Monthly Operations Report
June 2025
Reporting period April 2025
RIALTO
CUSTOMER SERVICE & REVENUE
MONTHLY OPERATIONS REPORT
Reporting Period:
April 2025
Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
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 ................................................................................................................................ 4 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
3 I. CUSTOMER SERVICE SUMMARY
During this reporting month, the Customer Service team provided call service level of
89.2%. Out of 1,287 inbound calls answered 1,148 were answered within the first 30 seconds.
Water consumption has increased by 4.6% when compared against previous month. When compared against last year, consumption has increased by 16.4%.
Sewer revenue has decreased by less than 1.0% compared to the prior month and increased by 6.0% from last year.
II. CALL CENTER PERFORMANCE
During this reporting month, service level was 89.2% with 1,148 out of 1,287 being answered within the first 30 seconds. Overall average wait time was twenty-six (26) seconds.
III. AUTOMATED SERVICES
About 22,694 or 54.7% of the rate payers have created log-ins to access their accounts online. Of these customers, with online access, 48.0% have chosen the e-bill option. This e-bill participation is 6.4% increase from April of the prior year.
83.0% 80.0% 77.3%
82.3% 81.4%
87.6% 91.0% 89.5% 86.8% 89.6% 88.8% 91.8% 89.2%
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
1,800
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Answer in 30 Sec 1,343 1,327 1,267 1,275 1,146 1,030 1,193 982 1,100 1,091 1,153 1,183 1,148 Calls Answered 1,617 1,659 1,639 1,549 1,406 1,176 1,310 1,096 1,267 1,218 1,308 1,288 1,287 Service Level 83.0% 80.0% 77.3% 82.3% 81.4% 87.6% 91.0% 89.5% 86.8% 89.6% 88.8% 91.8% 89.2% Call Center Performance
Answer in 30 Sec Calls Answered Service Level
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Number of Bills 22,369 22,331 22,372 22,410 22,425 22,470 22,541 22,571 22,575 22,587 22,604 22,657 22,694 Number of Bill Adjustments (during billing) 12 16 10 11 9 5 11 9 29 17 10 29 25 Automated Over the Phone Payments 2,592 2,382 2,058 2,250 2,310 2,050 2,483 2,092 2,436 2,509 2,040 2,509 2,454 Online Payment 9,888 9,126 7,457 9,828 9,302 7,538 9,302 7,804 10,320 9,747 7,676 9,912 9,798 E-bill Participants 5,610 5,654 5,683 5,731 5,770 5,814 5,855 5,922 5,959 5,997 6,031 6,069 5,969 Auto Pay Participants (New Portal) 4,082 4,129 4,165 4,221 4,273 4,278 4,305 4,343 4,367 4,420 4,467 4,536 4,554 PayNearMe 118 111 88 114 118 92 95 93 95 108 73 99 97
4 IV. CONSUMPTION & BILLING
A. Consumption
Water consumption has increased by 4.6% when compared against previous month. When compared against last year, consumption has increased by 16.4%.
B. Billing
A total of 22,694 bills were mailed or sent out electronically in April. Billing accuracy was
99.9% with twenty-five (25) requiring adjustments after bill generation.
January Feburary March April May June July August September October November December 2023 Water 228,173 155,716 166,787 182,460 204,254 261,868 356,836 339,778 378,728 282,726 276,127 306,012 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
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 2023 Sewer 58,591 49,302 49,159 63,252 52,718 57,019 65,743 60,617 68,539 65,798 63,762 66,131 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
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)
5 V. REVENUE & AGING
A. Revenue
Water revenue has increased 2.4% when compared against the prior month and increased
23.1% when compared against previous year. Sewer revenue has decreased by less than 1% compared to the prior month and increased by 6.0% from last year. Increase of revenue in 2025 versus 2024 is due to rate modifications in January.
(Please consider the scale of the graph as doubled height does not mean double the amount)
January Feburary March April May June July August September October November December 2023 Water Sales $962,367.00 $787,207.00 $813,577.00 $841,086.00 $901,604.00 $1,044,220. $1,266,316. $1,227,744. $1,331,376. $1,098,822. $1,081,741. $1,155,329. 2024 Water Sales $912,498.00 $852,016.00 $881,079.00 $864,955.00 $930,910.00 $1,229,951. $1,194,468. $1,291,723. $1,510,717. $1,170,740. $1,297,360. $1,038,617. 2025 Water Sales $1,059,329.0 $1,249,252.0 $1,039,421.0 $1,064,341.0 $-
$200,000.00
$400,000.00
$600,000.00
$800,000.00
$1,000,000.00
$1,200,000.00
$1,400,000.00
$1,600,000.00
Dollars ($)
Annual Water Sales Comparison
January Feburary March April May June July August September October November December 2023 Sewer Sales $2,184,085.0 $2,111,381.0 $2,110,125.0 $2,219,973.0 $2,142,863.0 $2,172,890.0 $2,243,741.0 $2,202,859.0 $2,264,521.0 $2,243,821.0 $2,233,990.0 $2,260,801.0 2024 Sewer Sales $2,158,668.0 $2,147,783.0 $2,229,038.0 $2,190,195.0 $2,186,025.0 $2,260,077.0 $2,264,418.0 $2,288,863.0 $2,385,936.0 $2,295,859.0 $2,344,329.0 $2,264,375.0 2025 Sewer Sales $2,227,202.0 $2,415,779.0 $2,331,147.0 $2,322,513.0 $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
$2,450,000.00
Dollars ($)
Annual Sewer Sales
6 B. Aging
The total aging balance has decreased by 4.4%, see first table below. For balances >30-days only, water has decreased 24.9% and wastewater has increased by 11.2%.
C. Bad Debt
Eighteen (18) accounts were sent to collections for a total amount of $30,467.06.
$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
$3,500,000.00
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Aging Balances in Dollars ($)
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Water $1,211,293.3 $930,266.74 $1,300,485.7 $1,346,722.0 $1,087,642.2 $1,343,665.0 $1,143,400.0 $1,624,355.3 $1,354,212.1 $1,332,847.1 $1,419,698.0 $1,292,967.0 $1,111,102.8 Sewer $3,264,892.1 $2,773,989.3 $3,162,401.4 $2,151,944.5 $1,998,417.9 $2,352,406.8 $2,261,553.6 $3,013,219.8 $2,776,221.3 $2,648,132.6 $3,315,495.9 $3,196,836.5 $3,180,111.5 Historical Aging Totals
Water and Sewer
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Thousands
Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 Water $578,885 $372,213 $397,106 $462,301 $336,164 $306,205 $385,519 $470,281 $570,310 $601,520 $396,891 $478,675 $359,409 Sewer $1,691,203 $1,393,952 $1,436,216 $496,224 $610,308 $638,310 $759,956 $938,055 $1,096,563 $1,180,220 $1,365,283 $1,421,880 $1,580,609 Aging Balances Over 30 Days Water and Sewer
(April 2021 forward contains both consumption and meter charges)
7 VI. SERVICE ORDERS
283 service orders were initiated by the customer service team during the reporting month. Of this total, 65 service orders or 23.0% were due to occupant changes. 150 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
Rate changes and UUT exemptions took place starting with the February 2025 bills.
