SONOMA STATE UNIVERSITY
1998 WATER QUALITY ANNUAL REPORT
ROHNERT PARK---- As required by Section 64463.1(b) of the California Domestic Water Quality and Monitoring Regulations (California Code of Regulations, Title 22), copies of the 1998 annual report on water quality for the Sonoma State University water system will be available for your review during the month of April at the following campus locations:
* Student Union Desk
* Housing Office (Zinfandel)
* Facilities Services Reception
* Academic Senate Office
* Ruben Salazar Library Information Desk
* Human Services Reception
* and via the Internet at http://www.sonoma.edu/EHS/DW.html
The drinking water provided to the Sonoma State University Campus Community is tested regularly in conformance with strict standards established by the State of California Department of Health Services and the U.S. Environmental Protection Agency. The annual report provides a detailed list of these standards and their respective analytical results for calendar year 1998.
For further information, please contact Thomas Sargent, Environmental Health & Safety Specialist, (707) 664-4003.
Facilities Services at Sonoma State University is dedicated to providing a safe and reliable supply of high quality drinking water. As required by the Federal Safe Water Drinking Act, all public water supplies in California must meet stringent quality standards set by the State Department of Health Services and the U.S. Environmental Protection Agency (EPA).
In California, drinking water standards (also known as Maximum Contaminant Levels or MCL's) are set in to two categories. Primary standards relate to public health and secondary standards relate to aesthetic qualities such as taste, odor, and color. As part of this report, you will find a complete listing of both types of standards and the respective analytical results for the tests conducted on the drinking water supplied to the Campus Community.
For additional information regarding this report, please contact Thomas Sargent, Environmental Health & Safety Specialist, (707) 664-4003.
Explanation of Terms
average Average value calculated over reporting year. Where water monitoring requirements for specific parameters occur less than once per year, the most current maximum value will be indicated.
mg/L milligrams per liter (parts per million)
MCL Maximum Contaminant Level. The highest level of a contaminant allowed in drinking water.
ND None Detected. Constituent not detected above laboratory method detection limit. Detection limits are typically several times lower than established MCL's (e.g. the MCL for ethylbenzene is 0.68 mg/L and the detection limit is 0.005 mg/L).
NL Not Listed (unregulated organic chemicals do not have MCL's listed; any amount above the laboratory detection limit is reported to DHS).
NT Not Tested (requirement waived per Department of Health Services Office of Drinking Water).
NTU Nephelometric Turbidity Units
pCi/L pico Curies per liter
range The minimum and maximum values occurring during reporting year. Where water monitoring requirements occur less than once per year, the most current minimum and maximum values for each water source will be indicated.
