Cable Advisory
&
Utility Commission Report
November 2025
Reporting period September 2025
RIALTO
CUSTOMER SERVICE & REVENUE
MONTHLY OPERATIONS REPORT
Reporting Period:
September 2025
Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
1 RIALTO WATER
MONTHLY OPERATIONS REPORT
Reporting Period:
September 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 9
C. Violations 10
D. Source Water Total Dissolved Solids (TDS) 11
III. HEALTH AND SAFETY 11
A. Monthly Safety Program Overview 11
IV. CHEMICAL USE 11
V. ELECTRICAL USE 11
VI. WATER QUALITY COMPLAINTS 12
VII. OPERATIONS UPDATE 12
A. Operational Wells 12
B. Valve Activity 13
C. Hydrant Flushing 13
D. Sanitary Survey 13
VIII. ASSET MANAGEMENT 14
A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues 14 B. Major Equipment and/or Machinery Outages 14
IX. RAINFALL TOTALS 14
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 1032.08 acre-feet. 834.97 acre- feet was delivered into the system from the groundwater wells (City 4A production is included in the well total). 105.02 acre-feet was delivered via the BLF transmission system (City 4A production has been deducted). 92.09 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 9/1/25 5.62 3.73 6.75 0.00 6.20 0.00 9.39 5.78 6.98 2.99 38.05 9/2/25 3.72 5.65 6.06 0.00 7.44 0.00 7.82 5.85 5.21 2.88 36.81 9/3/25 5.14 3.43 6.73 0.00 5.82 0.00 10.30 7.35 5.00 3.24 36.71 9/4/25 5.14 3.69 6.15 0.00 5.62 0.00 6.21 4.02 3.83 3.45 31.91 9/5/25 4.41 1.96 3.40 0.00 5.70 0.00 10.09 4.02 3.78 2.52 25.78 9/6/25 2.62 7.37 8.13 0.00 6.16 0.00 8.45 0.00 12.86 2.81 39.95 9/7/25 1.03 8.61 6.43 0.00 6.50 0.00 9.00 12.01 5.60 3.20 43.38 9/8/25 0.00 7.19 6.13 0.00 5.93 0.00 8.08 5.56 6.98 2.96 34.75 9/9/25 0.00 8.10 6.29 0.00 6.29 0.00 9.56 7.83 4.64 3.21 36.35 9/10/25 0.00 7.76 5.90 0.00 6.07 0.00 8.35 6.29 5.23 2.89 34.14 9/11/25 0.00 6.80 5.88 0.00 5.54 0.00 8.64 6.29 3.90 3.15 31.56 9/12/25 0.00 3.52 6.22 0.00 5.21 0.00 8.68 8.72 7.51 3.17 34.35 9/13/25 0.00 7.38 7.09 0.00 7.98 0.00 8.07 3.44 6.06 3.21 35.16 9/14/25 0.00 8.59 8.75 0.00 6.22 0.00 10.19 8.65 4.61 3.47 40.29 9/15/25 3.49 2.07 3.37 0.00 5.94 0.00 7.91 5.95 5.00 2.66 28.49 9/16/25 6.54 2.36 7.09 0.00 7.14 0.00 10.39 6.08 5.44 3.26 37.91 9/17/25 4.04 0.29 5.10 0.00 5.08 0.00 9.04 10.42 4.48 3.08 32.48 9/18/25 6.15 1.13 6.66 0.00 6.57 0.00 3.14 2.27 5.03 3.07 30.88 9/19/25 5.10 3.02 6.38 0.00 6.23 0.00 1.55 0.00 5.66 2.76 29.15 9/20/25 4.27 1.99 5.95 0.00 5.82 0.00 9.08 0.00 14.37 2.14 34.54 9/21/25 5.74 0.00 6.36 0.00 6.30 0.00 9.14 4.27 5.44 4.77 32.88 9/22/25 4.87 0.00 7.42 0.00 7.45 0.00 8.10 9.00 4.57 2.71 36.01 9/23/25 6.01 0.00 4.41 0.00 4.71 0.00 8.63 8.70 5.35 2.71 31.89 9/24/25 4.66 0.00 6.08 0.00 5.93 0.00 9.21 7.55 3.49 3.57 31.28 9/25/25 4.38 2.86 8.38 0.00 0.03 0.00 7.94 2.30 7.27 2.27 27.49 9/26/25 5.85 3.43 7.09 0.00 0.00 0.00 9.07 9.57 5.10 2.08 33.12 9/27/25 5.97 9.80 6.93 0.00 4.04 0.00 7.33 4.15 6.41 2.43 39.73 9/28/25 5.46 9.72 5.99 0.00 5.89 0.00 2.34 0.80 5.26 6.06 39.17 9/29/25 5.07 8.08 6.59 0.00 12.11 0.00 0.00 0.00 5.30 2.93 40.08 9/30/25 5.71 0.00 7.14 0.00 0.08 0.00 8.93 6.25 6.16 2.44 27.78 TOTAL 110.99 128.53 190.84 0.00 169.98 0.00 234.63 163.12 176.53 92.09 1032.08 MIN 0.00 0.00 3.37 0.00 0.00 0.00 0.00 0.00 3.49 2.08 25.78 MAX 6.54 9.80 8.75 0.00 12.11 0.00 10.39 12.01 14.37 6.06 43.38 AVE 3.70 4.28 6.36 0.00 5.67 0.00 7.82 5.44 5.88 3.07 34.40 SEPTEMBER 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 SEPTEMBER 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 9/1/25 0.00 0.00 7.88 0.00 1.63 5.78 0.00 0.00
