Drinking Water Field Operations Branch Districts - Mendocino - 03

• Public Drinking Water Watch
  • How to Download Your Monitoring Schedule
• California Drinking Water Regulations
• Apply for and Learn about Financial Assistance with our Drinking Water State Revolving Fund
• Get Free Operator Training! Upcoming RCAC Drinking Water Workshops
• Transition of the Drinking Water Program to the State Water Resources Control Board - July 1, 2014
• State Adoption of a Hexavalent Chromium MCL (Chrome-6) - June 20, 2014
• Introduction to Regulatory Requirements for Public Water Systems (Handout 02)
• Waterworks Standards Memo
• 2015 Annual Report Letter from the Division
• Preparation Tips for a Smooth Water System Inspection
• Drinking Water Systems Geographic Reporting Tool

• Revised Total Coliform Rule Information
• Collecting Bacteriological Water Samples (Handout 32)
• Guidelines for Resolving Bacteriological Problems (Handout 33)
• Ground Water Rule Coliform Monitoring Worksheet

• Tips for Completing Your CCR (Handout 15)
• Consumer Confidence Reports - Instructions

• Cross Connection Control for Noncommunity Water Systems (Handout 67)
• Cross Connection Control for Community Water Systems (Handout 68)
• Example Cross Connection Control Ordinance for a Small Water System (Handout 69)

• Chlorine Inactivation CT
  • Clearwell (Giardia, gpm)
  • Clearwell (Giardia, MGD)
  • Clearwell+Pipeline (Giardia, gpm)
  • Clearwell+Pipeline (Giardia, MGD)
  • Clearwell+Pipeline (Giardia+MC-LR, gpm)
  • Clearwell+Pipeline (Giardia+Virus, gpm)
  • Clearwell+Pipeline (Giardia+Virus, MGD)
  • Clearwell+Pipeline (Virus, gpm)
  • Clearwell+Pipeline (Virus, MGD)
  • CT for microcystins and cylindrospermopsin
  • Pipeline (Giardia+Virus, gpm)
  • Pipeline (Virus, gpm)
• Chloramine Inactivation CT
  • Clearwell+Pipeline (Giardia+Virus, gpm)
  • Clearwell+Pipeline (Giardia+Virus, MGD)
• Chlorine Dioxide Inactivation CT
  • Clearwell+Pipeline (Crypto+Giardia+Virus, gpm)
  • Clearwell+Pipeline (Crypto+Giardia+Virus, MGD)
  • Clearwell+Pipeline (Virus, gpm)
  • Clearwell+Pipeline (Virus, MGD)
• Disinfection Comparisons CT
  • Disinfection Comparisons (gpm)
• CT Presentations
  • 4-Log Virus Treatment, GWR

Overview

• Watch a Video on Tools for Addressing the Risks of Cyanotoxins in Drinking Water
• Watch a Video on Conventional Treatment Options for Harmful Algal Blooms
• A Cyanotoxin Primer for Drinking Water Professionals (AWWA)
• Preparing for the Cyanobacteria Season – Planning and Responding (USEPA)

Treatment Resources for PWS:

• Cyanobacteria and Known Potential Toxins
• US EPA Water Treatment Optimization for Cyanotoxins
• District Cyanobacteria and Cyanotoxin Notes
• A Water Utility Guide to Cyanotoxins (AWWA/WRF)
• Example Cyanotoxin Monitoring Plans: Small Plan | Large Plan
• CT for microcystin and cylindrospermopsin
• Example CT reporting for microcystin inactivation
• Laboratories performing cyanotoxin analyses in DW
• Point-of-Use devices certified by NSF to reduce microcystins: Devices | Background

Public Communication Support for PWS:

• Guide to Cyanotoxins Communication (WRF/AWWA)
• Example Public Notice #1 in English
• Example Public Notice #1 in Spanish
• Example Public Notice #2 in English
• What are the Drinking Water Impacts of Harmful Algal Blooms?
• US EPA Communication Toolbox

