Consumer Confidence Report 
Certification Form 
(to be submitted with a copy of the CCR) 
Water System Name: BLOCK 77 COOPERATIVE WATER COMPANY, INC 
Water System Number: 3301877 
------------------------------------------------------------ 
The water system named above hereby certifies that its Consumer Confidence Report was distributed on 
June 24, 2019 to customers (and appropriate notices of availability have been given). Further, the system 
certifies that the information contained in the report is correct and consistent with the compliance 
monitoring data previously submitted to the State Water Resources Control Board, Division of Drinking 
Water. 
Certified by: Name: Mary C.J. Roberts 
Signamre: ~~ 
Title: . secreta;JTraSUf; 
Phone Number: ( 951) 279-7649 Date: June 24,2019 
To summarize report delivery used and good-faith efforts taken, please complete the below by checking 
all items that apply and fill-in where appropriate: 
~ CCR was distributed by mail or other direct delivery methods. Specify other direct delivery 
methods used: Email --------------------------------------------------------- 
D "Good faith" efforts were used to reach non-bill paying consumers. Those efforts included the 
following methods: 
0 Posting the CCR on the Internet at www. _________________ _ 
0 Mailing the CCR to postal patrons within the service area (attach zip codes used) 
0 Advertising the availability of the CCR in news media (attach copy of press release) 
0 Publication of the CCR in a local newspaper of general circulation (attach a copy of the 
published notice, including name of newspaper and date published) 
0 Posted the CCR in public places (attach a list of locations) 
0 Delivery of multiple copies of CCR to single-billed addresses serving several persons, such 
as apartments, businesses, and schools 
0 Delivery to community organizations (attach a list of organizations) 
0 Other (attach a list of other methods used) 
D For systems serving at least 100,000 persons: Posted CCR on a publicly-accessible internet site at 
the following address: www .. _________________________ _ 
0 For investor-owned utilities: Delivered the CCR to the California Public Utilities Commission 
This form is provided as a convenience for use to meet the certification requirement of the California Code of Regulations, section 64483(c). 
Reference Manual, §ppendix G 
Revised January -2019 G-1