9/2/25 0.00 0.00 8.25 0.00 0.00 5.85 0.00 0.00
9/3/25 0.00 0.00 7.87 0.00 0.00 7.35 0.00 0.00
9/4/25 0.00 0.00 6.08 0.00 0.00 4.02 0.00 0.00
9/5/25 0.00 0.00 4.49 0.00 0.00 4.02 0.00 0.00
9/6/25 0.00 0.00 4.60 0.00 0.61 0.00 0.00 0.00
9/7/25 0.00 0.00 10.30 0.00 1.86 12.01 0.00 0.00
9/8/25 0.00 0.00 8.32 0.00 0.80 5.56 0.00 0.00
9/9/25 0.00 0.00 8.46 0.00 0.00 7.83 0.00 0.00
9/10/25 0.00 0.00 6.01 0.00 0.00 6.29 0.00 0.00
9/11/25 0.00 0.00 7.64 0.00 0.00 6.29 0.00 0.00
9/12/25 0.00 0.00 5.83 0.00 0.00 8.72 0.00 0.00
9/13/25 0.00 0.00 6.12 0.00 0.00 3.44 0.00 0.00
9/14/25 0.00 0.00 7.42 0.00 0.00 8.65 0.00 0.00
9/15/25 0.00 0.00 7.23 0.00 0.00 5.95 0.00 0.00
9/16/25 0.00 0.00 6.87 0.00 0.00 6.08 0.00 0.00
9/17/25 0.00 0.00 7.61 0.00 0.00 10.42 0.00 0.00
9/18/25 0.00 0.00 2.73 0.00 0.00 2.27 0.00 0.00
9/19/25 0.00 0.00 3.13 0.00 1.49 0.00 0.00 0.00
9/20/25 0.00 0.00 0.00 0.00 0.77 0.00 0.00 0.00
9/21/25 0.00 0.00 5.82 0.00 9.59 4.27 0.00 0.00
9/22/25 0.00 0.00 5.30 0.00 0.00 9.00 0.00 0.00
9/23/25 0.00 0.00 6.34 0.00 0.00 8.70 0.00 0.00
9/24/25 0.00 0.00 6.41 0.00 0.00 7.55 0.00 0.00
9/25/25 0.00 0.00 6.45 0.00 0.00 2.30 0.00 0.00
9/26/25 0.00 0.00 4.54 0.00 1.67 9.57 0.00 0.00
9/27/25 0.00 0.00 3.87 0.00 0.00 4.15 0.00 0.00
9/28/25 0.00 0.00 14.41 0.00 1.61 0.80 0.00 0.00
9/29/25 0.00 0.00 3.49 0.00 0.00 0.00 0.00 0.00
9/30/25 0.00 0.00 3.78 0.00 0.00 6.25 0.00 0.00
TOTAL 0.00 0.00 187.25 0.00 20.03 163.12 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 14.41 0.00 9.59 12.01 0.00 0.00
AVE 0.00 0.00 6.24 0.00 0.67 5.44 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 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sept Chino # 1 (580 ft) In-
active well 429' 411' 411' 410' 412' 414' 414' 413' 413' 413' 411' 410' 410' Chino # 2 (550 ft) 369' 343' 340' 342' 341' 335' 338' 335' 337' 334' 334' 333' 331' City # 1 (260 ft) 392' 247' 251' 121' 126' 121' 122' 119' 117' 119' 121' 120' 120' City # 2 (480 ft) 402' 137' 139' 147' 146' 128' 130' 128' 122' 129' 131' 125' 126' City # 3 (525 ft) Out
of Service 505' 416' 417' 414' 414' 415' 416' 416' 414' 417' 418' 418' 417' City # 4A (528 ft) 406' 380' 380' 381' 374' 377' 375' 373' 362' 367' 370' 366' 360' City # 5 (385 ft) In-
active well 364' 322' 320' 318' 318' 321' 318' 318' 316' 316' 316' 316' 317' Rialto # 1 (650 ft) In-
active well 588' 553' 552' 561' 555' 571' 569' 565' 563' 564' 565' 562' 563' Rialto # 2 (550 ft) In-
active well 502' 501' 501' 499' 501' 496' 495' 502' 496' 498' 498' 497' 496' Rialto # 3 (509 ft) 478' 476' 473' 472' 473' 473' 472' 472' 470' 470' 472' 471' 471' Rialto # 4 (450 ft) In-
active well 418' 418' 414' 413' 414' 415' 416' 415' 415' 414' 413' 414' 413' Rialto # 5 (560 ft) 387' 384' 384' 385' 385' 384' 384' 386' 386' 387' 387' 387' 386' Rialto Well # 7 In-