Number of calls related to “rate increase” has been minimal and decreasing further. Most of these calls were from customer who had same total monthly amounts from one month to another.
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 revenue collected in April 2025 is $ 4,142,000 whereas Non-Rate Revenue is $ 430,000; Utility Revenue is $3,642,000 and Tax / Ambulance Revenue at $70,000.
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 April 2025 and April 2024 are $64,000 and $251,000 respectively. Ambulance Revenue is also collected on behalf of the City of Rialto totaling $5,000 in April 2025 and $6,000 in April 2024.
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 (Bloo mington).
This housing development project generates extraterritorial sewer service revenue of $20,000 per month.
8 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, which has two leases at $2,073 and $1,500. 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 April 23, 2021. This agreement pertains to the use of its interest in the SARI Line and discharge 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 monies from the various developments, which is then distributed to RWS. There was no DIF payment receiv ed in April of 2024.
E. Rialto Basin Water Rights and Leasing
A Standby Water Lease Agreement between Fontana Union Water Company and City of Rialto is in effect. For the Water 2023-2024 Water Year, RWS received a payment from San Bernardino County the amount of $332,624 for Standby Charges and Production Charge.
In addition, the County is also billed annually for Rialto Well #3’s summertime electricity costs based on peak usage.
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 car d 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 processe d.
Payment Method Description Transaction Count APRIL 2025 % Carrier Deposits Cash deposits prepared per day for transport to US Bank. 22 $ 134,742 3.35% Remote Deposits Scanned batches of checks payments made at the customer service counter 22 802,083 19.92% EBOX Batches of electronic customer payments posted to
customer accounts at US Bank. 22 316,850 7.87%
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 13,208 1,939,784 48.18% Lockbox Deposits Batches of customer payments mailed in to US Bank's lockbox 22 821,238 20.40% Pay Near Me Cash payment service that allows customers to pay at a local 7-Eleven, CVS, Walmart or Family Dollar stores. 95 11,624 0.29% Total Revenue per Bank $ 4,026,321 100.00% Recon to RUA Recap:
Adj detailed in RUA 115,677
Prior mo. Correction
RUA increase in Cash $ 4,141,998
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 2024 Aug 2024 Sep 2024 Oct 2024 Nov 2024 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 Total % Carrier Deposits 122,310$ 116,600$ 111,287$ 121,951$ 89,627$ 122,268$ 120,688$ 117,076$ 137,735$ 134,742$ 1,194,284$ 3.02% Remote Deposits 227,143 953,011 373,642 394,629 613,264 685,915 291,981 1,113,745 471,688 802,083 5,927,101$ 14.98% EBOX 334,259 346,067 289,347 349,088 288,522 322,671 332,865 252,149 312,881 316,850 3,144,699$ 7.95% Paymentus, IVR, Credit Cards 1,827,817 1,855,221 1,688,345 2,034,573 1,499,559 2,049,055 2,011,139 1,553,121 2,179,266 1,939,784 18,637,880$ 47.10% Lockbox Deposits 1,169,619 1,273,243 1,089,604 1,285,860 903,561 1,175,827 1,098,091 706,631 1,025,831 821,238 10,549,505$ 26.66% Pay Near Me 14,561 14,530 10,989 11,968 10,491 12,923 12,774 7,957 12,063 11,624 119,880$ 0.30% Total Revenue to Bank 3,695,709$ 4,558,672$ 3,563,214$ 4,198,069$ 3,405,024$ 4,368,659$ 3,867,538$ 3,750,679$ 4,139,464$ 4,026,321$ 39,573,349$ 100.00% NSF (7,962) (4,946) (8,970) (8,951) (21,124) (20,764) (9,479) (10,322) (8,496) (9,457) (110,471)$ Net deposits 3,687,747$ 4,553,726$ 3,554,244$ 4,189,118$ 3,383,900$ 4,347,895$ 3,858,059$ 3,740,357$ 4,130,968$ 4,016,864$ 39,462,878$ April 2025 April 2024 Variance
UUT Water 23,485$ 71,925$ (48,441)$
UUT Sewer 40,817 179,571 (138,754)
Ambulance 5,733 6,171 (438)
Total 70,035$ 257,667$ (187,632)$
April 2025 April 2024 Variance
Non-Rate / Extra Territorial
Revenue 430,379$ 279,232$ 151,147$
Utility Revenue 3,641,584$ 3,439,109$ 202,475
Total 4,071,963$ 3,718,341$ 353,622$
11 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date
J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison
Jul 2024 Aug 2024 Sept 2024 Oct 2024 Nov 2024 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 Total Non-Rate Revenue
Cell Tower Rent,Llease 5,647 19,985 21,506 66,161 55,391 9,235 12,824 29,957 55,985 66,904 343,595 Interest Income 19,290 9,559 - - - - - - - - 28,849
