Agenda packet — Water Subcommittee, June 25, 2026

Thursday, June 25, 2026
City of Rialto
Council Chambers
150 S. Palm Ave.

Rialto, CA 92376
Rialto City Hall, Council Chambers, 150 S. Palm Ave. Rialto CA 92376 Water Subcommittee
Mayor Joe Baca
Mayor Pro Tem Ed Scott
Regular Meeting - Final
REGULAR MEETING 10:00AM
Water Subcommittee Meeting
The City Council creates Subcommittees as needed to accomplish the work of the Council .

Subcommittees are categorized as either, Standing or Ad Hoc. Subcommittees do not replace the work or decision -making process of the City Council as a whole and are used to provide feedback to staff .

Subcommittees enable City staff to obtain early feedback from representative members of the City Council on issues affecting public policy prior to their presentation, as necessary, to the full City Council.

Any discussion or feedback expressed or received at a Subcommittee meeting should not be construed or understood to be a decision by or for the City Council. Further, any feedback the Subcommittee may make to the City Council is based on information possessed by the Subcommittee at the time the feedback is made and may be revised or amended upon receipt by the Subcommittee of additional or newer information.
1 June 25, 2026Water Subcommittee Regular Meeting - Final HOW TO REVIEW THE AGENDA. ALL AGENDAS ARE POSTED IN THE CITY HALL ADMINISTRATION BUILDING (150 SOUTH PALM AVENUE, RIALTO) AT LEAST 72 HOURS IN ADVANCE OF THE MEETING. ALL WRITINGS THAT RELATE

TO AN OPEN SESSION AGENDA ITEM AT A REGULAR SUBCOMMITTEE MEETING DISTRIBUTED TO ALL OF THE SUBCOMMITTEE WILL BE MADE AVAILABLE AT THE SAME TIME BUT AT LEAST 72 HOURS BEFORE A REGULAR MEETING, FOR PUBLIC INSPECTION ON THE CITY ’S WEBSITE AT www .rialtoca.gov AND IN THE OFFICE OF THE CITY CLERK LOCATED AT 290 WEST RIALTO AVENUE, RIALTO, CALIFORNIA (909-820-2519) FROM 7:00 A.M. TO 6:00 P.M., MONDAY THROUGH THURSDAY. ANY PERSON HAVING A QUESTION CONCERNING ANY AGENDA ITEM MAY CALL ADMINISTRATION /UTILITIES DIVISION AT (909-820-2689) TO MAKE INQUIRY CONCERNING THE NATURE OF THE ITEM DESCRIBED ON THE AGENDA.

ITEMS ADDED TO THE AGENDA. CONSISTENT WITH THE RALPH M. BROWN ACT, ADDITIONAL ITEMS MAY BE

ADDED TO THE AGENDA AND ACTED UPON BY THE SUBCOMMITTEE ONLY IF IT IS CONSIDERED TO BE A “SUBSEQUENT NEED” OR “EMERGENCY” ITEM AND IS ADDED BY A MAJORITY VOTE. MATTERS RAISED UNDER ORAL COMMUNICATIONS MAY NOT BE ACTED UPON AT THAT MEETING OTHER THAN AS PROVIDED ABOVE.

NEED ADA ASSISTANCE? IN COMPLIANCE WITH THE AMERICANS WITH DISABILITIES ACT, IF YOU NEED SPECIAL ASSISTANCE TO PARTICIPATE IN THIS MEETING, PLEASE CONTACT THE PUBLIC WORKS DIRECTOR AT (909) 421-7279. NOTIFICATION 48 HOURS PRIOR TO THE MEETING WILL ENABLE THE CITY TO MAKE REASONABLE ARRANGEMENTS TO ENSURE ACCESSIBILITY TO THIS MEETING (28 CAR 35.102-35.104 ADA Title II).

HOW TO ATTEND THE MEETING.
(1) Members of the public may attend the meeting in person.

HOW TO MAKE A PUBLIC COMMENT.
(1) Appear at the meeting and speak during the public comment period. There is a 5-minute time limit. (2) You may submit a public comment in writing to the Rialto Utility Authority by email at [email protected].

Call to Order By:

ROLL CALL
CLOSED SESSION:

WS-26-0421 CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED

LITIGATION
Pursuant to Government Code section 54956.9(d)(2)
Significant Exposure to Litigation
Number of Matters: one (1)
OPEN SESSION:

CITY ATTORNEY'S REPORT ON CLOSED SESSION

ORAL COMMUNICATIONS/PUBLIC COMMENTS

APPROVAL OF MINUTES
WS-26-0424 Minutes from May 28, 2026 Meeting
Minutes from the 05 28 2026 meetingAttachments:

Page 2 ends

2 June 25, 2026Water Subcommittee Regular Meeting - Final

REPORTS/DISCUSSION ITEMS
WS-26-0432 Update on Capital Improvement Projects
CIP PowerPointAttachments:

WS-26-0431 Update on the Cactus Basin Recharge
WS-26-0423 Update on Bloomington Business Park Extraterritorial Agreement Sewer & Forcemain Improvement PlansAttachments:

WS-26-0422 Update on the Septic-to-Sewer Project
WS-26-0422_Septic to Sewer-Cheshire PowerPointAttachments:

UTILITIES UPDATE
WS-26-0425 Utilities Updates:

1. Update on FEMA /Cal OES Hazard Mitigation Grant Program (HMGP) Sub application AP-1974.

2. Veolia’s Monthly Operations Reports (MOR):
a. June 2026 (reporting period April 2026)
VeoliaRWS Monthly Operations Report_Period March 2026_MAY REPORTAttachments:

UPCOMING MEETING/FUTURE DISCUSSION ITEMS

ADJOURNMENT

Page 3 ends

3 City of Rialto
Legislation Text
File #: WS-26-0421, Version: 1, Agenda #:

For Water Subcommittee Meeting June 25, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works

CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED LITIGATION
Pursuant to Government Code section 54956.9(d)(2)
Significant Exposure to Litigation
Number of Matters: one (1)
City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
4 City of Rialto
Legislation Text
File #: WS-26-0424, Version: 1, Agenda #:

For Water Subcommittee Meeting June 25, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works FROM: Nicole Hemmans, Senior Administrative Analyst Minutes from May 28, 2026 Meeting
City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
5 1

CITY OF RIALTO

REGULAR MEETING OF THE WATER SUBCOMMITTEE
May 28, 2026 - 10:00 A.M.

MINUTES

The Regular meeting of the Water Subcommittee of the City of Rialto was held in the Civic Center Council Chambers located at 150 S. Palm Avenue, Rialto, California 92376, on Thursday, May 28, 2026.

o0o

CALL TO ORDER Call to order at 10:00 A.M.

o0o

ROLL CALL Senior Administrative Analyst Nicole Hemmans took the roll call.

Subcommittee Members / City Staff:

Mayor Joe Baca
Mayor Pro Tem Ed Scott
Tanya Williams, City Manager
Yazdan Emrani, P.E., Director of Public Works
Shandy Dittman, Principal Budget & Financial Analyst
Robert Khuu, Assistant City Attorney
Janet Franco, Deputy Director of Finance
Amparo Corona, Principal Budget and Financial Analyst
Christopher Jensen, Rialto Fire Chief
Nicole Hemmans, Senior Administrative Analyst

Additional Attendees:

Stephen Dopudja, Dopudja & Wells Inc.

John Schatz, Legal Consultant
Peter Luchetti, RWS/Table Rock (Virtual Attendance)
Chandrasekar Venkatraman, RWS/Veolia
Troy McCoy, RWS/Veolia
Marlon Brosco, RWS/Veolia
Soheil Sadighi, RWS/Veolia
David Terry, RWS/Veolia

o0o

PUBLIC COMMENTS Public comment received on May 28, 2026:

♦ None.

6 2

o0o

APPROVAL OF MINUTES

WS-26-0368 – Approval of April 30,
2026, meeting minutes.
(ACTION)

Mayor Baca asked if there were any comments pertaining to the minutes.

♦ None

o0o

NEW BUSINESS ITEMS

WS-26-0367 – Update on the Citywide
Integrated Security Projec t. (Receive &
File)

Staff provided an update on the Citywide Integrated Security Project.

Questions & Comments
♦ Staff confirmed Artificial Intelligence (AI) capabilities will be integrated into the security system to enhance monitoring and operational effectiveness.

♦ Mayor Pro Tem Scott inquired whether the company that constructed the new Police Station submitted a bid for the security system project.

o Mr. Dopudja stated that he was uncertain whether the
company was among the bidders as bids were not yet
received. However, he noted that the project was
coordinated through Triad and the City’s Police
Department.

o0o

WS-26-0365 – Receive and File the 2025
Consumer Confidence Report for Drinking
Water and Provide Feedback.