active well 362' 362' 361' 362' 360' 360' 359' 353' 356' 354' 356' 357' 357' Miro # 3 (563 ft) 492' 485' 484' 484' 484' 484' 484' 483' 483' 481' 480' 479' 480' EW-1 (780 ft) 476' 473' 475' 475' 474' 472' 475' 475' 474' 475' 460' 471' 467'
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
• Stage 2 DBP Annual TTHM and HAA5 Report
• Quarterly Report for Disinfectant Residuals Compliance 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
Perfluorooctanoic (PFOA) ng/L 2.0 4
Perfluorooctanesulfonic
(PFOS) ng/L 2.0 4
Arsenic μg/L 2.0 10
P= Present
A= Absent
mg/L = parts per million
μg/L = parts per billion
ng/L = parts per trillion
8 Sample Date Sample Site Location Results
09/17/2025
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 OUT OF
SERVICE A A A
E. Coli A A A A A A A A A
Nitrate as N 3.0
Perchlorate (CLO4) 2.3* 8.2* <1.0 7.6*
Total Dissolved Solids 260 180 300 220 230 210 330 330 250 Perfluorooctanoic (PFOA) <2.0 8.4**
Perfluorooctanesulfonic
(PFOS) <2.0 2.5**
Arsenic 5.5
*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). ** Well is severed from the water distribution system and is used for monitoring purposes only.
Sample Date
09/23/2025 Sample Site Location Results
Type of Sampling 749 E
Holly
978 N
Driftwood
1228 W
Merrill
101 E
Valley
BLF Cactus
Reservoir OPRTP
Trihalomethanes
Bromodichloromethane 1.2 <1.0 <1.0 <1.0 <1.0 <1.0
Bromoform <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Chloroform
(Trichloromethane) 1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Dibromochloromethane 1.1 <1.0 <1.0 <1.0 <1.0 <1.0
Total Trihalomethanes
(TTHM) 3.3 <1.0 <1.0 <1.0 <1.0 <1.0
Haloacetic Acid
Monochlorcetic Acid <2.0 <2.0 <2.0 <2.0 <2.0 <2.0
Dichloracetic Acid <1.0 1.2 <1.0 <1.0 <1.0 <1.0
Trichloroacetic Acid <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Monobromoacetic Acid <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Dibromoacetic Acid <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Total Haloacetic Acids
(HAA5) <2.0 <2.0 <2.0 <2.0 <2.0 <2.0
9 B. Sample Site Location Results
Rialto Distribution Sample Results
September 2025
Sample Location Free Cl Res (Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 1 - 09/03/25 mg/l P/A P/A Color Units TON NTU
335 W. Rialto 1.20 A A
1228 W. Merrill 1.00 A A
256 N. Fillmore 1.10 A A
987 W. Grove 1.10 A A
978 N. Driftwood 1.00 A A
1451 N. Linden 1.10 A A
469 W. Jackson 1.00 A A
935 E. Mariposa 0.93 A A
1000 N. Joyce 0.99 A A
766 N. Chestnut 1.10 A A
149 W. Victoria 1.00 A A
313 E. McKinley 0.79 A A
609 E. South 1.00 A A
273 E. Alru 0.72 A A
1161 S. Lilac 1.00 A A
101 E. Valley 0.94 A A
CYCLE 2 - 09/09/25 mg/l P/A P/A Color Units TON NTU
210 N. Park 1.00 A A
101 S. Larch 0.56 A A
320 N. Wisteria 0.96 A A
861 W. Grove 0.73 A A
1168 N. Glenwood 1.10 A A
1320 N. Fitzgerald 0.95 A A
860 N. Willow 0.96 A A
209 E. Cornell 1.00 A A
643 E. Margarita 1.10 A A
1170 N. Terrace Rd. 1.20 A A
681 E. Erwin 1.00 A A
402 E. Merrill 1.10 A A
261 W. Wilson 1.00 A A
532 S. Iris 0.84 A A
281 W. Hawthorne 1.00 A A
379 W. Valley 1.00 A A
Rialto Distribution Sample Results
September 2025
10 Sample Location
Free Cl Res
(Field)
Total
Coliform
E.