Regional Information:

Clear Lake, CA:

• 2017 Review of Clear Lake Plans and Reports
• 2017 Clear Lake Literature Review Matrix
• 2018 Microcystin Barrier Index Score for Drinking Water Treatment Plants

• Chlorine or Chloramines Reporting Form
• Stage 2 Disinfectants/Disinfection By products Monitoring Plan (Form 103-2)
• Stage 2 DBP Reporting Form (Form 103D)
• Stage 2 Bromate Reporting Form (Form 103G; See User's Document below for more information)
• Stage 2 Bromate Reporting Form User's Document (Handout 103G)
• Stage 2 DBP Seminar Slides
• Stage 2 TOC Precursor Reduction Report

• Guidance for Continuous Chlorination Disinfection System
• Continuous Chlorination Design Installation Guidance
• Example Chlorine Dosage Calculation

• Drinking Water Source Assessment - New Well (Form 8-15)
• Drinking Water Source Assessment - New Spring (Form 8-16)
• Drinking Water Source Assessment - Letter (Form 8-17)

• ENP (Form 20)

• Operations Plan Small Groundwater System
• Operations Plan Small Groundwater System Chlorination
• Operations Plan Surface Groundwater

Research

• Jar Testing Made Easy
• Jar Testing Procedures

Tools

• Chemical Dosages/Stock Solution Prep

Presentations

• 2022 OpShow Jar Testing Simple and Effective
• 2021 CA State Board Jar Testing Made Easy
• 2021 CA-NV AWWA Jar Testing Made Easy
• 2021 CA-NV AWWA Coagulants Stock Solutions
• 2020 CA-NV AWWA Jar Testing Made Easy
• 2019 CA-NV AWWA Jar Testing Made Easy