Staff requested feedback on the 2025 Consumer Confidence Report (CCR) for Drinking Water.

Questions & Comments
♦ Staff confirmed that no regulatory exceedances were identified in the Consumer Confidence Report (CCR).

♦ The 2025 CCR confirmed that the City of Rialto’s drinking water meets or exceeds all of the state of California regulatory compliance.

o0o

7 3

WS-26-0366 – Update on the River
Ranch Sewer Force Main Relocation
Project.

Staff requested feedback regarding Placement of sewer service charges on the County Property Tax Roll for Delinquent Accounts.
.

Questions & Comments
♦ Mayor Baca inquired if the recovered revenue is included in the Budget the City Budget?

o Staff confirmed that the it is included in the non- general fund section of the City’s budget.

♦ Mayor Baca inquired how recovered revenue is allocated and utilized.

o Staff advised that t he recovered revenue goes towards business operations.

o0o

WS-26-0369 – Utilities Update

The Water Subcommittee received the following updates:

1. Veolia’s Monthly Operations Reports (MOR):
a) May 2026 (reporting period March 2026)

o0o

UPCOMING MEETINGS/OTHER

DISCUSSION ITEMS
The next Water Subcommittee meeting is scheduled for Thursday, June 25, 2026, at 10:00 a.m.

o0o

ADJOURNMENT The meeting adjourned at 10:22 PM.

8 4

9 City of Rialto
Legislation Text
File #: WS-26-0432, Version: 1, Agenda #:

For Water Subcommittee Meeting June 25, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works FROM: Nicole Hemmans, Senior Administrative Analyst Update on Capital Improvement Projects
ANALYSIS/DISCUSSION:

RWS/Veolia will be providing an update on the Capital Improvement Projects. POWERPOINT City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
10 Rialto Water Subcommittee Meeting
Capital Improvement Projects
Veolia North America
June 25th, 2026
11 Active CIP Projects Update: $48.2 MM
● Solids Handling Project ($35.6 MM)
● Automated Meter Reading ($7.99 MM)
● Sycamore Trunk Line ($3.09 MM)
● Pressure Relief Valves (PRV’s) ( FCWA DRAFT $1.39 MM) 12 Solids Upgrade Project
● Project description: WWTP Solids Handling Modernization ○ Primary Sludge Screening: New screening to remove debris (plastics, rags, hair) to protect downstream equipment and increase efficiency.
○ Thickening Upgrade: Replace old Gravity Belt Thickeners with enclosed Rotary Drum Thickeners to control odors, restore redundancy, and optimize efficiency. ○ Digestion & Storage: New Dystor membrane gas holder covers with advanced monitoring, and restore the sludge storage tank with new mixing systems for uniform feed. ○ Dewatering Upgrade: Transition from old Belt Filter Presses to Centrifuges to improve the dewatering process.
● Delivery method: Design-Build
○ AECOM: designer and engineer of record.
○ WM Lyles: General contractor.
13 Solids Upgrade Project
● Status:
○ Design for construction: Drawings and specifications 100% complete. ○ Long-lead procurement: Centrifuges, control panels, VFDs, secured and in fabrication. ○ Contractor mobilization: On-going with project trailers on-site and construction equipment underway.
○ Engineering support during construction: RFIs, submittals, etc. is ongoing. ○ Evoqua Dystor Issue Resolved- No design, schedule or cost implications. ● Next steps:
○ Continue with submittals, RFIs, etc.
○ Potholing to locate underground utilities.
○ Selective demolition
○ Initial underground work.
14 Advanced Metering Infrastructure (AMI)
● Project description:
○ This project deploys an Advanced Metering Infrastructure (AMI) network to upgrade ~12,000 water meters, transitioning the system from manual to automated monthly readings. The scope includes retrofitting existing AMI-ready meters, replacing the remaining units, and integrating a new Meter Data Management (MDM) system with billing and customer portals. This upgrade drives operational efficiency.
● Delivery method: Design-Build
○ Aqua Metric: Prime contractor. Concord Utility Services: Installation ● Status:
○ Site Survey: sucessfully completed wtihout any cost or schdule issues revelaed. ○ The project team is currently working on the integration plans in anticipation of mass deployment.
● Next steps:
○ Mass deployment, installation of new meters, retrofit of existing, etc. 15 Advanced Metering Infrastructure (AMI)
● Equipment installation
16 Sycamore Sewer Trunk Line Project
● Project description:
○ The goal of this project is to upsize the City of Rialto's sewer main on Sycamore Avenue to accommodate current and future housing growth. Driven by rapid residential development to the north, this immediate upgrade provides relief to the existing 8-inch line nearing maximum capacity to prevent system failure. This work marks Phase 2 of a three-phase master plan to systematically modernize the city’s sewer trunk network by installing approximately 5,200 lf of dedicated 15-inch sewer trunk main, extending south from the Sycamore Sewer Lift Station down Sycamore Avenue to Baseline Road, where it will connect with the Phase 1 project. ● Delivery method: Design-Bid-Build
○ Provost and Pritchard: designer and engineer of record ○ Ferreira Construction: General contractor
17 Sycamore Sewer Trunk Line Project
● Status:
○ Procurement and contracting: 100% complete
○ Mobilization, potholing and staking: currently ongoing ● Next steps:
○ Finish mobilizing and start the installation of the new line. 18 Pressure Reducing Valve (PRV) Station
● Project description:
○ The City of Rialto is enhancing its water system by installing two new 2,000 gpm Pressure Reducing Valve (PRV) stations along Merrill Avenue to optimize pressure management between Zones 2 and 3A.
● Delivery method: Design-Build
○ Design engineer and general contractor: TBD
● Status: RFP
○ The project was published in Planetbids on: 4/26/2026 ○ Two bids were received on: 6/12/2026
■ Apparent low bidder is Ferreira Construction with a cost of $1,156,500. Total project cost of $1,387,800 that includes the 20% fee. *Bid evaluation is currently ongoing ■ This is considerably higher than the initial cost estiamte of $750 K plus ● Next steps:
○ Finish procurement and present FCWA for approval.
19 January 13, 2026
From the Water Economics
Rate Study Presentation to
City Council
20 21
22 Questions?
23 City of Rialto
Legislation Text
File #: WS-26-0431, Version: 1, Agenda #:

The City of Rialto is participating in a facilitated stakeholder process led by the County of San Bernardino and the San Bernardino Valley Municipal Water District to evaluate the use of the County’sCactus Flood Retention Basins for groundwater recharge utilizing imported water from the State Water Project. The effort is intended to enhance groundwater replenishment within the underlying basin, which is currently considered critically over drafted.

In addition to the City of Rialto, participating agencies include West Valley Water District and Fontana Union Water Company. The collaborative process is intended to establish a framework for the operation, management, and allocation of recharge benefits associated with the project.

ANALYSIS/DISCUSSION:

The facilitated process experienced several months of delay due to the unavailability of the facilitator.

The facilitator has recently resumed project activities and is coordinating with participating agencies to reengage the stakeholder group and continue discussions.

Despite the delay in the facilitation process, technical evaluations and supporting analyses have continued to advance.

Staff will provide the Water Subcommittee with a verbal update regarding the status of the facilitation effort, recent technical progress, and anticipated next steps.

City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
24 City of Rialto
Legislation Text
File #: WS-26-0423, Version: 1, Agenda #:

For Water Subcommittee Meeting June 25, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, Director of Public Works
FROM: Nicole Hemmans, Senior Administrative Analyst
Update on Bloomington Business Park Extraterritorial Agreement City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
25 02/19/2025
02/19/2025
26 02/19/2025
27 02/19/2025
28 02/19/2025
29 02/19/2025
30 02/19/2025
31 02/19/2025
32 02/19/2025
33 02/19/2025
34 02/19/2025
35 02/19/2025
36 02/19/2025
37 City of Rialto
Legislation Text
File #: WS-26-0422, Version: 1, Agenda #:

For Water Subcommittee Meeting June 25, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani P.E., Director of Utilities
FROM: Nicole Hemmans, Senior Administrative Analyst
Update on the Septic-to-Sewer Project
BACKGROUND:

The City was awarded a $319,000 grant from the Santa Ana Watershed Project Authority (SAWPA) to support a septic-to-sewer conversion project. Following an evaluation of potential project locations, staff identified an area along West Cheshire Street, east of Ayala Drive, as the most viable candidate for implementation.

The proposed project would provide sanitary sewer service to approximately twelve existing single- family residences that currently rely on individual septic systems. Based on preliminary assessments, the grant funding is expected to cover the installation of an approximately 8-inch sewer main and three manholes necessary to serve the affected properties.