Sonoma State University
1998 Annual Water Quality Report
Primary Drinking Water Standards - Health Related Standards
Constituent Units Maximum SSU SSU
Contaminant Analytical Analytical
Level Results Results
(range) (average)
Microbiological
Coliform Bacteria (Present/Absent) Number >1per month 0 - 3 0.16
Present/
Month
Trihalomethanes
THM (distribution system) mg/L 0.1 ND ND
Organic Chemicals
Volatile Organic Chemicals
Benzene mg/L 0.001 ND ND
Carbon Tetrachloride mg/L 0.0005 ND ND
1,2-Dichlorobenzene mg/L 0.006 ND ND
1,4-Dichlorobenzene mg/L 0.005 ND ND
1,1-Dichloroethane mg/L 0.005 ND ND
1,2-Dichloroethane mg/L 0.0005 ND ND
1,1-Dichloroethylene mg/L 0.006 ND ND
cis-1,2-Dichloroethylene mg/L 0.006 ND ND
trans-1,2-Dichloroethylene mg/L 0.01 ND ND
dichloromethane mg/L 0.005 ND ND
1,2-Dichloropropane mg/L 0.005 ND ND
1,3-Dichloropropene mg/L 0.0005 ND ND
Ethylbenzene mg/L 0.7 ND ND
Monochlorobenzene mg/L 0.07 ND ND
Styrene mg/L 0.1 ND ND
1,1,2,2-Tetrachloroethane mg/L 0.001 ND ND
Tetrachloroethylene mg/L 0.005 ND ND
Toluene mg/L 0.15 ND ND
1,2,4-Trichlorobenzene mg/L 0.07 ND ND
1,1,1-Trichloroethane mg/L 0.200 ND ND
1,1,2-Trichloroethane mg/L 0.005 ND ND
Trichloroethylene mg/L 0.005 ND ND
Trichlorofluoromethane mg/L 0.15 ND ND
1,1,2-Trichloro-1,2,2-Trifluoroethane mg/L 1.2 ND ND
Vinyl Chloride mg/L 0.0005 ND ND
Xylenes mg/L 1.75** ND ND
Non-Volatile Synthetic Organic Chemicals (SOC's)
Alachlor mg/L 0.002 NT NT
Atrazine mg/L 0.003 ND ND
Bentazon mg/L 0.018 NT NT
Benzo(a)pyrene mg/L 0.0002 NT NT
Carbofuran mg/L 0.018 NT NT
Chlordane mg/L 0.0001 NT NT
2,4- Dichlorophenoxyacetic acid mg/L 0.07 NT NT
Dalapon mg/L 0.2 NT NT
1,2-Dibromo-3-chloropropane mg/L 0.0002 NT NT
Di(2-ethylhexyl) adipate mg/L 0.004 NT NT
Di(2-ethylhexyl) phthalate mg/L 0.004 NT NT
Dinoseb mg/L 0.007 NT NT
Diquat mg/L 0.02 NT NT
Constituent Units Maximum SSU SSU
Contaminant Analytical Analytical
Level Results Results
(range) (average)
Endothall mg/L 0.1 NT NT
Endrin mg/L 0.002 NT NT
Ethylene Dibromide mg/L 0.00005 NT NT
Glyphosate mg/L 0.7 NT NT
Heptachlor mg/L 0.00001 NT NT
Heptachlor Epoxide mg/L 0.00001 NT NT
Hexachlorobenzene mg/L 0.001 NT NT
Hexachlorocyclopentadiene mg/L 0.05 NT NT
Lindane mg/L 0.0002 NT NT
Methoxychlor mg/L 0.04 NT NT
Molinate mg/L 0.02 NT NT
Oxamyl mg/L 0.2 NT NT
Pentachlorophenol mg/L 0.001 NT NT
Picloram mg/L 0.5 NT NT
Polychlorinated Biphenyls mg/L 0.0005 NT NT
Simazine mg/L 0.004 ND ND
Thiobencarb mg/L 0.07 NT NT
Toxaphene mg/L 0.003 NT NT
2,3,7,8-TCDD (Dioxin) mg/L 0.00000008 NT NT
2,4,5- Trichlorophenoxyacetic acid mg/L 0.05 NT NT
(Silvex)
Unregulated Organic Chemicals
List A
Bromobenzene mg/L NL ND ND
Bromodichloromethane mg/L NL ND ND
Bromoform mg/L NL ND ND
Bromomethane mg/L NL ND ND
Chlorodibromomethane mg/L NL ND ND
Chloroethane mg/L NL ND ND
Chloroform mg/L NL ND ND
Chloromethane mg/L NL ND ND
2-Chlorotoluene mg/L NL ND ND
4-Chlorotoluene mg/L NL ND ND
Dibromomethane mg/L NL ND ND
1,3-Dichlorobenzene mg/L NL ND ND
Dichlorodifluoromethane mg/L NL ND ND