Coli
Apparent
Color
Odor
Threshold Turbidity
CYCLE 3 - 09/16/25 mg/l P/A P/A Color Units TON NTU
236 N. Willow 0.97 A A <3.0 1 <0.10
775 E. Foothill 0.76 A A <3.0 1 <0.10
878 N. Primrose 1.00 A A <3.0 1 <0.10
369 E. Van Koevering 0.95 A A <3.0 1 <0.10
274 W. Valencia 0.68 A A <3.0 1 <0.10
1566 N. Fillmore 0.63 A A <3.0 1 <0.10
932 N. Idyllwild 0.93 A A <3.0 1 <0.10
644 N. Smoketree 0.92 A A <3.0 1 <0.10
605 W. Rosewood 1.00 A A <3.0 1 0.22
1189 W. Second 1.00 A A <3.0 1 <0.10
775 W. Rialto 0.96 A A <3.0 1 <0.10
211 E. Wilson 0.84 A A <3.0 1 <0.10
595 E. Huff 0.94 A A <3.0 1 <0.10
1005 S. Riverside 1.00 A A <3.0 1 <0.10
794 S. Verde 0.64 A A <3.0 1 <0.10
1055 W. Bloomington 0.99 A A <3.0 1 <0.10
CYCLE 4 - 09/23/25 mg/l P/A P/A Color Units TON NTU
375 S. Cactus 1.10 A A
101 S. Linden 1.20 A A
234 N. Larch 1.20 A A
575 N. Driftwood 0.96 A A
1355 W. Shamrock 1.30 A A
992 N. Yucca 0.80 A A
481 W. Cornell 1.20 A A
158. E. Shamrock 1.10 A A
749 E. Holly 1.00 A A
545 E. Victoria 1.10 A A
200 N. Sycamore 1.10 A A
407 E. Allen 1.10 A A
399 E. Montrose 1.10 A A
856 S. Orange 0.86 A A
911 S. Cactus 1.00 A A
220 W. Valley 1.00 A A
P/A + Present or
Absent
C. Violations
No violations were received during this reporting period. 11 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 meeting system demands. The TDS was 250 mg/L for the month of September as compared to 2 33 mg/L in August. 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
Safety Week: Stop Work
Authority
Annual Drill: Fire Drill
Lost Time Incidents, count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 6
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 3295 gallons of sodium hypochlorite was used in September as compared to 3928 gallons used in August.
V. ELECTRICAL USE
Southern California Edison (SCE) has not provided all of the data for September 2025.
We will provide the data as it is received, thus will include yearly usage received to date.
SCE kWh
Year Month Billed
12 Usage
2024 October 529,208
2024 November 266,378
2024 December 247,546
2025 January 360,398
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
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 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 t o 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 when 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 Rialto WWTP are taken into consideration when operating the facilities and water sources.
A. Operational Wells
EW-1 well was out of service due to pump issues.
13 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 . Nine valves were exercised in the month of September.
Valve Turning Progress
Valves
Turned
2020 530
2021 340
2022 463
2023 750
2024 379
2025 322
C. Hydrant Flushing
There are 63 hydrant/dead ends that are flushed annually to maintain water quality. Three flushings were performed in September.
Hydrant/Dead End Flushing
Progress
2025
January 0
February 0
March 6
April 6
May 11
June 0
July 0
August 29
September 3
Total 55
Progress % (87)
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.
14 VIII. ASSET MANAGEMENT
The following work orders were completed by Water production staff for the month of September:
• Preventive Maintenance –173
• Corrective Maintenance –1
• Predictive Maintenance –0
83– PMs planned for October 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 September:
• Main line – 1
• Service line – 5
• Hydrants - 1
• Angle Meter Stop – 10
• Meter Box & Lid Replacement – 0
• Meter Leaks/ Replacements - 11
B. Major Equipment and/or Machinery Outages
EW-1 well was out of service due to pump issues.
IX. RAINFALL TOTALS
15 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........................................................................................................................... 7 VI. SERVICE ORDERS ..................................................................................................................... 7 VII. OTHER ACTIVITIES ................................................................................................................... 7 VIII. REVENUE REPORT ................................................................................................................... 7 A. Revenue Summary ........................................................................................................... 7 B. Non Rate Revenue - Extraterritorial Customers ............................................................. 8 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 ....................................................... 11 G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison ..................... 11 H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison .................. 11 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date ........................... 12 J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison ............ 12 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging ......................... 13
3 I. CUSTOMER SERVICE SUMMARY
During this reporting month, the Customer Service team provided call service level of
90.5%. Out of 1,411 inbound calls answered 1,277 answered within the first 30 seconds.