ANALYSIS/DISCUSSION:

While the grant funding may be sufficient to construct the public sewer infrastructure, property owners would remain responsible for the costs associated with connecting their residences to the new sewer system and properly abandoning their existing septic systems. These private conversion costs may present a financial challenge for some homeowners, particularly if their existing septic systems remain functional and do not require immediate replacement.

Staff is seeking feedback from the Water Subcommittee regarding the overall feasibility of the proposed project and potential strategies for engaging affected residents. This discussion will help determine the level of homeowner interest in participating in the conversion program and assist staff in evaluating the project's viability moving forward.

City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
38 West Cheshire Street
Potential Septic to-Sewer Conversion
Project For Twelve Residences
West Cheshire Street
LEGEND
Proposed Sewer
Proposed Manhole
Existing Sewer
Existing Manhole
39 Potential Private Property Septic
System Conversion Challenges
• South half of the street will require that
sewer lateral cross the waterline and
electrical utility.
• Approximately half of the 12 properties (6
total) have landscaping that may pose
challenges to abandoning the existing
residential septic systems.
• Large trees, retaining walls, wrought iron
fencing, etc.
• Remedying the challenges will likely increase
the onsite abandonment and reconnection costs.
• Grant would not cover the cost of private
residential conversions.
• The project may not be economically viable
for residents until their septic systems need
West Cheshire Street
Potential Septic to-Sewer Project
40 City of Rialto
Legislation Text
File #: WS-26-0425, Version: 1, Agenda #:

1. Update on FEMA/Cal OES Hazard Mitigation Grant Program (HMGP) Sub application AP- 1974.

2. Veolia’s Monthly Operations Reports (MOR):
a. June 2026 (reporting period April 2026)
City of Rialto Printed on 6/22/2026Page 1 of 1
powered by Legistar™
41 RWS/Veolia
Monthly Operation
Report
May 2026
Reporting period March 2026
42 RIALTO

CUSTOMER SERVICE & REVENUE

MONTHLY OPERATIONS REPORT

Reporting Period:

March 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
43 Table of Contents
I. CUSTOMER SERVICE SUMMARY............................................................................................. 3 II. CALL CENTER PERFORMANCE ................................................................................................. 3 III. AUTOMATED SERVICES ........................................................................................................... 3 IV. CONSUMPTION & BILLING ...................................................................................................... 4 A. Consumption .................................................................................................................... 4 B. Billing ................................................................................................................................ 5 V. REVENUE & AGING .................................................................................................................. 5 A. Revenue ........................................................................................................................... 5 B. Aging ................................................................................................................................ 6 C. Bad Debt........................................................................................................................... 6 VI. SERVICE ORDERS ..................................................................................................................... 7 VII. OTHER ACTIVITIES ................................................................................................................... 7 VIII. REVENUE REPORT ................................................................................................................... 7 A. Revenue Summary ........................................................................................................... 7 B. Non Rate Revenue - Extraterritorial Customers ............................................................. 7 C. Non-Rate Revenue – Other ............................................................................................. 8 D. Development Impact Fees ............................................................................................... 8 E. Rialto Basin Water Rights and Leasing ........................................................................... 8 F. Payment Collection Method – Fiscal Year to Date ....................................................... 10 G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison ..................... 10 H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison .................. 10 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date ........................... 11 J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison ............ 11 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging ......................... 12

44 3

I. CUSTOMER SERVICE SUMMARY
During this reporting month, the Customer Service team provided call service level of

92.8%. Out of 1,247 inbound calls answered 1,157 answered within the first 30 seconds.

Water consumption has decreased by 6.9% when compared against previous month. When compared against last year, consumption has increased by 1.4%.

Sewer revenue has decreased by 2.2% compared to the prior month and increased by less than 1.0% from last year.

II. CALL CENTER PERFORMANCE
During this reporting month, service level was 92.8% with 1,157 out of 1,247 being answered within the first 30 seconds. Overall average wait time was thirty-two (32) seconds.

III. AUTOMATED SERVICES
About 13,310 or 57.7% of the rate payers have created log-ins to access their accounts online. Of these customers, with online access, 51.1% have chosen the e-bill option. This e- bill participation is 6.5% increase from March of the prior year.

91.8% 89.1% 88.0% 85.0% 86.7%

80.1%

90.5% 87.8% 86.6% 88.7% 93.0%

85.0%

92.8%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%
100.0%
0 200
400
600
800
1,000
1,200
1,400
1,600
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Answer in 30 Sec 1,183 1,148 1,120 1,256 1,263 1,043 1,277 1,212 1,090 1,257 1,124 973 1,157 Calls Answered 1,288 1,287 1,272 1,479 1,456 1,294 1,411 1,379 1,258 1,417 1,208 1,148 1,247 Service Level 91.8% 89.1% 88.0% 85.0% 86.7% 80.1% 90.5% 87.8% 86.6% 88.7% 93.0% 85.0% 92.8% Call Center Performance
Answer in 30 Sec Calls Answered Service Level
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Number of Bills 22,657 22,694 22,705 22,770 22,792 22,838 22,864 22,875 22,927 22,913 23,045 22,987 23,031 Number of Bill Adjustments (during billing) 29 25 15 18 29 10 7 8 11 27 47 47 32 Automated Over the Phone Payments 2,509 2,454 2,276 2,578 2,596 2,344 2,531 2,560 2,089 2,404 2,326 2,339 2,656 Online Payment 9,912 9,798 8,434 9,800 10,260 8,691 11,224 10,369 7,614 10,432 8,771 10,145 11,774 E-bill Participants 6,069 5,969 6,000 6,074 6,134 6,185 6,233 6,290 6,332 6,372 6,401 6,421 6,476 Auto Pay Participants (New Portal) 4,536 4,554 4,630 4,696 4,728 4,776 4,834 4,881 4,923 4,978 5,025 5,083 5,137 PayNearMe 99 97 88 88 88 88 103 85 80 80 60 81 76
45 4

IV. CONSUMPTION & BILLING
A. Consumption
Water consumption has decreased by 6.9% when compared against previous month.

When compared against last year, consumption has increased 1.4%.

Low consumption is due to billing adjustment for a large water bottling company. The City has requested change from Category II to Category III.

January Feburary March April May June July August Septembe r October November December
2024 Water 206,431 180,655 200,494 182,612 212,666 337,500 324,399 361,294 446,508 312,312 360,721 253,250 2025 Water 259,394 284,167 203,166 212,580 316,422 285,524 323,411 430,678 345,305 310,177 330,460 217,069 2026 Water 253,829 221,382 206,070
0 50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
HCF
Billed Consumption Yearly Comparison Water
January February March April May June July August September October November December 2024 Sewer 55,865 50,136 60,877 55,837 54,976 64,339 64,897 68,143 79,931 67,254 73,871 63,136 2025 Sewer 58,347 65,403 51,489 50,598 58,461 59,483 56,496 69,265 66,908 62,147 69,061 61,468 2026 Sewer 60,658 60,373 45,113
0 10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
HCF (hundred cubic feet)
Billed Consumption Yearly Comparison Sewer
(Commercial Only)
46 5

B. Billing
A total of 23,031 bills were mailed or sent out electronically in March. Billing accuracy was

99.8% with thirty-two (32) requiring adjustments after bill generation.

V. REVENUE & AGING
A. Revenue
Water revenue has decreased 3.8% when compared against the prior month and increased

1.4% when compared against previous year. Sewer revenue has decreased by 2.2% compared to the prior month and increased by less than 1.0% from last year.

(
Please consider the scale of the graph as doubled height does not mean double the amount)

January Feburary March April May June July August Septembe r October November December
2024 Water Sales $912,498. $852,016. $881,079. $864,955. $930,910. $1,229,95 $1,194,46 $1,291,72 $1,510,71 $1,170,74 $1,297,36 $1,038,61 2025 Water Sales $1,059,329 $1,249,252 $1,039,421 $1,064,341 $1,341,734 $1,257,370 $1,358,417 $1,622,939 $1,420,962 $1,330,008 $1,387,141 $1,083,202 2026 Water Sales $1,180,870 $1,095,263 $1,053,630
$-
$200,000.00
$400,000.00
$600,000.00
$800,000.00
$1,000,000.00
$1,200,000.00
$1,400,000.00
$1,600,000.00
$1,800,000.00
Dollars ($)
Annual Water Sales Comparison
January Feburary March April May June July August September October November December 2024 Sewer Sales $2,158,668 $2,147,783 $2,229,038 $2,190,195 $2,186,025 $2,260,077 $2,264,418 $2,288,863 $2,385,936 $2,295,859 $2,344,329 $2,264,375 2025 Sewer Sales $2,227,202 $2,415,779 $2,331,147 $2,322,513 $2,384,586 $2,384,448 $2,367,499 $2,463,167 $2,440,356 $2,408,576 $2,460,034 $2,404,771 2026 Sewer Sales $2,408,925 $2,404,957 $2,351,579
$1,950,000.00
$2,000,000.00
$2,050,000.00
$2,100,000.00
$2,150,000.00
$2,200,000.00
$2,250,000.00
$2,300,000.00
$2,350,000.00
$2,400,000.00
$2,450,000.00
$2,500,000.00
Dollars ($)
Annual Sewer Sales
47 6

B. Aging
The total aging balance has decreased by 6.6% see first table below. For balances >30-days only, water has decreased 23.5% and wastewater has increased by 7.5%. Sewer balances are expected to continue rising until tax roll in year 2026.

