste) - Sep 2006, San Joaquin County NF Clear Creek (chlorine) - May 2006, El Dorado County Deer Creek (chlorine) - May 2006, Nevada County Oakland Ponds (salts) - Aug 2006, Alameda County Burney Creek (black ash) - Oct 2006, Shasta County New York Creek (chlorine & sediment) - Oct 2006, El Dorado County Uvas Creek (garlic waste) - Feb 2007, Santa Clara County Carson Creek (chlorine) – Oct 2007, El Dorado County

  15. Petroleum Spills Using Bioassessmentfrom 1997 thru 2007 Summit Creek - Feb 1997, Nevada County Van Norden – Feb 1997, Nevada County Santa Paula River - Apr 2000, Ventura County East Walker River - Dec 2000, Mono County James Creek - Mar 2001, Mendocino County Weaver Creek - Apr 2002, Trinity County Escondido Creek - Jul 2002, San Diego County Suisun Marsh - Apr 2004, Solano County Summit Creek - Mar 2005, Nevada County Tarr Creek - Feb 2007, Ventura County

  16. Biological MetricsRelative Abundance & Density • Abundance (# of organisms/ sample) • Density (# of organisms/ 18 ft² of riffle-run substrate)

  17. Biological Metrics CompositionMeasures • EPT Index (%) • Sensitive EPT Index (%) • Percent Baetidae • Percent Chironomidae • Percent Hydropsychidae • Percent Diptera • Percent Non-Insect Taxa • Shannon Diversity Index (SDI)

  18. Biological MetricsTolerance/Intolerance Measures • Tolerance Value (TV) • Percent Intolerant Organisms (0-2) • Percent Tolerant Organisms (8-10) • Percent Dominant Taxon

  19. Biological MetricsRichness Measures • Taxonomic Richness (TR) • Cumulative Taxa • Ephemeroptera Taxa • Plecoptera Taxa • Trichoptera Taxa • EPT Taxa • Chironomidae Taxa • Cumulative EPT Taxa • Dipteran Taxa • Non-Insect Taxa

  20. Biological MetricsFunctional Feeding Groups (FFG) • Percent Collector-Filterers (CF) • Percent Collector-Gatherers (CG) • Percent Predators (P) • Percent Shredders (SH) • Percent Omnivores (OM) • Percent Parasites (PA)

  21. Barr Property 1600/5650 Violations Dry Creek, Mendocino County Fall 2005 thru Spring 2006

  22. Anselmo Property 1600/5650 Violations SF Bear Creek, Shasta County Fall 2007 thru Spring 2008

  23. Peckham Property 1600/5650 Violations Cedar Creek, San Diego County Spring 2007

  24. Shea Homes Construction 1600/5650 Violations Las Virgenes Creek, Los Angeles County Spring 2004 thru Winter 2005

  25. Thanks for listening…. Angie Montalvo Environmental Scientist CDFG-OSPR Water Pollution Control Laboratory Aquatic Bioassessment Laboratory 2005 Nimbus Road Gold River, CA 95670 Office: 916.358.4398 Fax: 916.985.4301

  26. The End

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