Results

1. CA0310002 Ione AWA April10 2023 Jar52
2. CA0310003 Tanner AWA April10 2023 Jar52
3. CA0410006 South Feather Water June4 2020 Jar28
4. CA0910013 Georgetown Divide PUD July12 2019 Jar24
5. CA1000484 Millerton New Town May 20 2021 Jar48
6. CA1010044 Huron, City of July 6 2021 Jar32
7. CA1010077 Fresno Northeast Plant Jan7 2020 Jar28
8. CA1010077 Fresno South Plant July31 2019 Jar20
9. CA1200566 Orleans MWC Nov11 2020 Jar32
10. CA1210008 Garberville SD Feb 2019
11. CA1210024 Westhaven CSD Jan28 2021 Jar32
12. CA1210024 Westhaven CSD Oct20 2020 Jar 16
13. CA1310004 El Centro Jan19 2021 Jar76
14. CA1310004 El Centro Jan12 2021 Jar20
15. CA1510055 CSD North Garden Water Co Oct22 2020 Jar44
16. CA1610009 Kettleman City Nov5 2019 Jar20
17. CA1700542 Branding Water Aug20 2020 Jar16
18. CA1700546 Clear Water MW Oct9 2019 Jar40
19. CA1700568 Harbor View MWC Feb6 2019 Jar16
20. CA1700606 Baycliff Aug18 2021 Jar12
21. CA1700609 Lazy S Mobile Ranch May5 2023 Jar20
22. CA1700609 Lazy S Mobile Ranch Jan20 2023 Jar16
23. CA1710001 Clearlake Oaks CWD Oct21 2022 Jar44
24. CA1710001 Clearlake Oaks CWD Sept20 2022 Jar28
25. CA1710001 Clearlake Oaks CWD Sept7 2022 Jar36
26. CA1710001 Clearlake Oaks CWD July20 2021 Jar16
27. CA1710001 Clearlake Oaks CWD Feb15 2019 Jar16
28. CA1710001 Clearlake Oaks CWD May8 2019 Jar40
29. CA1710001 Clearlake Oaks CWD June17 2020 Jar36
30. CA1710002 Golden State Dec13 2019 Jar36
31. CA1710003 Highlands MWC Jan10 2019 Jar16
32. CA1710003 Highlands MWC Jan18 2019 Jar25
33. CA1710005 Lucerne Water Co July30 2021 Jar32
34. CA1710005 Lucerne Water Co July27 2021 Jar24
35. CA1710005 Lucerne Water Co Sept4 2020 Jar32
36. CA1710005 Lucerne Water Co March5 2020 Jar28
37. CA1710005 Lucerne Water Co Oct1 2018 Jar4
38. CA1710006 Konocti CWD Sept13 2021 Jar8
39. CA1710006 Konocti CWD July20 2021 Jar16
40. CA1710006 Konocti CWD April30 2021 Jar40
41. CA1710006 Konocti CWD June3 2021 Jar16
42. CA1710006 Konocti CWD Oct6 2018 Jar8
43. CA1710006 Konocti CWD July15 2020 Jar28
44. CA1710006 Konocti CWD BW July15 2020 Jar27
45. CA1710006 Konocti CWD Sept22 2020 Jar27
46. CA1710006 Konocti CWD Oct1_2 2020 Jar27
47. CA1710006 Konocti CWD Oct5 2020 Jar12
48. CA1710008 Nice MWC Dec18 2018 Jar16
49. CA1710011 Buckingham Park Jan23 2019 Jar12
50. CA1710012 Branding Water May4 2021 Jar31
51. CA1710014 Mt Konocti Dec2 2018 Jar20
52. Ca1710016 Konocti Resort April23 2021 Jar24
53. Ca1710016 Konocti Resort Sept16 2020 Jar20
54. CA1710016 Konocti Resort April10 2020 Jar24
55. CA1710017 Kids Camp Feb19 2020 Jar20
56. CA1710021 North Lakeport Nov23 2024 Jar32
57. CA1710021 North Lakeport Nov10 2022 Jar28
58. CA2010003 Bass Lake July9 2021 Jar50
59. CA2300541 Heritage House May20 2019 Jar16
60. CA2300541 Heritage House Oct3 2018 Jar4
61. CA2300541 Heritage House Sept17 2019 Jar15
62. CA2300590 Surfwood MWC Aug29 2024 Jar8
63. CA2300590 Surfwood MWC July24 2023 Jar16
64. CA2300590 Surfwood MWC May12 2023 Jar12
65. CA2300590 Surfwood MWC March2 2023 Jar23
66. CA2300590 Surfwood MWC April29 2020 Jar12
67. CA2300590 Surfwood MWC Jan31 2019 Jar35
68. CA2300590 Surfwood MWC Mar20 2019 Jar32
69. CA2300590 Surfwood MWC May14 2019 Jar12
70. CA2300590 Surfwood MWC May3 2019 Jar28
71. CA2300590 Surfwood MWC Oct18 2019 Jar28
72. CA2300590 Surfwood MWC Oct20 2018 Jar27
73. CA2300590 Surfwood MWC Sept11 2019 Jar40
74. CA2300590 Surfwood MWC Sept19 2019 Jar32
75. CA2300590 Surfwood MWC July15 2020 Jar8
76. CA2300590 Surfwood MWC Aug13 2020 Jar8
77. CA2300730 Westport CWS May6 2025 Jar6
78. CA2300730 Westport CWS Aug21 2023 Jar35
79. CA2310004 Willits, City of June25 2020 Jar56
80. CA2310007 North Gualala July9 2020 Jar32
81. CA2310008 Redwood Valley CWD April29 2020 Jar37
82. CA2310301 CSP MacKerricher State Park Feb28 2023 Jar9
83. CA2310301 CSP MacKerricher State Park Jan27 2023 Jar48
84. CA2800840 Pope Valley School Nov4 2020 Jar35
85. CA2800840 Pope Valley School Oct10 2018 Jar4
86. CA2810001 Howell Mountain MWC Aug29 2024 Jar8
87. CA2810001 Howell Mountain MWC Sept30 2021 Jar32
88. CA2810001 Howell Mountain MWC Oct3 2019 Jar14
89. CA2810001 Howell Mountain MWC Sept28 2019 Jar32
90. CA2810002 Calistoga Feb3 2020 Jar32
91. CA2810004 St Helena October23 2024 Jar6
92. CA2810004 St Helena April4 2019 Jar32
93. CA2810004 St Helena Sept18 2024 Jar18
94. CA2810004 St Helena Sept14 2024 Jar18
95. CA2810004 St Helena Sept5 2024 Jar30
96. CA2810004 St Helena Aug28 2024 Jar16
97. CA2810008 Veterans Home April23 2019 Jar36
98. CA2810008 Veterans Home April30 2019 Jar32
99. CA2810008 Veterans Home Mar19 2019 Jar37
100. CA2810008 Veterans Home Mar6 2019 Jar23
101. CA281005 American Canyon Aug11 2024 Jar20
102. CA281005 American Canyon June20 2022 Jar32
103. CA281005 American Canyon Sept24 2021 Jar44
104. CA281005 American Canyon Aug28 2019 Jar27
105. CA281005 American Canyon Feb12 2019 Jar20
106. CA281005 American Canyon Feb25 2019 Jar6
107. CA281005 American Canyon Jan8 2020 Jar12
108. CA3910022 Little Potato Feb28 2019 Jar24
109. CA4010012 Heritage Ranch CSD Sept27 2022 Jar68
110. CA4010012 Heritage Ranch CSD Feb22 2021 Jar56
111. CA4010027 Nacimiento WC Mar26 2021 Jar44
112. CA4010022 Lopez Project Nov4 2019 Jar32
113. CA4100512 Loma Mar Mutual July8 2020 Jar12
114. CA4500317 Shasta CSA French Gulch Oct2018 Jar8
115. CA4810001 City of Benicia Feb12 2021 Jar52
116. CA4810003 City of Fairfield Feb11 2019 Jar24
117. CA4810005 Cement Hill July30 2020 Jar32
118. CA4810005 Cement Hill July28 2020 Jar18
119. CA4810015 Travis AFB Vallejo Nov18 2020 Jar36
120. CA4900549 Freestone Aug28 2024 Jar12
121. CA4900549 Freestone Aug6 2019 Jar24
122. CA5010038 MID Feb28 2019 Jar40