C. Bad Debt
Seven (7) accounts were sent to collections for a total amount of $4,114.39. These bad debts arise from customers moving out or selling the property and not closing the account with final payments.
$0.00
$500,000.00
$1,000,000.00
$1,500,000.00
$2,000,000.00
$2,500,000.00
$3,000,000.00
$3,500,000.00
$4,000,000.00
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Aging Balances in Dollars ($)
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 WTR $1,292,967 $1,111,102 $1,487,957 $1,432,711 $1,518,645 $2,039,090 $1,720,916 $1,542,853 $1,648,072 $1,430,158 $1,656,743 $1,604,777 $1,307,087 SWR $3,196,836 $3,180,111 $3,719,707 $3,484,523 $2,007,183 $2,577,088 $2,513,640 $2,396,727 $2,706,744 $2,735,737 $3,152,037 $3,287,157 $3,260,863 Historical Aging Totals
Water and Sewer
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
$2,000
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Thousands
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 WATER $478,675 $359,409 $396,223 $485,523 $578,110 $683,117 $661,838 $642,879 $607,605 $670,880 $679,989 $703,428 $538,327 SEWER $1,421,880 $1,580,609 $1,793,227 $1,813,326 $538,015 $676,294 $793,637 $876,236 $943,678 $1,129,440 $1,197,669 $1,415,022 $1,520,726 Aging Balances Over 30 Days Water and Sewer
(April 2021 forward contains both consumption and meter charges) 48 7

VI. SERVICE ORDERS
361 service orders were initiated by the customer service team during the reporting month. Of this total, 87 service orders or 24% were due to occupant changes. 230 service orders were initiated to accommodate water disconnection for non-payment and reconnection of water services when customer set up (or reinstate) a payment arrangement with down payment.

VII. OTHER ACTIVITIES
CS department is operating with full staff with no injuries reported.

Total numbers of 128 disconnections were performed during the March 2026.

VIII. REVENUE REPORT
A. Revenue Summary
Cash Revenue is compiled and reconciled to the merchant account on a daily basis. Cash receipts and deposits are made daily and internal controls are reviewed regularly to ensure safeguarding of assets and proper recording of all transactions. Total reve nue collected in March 2026 is $ 4,757,000 whereas Non -Rate Revenue is $ 212,000; Utility Revenue is $4,486,000 and Tax / Ambulance Revenue at $59,000.

RWS collects Utility User Taxes and Ambulance Fees on behalf of the City of Rialto. The Utility User Tax (UUT) rates are based on the total billed amount, therefore the collection fluctuates as billed amounts change. The total UUT charges collected in March 2026 and March 2025 are $54,000 and $90,000 respectively. The large variance in collection of UUT charges is due to the City exempting UUT charges to the Residential customers beginning Jan uary 2025 through December 2025. Ambulance Revenue is also collected on behalf of the City of Rialto totaling $5,000 in March 2026 and $5,000 in March 2025.

B. Non Rate Revenue - Extraterritorial Customers
RWS bills the City of Fontana $133,000 each month for extraterritorial sewer usage.

Colton Unified School District is in agreement with RWS to pay $5,000 monthly for sewage connections based on enrollment rates provided each school year.

An extraterritorial agreement to provide sewer service was executed between the City of Rialto and the County of San Bernardino —County Service Area 70, Zone BL (Bloomington). 49 8

This housing development project generates extraterritorial sewer service revenue of $20,000 per month.

The City has an agreement with Social Science Services dba Cedar House Life Change Center to provide extraterritorial sewer service providing sewer revenue of about $5,000 each month.

C. Non-Rate Revenue – Other
Other revenue is generated by leasing space for cell towers to AT&T for $2,073. Sprint lease is at a currently contracted rate of $2,000 each month. Vertical Bridge also provides $2,400 a month of cell tower generated Revenue.

Rialto Bioenergy Solutions subleased a City property for $10,750 a month.

The City and San Bernardino Valley Municipal Water District have entered into a Brine Line Capacity Agreement on January 23, 2021. This agreement pertains to the use of its interest in the SARI Line and di scharge of certain brine waste to the SARI Line exclusively from the operation of Rialto Bioenergy Facilities within the City’s boundaries. The revenue generated in this agreement consists of quarterly rent of $37,500 along with the Fixed Pipeline Capacity Fee of $3,300 per month and Fixed Treatment Plant Capacity Fee of $3,300 per month. In addition, a variable fee of any discharge costs are also billed.

The San Bernardino Valley Water District (SBVWD) reimburses RWS for water conservation programs provided to customers. A quarterly bill is delivered directly by the City.

D. Development Impact Fees
Development Impact Fees (“DIF”) are paid to the City of Rialto as various developments are completed in the City. As such, the City of Rialto receives monie s from the various developments, which is then distributed to RWS. There was no DIF payment received in March of 2025.

E. Rialto Basin Water Rights and Leasing
A Standby Water Lease Agreement between Fontana Union Water Company and City of Rialto is in effec t. For the 2024- 2025 Water Year, RWS billed San Bernardino County the amount of $349,264 for the Standby Charges and Production Charge. The County paid and has no further Water Lease obligations in the current year.

In addition, the County is also bille d annually for Rialto Well #3’s summertime electricity costs based on peak usage.
50 9

Cash Collections by Payment Method – Rialto Water Services

Transaction Counts for Carrier Deposits, Remote Deposits, UB Bill Conc Service (EBOX), and Lockbox Deposits reflect number of batches deposited to the bank. Transaction counts for credit card POS, IVR, and Pay-Near-Me transactions are per number of customer payments. IVR payments are received and process by Paymentus on the day the transactions are made.

General ledger are posted and accounted for the following day the payments are processed.

Payment Method Description
Transaction
Count MARCH 2026 %
Carrier Deposits Cash deposits prepared per day for transport to US Bank. 22 $ 146,021 3.52% Remote Deposits Scanned batches of checks payments made at the customer service counter 22 538,267 12.98% EBOX Batches of electronic customer payments posted
to customer accounts at US Bank. 22 324,116 7.81%

PAYMENTUS - IVR /
Paymentus / Walk-in
Credit Card payment
Customer payments by credit cards and ACH /
eCheck payments through an Interactive Voice
Response system using a touchtone
phone.Payments originated from Merchant online
service 15,556 2,316,170 55.84% Lockbox Deposits Batches of customer payments mailed in to US Bank's lockbox 22 813,647 19.62% Pay Near Me
Cash payment service that allows customers to pay
at a local 7-Eleven, CVS, Walmart or Family Dollar
stores. 80 9,326 0.22% Total Revenue per Bank $ 4,147,548 100.00% Recon to RUA Recap:

Adj detailed in RUA 609,646
Prior mo. Correction
RUA increase in Cash $ 4,757,194
51 10

F. Payment Collection Method – Fiscal Year to Date

G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison

H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison

Jul 2025 Aug 2025 SEPT 2025 OCT 2025 NOV 2025 DEC 2025 JAN 2026 FEB 2026 MAR 2026 Total % Carrier Deposits 144,793$ 140,286$ 155,654$ 147,234$ 103,022$ 142,623$ 127,207$ 133,155$ 146,021$ 1,239,994$ 3.40% Remote Deposits 499,489 241,420 686,008 995,009 311,584 762,404 510,265 1,020,346 538,267 5,564,792$ 15.28% EBOX 407,888 286,741 367,169 378,253 237,351 341,059 269,016 296,667 324,116 2,908,262$ 7.98% Paymentus, IVR, Credit Cards 2,118,383 1,853,657 2,370,061 2,278,360 1,572,041 2,080,662 1,722,987 2,014,094 2,316,170 18,326,415$ 50.31% Lockbox Deposits 1,176,928 904,658 1,003,875 1,162,475 707,921 848,106 822,102 855,632 813,647 8,295,344$ 22.77% Pay Near Me 11,821 11,616 14,142 11,316 9,254 11,254 5,868 10,941 9,326 95,539$ 0.26% Total Revenue to Bank 4,359,302$ 3,438,377$ 4,596,910$ 4,972,646$ 2,941,173$ 4,186,107$ 3,457,446$ 4,330,835$ 4,147,548$ 36,430,344$ 100.00% NSF (10,757) (15,745) (17,442) (15,892) (14,628) (20,682) (31,415) (19,746) (15,869) (162,175)$ Net deposits 4,348,546$ 3,422,632$ 4,579,468$ 4,956,754$ 2,926,545$ 4,165,425$ 3,426,031$ 4,311,089$ 4,131,679$ 36,268,169$ Mar 2026 Mar 2025 Variance
UUT Water 21,796$ 30,952$ (9,156)$
UUT Sewer 31,851 58,902 (27,052)
Ambulance 5,357 5,093 264
Total 59,003$ 94,947$ (35,944)$
Mar 2026 Mar 2025 Variance
Non-Rate / Extra Territorial
Revenue 212,224$ 258,641$ (46,417)$
Utility Revenue 4,485,967$ 3,686,384$ 799,583
Total 4,698,191$ 3,945,025$ 753,166$
52 11