NRR-FOG - - - - - - - - - - - Municipal Water Sales - - - - 332,624 - - - - - 332,624 Extra Terr- Sewage 31,463 252,123 161,340 185,039 136,360 128,586 145,544 225,208 159,667 346,473 1,771,803 Abatement of Expenses - - - - - - - - - - - Water Meter Lost/Damaged/Repl 1,419 710 2,129 5,171 - - 4,924 492 36,930 10,601 62,376 Misc Fees - New Occ., Same Day Svc 5,877 4,453 4,939 5,629 3,067 5,525 5,945 6,069 6,060 6,400 53,964 Miscellaneous Revenue - Sewer - - - - - - - - - - - NSF - 342 - 152 35 - 30 - - - 559 Total Non-Rate Revenue 63,696$ 287,172$ 189,914$ 262,152$ 527,477$ 143,346$ 169,267$ 261,726$ 258,642$ 430,379$ 2,593,771 Utility Revenue -
Water Penalty 3,154 15,321 10,183 5,903 2,602 720 101 6,016 16,300 23,990 84,290 Sewer Penalty 5,200 33,061 18,283 7,639 3,313 1,435 700 11,411 33,426 40,185 154,653 Turf Removal, Hi-Eff Rebate (1,000) (100) - - - - - - - (1,000) (2,100) Water Deposits Billed 17,289 8,629 9,906 8,629 8,686 10,057 11,411 11,856 20,052 16,614 123,129 Hydrant Deposits 574 - - - 420 282 - - 702 - 1,978 Sewer Deposits Paid - - - - - - - - - - - Sewer Deposits Billed 11,760 12,823 9,518 10,900 15,201 8,822 11,737 8,959 18,436 10,612 118,768 Water 1,171,886 1,540,256 1,194,449 1,386,681 884,906 1,229,369 1,086,436 1,126,085 1,161,792 1,223,012 12,004,872 Sewer 2,327,246 2,418,456 1,959,890 2,448,917 1,669,263 2,454,711 2,380,281 1,745,679 2,469,796 2,345,182 22,219,421 Unapplied Credits (101,077) (54,176) (140,916) (81,949) (69,090) (35,829) (43,709) (83,121) (42,584) (20,663) (673,114) Bad Debt Sewer 12,029 9,909 - - - - 4,560 - - - 26,498 Bad Debt Water - - - - - - - - - - - Tax Roll Sewer 15,596 2,790 - - - 22,950 399,116 474,784 8,462 3,652 927,350 Collection Agency - Water - - - - - - - - - - - Collection Agency - Sewer - - - - - - - - - - - Collection Agency - Misc Water - - - - - - - - - - - Total Utility Revenue 3,462,657$ 3,986,969$ 3,061,313$ 3,786,720$ 2,515,301$ 3,692,517$ 3,850,633$ 3,301,669$ 3,686,382$ 3,641,584$ 34,985,745$ Total Non-Rate + Utility Rev. 3,526,353 4,274,141 3,251,227 4,048,872 3,042,778 3,835,863 4,019,900 3,563,395 3,945,024 4,071,963 37,579,516 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
April 2025 4,141,998 9,457 2,773,017 1,359,524 4,141,998 (115,677) 4,026,321 April 2024 3,976,008 15,510 2,762,751 1,197,747 3,976,008 (15,510) 3,960,498
12 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging
AT&T makes annual payment of one cell tower rent and monthly dues on the other. The customer is current with its payments.
Social Science Service (Cedar House) balance reflects current service fees.
City of Fontana is current with its obligations.
Colton Unified School District is current with its obligations.
County of San Bernardino is current with its obligations.
Rialto Bioenergy Solutions RWS shows a current Invoice balance in April . Subsequently, received $10,750 in May.
Vertical Bridge Holdco, LLC and Sprint: Vertical Bridge and Sprint have been contacted for open Invoices as well.
Name
Total as of
4/30/2025 Current 31 to 60 days 61 to 90 days >90 days
AT&T - Easton -$ - - - - Cedar House - -
CITY OF FONTANA - - - - - Colton Unified School District - - - - - County of San Bernardino-CSA 70 BL - - - - - Rialto BioEnergy Facilities 21,500 10,750 10,750 - - Sprint-Nextel 9,331 - - - 9,331 San Bernardino Co Waste System Div. - - - - - SB Valley Mun Water District - - - - - Vertical Bridge Holdco, LLC (CIG) 7,544 2,830 - - 4,714 Grand Total 38,375$ 13,580$ 10,750$ -$ 14,045$ 1 RIALTO WATER
MONTHLY OPERATIONS REPORT
Reporting Period:
April 2025
Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
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 10
C. Violations 12
D. Source Water Total Dissolved Solids (TDS) 12
III. HEALTH AND SAFETY 12
A. Monthly Safety Program Overview 12
IV. CHEMICAL USE 12
V. ELECTRICAL USE 13
VI. WATER QUALITY COMPLAINTS 13
VII. OPERATIONS UPDATE 13
A. Operational Wells 14
B. Valve Activity 14
C. Hydrant Flushing 14
D. Sanitary Survey 15
VIII. ASSET MANAGEMENT 15
A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues 15 B. Major Equipment and/or Machinery Outages 15
IX. RAINFALL TOTALS 16
3 RIALTO WATER
MONTHLY OPERATIONS REPORT
I. EXECUTIVE SUMMARY
Highlights of this month’s Water O&M report include the following:
• The water distribution network achieved compliance with all permit requirements.
• No sample anomalies that require secondary sampling.
• No significant issues with water availability. The purchasing of water remained consistent and daily equalization tanks levels remained at anticipated volume for customer availability.
• The Preventative Maintenance Program, as well as Valve Exercising, continues to identify areas of focus for our Routine Repair and Replacement.
4 A. Water Production Totals
Total water delivered into the Rialto system this month was 729.36 acre-feet. 631.94 acre-feet was delivered into the system from the groundwater wells (City 4A production is included in the well total). - 25.27 acre-feet was delivered via the BLF transmission system (City 4A production has been deducted). 122.69 acre-feet came from the OPRTP.