Water consumption has decreased by less than 19.8% when compared against previous month. When compared against last year, consumption has decreased 22.7%. This increase is attributed higher water consumption during the prior month.
Sewer revenue has decreased by less than 1% compared to the prior month and increased by 2.3% from last year.
II. CALL CENTER PERFORMANCE
During this reporting month, service level was 90.5% with 1,277 out of 1,411 being answered within the first 30 seconds. Overall average wait time was forty-two (42) seconds.
III. AUTOMATED SERVICES
About 12884 or 56.3% of the rate payers have created log-ins to access their accounts online. Of these customers, with online access, 48.3% have chosen the e-bill option. This e-bill participation is 7.2% increase from September of the prior year.
87.6% 91.0% 89.5% 86.8% 89.6% 88.8% 91.8% 89.1% 88.0% 85.0% 86.7% 80.1%
90.5%
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
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Answer in 30 Sec 1,030 1,193 982 1,100 1,091 1,153 1,183 1,148 1,120 1,256 1,263 1,043 1,277 Calls Answered 1,176 1,310 1,096 1,267 1,218 1,308 1,288 1,287 1,272 1,479 1,456 1,294 1,411 Service Level 87.6% 91.0% 89.5% 86.8% 89.6% 88.8% 91.8% 89.1% 88.0% 85.0% 86.7% 80.1% 90.5% Call Center Performance
Answer in 30 Sec Calls Answered Service Level
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Number of Bills 22,470 22,541 22,571 22,575 22,587 22,604 22,657 22,694 22,705 22,770 22,792 22,838 22,864 Number of Bill Adjustments (during billing) 5 11 9 29 17 10 29 25 15 18 29 10 7 Automated Over the Phone Payments 2,050 2,483 2,092 2,436 2,509 2,040 2,509 2,454 2,276 2,578 2,596 2,344 2,531 Online Payment 7,538 9,302 7,804 10,320 9,747 7,676 9,912 9,798 8,434 9,800 10,260 8,691 11,224 E-bill Participants 5,814 5,855 5,922 5,959 5,997 6,031 6,069 5,969 6,000 6,074 6,134 6,185 6,233 Auto Pay Participants (New Portal) 4,278 4,305 4,343 4,367 4,420 4,467 4,536 4,554 4,630 4,696 4,728 4,776 4,834 PayNearMe 92 95 93 95 108 73 99 97 88 88 88 88 103
4 IV. CONSUMPTION & BILLING
A. Consumption
Water consumption has decreased by 19.8% when compared against previous month.
When compared against last year, consumption has decreased 22.7%. This increase is attributed higher water consumption during the prior month due to additional days between the meter reads.
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 259,394 284,167 203,166 212,580 316,422 285,524 323,411 430,678 345,305 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 58,461 59,483 56,496 69,265 66,908 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 B. Billing
A total of 22,864 bills were mailed or sent out electronically in September. Billing accuracy was 99.9% with seven (7) requiring adjustments after bill generation.
V. REVENUE & AGING
A. Revenue
Water revenue has decreased 12.4% when compared against the prior month and decreased 5.9% when compared against previous year. Sewer revenue has decreased by less than 1% compared to the prior month and increased by 2.3% from last year. The rise in revenue is mostly attributed to recent rate increase in January 2025.
(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 $962,367.0 $787,207.0 $813,577.0 $841,086.0 $901,604.0 $1,044,220 $1,266,316 $1,227,744 $1,331,376 $1,098,822 $1,081,741 $1,155,329 2024 Water Sales $912,498.0 $852,016.0 $881,079.0 $864,955.0 $930,910.0 $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. $1,249,252. $1,039,421. $1,064,341. $1,341,734. $1,257,370. $1,358,417. $1,622,939. $1,420,962. $-
$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 2023 Sewer Sales $2,184,085. $2,111,381. $2,110,125. $2,219,973. $2,142,863. $2,172,890. $2,243,741. $2,202,859. $2,264,521. $2,243,821. $2,233,990. $2,260,801. 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. $1,900,000.00
$2,000,000.00
$2,100,000.00
$2,200,000.00
$2,300,000.00
$2,400,000.00
$2,500,000.00
Dollars ($)
Annual Sewer Sales
6 B. Aging
The total aging balance has decreased by 8.3%, see first table below. For balances >30-days only, water has decreased 3.1% and wastewater has increased by 17.4%. Sewer gaining balances are expected to continue rising until tax roll in year 2026.