I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date

J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison

Jul 2025 Aug 2025 Sept 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Total Non-Rate Revenue
Cell Tower Rent,Llease 21,485 17,154 15,080 53,897 13,580 14,324 4,330 14,897 48,457 203,205 Interest Income - - - - - - - - - -

NRR-FOG - - - - - - - - - - Municipal Water Sales - - - - - 349,264 - - - 349,264 Extra Terr- Sewage 169,483 6,711 107,820 583,011 35,551 174,217 170,577 257,617 144,260 1,649,247 Non-Rate Misc Water - - - - - - 1,032 - - 1,032 Abatement of Expenses - - - - - - - - - - Water Meter Lost/Damaged/Repl 22,650 17,176 13,295 16,075 14,366 1,557 10,659 10,065 10,340 116,184 Misc Fees - New Occ., Same Day Svc 10,815 7,182 7,522 9,355 6,949 7,834 6,896 6,779 9,154 72,485 Miscellaneous Revenue - Sewer - - - - - 5 - - - 5 NSF - - - - - - 40 - 13 53 Total Non-Rate Revenue 224,433$ 48,223$ 143,717$ 662,339$ 70,447$ 547,200$ 193,534$ 289,358$ 212,224$ 2,391,475 Utility Revenue
Water Penalty 30,460 33,752 31,754 37,988 34,640 29,186 27,933 28,838 33,696 288,246 Sewer Penalty 74,191 48,802 42,100 54,993 40,418 43,022 48,483 41,187 54,314 447,511 Turf Removal, Hi-Eff Rebate (100) - - - - - - (100) - (200) Water Deposits Billed 16,142 15,863 16,027 17,938 13,085 7,527 16,427 13,248 14,730 130,987 Hydrant Deposits 315 158 161 68 - 197 - 702 - 1,601 Sewer Deposits Paid - - - - - - - - - - Sewer Deposits Billed 16,204 16,667 15,480 15,055 12,065 9,677 12,804 12,711 15,481 126,144 Water 1,329,427 1,148,584 1,723,704 1,493,556 835,225 1,291,024 970,084 1,197,349 1,381,042 11,369,995 Sewer 2,760,649 1,949,745 2,492,623 2,526,711 1,594,009 2,385,765 2,006,500 2,296,925 2,521,401 20,534,328 Unapplied Credits 26,588 50,012 109,984 80,529 180,113 (93,772) 63,577 (141,671) (137,801) 137,559 Bad Debt Sewer - - - - - - - 985 292 1,277 Bad Debt Water - - - - - - - - - - Tax Roll Sewer - - - - - - - - 602,811 602,811 Collection Agency - Water - - - - - - - - - - Collection Agency - Sewer - - - - - - - - - - Collection Agency - Misc Water - - - - - - - - - - Total Utility Revenue 4,253,876$ 3,263,582$ 4,431,832$ 4,226,839$ 2,709,556$ 3,672,625$ 3,145,808$ 3,450,175$ 4,485,967$ 33,640,259$ Total Non-Rate + Utility Rev. 4,478,309 3,311,805 4,575,549 4,889,178 2,780,002 4,219,825 3,339,342 3,739,533 4,698,191 36,031,734 Increase to Cash
per Incode
Adjustments
Required to GL
Cash
Fund 660-Sewer Fund 670-Water Total Cash Per
GL
Adjustments To
Match RUA to Bank
Cash/CC/Cks
Deposit To Bank
March 2026 4,757,194 15,364 3,327,501 1,414,328 4,757,194 (609,646) 4,147,548 March 2025 4,039,972 10,648 2,715,224 1,314,100 4,039,972 99,492 4,139,464 53 12

K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging

AT&T makes annual payment on cell tower rent.

Social Science Service (Cedar House) has been contacted for the outstanding balance.

City of Fontana is current with its obligations.

Colton Unified School District has no balance due.

County of San Bernardino has been contacted for the unpaid balance.

Rialto Bioenergy Solutions has been contacted regarding the unpaid rent.

Vertical Bridge Holdco, LLC and Sprint: Vertical Bridge and Sprint have been co ntacted for open Invoices as well.

San Bernardino County Waste System Division’s has no balance due.

Name
Total as of
3/31/2026 Current 31 to 60 days 61 to 90 days >90 days
AT&T - Easton -$ - - - - Cedar House 13,971 7,166 - 6,805 - CITY OF FONTANA 131,182 131,182 - - - Colton Unified School District - - - - - County of San Bernardino-CSA 70 BL 41,895 20,948 - 20,948 - Rialto BioEnergy Facilities 138,500 101,000 - 37,500 - Sprint-Nextel 5,530 - - - 5,530 San Bernardino Co Waste System Div - - - - - SB Valley Mun Water District - - - - - Vertical Bridge Holdco, LLC (CIG) 16,035 2,830 2,830 2,830 7,544 Grand Total 347,113$ 263,126$ 2,830$ 68,083$ 13,074$ 54 1

RIALTO WATER

MONTHLY OPERATIONS REPORT

March 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services

55 2

RIALTO WATER

OPERATIONS AND MAINTENANCE REPORT

Contents
I. EXECUTIVE SUMMARY 3
A. Water Production Totals 4
B. Static Water Levels 6
II. REGULATORY 7
A. Regulatory Submittals 7
B. Sample Site Location Results 8
C. Violations 10
D. Source Water Total Dissolved Solids (TDS) 10
III. HEALTH AND SAFETY 10
A. Monthly Safety Program Overview 10
IV. CHEMICAL USE 10
V. ELECTRICAL USE 11
VI. WATER QUALITY COMPLAINTS 11
VII. OPERATIONS UPDATE 11
A. Operational Wells 12
B. Valve Activity 12
C. Hydrant Flushing 12
D. Sanitary Survey 13
VIII. ASSET MANAGEMENT 13
A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues, Customer call outs , Hydrant hits. 13
B. Major Equipment and/or Machinery Outages 14
IX. RAINFALL TOTALS 14

56 3

I. EXECUTIVE SUMMARY
In the month of March, the water distribution network achieved compliance with all permit requirements. There were no sample anomalies that required secondary sampling.

There were no significant issues with water availability and the purchasing of water remained consistent and daily equalization tank levels remained at anticipated volume for customer availability.

A. Water Production Totals
Total Water Delivered into the Rialto Water System:

March 2026 DAILY PRODUCTION TOTALS IN ACRE FEET
Delivered via BLF
Purchased
Date Chino 2 City 2 Rialto 3 Rialto 5 Miro 3 EW-1 City 4A B6-9 Cactus(A) ORTP(B) TOTAL(C) 3/1/26 5.39 0.00 0.00 0.00 8.47 6.67 10.69 7.97 4.09 0.00 43.27 3/2/26 4.27 0.00 0.00 0.00 7.49 5.87 7.48 9.41 3.19 0.00 37.72 3/3/26 5.26 0.00 0.00 0.00 8.93 6.69 9.08 7.62 3.70 0.00 41.28 3/4/26 5.05 0.00 0.00 0.00 7.94 5.95 4.85 5.81 3.12 0.00 32.72 3/5/26 5.62 0.00 3.49 0.00 1.84 6.43 4.70 3.28 2.87 0.00 28.24 3/6/26 4.87 0.00 4.38 0.00 0.00 6.03 8.99 4.84 2.80 0.00 31.92 3/7/26 5.97 0.00 5.51 0.00 0.00 6.26 9.66 7.81 3.86 0.00 39.06 3/8/26 4.18 0.00 5.88 0.00 0.00 6.75 9.70 8.26 4.48 0.00 39.25 3/9/26 6.50 0.00 5.56 0.00 0.00 5.85 8.76 5.37 3.12 0.00 35.16 3/10/26 4.22 0.35 6.18 0.00 0.00 0.26 8.40 7.92 3.47 0.00 30.80