DATE Chino 2 City 2 Rialto 3 Rialto 5 Miro 3 EW-1 City 4A BOOSTER 6-9 Cactus 1 OPRTP 2 TOTAL3 4/1/25 4.82 0.00 0.00 0.00 5.16 6.10 4.70 4.34 0.04 0.27 20.73 4/2/25 5.23 0.00 0.00 0.00 4.27 5.55 2.89 2.41 0.03 5.91 23.39 4/3/25 5.46 0.00 0.00 0.00 5.33 5.77 0.00 0.00 0.04 3.94 20.54 4/4/25 7.71 0.00 0.00 0.00 4.41 5.55 0.00 0.00 0.75 4.46 22.88 4/5/25 2.98 0.00 0.00 0.00 5.07 5.74 2.33 0.02 2.78 3.59 20.18 4/6/25 5.28 0.00 0.00 0.00 5.14 5.97 1.33 0.00 2.23 5.55 24.17 4/7/25 5.51 0.00 0.00 0.00 4.75 5.82 5.68 7.76 0.05 4.81 28.70 4/8/25 5.67 0.00 0.00 0.00 5.05 5.95 5.51 3.58 0.06 3.50 23.81 4/9/25 4.38 0.33 0.00 0.00 4.82 5.62 1.99 2.16 1.33 4.76 23.41 4/10/25 5.19 0.00 0.00 0.00 4.86 6.16 9.05 6.22 0.05 4.34 26.82 4/11/25 6.40 0.00 3.93 0.00 0.79 5.56 3.50 0.00 0.04 4.69 21.41 4/12/25 4.73 0.00 4.43 0.00 0.00 5.60 0.00 0.00 1.92 4.59 21.27 4/13/25 6.29 3.20 4.84 0.00 0.00 5.86 8.37 1.56 7.78 5.02 34.55 4/14/25 3.60 7.89 4.13 0.00 0.00 5.60 0.18 0.00 0.05 4.55 25.82 4/15/25 6.11 9.46 0.90 0.00 0.00 6.26 0.00 0.00 0.03 4.32 27.08 4/16/25 0.00 7.94 0.00 0.00 0.00 5.51 0.00 0.78 0.05 3.50 17.78 4/17/25 0.00 9.31 0.00 0.00 0.00 5.88 4.89 2.75 0.06 5.63 23.63 4/18/25 0.00 8.31 0.00 0.00 0.00 6.05 0.00 0.00 0.05 3.74 18.15 4/19/25 0.00 7.85 0.00 0.00 0.00 5.97 2.89 0.00 0.05 4.29 18.16 4/20/25 0.00 9.03 0.00 0.00 0.00 6.35 14.01 10.26 0.07 5.58 31.29 4/21/25 4.75 9.35 0.00 0.00 0.00 6.50 0.00 0.87 0.07 4.18 25.72 4/22/25 5.30 10.00 0.00 0.00 0.00 5.58 3.56 0.00 0.07 4.08 25.03 4/23/25 5.99 10.15 0.00 0.00 0.00 6.13 0.61 0.00 0.07 0.00 22.34 4/24/25 5.19 8.96 0.00 0.00 0.00 6.02 8.20 0.00 0.05 4.19 24.41 4/25/25 0.00 8.78 0.00 0.00 0.00 5.98 4.78 0.00 6.59 4.68 26.03 4/26/25 5.81 6.64 0.00 0.00 0.00 6.04 3.58 0.00 0.07 4.46 23.02 4/27/25 4.61 9.53 0.00 0.00 0.00 6.25 1.28 0.00 0.06 5.20 25.65 4/28/25 4.96 8.41 4.27 0.00 0.00 6.35 1.47 0.00 0.06 0.97 25.02 4/29/25 5.16 8.65 5.30 0.00 0.00 5.78 2.43 0.18 0.07 4.03 29.17 4/30/25 5.19 8.66 4.71 0.00 0.00 6.26 0.00 0.29 0.21 3.86 29.18 TOTAL 126.32 152.45 32.51 0.00 49.66 177.77 93.23 43.18 24.78 122.69 729.36 MIN 0.00 0.00 0.00 0.00 0.00 5.51 0.00 0.00 0.03 0.00 17.78 MAX 7.71 10.15 5.30 0.00 5.33 6.50 14.01 10.26 7.78 5.91 34.55 AVE 4.21 5.08 1.08 0.00 1.66 5.93 3.11 1.44 0.83 4.09 24.31 APRIL 2025 DAILY PRODUCTION TOTALS IN ACRE FEET
Delivered Via BLF
Purchased
1 Measured at point of connection at Cactus Reservoir site including production from City 4A. Amount may vary compared to billing. 2 Measured at point of connection at Cedar Reservoir site. Amount may vary as compared to billing. 3 City 4A is not included in total. It has been accounted for in the Purchased total. 5 APRIL 2025 DAILY BOOSTER TOTALS IN ACRE FEET
DATE
Booster
1 Booster 2 Booster 3 Booster 4 Booster 5 Booster 6-9 Booster 10 Booster 11 4/1/25 0.00 0.00 4.83 0.00 0.00 4.34 0.00 0.00
4/2/25 0.00 0.00 2.34 0.00 0.00 2.41 0.00 0.00
4/3/25 0.00 0.00 0.59 0.00 0.00 0.00 0.00 0.00
4/4/25 0.00 0.00 0.00 0.00 0.71 0.00 0.00 0.00
4/5/25 0.00 0.00 0.00 0.00 2.75 0.02 0.00 0.00
4/6/25 0.00 0.00 0.06 0.00 2.18 0.00 0.00 0.00
4/7/25 0.00 0.00 4.94 0.00 0.00 7.76 0.00 0.00
4/8/25 0.00 0.00 0.00 0.00 0.00 3.58 0.00 0.00
4/9/25 0.00 0.00 5.61 0.00 1.29 2.16 0.00 0.00
4/10/25 0.00 0.00 2.80 0.00 0.00 6.22 0.00 0.00
4/11/25 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00
4/12/25 0.00 0.00 0.00 0.00 1.89 0.00 0.00 0.00
4/13/25 0.00 0.00 2.37 0.00 7.70 1.56 0.00 0.00
4/14/25 0.00 0.00 4.53 0.00 0.00 0.00 0.00 0.00
4/15/25 0.00 0.00 5.61 0.00 0.00 0.00 0.00 0.00
4/16/25 0.00 0.00 3.96 0.00 0.00 0.78 0.00 0.00
4/17/25 0.00 0.00 7.71 0.00 0.00 2.75 0.00 0.00
4/18/25 0.00 0.00 7.93 0.00 0.00 0.00 0.00 0.00
4/19/25 0.00 0.00 3.38 0.00 0.00 0.00 0.00 0.00
4/20/25 0.00 0.00 9.84 0.00 0.00 10.26 0.00 0.00
4/21/25 0.00 0.00 8.19 0.00 0.00 0.87 0.00 0.00
4/22/25 0.00 0.00 8.05 0.00 0.00 0.00 0.00 0.00
4/23/25 0.00 0.00 9.88 0.00 0.00 0.00 0.00 0.00
4/24/25 0.00 0.00 8.44 0.00 0.00 0.00 0.00 0.00
4/25/25 0.00 0.00 1.61 0.00 6.52 0.00 0.00 0.00
4/26/25 0.00 0.00 8.25 0.00 0.00 0.00 0.00 0.00
4/27/25 0.00 0.00 7.72 0.00 0.00 0.00 0.00 0.00
4/28/25 0.00 0.00 8.41 0.00 0.00 0.00 0.00 0.00
4/29/25 0.00 0.00 8.12 0.00 0.00 0.18 0.00 0.00
4/30/25 0.00 0.00 3.48 0.10 0.21 0.29 0.00 0.00
TOTAL 0.00 0.00 138.66 0.10 23.25 43.18 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 9.88 0.10 7.70 10.26 0.00 0.00
AVE 0.00 0.00 4.62 0.00 0.78 1.44 0.00 0.00
6 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.