• Lead and Copper Proof of Consumer Notification - Community Water Systems (Form 53a)
• Lead and Copper Proof of Consumer Notification - Nontransient-Noncommunity Water Systems (Form 53b)
• Example Letter for Community WS Consumer Notification (Handout 55X)
• Lead and Copper Initial WQP Monitoring (Form 56)

• Operational Evaluation Reporting Form
• Source Water Evaluation Checklist
• Treatment Process Evaluation Checklist
• Distribution System Evaluation Checklist

• Well Surface Seal Requirements (Handout 60)
• Well Disinfection Procedures (Handout 61)
• Tank Disinfection Procedures (Handout 62)
• Steel Tank Coating Requirements (Handout 63)
• Chlorination Operational Requirements (Handout 64)
• Customer Complaint Form (Form 65)
• Requirements for Drinking Water Additives (Handout 70)

• Operator Certification

• Permit Application
• Amended Permit Application

• 2022 Filter Surveillance

• Public Notification Templates

• TMF Assessment Forms

• 8-Hour Pumping Test for Wells in Alluvial Soils (Handout 9A)
• Well Capacity Determination for Wells in Bedrock (Handout 9B)
• Well Concrete Base or Pad Construction Requirements (Handout 60)
• 8-Hour, 72-Hour, and 10-Day Pump Test Form (See worksheet tabs for different durations)