1,3-Dichloropropane mg/L NL ND ND
2,2-Dichloropropane mg/L NL ND ND
1,1-Dichloropropene mg/L NL ND ND
1,1,2,2-Tetrachloroethane mg/L NL ND ND
1,2,3-Trichloropropane mg/L NL ND ND
List B
Bromacil mg/L NL ND ND
Bromochloromethane mg/L NL ND ND
n-Butylbenzene mg/L NL ND ND
sec-Butylbenzene mg/L NL ND ND
tert-Butylbenzene mg/L NL ND ND
Chlorothalonil mg/L NL ND ND
Dimethoate mg/L NL ND ND
Diuron mg/L NL ND ND
Hexachlorobutadiene mg/L NL ND ND
Isopropylbenzene mg/L NL ND ND
p-Isopropyltoluene mg/L NL ND ND
Methyl-tert-Butyl Ether mg/L NL ND ND
Naphthalene mg/L NL ND ND
Constituent Units Maximum SSU SSU
Contaminant Analytical Analytical
Level Results Results
(range) (average)
1-Phenylpropane mg/L NL ND ND
Prometryn mg/L NL ND ND
1,2,3-Trichlorobenzene mg/L NL ND ND
1,2,4-Trimethylbenzene mg/L NL ND ND
1,3,5-Trimethylbenzene mg/L NL ND ND
Inorganic Chemicals
Aluminum mg/L 1 ND ND
Antimony mg/L 0.006 ND ND
Arsenic mg/L 0.05 0.006-0.00 0.007
7
Asbestos MFL* 7.0 NT NT
Barium mg/L 1.0 ND ND
Beryllium mg/L 0.004 NT NT
Cadmium mg/L 0.005 ND ND
Chromium mg/L 0.05 ND ND
Cyanide mg/L 0.2 NT NT
Fluoride mg/L 0.6-1.7*** 0.12 - 0.12
0.13
Lead mg/L 0.05 0.005-0.01 0.008
1
Mercury mg/L 0.002 ND ND
Nickel mg/L 0.1 NT NT
Nitrate (as NO3) mg/L 45.0 <4.5 <4.5
Nitrate + Nitrite (sum as nitrogen) mg/L 10.0 NT NT
Nitrite (as nitrogen) mg/L 1.0 <0.01 <0.01
Selenium mg/L 0.05 ND ND
Thallium mg/L 0.002 ND ND
Lead & Copper (point of use) range 90th
percentile
Lead mg/L 0.015 <0.005-0.0 <0.005
099
Copper mg/L 1.3 0.055 - 0.460
0.740
Radioactivity range average
Gross Alpha Activity pCi/L 15 0 - 1.90 0.83
Uranium pCi/L 20 0.35 0.35
Secondary Drinking Water Standards
Constituent Units Maximum SSU SSU
Contaminant Analytical Analytical
Level Results Results
(range) (average)
Secondary Maximum Contaminant Levels - Consumer Acceptance Limits
Aluminum mg/L 1.0 ND ND
Color units 15 <3.0 <3.0
Copper mg/L 1.0 ND ND
Corrosivity - non-corrosiv non-corros non-corros
e ive ive
Foaming Agents (MBAS) mg/L 0.5 <0.05 <0.05
Iron mg/L 0.3 ND ND
Manganese mg/L 0.05 ND ND
Odor -Threshold units 3 1 - 1.4 1.2
Silver mg/L 0.1 ND ND
Thiobencarb mg/L 0.001 ND ND
Turbidity units 5 <0.1 <0.1
Zinc mg/L 5 ND ND
Secondary Maximum Contaminant Levels - Ranges
Units Upper Short SSU SSU
Recom-me Term Analytical Analytical
nded Results Results
(range) (average)
Total Dissolved Solids mg/L 500 1000 1500 180 - 190 185
Specific Conductance micromho 900 1600 2200 380 - 390 385
s
Chloride mg/L 250 500 600 8.9 - 11 10
Sulfate mg/L 250 500 600 3.4 - 6.0 4.7
pH units 6.5 8.5 - 7.4 - 7.5 7.4
Additional Constituents - Constituents analyzed which are natural to water but for which no standards apply.
Constituent Units Maximum SSU SSU
Contaminant Analytical Analytical
Level Results Results
(range) (average)
Hardness (CaCO3) mg/L No Standard 130 - 140 135
Sodium mg/L No Standard 18 - 20 19
Calcium mg/L No Standard 26 -29 27
Magnesium mg/L No Standard 15 - 17 16
Note:
* MFL = million fibers per liter; MCL for fibers exceeding 10 um in length.
** MCL is for either a single isomer or the sum of the isomers.
*** Fluoride standard is temperature dependent.