Depth to Water
Wells Depth to
Pump
Historical Maximum
Depth to Water May Jun Jul Aug Sept Oct Nov Dec Jan Feb Mar Apr Chino # 1 (580 ft) In-
active well 429' 411' 414' 414' 412' 411' 411' 411' 410' 412' 414' 414' 413' Chino # 2 (550 ft) 369' 354' 347' 352' 347' 347' 343' 340' 342' 341' 335' 338' 335' City # 1 (260 ft) 392' 158' 158' 151' 150' 247' 247' 251' 121' 126' 121' 122' 119' City # 2 (480 ft) 402' 164' 164' 164' 171' 210' 137' 139' 147' 146' 128' 130' 128' City # 3 (525 ft) Out
of Service 505' 423' 423' 418 417' 416' 416' 417' 414' 414' 415' 416' 416' City # 4A (528 ft) 406' 373' 374' 380' 379' 380' 380' 380' 381' 374' 377' 375' 373' City # 5 (385 ft) In-
active well 364' 339' 335' 333' 334' 332' 322' 320' 318' 318' 321' 318' 318' Rialto # 1 (650 ft) In-
active well 588' 569' 571' 571' 571' 571' 553' 552' 561' 555' 571' 569' 565' Rialto # 2 (550 ft) In-
active well 502' 500' 501' 500' 501' 502' 501' 501' 499' 501' 496' 495' 502' Rialto # 3 (509 ft) 478' 475' 474' 477' 477' 473' 476' 473' 472' 473' 473' 472' 472' Rialto # 4 (450 ft) In-
active well 418' 415' 415' 416' 415' 418' 418' 414' 413' 414' 415' 416' 415' Rialto # 5 (560 ft) 386' 386' 386' 386' 385' 384' 384' 384' 385' 385' 384' 384' 386' Rialto Well # 7 In-
active well 362' 362' 361' 361' 362' 362' 362' 361' 362' 360' 360' 359' 353' Miro # 3 (563 ft) 492' 488' 487' 489' 487' 485' 485' 484' 484' 484' 484' 484' 483' EW-1 (780 ft) 476' 476' 473' 474' 475' 474' 473' 475' 475' 474' 472' 475' 475'
7 II. REGULATORY
All State of California and public health agency regulatory requirements were met.
A. 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
Arsenic μg/L 2.0 10
Vinyl Chloride (VC) μg/L 0.50 0.5
Trichlorofluoromethane
(FREON 11)
μg/L 5.0 150
1,1-Dichloroethylene (1,1-
DCE)
μg/L 0.50 6
1,1,2-Trichloro-1,2,2-
trifluoroethane
μg/L 10 1200
Dichloromethane (Methylene
Chloride)
μg/L 0.50 5
trans-1,2-Dichloroethylene (t-
1,2-DCE)
μg/L 0.50 10
Methyl tert-Butyl Ether μg/L 3.0 13
1,1-Dichloroethane (1,1-DCA) μg/L 0.50 5
cis-1,2-Dichloroethylene (c-
1,2-DCE)
μg/L 0.50 6
Chloroform
(Trichloromethane)
μg/L 1.0 --
Carbon Tetrachloride μg/L 0.50 0.5
1,1,1-Trichloroethane (1,1,1-
TCA)
μg/L 0.50 200
Benzene μg/L 0.50 1
1,2-Dichloroethane (1,2-DCA) μg/L 0.50 0.5
Trichloroethylene (TCE) μg/L 0.50 5
1,2-Dichloropropane μg/L 0.50 5
Bromodichloromethane μg/L 1.0 --
Toluene μg/L 0.50 150
8 Tetrachloroethylene (PCE) μg/L 0.50 5
1,1,2-Trichloroethane (1,1,2-
TCA)
μg/L 0.50 5
Dibromochloromethane μg/L 1.0 --
Monochlorobenzene
(Chlorobenzene)
μg/L 0.50 70
Ethyl Benzene μg/L 0.50 300
m,p-Xylene μg/L 1.0 --
cis-1,3-Dichloropropene μg/L 0.50 --
o-Xylene μg/L 0.50 --
trans-1,3-Dichloropropene μg/L 0.50 --
Styrene μg/L 0.50 100
Bromoform μg/L 1.0
1,1,2,2-Tetrachloroethane μg/L 0.50
1,4-Dichlorobenzene (p-DCB) μg/L 0.50 5
1,2-Dichlorobenzene (p-DCB) μg/L 0.50 600
1,2,4-Trichlorobenzene μg/L 0.50 5
Total 1,3-Dichloropropene μg/L 0.50 0.5
Total Trihalomethanes
(TTHM)
μg/L 1.0 80
Total Xylenes (m,p & o) μg/L 0.50 1750
P= Present
A= Absent
mg/L = parts per million
μg/L = parts per billion
Sample Date Sample Site Location Results
04/09/2025
Type of Sampling Chino
2**
City
2 City
4A
Rialto
3 Rialto
5 Miro
3 EW-1
BLF
Cactus
BLF 6-
9 OPRT
P
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 3.0 4.9
Perchlorate (CLO4) 1.6* 2.7* <1.0 9.4* 140*
Total Dissolved Solids 190 190 310 230 200 200 240 310 310 200 Vinyl Chloride (VC) <0.50 <0.50
Trichlorofluoromethane
(FREON 11) <5.0 <5.0
1,1-Dichloroethylene (1,1-
DCE) <0.50 <0.50
1,1,2-Trichloro-1,2,2-
trifluoroethane <10 <10
Dichloromethane (Methylene <0.50 <0.50
9 Chloride)
trans-1,2-Dichloroethylene (t-
1,2-DCE) <0.50 <0.50
Methyl tert-Butyl Ether <3.0 <3.0
1,1-Dichloroethane (1,1-DCA) <0.50 <0.50
cis-1,2-Dichloroethylene (c-
1,2-DCE) <0.50 <0.50
Chloroform
(Trichloromethane) <1.0 <1.0
Carbon Tetrachloride <0.50 <0.50
1,1,1-Trichloroethane (1,1,1-
TCA) <0.50 <0.50
Benzene <0.50 <0.50
1,2-Dichloroethane (1,2-DCA) <0.50 <0.50
Trichloroethylene (TCE) 0.57 <0.50
1,2-Dichloropropane <0.50 <0.50
Bromodichloromethane <1.0 <1.0
Toulene <0.50 <0.50
Tetrachloroethylene (PCE) <0.50 <0.50
1,1,2-Trichloroethane (1,1,2-
TCA) <0.50 <0.50
Dibromochloromethane <1.0 <1.0
Monochlorobenzene
(Chlorobenzene) <0.50 <0.50
Ethyl Benzene <0.50 <0.50
m,p-Xylene <1.0 <1.0
cis-1,3-Dichloropropene <0.50 <0.50
o-Xylene <0.50 <0.50
trans-1,3-Dichloropropene <0.50 <0.50
Styrene <0.50 <0.50
Bromoform <1.0 <1.0
1,1,2,2-Tetrachloroethane <0.50 <0.50
1,4-Dichlorobenzene (p-DCB) <0.50 <0.50
1,2-Dichlorobenzene (p-DCB) <0.50 <0.50
1,2,4-Trichlorobenzene <0.50 <0.50
Total 1,3-Dichloropropene <0.50 <0.50
Total Trihalomethanes
(TTHM) <1.0 <1.0
Total Xylenes (m,p & o) <0.50 <0.50
*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). **Chino Well 2 VOC samples were taken in March 2025 and the results were reported in error under City Well 2 in the March 2025 MOR.