• Tracer Studies - Database
  • Tracer Studies Database (.xls)
• Tracer Studies - Individual Results
  • Airport-Larkfield_Wikiup Sanitation
  • American Canyon, City of, SN 2810005
  • Britz/Five Points, Britz/Colusa & Farming D
  • Buckingham Park Water District Test 1, SN 1710011
  • Buckingham Park Water District Test 2, SN 1710011
  • Cement Hill WTP, CA4810005
  • City of Fairfield, SN 4810003
  • City of Fresno, SN 1010007
  • Clearlake Oaks CWD, Test1, SN 1710001
  • Clearlake Oaks CWD, Test2, SN 1710001
  • Clearlake Oaks CWD, SN 1710001
  • Clear Water MWC, SN1700546
  • Cloverdale, City of, SN 4910002
  • Fairfield, City of, SN4810003
  • Garberville Sanitary District Test 1 & 2, SN 1210008
  • Garberville Sanitary District, SN 1210008
  • Golden State Water Co. - Clearlake, SN 1710002
  • Graton CSD, SN 4990011
  • Gualala CSD Test 1, SN 4990023
  • Gualala CSD Test 2, SN 4990023
  • Gualala CSD Test 3, SN 4990023
  • Gualala CSD Test 4, SN 4990023
  • Harris Farms/Horse Barn, SN 100213
  • Howell Mountain MWC, SN 2810001
  • Lake County CSA 2 - Spring Valley, SN 1710018
  • Millview County Water District, SN 2310006
  • Modesto Irrigation District, SN 5010038
  • Napa, City of, SN 2810003
  • Napa2, City of, SN 2810003
  • North Gualala Water Company, SN 2310007
  • SID - Gibson Canyon, SN 4810010
  • Vallejo, City of, CA 4810007
• Tracer Studies Presentations
  • 2002 CA-NV-AWWA (Tracer Problems)
  • 2005 CA-NV-AWWA (Tracer Planning)
  • 2007 CA-NV-AWWA (Tracer Modified Method)
  • 2010 CA-NV-AWWA (Tracer Cumulative V10 Method)
  • 2014 State Board (Tracer Studies)
  • 2018 State Board (Tracer Studies, Modal Contact Time)
  • 2019 CA-NV-AWWA (Tracer Studies for Drinking Water)
  • 2019 CA-NV-AWWA (Tracer Studies for Recycled Water)

For Additional Information Please Contact:

Division of Drinking Water Field Operations
Mendocino District
50 D Street, Suite 200,
Santa Rosa, CA 95404
(707) 576-2145

Potential Water Quality Shifts to Surface Water Utilities on Wildfire impacted Watersheds

• Potential Water Quality Shifts to Surface Water Utilities on Wildfire impacted Watersheds Recording, Part 1
• Potential Water Quality Shifts to Surface Water Utilities on Wildfire impacted Watersheds Recording, Part 2
• California Wildfire Drinking Water Impacts by Bruce Macler
• Tubbs and Nuns Post-Fire Surface Water Quality Monitoring by Katharine Carter
• Post Wildfire Watershed Assessment for Carr and Mendocino Complex Wildfires by Richard Muhl
• Technical Resources for BMPs – Natural Resources Conservation Service can help by Korinn Woodward
• Case 1: Post Fire Impacts on Water Quality and Treatment by Jeff Densmore
• Case 2: Post-Fire Putah Creek WQ Monitoring by Alex Rabidoux
• Case 3: Post-Fire Treatment Impacts on Lake Berryessa by Christopher Silke
• Impacts of Wildfires on Water Quality and Drinking Water Utilities by Chi Ho Sham
• Source Water Treatment Due to the Forecast of Post-Fire Watershed Runoffs by Guy Schott
• Post-fire Impacts to Drinking Water Treatment by Amanda Hohner