Page 8 - scvwa052118

Maximum Residual Disinfectant Level Goal (MRDLG): The level of a drinking water DISINFECTION BY-PRODUCTS
disinfectant below which there is no known or expected risk to health. MRDLGs do not CLWA uses ozone and chloramines to disinfect its water while the water retailers use
reflect the benefits of the use of disinfectants to control microbial contaminants. various forms of chlorine and chloramines to disinfect their groundwater sources.
Detection Limit for Purposes of Reporting (DLR): The smallest concentration of Disinfection By-Products (DBPs), which include Total Trihalomethanes (TTHMs)
a contaminant that can be measured and reported. DLRs are set by the DDW (same as and Haloacetic Acids (HAA5), are generated by the interaction between naturally
MRL, Minimum Reporting Level, set by USEPA). occurring organic matter and disinfectants such as chlorine. TTHMs and HAA5 are
measured at multiple locations throughout the distribution system. Each location
Regulatory Action Level (AL): The concentration of a contaminant which, if is averaged once per quarter and reported as a running average by location. The
exceeded, triggers treatment or other requirements that a water system must follow. DBP bromate is formed when the primary disinfectant ozone is applied converting
bromide to bromate. Bromate is measured weekly in the surface water treatment
Notification Level (NL): State guidelines developed by DDW that address the
concentration of a contaminant which, if exceeded, triggers public notification. plant and compliance is based on a running annual average.

Treatment Technique (TT): A required process intended to reduce the level of a UNREGULATED CONTAMINANT MONITORING RULE
contaminant in drinking water. The USEPA requires utilities to sample for emerging contaminates as part of the
Primary Drinking Water Contaminants: Contaminants associated with the Unregulated Contaminant Monitoring Rule (UCMR). Every five (5) years the USEPA
protection of public health and that have enforceable standards. prepares a list of unregulated contaminants for drinking water suppliers to analyze.
UCMR results are then used to assist in the development of future drinking water
Secondary Drinking Water Contaminants: Contaminants associated with regulations. The third round of UCMR sampling (UCMR 3) was completed by all water
aesthetic considerations such as taste, color and odor, and that have non-enforceable retailers between 2013-2015. Currently, the USEPA is preparing for UCMR 4. For more
guidelines. information please contact your local water retailer or visit the USEPA website www.
epa.gov/dwucmr/learn-about-unregulated-contaminant-monitoring-rule.

Este informe contiene información muy importante sobre su agua potable.
Si usted quisiera informacion de este reporte traducido en español, comuniquese con su distribuidor local de agua que se muestra arriba.

Castaic Lake Water Agency (now Santa Clarita Valley Water Agency
(SCVWA))
Jeff Koelewyn | 661-297-1600 x223
E-mail: jkoelewyn@scvwa.org | Website: www.yourscvwater.com
The Board of Directors meets at 6:30 pm generally on the first and third Tuesdays of each
month at the Rio Vista Administration Building at 27234 Bouquet Canyon Road, Santa Clarita,
91350. Dates may vary; please visit website at http://yourscvwater.com/index.php/gover-
nance/#board-meetings for the Board calendar.
CLWA Santa Clarita Water Division (now SCVWA Santa Clarita Water
Division)
Ryan Bye | 661-255-8223 x117
E-mail: rbye@scvwa.org | Website: www.yourscvwater.com
Newhall County Water District (now SCVWA Newhall Water Division)
Ernesto Velazquez | 661-259-3610 x216
E-mail: evelazquez@scvwa.org | Website: www.yourscvwater.com
Valencia Water Company (now SCVWA Valencia Water Division)
Jenny Anderson | 661-295-6579
E-mail: janderson@scvwa.org | Website: www.yourscvwater.com
The Finance and Operations Committee (for all three SCVWA Divisions) meets at 5:30 pm on the
second Thursday of each month at the SCWD office at 26521 Summit Circle, Santa Clarita, 91350
Los Angeles County Waterworks District No. 36
Bing Hua, P.E. | 626-300-3337
County of Los Angeles/ Waterworks Division
E-mail: bhua@dpw.lacounty.gov | Website: www.lacwaterworks.org
Waterworks District No. 36 is governed by the Los Angeles County Board of Supervisors that
meets every Tuesday at 9:30 am at the Kenneth Hahn Hall of Administration, 500 West Temple
Street Room 381B, Los Angeles, 90012
On Tuesdays following a Monday holiday, the meetings begin at 1:00 pm.