10 B. Sample Site Location Results
Rialto Distribution Sample Results
April 2025
Sample Location Free Cl Res (Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 1 - 04/04/25 mg/l P/A P/A Color Units TON NTU
335 W. Rialto 1.20 A A
1228 W. Merrill 1.20 A A
256 N. Fillmore 1.20 A A
987 W. Grove 1.10 A A
978 N. Driftwood 1.10 A A
1451 N. Linden 1.20 A A
469 W. Jackson 1.20 A A
935 E. Mariposa 0.90 A A
1000 N. Joyce 1.20 A A
766 N. Chestnut 1.10 A A
149 W. Victoria 1.00 A A
313 E. McKinley 1.00 A A
609 E. South 1.00 A A
273 E. Alru 1.00 A A
1161 S. Lilac 1.20 A A
101 E. Valley 1.10 A A
CYCLE 2 - 04/08/25 mg/l P/A P/A Color Units TON NTU
210 N. Park 1.23 A A <3.0 1 <0.10
101 S. Larch 1.08 A A <3.0 1 <0.10
320 N. Wisteria 1.13 P A <3.0 1 0.48
861 W. Grove 1.14 A A <3.0 1 <0.10
1168 N. Glenwood 1.17 A A <3.0 1 <0.10
1320 N. Fitzgerald 1.26 A A <3.0 1 <0.10
860 N. Willow 1.20 A A <3.0 1 <0.10
209 E. Cornell 1.15 A A <3.0 1 0.28
643 E. Margarita 1.19 A A <3.0 1 0.12
1170 N. Terrace Rd. 1.17 A A <3.0 1 0.16
681 E. Erwin 1.05 A A <3.0 1 <0.10
402 E. Merrill 1.13 A A <3.0 1 0.18
261 W. Wilson 1.31 A A <3.0 1 <0.10
532 S. Iris 1.32 A A <3.0 1 <0.10
281 W. Hawthorne 1.17 A A <3.0 1 0.12
379 W. Valley 1.04 A A <3.0 1 <0.10
11 Rialto Distribution Sample Results
April 2025
Sample Location
Free Cl Res
(Field)
Total
Coliform
E.
Coli
Apparent
Color
Odor
Threshold Turbidity
CYCLE 3 - 04/15/25 mg/l P/A P/A Color Units TON NTU
236 N. Willow 1.18 A A
775 E. Foothill 0.84 A A
878 N. Primrose 0.98 A A
369 E. Van Koevering 1.38 A A
274 W. Valencia 0.91 A A
1566 N. Fillmore 1.08 A A
932 N. Idyllwild 1.12 A A
644 N. Smoketree 1.09 A A
605 W. Rosewood 1.15 A A
1189 W. Second 1.22 A A
775 W. Rialto 1.09 A A
211 E. Wilson 1.16 A A
595 E. Huff 1.22 A A
1005 S. Riverside 1.24 A A
794 S. Verde 1.18 A A
0.40 1055 W. Bloomington 0.90 A A
CYCLE 4 - 04/22/25 mg/l P/A P/A Color Units TON NTU
375 S. Cactus 1.24 A A
101 S. Linden 1.17 A A
234 N. Larch 1.21 A A
575 N. Driftwood 1.29 A A
1355 W. Shamrock 1.13 A A
992 N. Yucca 1.17 A A
481 W. Cornell 1.26 A A
158. E. Shamrock 1.18 A A
749 E. Holly 1.19 A A
545 E. Victoria 1.23 A A
200 N. Sycamore 1.17 A A
407 E. Allen 1.20 A A
399 E. Montrose 1.54 A A
856 S. Orange 1.44 A A
911 S. Cactus 1.32 A A
220 W. Valley 0.75 A A
P/A + Present or
Absent
12 C. Violations
No violations were received during this reporting period.
D. 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 purchased low TDS water while adhering to the overall water supply strategy and meetin g system demands. The TDS was 2 18 mg/L for the month of April as compared to 225 mg/L in March. 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
Heat Illness Prevention – Cal/OSHA
Hearing Conservation & Protection
Training
Leading Indicator Submittal
Instructions
Lost Time Incidents, count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 2
Vehicle Incidents, count 0
*A lost time incident has not occurred in the past 4217 days.
IV. CHEMICAL USE
Sodium hypochlorite is the only chemical added to the water system. A total of 2004 gallons of sodium hypochlorite was used in April as compared to 1 587 gallons used in March.
13 V. ELECTRICAL USE
Southern California Edison (SCE) has not provided the data for April 2025. We will provide the data as it is received, thus will include yearly usage received to date.
SCE kWh
Year Month
Billed
Usage
2024 January 208,007
2024 February 186,792
2024 March 421,268
2024 April 463,324
2024 May 428,050
2024 June 629,344
2024 July 550,202
2024 August 650,431
2024 September 562,739
2024 October 529,208
2024 November 266,378
2024 December 380,580
VI. WATER QUALITY COMPLAINTS
No complaints were received during this reporting period.
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 th e 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 disch arges into the BLF and its production is included in deliveries from that shared transmission line when City Well 4A is in service.
14 The overall pumping strategy is based on adjudicated rights, well availability, remediation requirements, and quality of so urce, cost to operate, and varying weather conditions. TDS effluent concentrations for the City of Rialto WWTP are taken into consideration when operating the facilities and water sources.
A. Operational Wells
All wells were operational.
B. 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 . 55 valves were exercised in the month of April.
Valve Turning Progress
Valves
Turned
2020 530
2021 340
2022 463
2023 750
2024 379
2025 216
C. Hydrant Flushing
There are 63 hydrant/dead ends that are flushed annually to maintain water quality. Six flushings were performed in April.
Hydrant/Dead End Flushing
Progress
2025
January 0
February 0
March 6
April 6
Total 12
Progress % (19)
15 D. Sanitary Survey
DDW performed field site visit s 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 April:
• Preventive Maintenance –285
• Corrective Maintenance –0
• Predictive Maintenance –0
55– PMs planned for May 2025
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 April:
• Main line –1
• Service line –2
• Hydrants - 10
• Angle Meter Stop –8
• Meter Box & Lid Replacement –14
• Meter Leaks/ Replacements -24
B. Major Equipment and/or Machinery Outages
All wells were operational.