3/11/26 4.87 7.85 6.29 0.00 0.00 0.00 7.88 5.33 3.31 0.00 35.52 3/12/26 4.98 8.10 6.24 0.00 0.00 0.00 9.17 2.80 3.97 0.00 35.27 3/13/26 5.56 6.20 6.50 0.00 0.00 0.00 9.59 0.00 3.42 0.00 31.27 3/14/26 6.47 8.13 7.23 0.00 0.00 0.00 10.50 4.29 4.57 0.00 41.19 3/15/26 5.12 8.92 5.92 0.00 0.00 0.00 8.71 0.00 4.96 0.00 33.63 3/16/26 5.44 7.99 0.00 0.00 5.47 0.00 9.36 4.04 4.25 0.00 36.55 3/17/26 4.02 7.91 0.00 0.00 5.84 0.00 6.95 3.12 3.70 0.00 31.54 3/18/26 4.96 8.35 0.00 0.00 6.25 0.00 10.10 4.91 4.73 0.00 39.30 57 4

3/19/26 5.23 6.71 0.00 0.00 5.97 0.00 8.71 3.37 3.81 0.00 33.81 3/20/26 5.30 8.88 0.00 0.00 6.63 0.00 9.25 0.76 4.13 0.00 34.95 3/21/26 5.90 9.93 0.00 0.00 8.03 0.00 7.57 2.00 5.46 0.00 38.90 3/22/26 5.39 9.42 0.00 0.00 8.19 0.00 11.15 3.79 5.10 0.00 43.04 3/23/26 5.00 5.57 4.11 0.00 5.14 0.00 4.41 1.08 4.91 0.00 30.23 3/24/26 4.20 9.49 4.75 0.00 3.47 0.00 10.02 2.43 3.90 0.00 38.27 3/25/26 5.62 8.87 3.88 0.00 4.52 0.00 6.77 1.38 4.89 0.00 35.93 3/26/26 5.53 9.45 0.00 0.00 6.36 0.00 8.97 1.40 4.75 0.00 36.47 3/27/26 4.98 9.03 0.99 0.00 5.84 0.00 9.22 1.52 4.22 0.00 35.81 3/28/26 5.33 10.09 0.00 0.00 6.68 0.00 11.00 7.81 6.29 0.00 47.19 3/29/26 4.73 11.43 0.00 0.00 6.47 0.00 8.85 2.46 3.76 0.00 37.70 3/30/26 5.53 7.51 0.00 0.00 6.39 0.00 8.18 2.41 5.69 0.00 35.71 3/31/26 4.45 9.39 0.00 0.00 8.67 0.00 8.28 3.24 3.81 0.00 37.84

TOTAL 159.96 179.56 76.91 0.00 134.60 56.77 266.97 126.42 128.33 0.00 1129.52 MIN 4.02 0.00 0.00 0.00 0.00 0.00 4.41 0.00 2.80 0.00 28.24 MAX 6.50 11.43 7.23 0.00 8.93 6.75 11.15 9.41 6.29 0.00 47.19 AVE 5.15 5.79 2.48 0.00 4.34 1.83 8.61 4.08 4.14 0.00 36.44

(A) - Measured at point of connection of Cactus Reservoir site including production from City 4A. Amount may vary compared to billing.
(B) - Measured at point of connection at Cedar Reservoir. Amount may vary as compared to billing. (C) - City 4A is not included in total. It has been accounted for in the purchased total.

58 5

DATE Booster 1 Booster 2 Booster 3 Booster 4 Booster 5 Booster 6-9 Booster 10 Booster 11 3/1/26 0.00 0.00 6.61 0.00 2.22 7.97 0.00 0.00
3/2/26 0.00 0.00 3.03 0.00 0.00 9.41 0.00 0.00
3/3/26 0.00 0.00 5.77 0.00 0.00 7.62 0.00 0.00
3/4/26 0.00 0.00 0.66 0.00 0.00 5.81 0.00 0.00
3/5/26 0.00 0.00 0.44 0.00 1.43 3.28 0.00 0.00
3/6/26 0.00 0.00 3.39 0.00 1.42 4.84 0.00 0.00
3/7/26 0.00 0.00 4.86 0.00 0.07 7.81 0.00 0.00
3/8/26 0.00 0.00 6.17 0.00 0.00 8.26 0.00 0.00
3/9/26 0.00 0.00 3.01 0.00 0.00 5.37 0.00 0.00
3/10/26 0.00 0.00 7.44 0.00 0.00 7.92 0.00 0.00
3/11/26 0.00 0.00 7.36 0.00 1.26 5.33 0.00 0.00
3/12/26 0.00 0.00 8.39 0.00 4.27 2.80 0.00 0.00
3/13/26 0.00 0.00 3.82 0.00 3.41 0.00 0.00 0.00
3/14/26 0.00 0.00 8.53 0.00 5.09 4.29 0.00 0.00
3/15/26 0.00 0.00 6.59 0.00 8.13 0.00 0.00 0.00
3/16/26 0.00 0.00 8.28 0.00 1.67 4.04 0.00 0.00
3/17/26 0.00 0.00 7.19 0.00 0.41 3.12 0.00 0.00
3/18/26 0.00 0.00 9.82 0.00 0.00 4.91 0.00 0.00
3/19/26 0.00 0.00 6.53 0.00 4.60 3.37 0.00 0.00
3/20/26 0.00 0.00 8.51 0.00 4.72 0.76 0.00 0.00
3/21/26 0.00 0.00 5.33 0.00 6.01 2.00 0.00 0.00
59 6

3/22/26 0.00 0.00 10.11 0.00 3.01 3.79 0.00 0.00
3/23/26 0.00 0.00 6.52 0.00 1.60 1.08 0.00 0.00
3/24/26 0.00 0.00 7.75 0.00 0.79 2.43 0.00 0.00
3/25/26 0.00 0.00 7.12 0.00 3.37 1.38 0.00 0.00
3/26/26 0.00 0.00 7.91 0.00 4.94 1.40 0.00 0.00
3/27/26 0.00 0.00 0.00 0.00 2.51 1.52 0.00 0.00
3/28/26 0.00 0.00 12.96 0.00 9.42 7.81 0.00 0.00
3/29/26 0.00 0.00 8.53 0.00 1.79 2.46 0.00 0.00
3/30/26 0.00 0.00 0.00 0.00 3.72 2.41 0.00 0.00
3/31/26 0.00 0.00 16.49 0.00 0.87 3.24 0.00 0.00
TOTAL 0.00 0.00 199.11 0.00 76.72 126.42 0.00 0.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MAX 0.00 0.00 16.49 0.00 9.42 9.41 0.00 0.00
AVE 0.00 0.00 6.42 0.00 2.47 4.08 0.00 0.00

B. Static Water Levels
All City of Rialto wells are sounded each month, both active and inactive well sites.

Depth-to-water is measured from the well head to the static water surface. Increases in depth-to-water represent a decrease in static water level.

Well Levels
Well
Depth to
Pump
Historical
Maximum Depth to
Water Mar Apr May Jun Jul Aug Oct Nov Dec Jan Feb Mar
Chino #1 (X) 580' 429' 414' 413' 413' 413' 411' 410' 410' 410' 411’ 411’ 411’ 410' Chino #2 493' 369' 338' 335' 337' 334' 334' 333' 331' 333' 334’ 334’ 321’ 321' City #1 260' 392' 122' 119' 117' 119' 121' 120' 120' 122' 122’ 117’ 121’ 125' City #2 500' 402' 130' 128' 122' 129' 131' 125' 126' 126' 126’ 128’ 130’ 410' City #3 (X) 525' 505' 416' 416' 414' 417' 418' 418' 417' 417’' 417’ 417’ 420’ 357' City #4A 528' 406' 375' 373' 362' 367' 370' 366' 360' 359' 363’ 362’ 362’ 314' 60 7

City #5 (X) 385' 364' 318' 318' 316' 316' 316' 316' 317' 318' 319’ 317’ 317’ 564' Rialto #1 (X) 650' 588' 569' 565' 563' 564' 565' 562' 563' 566' 566’ 565’ 566’ 496' Rialto #2 (X) 550' 502' 495' 502' 496' 498' 498' 497' 496' 494' 496’ 495’ 496’ 469' Rialto #3 569' 478' 472' 472' 470' 470' 472' 471' 471' 474' 474’ 474’ 475’ 410' Rialto #4 (X) 450' 418' 416' 415' 415' 414' 413' 414' 413' 412' 412’ 412’ 411’ 383' Rialto #5 560' 387' 384' 386' 386' 387' 387' 387' 386' 386' 386’ 386’ 385’ 481' Rialto #7 (X) 362' 359' 353' 356' 354' 356' 357' 357' 357' 359’ 359’ 359’ 482' Miro #3 563' 492' 484' 483' 483' 481' 480' 479' 480' 480' 478’ 481’ 480’ 472' EW-1 650' 475' 475' 474' 475' 460' 471' 467' 480' 477’ 478’ 479’ 357'

