Data Links

CCWI Searchable Online Water Quality Data

CCWI Permissions to Use Data

Analysis and Methods Summary
instrumentation, short description of sampling and analysis methods and example field collection, instrument documentation and calibration record sheets.

Standard Operating Procedures (SOP) and field data sheets

Humboldt Bay First Flush 2004 data

Humboldt Bay First Flush coliform data

How to read the data: Data is in an Excel workbook. The worksheet on the far left is the summary data page "Summary". NExt to it is the "Param-Block" with field collected data. Nutrient data is under "Result-Lab chromatograph or colorimetric." Additional sheets describe site locations, equipment, equipment calibration, personnel, and other relevant data. Generally, the Monitoring Plan is a separate document. Call our office for help using the data at 824-4370.

Data Reports (as pdf files):

Dutch Bill Creek 2004-2006 Summary and Bacteria Study
Green Valley Creek 2005-2006 Summary Report

Laguna de Santa Rosa 2004-2006 Summary Report

Santa Rosa Creek 2004-2006 Summary Report
Russian River and Pocket Canyon Creek 2004-2006 Summary Report
Salmon Creek 2004-2006 Summary Report

Salmon Creek 2006-2007 Winter Storm Report

All Creeks Summary Report 2004

Austin Creek 2004 Data Report
Austin Creek 2002 Data Report

Dutch Bill Creek Factsheet (2005)

Dutch Bill Creek 2004 Data Report

Dutch Bill Creek 2002 Data Report

Dutch Bill Creek Factsheet (2002)

Jenner and Austin Creek Factsheet

Jenner Creek 2004 Data Report

Laguna de Rosa 2004 Data Report

Lower Russian River 2004 Data Report

Middle Russian River 2004 Data Report

Monte Rio Factsheet (2005)

Monte Rio Beach 2004 Coliform Study

Pocket Creek 2004 Data Report

Pocket Creek 2002 Data Report

Santa Rosa Creek 2004 Data Report

303d List Submittal:

2008 Submission:

Data summary and selected graphs

2006 submission:

CCWI's Comments on Revision of the 303d List (posted 11/21/05)
Data to accompany 303d List Comments

In June 2004, CCWI submitted data that was collected by citizen monitors to the State of California for use in its updated 303d list. The data was incorporated into the State Water Board's official recommendations. In late 2005, CCWI staff followed up by appearing at a public hearing in Sacramento to provide some clarifications in how the data was used.

In June 2004, CCWI submitted our citizen monitoring data to the State 303d list. The 303d list describes "impaired" waterbodies in the State, and plays an important role in prioritizing the efforts of the Regional Water Boards to protect water quality. CCWI staff worked with State Water Board staff to put our data in the correct format, and to provide background information about the type of monitoring (it was monthly baseline monitoring as opposed to stormwater or first flush monitoring). CCWI's data was cited in over 10 places in the State Water Board's 303d list Recommendations. The good news was that they used the data! CCWI data showed impairments on Big Sulphur Creek and Santa Rosa Creek for conductivity, and high turbidity on the Laguna de Santa Rosa and Russian River, and a number of other findings. The not so good news was that in a few places CCWI believed the State drew erroneous conclusions. For example, in one creek CCWI found no readings above 25 NTUs for turbidity in 2 years. According to the State guidelines, this would be enough information to de-list the creek for turbidity. However, the standard for impairment is 20% above baseline. The CCWI data was the baseline. CCWI staff believed that a second data set, consisting of stormwater monitoring specifically during periods of expected high turbidity would be needed to show there is no impairment. CCWI data also showed high nutrient levels in the Laguna de Santa Rosa. The City of Santa Rosa, which operates the regional wastewater treatment plant in the Laguna, had lobbied to have this listing removed. Several watershed groups had protested this delisting, and CCWI contributed actual monitoring data showing that delisting the Laguna was unsupported by the data. CCWI staff went to Sacramento in November 2005 and submitted comments at the public hearing to clarify the misinterpretations of the data and to get them fixed in the final draft. The State Water Board Chair Tam Dudoc seemed very attentive, and CCWI believes the changes will be made.

Other reports:

Fortuna water quality data by Jennifer Cole, Fisheries Department, HSU-
"Evaluation of water quality monitoring on urban streams in Fortuna, California from 1997 to 2003."
This paper is an analysis of 6 years of water quality data collected by Fortuna Union High School's Fortuna Creeks Project, including descriptions of the program's water quality monitoring protocols, and proposed directions for future water quality monitoring.

Report to Bay Area Air Quality Management District on the overlap of air quality and climate protection. (pdf file)

Humboldt Bay First Flush Summary Report

Humboldt Bay First Flush Full Report (PDF file, 1.4MB) and Map of sites

CCWI Permissions to Use Data

According to CCWI's Data Permissions Policy, Watershed Groups, Regulatory Agencies, and others interested in the protection of clean water are permitted to use data collected by CCWI under the following conditions:

1) All public use of data must be accompanied by the words, "This data was collected by Community Clean Water Institute, a non-profic volunteer water quality organization. For more information, check www.ccwi.org."
Direct any questions to info@ccwi.org.


  Letter to our friends