$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
$4,000,000.00
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Aging Balances in Dollars ($)
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Water $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 $1,487,957.5 $1,432,711.8 $1,518,645.5 $2,039,090.8 $1,720,916.8 Sewer $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 $3,719,707.7 $3,484,523.2 $2,007,183.0 $2,577,088.9 $2,513,640.5 Historical Aging Totals
Water and Sewer
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
$2,000
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Thousands
Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Water $306,205 $385,519 $470,281 $570,310 $601,520 $396,891 $478,675 $359,409 $396,223 $485,523 $578,110 $683,117 $661,838 Sewer $638,310 $759,956 $938,055 $1,096,56 $1,180,22 $1,365,28 $1,421,88 $1,580,60 $1,793,22 $1,813,32 $538,015 $676,294 $793,637 Aging Balances Over 30 Days Water and Sewer
(April 2021 forward contains both consumption and meter charges)
7 C. Bad Debt
Thirteen (13) accounts were sent to collections for a total amount of $3,347.45. These bad debts arise from customers moving out or selling the property and not closing the account with final payments.
VI. SERVICE ORDERS
357 service orders were initiated by the customer service team during the reporting month. Of this total, 60 service orders or 17% were due to occupant changes. 207 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
One (1) CS team member is currently out on disability. In anticipation, temporary employee was hired and trained during May. This team member is expected to return to the office during the month of November.
CS team has been working with City’s Staff to accommodate meter roll out for Lennar Developer. There has been increase in turnaround time for the new meters due to international trade situations.
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 September 2025 is $4,642,000 whereas Non-Rate Revenue is $ 144,000; Utility Revenue is $4,432,000 and Tax / Ambulance Revenue at $66,000.
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 September 2025 and September 2024 are $61,000 and $221,000 respectively. The large variance in collection of UUT charges is due to the City exempting UUT charges to the Residential custo mers beginning January 2025 through December 2025. Ambulance Revenue is also collected on behalf of the City of Rialto totaling $5,000 in September 2025 and $4,000 in September 2024.
8 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).
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, 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 September 23, 2021. This agreement pertains to the use of its interest in the SARI Line and discharge of certain brine w aste 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 September of 2025.
E. Rialto Basin Water Rights and Leasing
9 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.
10 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 SEPTEMBER 2025 %
Carrier Deposits Cash deposits prepared per day for transport to US Bank. 21 $ 155,654 3.39% Remote Deposits Scanned batches of checks payments made at the customer service counter 21 686,008 14.92% EBOX Batches of electronic customer payments posted
to customer accounts at US Bank. 21 367,169 7.99%
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
14,891 2,370,061 51.56%
Lockbox Deposits Batches of customer payments mailed in to US Bank's lockbox 21 1,003,875 21.84% Pay Near Me
Cash payment service that allows customers to pay
at a local 7-Eleven, CVS, Walmart or Family Dollar
stores. 107 14,142 0.31% Total Revenue per Bank $ 4,596,910 100.00% Recon to RUA Recap:
Adj detailed in RUA 44,965
Prior mo. Correction
RUA increase in Cash $ 4,641,874
11 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 Total %
Carrier Deposits 144,793$ 140,286$ 155,654$ 440,732$ 3.56% Remote Deposits 499,489 241,420 686,008 1,426,917$ 11.51% EBOX 407,888 286,741 367,169 1,061,798$ 8.57% Paymentus, IVR, Credit Cards 2,118,383 1,853,657 2,370,061 6,342,101$ 51.17% Lockbox Deposits 1,176,928 904,658 1,003,875 3,085,461$ 24.89% Pay Near Me 11,821 11,616 14,142 37,580$ 0.30% Total Revenue to Bank 4,359,302$ 3,438,377$ 4,596,910$ 12,394,589$ 100.00% NSF (10,757) (15,745) (17,442) (43,943)$ Net deposits 4,348,546$ 3,422,632$ 4,579,468$ 12,350,646$ Sept 2025 Sept 2024 Variance
UUT Water 25,641$ 75,736$ (50,095)$
UUT Sewer 35,146 145,004 (109,857)
Ambulance 5,538 4,632 906
Total 66,325$ 225,371$ (159,046)$
Sept 2025 Sept 2024 Variance
Non-Rate / Extra Territorial
Revenue 143,717$ 189,913$ (46,196)$
Utility Revenue 4,431,832$ 3,061,313$ 1,370,520
Total 4,575,549$ 3,251,226$ 1,324,324$