16 IX. RAINFALL TOTALS
RIALTO WASTEWATER
MONTHLY OPERATIONS REPORT
Reporting Period:
April 2025
Prepared for: - Rialto Water Services
Prepared by: - Veolia Water West Operating Services
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
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 two residential call-outs for sewer-related issues.
1. Collection System/Customer Service Log
a. Collections group activities this month:
Category Current Month
Statistics
Prior Month Statistics 2025 Year to Date
Statistics
Sanitary sewers are cleaned using the
conventional method, including feet, which
includes “Hot spot cleaning.”
15,459 28,972 83,249
Sanitary sewers assessed using the SL-RAT
method, feet 0 0 0
CCTV Inspection, miles (26 is the annual goal)* 2.63 4.83 9.34 Manhole Inspections 13 2 30
USA Dig Alert Markings, count 69 27 173
Residential call outs 2 6 11
Sanitary sewer overflows 0 0 1
b. S.S.O. N/A
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:
O.R.&R. Project WW2425-03 Completed. (Secondary Clarifier #2 Cleaning and Structural Steel Coating) O.R.&R. Projects WW2324-17 & WW2324-18 progress. All analytical hardware was installed and operable. Only S.C.A.D.A. programming needs to be completed to finish the project.
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 6
Lost Time Incidents count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 1
Vehicle Incidents, count 0
*A lost time incident has not occurred since 9-3-2020, totaling 1,699 days.
5. Biosolids, Chemicals, and Utilities
a. Monthly Biosolids Production
Biosolids Current Month
Statistics
Prior Month Statistics 2025 Year-to-Date
Statistics
Wet Tons Produced 1,532.12 1,363.77 5,055.89
b. Monthly Chemical Consumption
Chemical Current Month
Gallons Used
Prior Month
Gallons Used
Sodium Hypochlorite, Tertiary Disinfection 28,526 26,437 Sodium Bisulfite, Discharge Dechlorination 7,003 10,172 Ferrous Chloride, Digester Gas Conditioning 4,108 4,398 Polymer, Gravity Belt Thickener 356 426
Polymer, Belt Filter Press 712 698
Alum, Tertiary Filters 12 16
c. Monthly Utilities Consumption
Utility Current Month Statistics Prior Month Statistics Electricity WWTP, KWH 412,716 455,101
Electricity Lilac LS, KWH ** 796
Electricity Sycamore LS, KWH ** 490
Electricity Ayala LS, KWH ** 7787
Electricity Agua Mansa LS, KWH ** 2534
Electricity Cactus LS, KWH 1585 1441
Electricity Ramrod LS, KWH 597 654
Frisbee Park LS, KWH ** 717
El Rancho Verde LS, KWH 1825 1874
Natural Gas WWTP, Therms 5930 6260
* LS is in bypass mode, pending CIP completion
** SCE has not updated this account.
6. Odor Complaints Received/Actions Taken
No odor complaints were received this month.
7. Major Equipment and/or Machinery Outages
● Sludge Holding Tank
● Aeration Basin #1 is currently offline.
8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
San Bernardino Fire District inspected the Diesel Storage Tanks
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
4/2/2025 320 N Aspen The resident called to report a backup in their sewer line.
The mainline was inspected and found to be clear. The
resident was informed to call the plumber.
BVO NA NA
4/18/2025 5454 W Rosewood A resident called to report an odor coming from the sewer line. The main line in front of the property was
courtesy cleaned.
ET NA NA
Table 1 Summary
Table 1 Summary MOR
April 2025
Rialto Rialto Rialto
Influent
daily flow
Effluent
Flow
Influent
BOD
Influent
BOD
Influent
BOD Load
Effluent
BOD
Effluent
BOD Load
BOD %
Removal
Influent
TSS
Influent
TSS Load
Effluent
TSS
Effluent
TSS Load
TSS %
Removal
Date MGD MGD mg/l mg/l lbs/day mg/L lbs/day % mg/L lbs/day mg/L lbs/day % 4/1/2025 6.94 6.36
4/2/2025 6.60 7.37
4/3/2025 6.60 6.88
4/4/2025 6.70 6.76 310 310 17,322 3.9 219.88 98.70
4/5/2025 6.61 7.06
4/6/2025 6.92 7.08
4/7/2025 7.16 7.57 420 420 25,080 4.1 258.85 99.00 270.00 16123.00 1.00 63.00 99.60 4/8/2025 6.94 7.09
4/9/2025 6.71 6.96
4/10/2025 9.19 6.91
4/11/2025 4.62 7.02 470 470 18,109 5.2 304.44 98.90
4/12/2025 6.79 6.87
4/13/2025 6.78 7.46
4/14/2025 7.11 6.93 390 390 23,126 5.0 288.98 98.70 230.00 13638.00 2.00 116.00 99.10 4/15/2025 6.86 6.57
4/16/2025 6.84 6.70
4/17/2025 6.65 7.31
4/18/2025 6.95 6.98 380 380 22,026 5.3 308.53 98.60
4/19/2025 6.19 7.08
4/20/2025 7.22 7.58
4/21/2025 6.97 7.28 350 350 20,345 3.9 236.79 98.90 260.00 15114.00 1.00 61.00 99.60 4/22/2025 6.93 6.61
4/23/2025 6.59 6.28
4/24/2025 7.10 6.99
4/25/2025 6.75 7.38 320 320 18,014 4.7 289.28 98.50
4/26/2025 6.22 7.17
4/27/2025 6.74 7.49
4/28/2025 7.00 6.56
4/29/2025 6.77 7.70
4/30/2025 6.66 7.37
Minimum 4.62 6.28 310 310 17,322 3.9 219.88 98.50 230.00 13638.00 1.00 61.00 99.10 Maximum 9.19 7.70 470 470 25,080 5.3 308.53 99.00 270.00 16123.00 2.00 116.00 99.60 Total 204.11 211.37 2,640 2,640 144,023 32.1 1906.75 691.40 760.00 44875.00 4.00 239.00 298.40 Average 6.80 7.05 377 377 20,575 4.6 272.39 98.80 253.00 14958.00 1.33 80.00 99.40 Rialto WRF\Effluent Rialto WRF\Influent Rialto WRF\Effluent
Table 2 Summary
Table 2 Summary MOR
April 2025
Rialto Rialto Rialto
Influent
Conductivity
Eff
Conductivity
Daily Ave
Influent
COD
Final
Efffluent
COD
Influent
TDS
Filter
Effluent
TDS
EFF FINAL
TDS
Influent
Inorganic
Nitrogen
Effluent
Inorganic
Nitrogen
Date (uS/cm) (uS/cm) mg/l mg/l mg/l mg/l mg/L mg/L mg/l as N 4/1/2025 1447.00 809.00
4/2/2025 1495.00 783.00
4/3/2025 1541.00 770.00 700 20.0 490.00 43.00
4/4/2025 1428.00 784.00
4/5/2025 1145.00 790.00
4/6/2025 1304.00 814.00
4/7/2025 1473.00 800.00
4/8/2025 1505.00 797.00 430.00 470.00 7.50
4/9/2025 1402.00 765.00
4/10/2025 1476.00 774.00
4/11/2025 1195.00 781.00
4/12/2025 1344.00 782.00
4/13/2025 1321.00 787.00
4/14/2025 1530.00 773.00
4/15/2025 1298.00 765.00
4/16/2025 1434.00 763.00
4/17/2025 1493.00 758.00
4/18/2025 1501.00 784.00
4/19/2025 1259.00 846.00
4/20/2025 1256.00 810.00
4/21/2025 1485.00 768.00
4/22/2025 1433.00 789.00
4/23/2025 1511.00 793.00
4/24/2025 1536.00 789.00
4/25/2025 1320.00 778.00
4/26/2025 1340.00 788.00
4/27/2025 1426.00 785.00
4/28/2025 1383.00 789.00
4/29/2025 1557.00 786.00
4/30/2025 1473.00 819.00
Minimum 1145.00 758.00 700 20.0 490.00 430.00 470.00 43.00 7.50 Maximum 1557.00 846.00 700 20.0 490.00 430.00 470.00 43.00 7.50 Average 1410.00 787.00 700 20.0 490.00 430.00 470.00 43.00 7.50 Rialto WRF\Effluent Rialto WRF\Eff Rialto WRF\Effluent
Table 3 Summary
*Cyanide was not available at the time of report completion
Table 3 Summary MOR
April 2025
Tranfer
Tranfer
Rialto
Tranfer Data
Influent pH 24 hr avg.