(X) = In-Active Well

II. REGULATORY
All State of California and public health agency regulatory requirements were met, Regulatory Submittals
• Monthly Summary of Distribution System Coliform Monitoring • NPDES Discharge Letter
• Conservation SAFER Report

Sample Test Result Standards
Type of Sampling Units of Measure Detectable Limit for Reporting Maximum Contaminant Level Total Coliform A -- --
E. Coli A -- --
Nitrate as N mg/L 0.20 10
Perchlorate (CLO4) μg/L 1.0 6.0
Total Dissolved Solids mg/L -- 500
61 8

P= Present A= Absent mg/L = parts per million μg/L = parts per billion

Sample Date: 3/11/26 Sample Site Location Results
Type of Sampling Chino 2 City 2 City 4A Rialto 3 Rialto 5 Miro 3 EW-1 BLF Cactus BLF 6-9 OPRTP
Total Coliform A A A A A A A A A A
E. Coli A A A A A A A A A A
Nitrate as N 3.3 2.5 5.8
Perchlorate (CLO4) <1.0* 4.9* <1.0 7.3* 110*
Total Dissolved
Solids 230 210 300 250 230 210 240 330 320 200

*Sample is from the well head so it is before disinfection & treatment. Treatment is performed before it goes into the distribution system. Water going into the distribution system is <1.0 (non- detect).

A. Sample Site Location Results
Rialto Distribution Sample Results
March 2026
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 1 -
3/04/26 mg/l P/A P/A Color Units TON NTU
335 W. Rialto 1 A A <3.0 1 0.39
1228 W. Merrill 0.9 A A <3.0 1 0.17
256 N. Fillmore 0.9 A A <3.0 1 <0.10
62 9

987 W. Grove 1 A A <3.0 1 0.25
978 N. Driftwood 1 A A <3.0 1 <0.10
1451 N. Linden 1 A A <3.0 1 <0.10
469 W. Jackson 1.3 A A <3.0 1 0.18
935 E. Mariposa 1.1 A A <3.0 1 <0.10
1000 N. Joyce 1.1 A A <3.0 1 <0.10
766 N. Chestnut 1.2 A A <3.0 1 0.15
149 W. Victoria 1 A A <3.0 1 <0.10
313 E. McKinley 1.1 A A <3.0 1 0.32
609 E. South 1.1 A A <3.0 1 <0.10
273 E. Alru 1.1 A A <3.0 1 0.36
1161 S. Lilac 1.2 A A <3.0 1 0.27
101 E. Valley 1.1 A A <3.0 1 <0.10
CYCLE 2 -
3/10/26 mg/l P/A P/A Color Units TON NTU
210 N. Park 1.1 A A
101 S. Larch 1.1 A A
320 N. Wisteria 1.4 A A
861 W. Grove 1.2 A A
1168 N. Glenwood 1.3 A A
1320 N. Fitzgerald 1.1 A A
860 N. Willow 1.3 A A
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 2 CONT.
- 3/10/26 mg/l P/A P/A Color Units TON NTU
209 E. Cornell 1.4 A A
63 10

643 E. Margarita 1.3 A A
1170 N. Terrace
Rd. 1.1 A A
681 E. Erwin 1.2 A A
402 E. Merrill 1.2 A A
261 W. Wilson 1 A A
532 S. Iris 1.4 A A
281 W. Hawthorne 1.2 A A
379 W. Valley 1.2 A A

CYCLE 3 -
3/17/26 mg/l P/A P/A Color Units TON NTU
236 N Willow 1.1 A A
775 E. Foothill 1.1 A A
878 N. Primrose 1.2 A A
369 E. Van
Koevering 1.1 A A
274 W. Valencia 1.2 A A
1566 N. Fillmore 1.1 A A
932 N. Idyllwild 1.2 A A
644 N. Smoketree 0.9 A A
605 W. Rosewood 1.1 A A
1189 W. Second 1.1 A A
775 W. Rialto 1.1 A A
211 E. Wilson 1 A A
595 E. Huff 1 A A
64 11

Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 3 CONT.
- 3/17/26 mg/l P/A P/A Color Units TON NTU
1005 S. Riverside 1.2 A A
794 S. Verde 1.3 A A
1055 W.

Bloomington 1.4 A A
CYCLE 4 -
3/25/26 mg/l P/A P/A Color Units TON NTU
375 S. Cactus 1.8 A A
101 S. Linden 1.6 A A
234 N. Larch 1.2 A A
575 N. Driftwood 1.2 A A

1355 W. Shamrock 1.2 A A

992 N. Yucca 1.2 A A
481 W. Cornell 1.2 A A
158. E. Shamrock 1.2 A A

749 E. Holly 1.2 A A
545 E. Victoria 1.5 A A
200 N. Sycamore 1.3 A A

407 E. Allen 1.2 A A
399 E. Montrose 1.2 A A

856 S. Orange 1.3 A A
911 S. Cactus 1.2 A A
220 W. Valley 1.2 A A

65 12

B. Violations
No violations were received during this reporting period.

C. Source Water Total Dissolved Solids (TDS)
Veolia has a goal of maintaining an acceptable blended TDS level between all its sources. This goal is achieved by shifting production to or from the lowest TDS wells or purchasing low TDS water while adhering to the overall water supply strategy and meeting system demands. The TDS was on average 257 mg/L for the month of March as compared to 267 mg/L in February. The TDS levels are below the secondary maximum contaminant level requirements.

III. HEALTH AND SAFETY
A. Monthly Safety Program Overview
Category Monthly Statistic
Safety Training Topics LSR Q3
LSR Q4
Lost Time Incidents, count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 3
Vehicle Incidents, count 0
*A lost time incident has not occurred in the past 4370 days.

IV. CHEMICAL USE
Sodium hypochlorite is the only chemical added to the water system. A total of 2888 gallons of sodium hypochlorite was used in March as compared to 2082 gallons used in February.
66 13

V. ELECTRICAL USE
Southern California Edison (SCE) data for March 2026. We will provide the data as it is received, thus will include yearly usage received to date.

SCE kWh
Year Month
Billed
Usage
2025 February 294,421
2025 March 223,709
2025 April 428,976
2025 May 505,764
2024 June 575,467
2025 July 842,561
2025 August 669,021
2025 September 752,171
2025 October 654,454
.2025 November 734,743
2025 December 647,384
2026 January 592,795
2026 February 668,944
2026 March 601,554
VI. WATER QUALITY COMPLAINTS
No complaints were received during this reporting period.

67 14

VII. OPERATIONS UPDATE
The overall operational strategy is to meet the daily water demand. The City of Rialto water system has six operational wells, one of which is owned by the County of San Bernardino and operated by Veolia; Oliver P. Roemer Treatment Plant (OPRTP), which is jointly owned by the City (25%) and West Valley Water District (WVWD); purchased water through the Baseline Feeder (BLF) system from San Bernardino Valley Municipal Water District (SBVMWD); and, if required to meet demand, additional water can be supplied by the City of San Bernardino (CSB) through the BLF for emergency supply only with no guarantee of actual delivery. Water produced from City Well 4A discharges into the BLF and its production is included in deliveries from that shared transmission line whe n City Well 4A is in service.

The overall pumping strategy is based on adjudicated rights, well availability, remediation requirements, and quality of source, cost to operate, and varying weather conditions. TDS effluent concentrations for the City of Ria lto WWTP are taken into consideration when operating the facilities and water sources.

A. Operational Wells
City well #2 will be out of service for 4 weeks to replace the upper pump column bearing; will return into service by March 2026. City well #2 returned to service on March 10th
Valve Activity
On the basis of information collected in 2019, Veolia now has a baseline assessment of all valves and has initiated a new cycle of valve exercising. Five valves were exercised in the month of March.

Valve Turning Progress
Valves
Turned
2020 530
2021 340
2022 463
2023 750
2024 379
2025 338
2026 249
68 15

B. Hydrant Flushing
There are 63 hydrant/dead ends that are flushed annually to maintain water quality.

All annual flushing will be completed by December 2026.

Hydrant/Dead End Flushing
Progress
2026
January 0
February 0
March 0
April 0
May 0
June 0
July 0
August 0
September 0
October 0
November 0
December 0
Total 0
Progress % (100)
C. Sanitary Survey
DDW performed field site visits on May 22 and August 22, 2024. The results of the sanitary survey were received on September 19, 2024. All minor deficiencies have been corrected and submitted to DDW.