12 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 Total
Non-Rate Revenue
Cell Tower Rent,Llease 21,485 17,154 15,080 53,719 Interest Income - - - -
NRR-FOG - - - -
Municipal Water Sales - - - - Extra Terr- Sewage 169,483 6,711 107,820 284,014 Abatement of Expenses - - - - Water Meter Lost/Damaged/Repl 22,650 17,176 13,295 53,121 Misc Fees - New Occ., Same Day Svc 10,815 7,182 7,522 25,518 Miscellaneous Revenue - Sewer - - - -
NSF - - - -
Total Non-Rate Revenue 224,433$ 48,223$ 143,717$ 416,373 Utility Revenue
Water Penalty 30,460 33,752 31,754 95,966 Sewer Penalty 74,191 48,802 42,100 165,094 Turf Removal, Hi-Eff Rebate (100) - - (100) Water Deposits Billed 16,142 15,863 16,027 48,032 Hydrant Deposits 315 158 161 634 Sewer Deposits Paid - - - - Sewer Deposits Billed 16,204 16,667 15,480 48,351 Water 1,329,427 1,148,584 1,723,704 4,201,714
Sewer 2,760,649 1,949,745 2,492,623 7,203,016
Unapplied Credits 26,588 50,012 109,984 186,584 Bad Debt Sewer - - - - Bad Debt Water - - - - Tax Roll Sewer - - - - Collection Agency - Water - - - - Collection Agency - Sewer - - - - Collection Agency - Misc Water - - - - Total Utility Revenue 4,253,876$ 3,263,582$ 4,431,832$ 11,949,291$ Total Non-Rate + Utility Rev. 4,478,309 3,311,805 4,575,549 12,365,664 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
Sept 2025 4,641,874 16,690 2,571,308 2,053,877 4,641,874 (44,965) 4,596,910 Sept 2024 3,476,597 8,913 2,199,899 1,267,785 3,476,597 96,617 3,573,214
13 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 negative balance reflects an early payment.
Social Science Service (Cedar House) balance reflects current service fees.
City of Fontana is being contacted for past due balances.
Colton Unified School District is current with its obligations.
County of San Bernardino has been contacted for past due balance.
Rialto Bioenergy Solutions is current with its obligations.
Vertical Bridge Holdco, LLC and Sprint: Vertical Bridge and Sprint have been contacted for open Invoices as well.
Name
Total as of
9/30/2025 Current 31 to 60 days 61 to 90 days >90 days
AT&T - Easton (1,500)$ (1,500)
Cedar House 10,992 10,992
CITY OF FONTANA 262,364 131,182 131,182 Colton Unified School District 5,571 5,571 County of San Bernardino-CSA 70 BL 20,948 20,948 Rialto BioEnergy Facilities -
Sprint-Nextel 5,530 2,074 3,456 San Bernardino Co Waste System Div -
SB Valley Mun Water District -
Vertical Bridge Holdco, LLC (CIG) 4,714 4,714 Grand Total 308,618$ 146,245$ 2,074$ 152,130$ 8,170$
RIALTO WASTEWATER
MONTHLY OPERATIONS REPORT
Reporting Period:
September 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 one 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.”
26,748 25,175 189,003
Sanitary sewers assessed using the SL-RAT
method, feet 0 0 21,112
CCTV Inspection, miles (26 is the annual goal)* 3.49 2.36 20.78 Manhole Inspections 1 3 39
USA Dig Alert Markings, count 18 47 306
Residential call-outs 3 3 21
Sanitary sewer overflows 0 1 2
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:
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 0
Lost Time Incidents count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 20
Vehicle Incidents, count 0
*A lost time incident has not occurred since 9-3-2020, totaling 1,852 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 12.94.5 1,526.71 10,013.63
10,245.84
b. Monthly Chemical Consumption
Chemical Current Month
Gallons Used
Prior Month
Gallons Used
Sodium Hypochlorite, Tertiary Disinfection 31,139 31,456 Sodium Bisulfite, Discharge Dechlorination 10,584 11,407 Ferrous Chloride, Digester Gas Conditioning 5,139 4,812 Polymer, Gravity Belt Thickener 472 474
Polymer, Belt Filter Press 688 762
Alum, Tertiary Filters 0 1
c. Monthly Utilities Consumption
Utility Current Month
Statistics
Prior Month Statistics
Electricity WWTP, KWH 400667 367306 Electricity Lilac LS, KWH 787
Electricity Sycamore LS, KWH 400
Electricity Ayala LS, KWH 4195
Electricity Agua Mansa LS, KWH 2809
Electricity Cactus LS, KWH 1488
Electricity Ramrod LS, KWH 767
Frisbee Park LS, KWH 449
El Rancho Verde LS, KWH 2207
Natural Gas WWTP, Therms 3580
* LS is in bypass mode, pending CIP completion
** SCE has not updated this account.
6. Odor Complaints Received/Actions Taken
None
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
None
b. Government agency environmental, health, or safety tests/monitoring Permit testing was completed for this month
c. Government agency notices of violation received
Received Notice of Violation from the Regional Water Quality Control Board for self-reported violations for the time period 2009 - 2024
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
9/1/2025 1570 N Pine Report of water in the street with strong sewer odor.