effl. pH
Effluent
Temp
Effluent
Ammonia
Effluent
Total
Coliform
Effluent
Coliform 7
Day Median
Effluent
Cyanide,
Free
Available
Eff Di(2-
ethylhexyl)
phthalate
(DEHP)
FIT- 8321
ADG #2
Flow
FIT- 8321
ADG #2
Flow
Natural Gas
Daily Use
FIT- 8321
ADG #2 Flow
Date SU SU Deg C mg/L MPN/100mL MPN/100ML ug/L ug/l cu ft/day cu ft/day cf/day cu ft/day 4/1/2025 7.19 7.05 22.00 <1.8 <1.80 139705.00 139705.00 22600.00 139705.00 4/2/2025 7.39 7.03 21.70 <1.8 <1.80 146583.00 146583.00 20500.00 146583.00 4/3/2025 7.43 7.05 21.40 2.0 <1.80 169270.00 169270.00 20500.00 169270.00 4/4/2025 7.65 7.03 21.50 <1.8 <1.80 152470.00 152470.00 21400.00 152470.00 4/5/2025 7.45 7.02 21.30 <1.8 <1.80 135899.00 135899.00 23000.00 135899.00 4/6/2025 7.55 6.93 21.50 <1.8 <1.80 171797.00 171797.00 22000.00 171797.00 4/7/2025 7.50 6.88 22.00 <1.8 <1.80 130190.00 130190.00 22100.00 130190.00 4/8/2025 7.38 6.98 22.40 2.0 <1.80 <5.00 160339.00 160339.00 20800.00 160339.00 4/9/2025 7.03 6.99 22.60 2.0 <1.80 163376.00 163376.00 21200.00 163376.00 4/10/2025 6.65 6.94 22.90 <1.8 <1.80 151392.00 151392.00 10900.00 151392.00 4/11/2025 6.74 7.24 23.10 <1.8 <1.80 153495.00 153495.00 3200.00 153495.00 4/12/2025 7.27 7.27 23.00 <1.8 <1.80 142522.00 142522.00 16400.00 142522.00 4/13/2025 6.87 7.33 23.20 <1.8 <1.80 142845.00 142845.00 18100.00 142845.00 4/14/2025 6.72 7.41 23.40 0.07 <1.8 <1.80 126114.00 126114.00 19000.00 126114.00 4/15/2025 7.67 7.41 23.20 <1.8 <1.80 127725.00 127725.00 19500.00 127725.00 4/16/2025 7.15 7.39 23.00 <1.8 <1.80 138921.00 138921.00 19200.00 138921.00 4/17/2025 7.22 7.42 22.70 <1.8 <1.80 138089.00 138089.00 18300.00 138089.00 4/18/2025 6.97 7.35 22.60 <1.8 <1.80 154673.00 154673.00 19100.00 154673.00 4/19/2025 7.42 7.31 22.30 <1.8 <1.80 148251.00 148251.00 36000.00 148251.00 4/20/2025 7.31 7.36 22.50 <1.8 <1.80 144101.00 144101.00 23800.00 144101.00 4/21/2025 7.17 7.47 22.90 0.05 <1.8 <1.80 142220.00 142220.00 20900.00 142220.00 4/22/2025 7.14 7.42 23.00 <1.8 <1.80 151827.00 151827.00 20200.00 151827.00 4/23/2025 7.12 7.39 23.00 <1.8 <1.80 159621.00 159621.00 21100.00 159621.00 4/24/2025 7.11 7.45 23.00 <1.8 <1.80 152085.00 152085.00 21400.00 152085.00 4/25/2025 7.11 7.51 22.90 <1.8 <1.80 128356.00 128356.00 21900.00 128356.00 4/26/2025 7.26 7.52 22.20 <1.8 <1.80 152402.00 152402.00 22900.00 152402.00 4/27/2025 7.57 7.54 22.20 <1.8 <1.80 157648.00 157648.00 19600.00 157648.00 4/28/2025 6.98 7.57 22.40 <1.8 <1.80 148332.00 148332.00 20900.00 148332.00 4/29/2025 7.08 7.60 22.70 2.0 <1.80 146655.00 146655.00 21000.00 146655.00 4/30/2025 7.13 7.37 23.10 <1.8 <1.80 143837.00 143837.00 21800.00 143837.00 Minimum 6.65 6.88 21.30 0.05 <1.8 <1.80 <5.00 126114.00 126114.00 3200.00 126114.00 Maximum 7.67 7.60 23.40 0.07 2.0 <1.80 <5.00 171797.00 171797.00 36000.00 171797.00 Average 7.21 7.27 22.50 0.06 <1.8 <1.80 <5.00 147358.00 147358.00 20310.00 147358.00 Rialto WRF\Influent Rialto WRF\Effluent Rialto WRF\Eff Rialto WRF\Effluent
Monthly Sewer Line Cleaned