VIII. ASSET MANAGEMENT
The following work orders were completed by Water production staff for the month of March:
• Preventive Maintenance –268
• Corrective Maintenance –0
• Predictive Maintenance –0
– 268 PMs planned for April 2026
69 16

A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues
The following work orders were completed by water distribution staff for the month of March:

Main Line: 2 Service Line:5 Hydrant Replacements:1
Angle Meter Stops:5 Meter Box & Lid
Replacements:3
Meter Leaks/
Replacements:

B. Customer Call Outs, Hydrant hits
Customer Call Outs:13 Meter Leaks:5 Requests for Water to be turned on/off:12
Leaks in the street:3 Leaking Fire Hydrant:3 Hit/shed hydrant: 1

C. Major Equipment and/or Machinery Outages
EW-1 Well is out of service for repair, will be back in service by first week in April

70 17

IX. RAINFALL TOTALS

CITY OF RIALTO

RAINFALL FOR PAST FIVE YEARS

YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC TOTAL 2021 2.55 0.05 1.13 0.00 0.00 0.00 0.53 0.00 0.00 0.55 0.00 7.27 12.08 2022 0.00 0.00 0.77 0.45 0.03 0.00 0.00 0.00 0.24 0.38 2.15 1.80 5.82 2023 5.06 4.14 7.73 0.20 0.59 0.00 0.00 2.62 0.00 0.09 0.60 1.18 22.21 2024 1.00 10.38 1.87 0.53 0.34 0.00 0.00 0.00 0.00 0.00 0.45 0.00 14.57 2025 0.21 3.68 2.47 0.49 0.29 0.00 0.00 0.00 0.12 0.93 4.05 2.95 15.19 RAINFALL AMOUNT FOR THE YEAR OF 2025 = 15.19 inches
AVG. ANNUAL RAINFALL FOR LAST FIVE YEARS = 13.97 inches AVG. RAINFALL FOR SAN BERNARDINO COUNTY FOR THE LAST 100 YEARS = 16.07 inches 2026 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Totals 2.59 3.36 0.00 5.95

71 18

Weather
Date Clear P.Cloudy Cloudy Notes Rainfall (inch)
3/1/26 X
3/2/26 X
3/3/26
3/4/26 X
3/5/26 X
3/6/26 X
3/7/26 X
3/8/26 X
3/9/26 X
3/10/26 X
3/11/26 X
3/12/26 X
3/13/26 X
3/14/26 X
3/15/26 X
3/16/26 X
3/17/26 X
3/18/26 X
3/19/26 X
3/20/26 X
3/21/26 X
3/22/26 X
3/23/26 X
3/24/26 X
3/25/26 X
3/26/26 X
72 19

3/27/26 X
3/28/26 X
3/29/26 X
3/30/26 X
3/31/26 X

73 RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

Reporting Period:

March 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
74 RIALTO WASTEWATER

OPERATIONS AND MAINTENANCE REPORT

Contents

EXECUTIVE SUMMARY

1. Collection System / Customer Service Log
a. Collection System Activities
b. S.S.O. dates
c. Customer Service Call Outs

2. Wastewater Treatment Plant - Monthly Overview
a. Significant events during the month

3. Treatment Facility Performance / Laboratory Activities a. See attached Monthly Performance Summary
b. Summary of Notices and Laboratory Tests / Reports filed with government agencies c. Effluent Specifications Exceedance Discussion

4. Monthly Safety Program Overview

5. Biosolids, Chemicals, and Utilities
a. Monthly Biosolids Production
b. Monthly Chemical Consumption
c. Monthly Utilities Consumption

6. Odor Complaints / Actions Taken

7. Major Equipment and/or Machinery Outages

8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
b. Government agency environmental, health, or safety tests/monitoring c. Government agency notice of violation received
d. Government agency monitoring
e. Other matters of concern

9. Complaint Logs

TABLES

● Treatment Facility – Monthly Performance Summary
● Collection System- Monthly Pipe Cleaned
75 RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

EXECUTIVE SUMMARY

Highlights of this month’s Wastewater O&M report include the following:

● The treatment plant performed well and met all compliance parameters. ● There were four residential call-outs for sewer collection issues.

1. Collection System/Customer Service Log

a. Collections group activities this month:

Category Current Month
Statistics
Prior Month Statistics 2026 Year to Date
Statistics
Sanitary sewers are cleaned using the
conventional method, including feet, which
includes “Hot spot cleaning.”
32,376 15,900 74,723
Sanitary sewers assessed using the SL-RAT
method, feet 0 0 0
CCTV Inspection, miles (26 is the annual goal)* 3.25 2.84 9.27 Manhole Inspections 4 0 4
USA Dig Alert Markings, count 27 16 67
Residential call-outs 2 1 7
Sanitary sewer overflows 0 0 0

b. S.S.O. dates:
c. Customer Service Call Outs – See Item 9 for details.

2. Wastewater Treatment Plant – Monthly Overview
● NPDES discharge compliance parameters were achieved.

a. Significant events during the month were: None.

3. Treatment Facility Performance/Laboratory Activities

a. See the attached Table 1, Monthly Performance Summary.

b. Summary of Notices and Laboratory Tests/Reports filed with government agencies.

The monthly submittal of State/Federal discharge monitoring reports was completed promptly.

c. Effluent specification exceedance discussion
See Section 2 above. N/A

4. Monthly Safety Program Overview

Category Monthly Statistic
Safety Training Topics 4
Lost Time Incidents count* 0
76 Recordable Incidents, count 0
Near Miss Incidents, count 0
Vehicle Incidents, count 0

*A lost time incident has not occurred since 9-3-2020, totaling 2,035 days.

5. Biosolids, Chemicals, and Utilities

a. Monthly Biosolids Production

Biosolids Current Month
Statistics
Prior Month Statistics 2026 Year-to-Date
Statistics
Wet Tons Produced 1,248.67 1,019.35 3,944.39

b. Monthly Chemical Consumption

Chemical Current Month
Gallons Used
Prior Month
Gallons Used
Sodium Hypochlorite, Tertiary Disinfection 28,925 32,890 Sodium Bisulfite, Discharge Dechlorination 11,525 11,231 Ferrous Chloride, Digester Gas Conditioning 4,156 3,743 Polymer, Gravity Belt Thickener 364 310
Polymer, Belt Filter Press 714 718
Alum, Tertiary Filters 0 0

c. Monthly Utilities Consumption

Utility Current Month
Statistics
Prior Month Statistics
Electricity WWTP, KWH ** 413040
Electricity Lilac LS, KWH 304 948
Electricity Sycamore LS, KWH 493 500
Electricity Ayala LS, KWH 5528 6191
Electricity Agua Mansa LS, KWH ** 2260
Electricity Cactus LS, KWH 1140 1752
Electricity Ramrod LS, KWH ** 564
Frisbee Park LS, KWH 717 725
El Rancho Verde LS, KWH ** 2236
Natural Gas WWTP, Therms 6493 6394
* LS is in bypass mode, pending CIP completion
** SCE has not updated this account.

6. Odor Complaints Received/Actions Taken
Complaint at 119 E. Foothill Blvd. Staff responded within thirty minutes. No odors observed. Gravity sewer line was inspected and flowing freely, no grease or abnormal odors present. The sewer line was also inspected with CCTV. No odor sources found.

Complaint at 1410 W Foothill Blvd. Staff responded no odors observed, the sewer line was free flowing.

7. Major Equipment and/or Machinery Outages
● Sludge Holding Tank
● Aeration Basin #3 is currently offline.
● Chlorine Contact Tanks #1 and #2 are offline

77 8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
None

b. Government agency environmental, health, or safety tests/monitoring Permit testing was completed for this month

c. Government agency notices of violation received
No notices were received.

d. Government agency monitoring
Routine monitoring reports were submitted.

e. Other matters of concern
None

9. Customer Service Callout Details Log

Date Address Comments Personnel Manhole To
Manhole
3/11/2026 505 S Arrowhead The resident called with a complaint of a sewer backup.

Upon inspection, the technician informed the resident
that the plumber needs to snake the lateral all the way to the main line. The resident called back to report their lateral was cleared.

BVO
3/18/2026 1410 Foothill Ave A call reporting a sewer odor in front of Food 4 Less.

There are no sewer mains near Food 4 Less, the main line on Cedar Ave and Foothill Ave checked as a courtesy—no
smell detected.

78 Table 1 Summary

79 80

81 Table 2 Summary

82 83

Table 3 Summary

84 85

Monthly Sewer Line Cleaned

Water SubcommitteeJune 25, 2026

Water Subcommittee
June 25, 2026