Checked upstream and down stream MH's. No signs of
sewer smell or sewer back up. Courtesy cleaned
performed.
ET
9/6/2025 2395 W Sunrise Dr Resident called to report the women’s bathroom at Fergusson Park was clogged. Public works called to
respond
JV
9/8/2025 315 N Linden SSO reported at apartments, area cleaned and sewer line jetted.
JV
Table 1 Summary
Table1 Summary
September 2025
Rialto Rialto Rialto Rialto Rialto
Flow Effluent
Flow
BOD 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 % 9/1/2025 7.04 7.30
9/2/2025 7.62 6.86
9/3/2025 6.81 7.89 300 300 17,039 6.0 394.82 98.00 290.00 16471.00 1.00 66.00 99.70 9/4/2025 7.43 7.18
9/5/2025 7.23 7.42 240 240 14,472 3.9 241.34 98.40
9/6/2025 6.91 7.32
9/7/2025 7.01 7.08
9/8/2025 7.33 7.46
9/9/2025 6.95 7.03 360 360 20,867 3.3 193.48 99.10 230.00 13331.00 1.00 59.00 99.60 9/10/2025 7.15 7.12
9/11/2025 6.96 7.24
9/12/2025 6.99 7.41 280 280 16,323 2.5 154.50 99.10
9/13/2025 6.93 6.80
9/14/2025 7.17 7.43
9/15/2025 7.21 7.31 300 300 18,039 2.8 170.70 99.10 210.00 12628.00 1.00 61.00 99.50 9/16/2025 6.62 7.53
9/17/2025 7.63 7.09
9/18/2025 7.40 7.32
9/19/2025 7.10 7.28 260 260 15,396 <2.5 151.79 99.00
9/20/2025 7.09 7.49
9/21/2025 6.91 6.96
9/22/2025 7.72 7.30 350 350 22,535 <2.5 152.21 99.30 250.00 16096.00 1.00 61.00 99.60 9/23/2025 6.47 7.53
9/24/2025 6.94 6.97
9/25/2025 6.93 6.95
9/26/2025 6.96 6.95 340 340 19,736 <5.0 289.82 98.50
9/27/2025 6.77 7.37
9/28/2025 6.74 7.14
9/29/2025 7.09 7.05 300 300 17,739 <2.5 146.99 99.20 250.00 14783.00 1.00 59.00 99.60 9/30/2025 6.98 7.44
Minimum 6.47 6.80 240 240 14,472 <2.5 146.99 98.00 210.00 12628.00 1.00 59.00 99.50 Maximum 7.72 7.89 360 360 22,535 6.0 394.82 99.30 290.00 16471.00 1.00 66.00 99.70 Total 212.09 217.22 2,730 2,730 162,145 <31.0 1895.64 889.70 1230.00 73309.00 5.00 305.00 497.90 Average 7.07 7.24 303 303 18,016 <3.4 210.63 98.90 246.00 14662.00 1.00 61.00 99.60 Rialto WRF\Effluent Rialto WRF\Influent Rialto WRF\Effluent
Table 2 Summary
Table 2 Summary
September 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 9/1/2025 1625.00 827.00
9/2/2025 1622.00 782.00
9/3/2025 1402.00 768.00
9/4/2025 1420.00 803.00
9/5/2025 1591.00 769.00
9/6/2025 1350.00 765.00
9/7/2025 1398.00 719.00
9/8/2025 1510.00 740.00
9/9/2025 1422.00 774.00 750 19.0 500.00 520.00 470.00 38.00 4.60 9/10/2025 1672.00 764.00
9/11/2025 1588.00 739.00
9/12/2025 1428.00 767.00
9/13/2025 1468.00 781.00
9/14/2025 1453.00 825.00
9/15/2025 1550.00 816.00
9/16/2025 1343.00 814.00
9/17/2025 1248.00 804.00
9/18/2025 1523.00 804.00
9/19/2025 1505.00 798.00
9/20/2025 1298.00 822.00
9/21/2025 1368.00 817.00
9/22/2025 1516.00 824.00
9/23/2025 1565.00 822.00
9/24/2025 1418.00 810.00
9/25/2025 1539.00 800.00
9/26/2025 2023.00 791.00
9/27/2025 1320.00 818.00
9/28/2025 1492.00 810.00
9/29/2025 1600.00 800.00
9/30/2025 1616.00 850.00
Minimum 1248.00 719.00 750 19.0 500.00 520.00 470.00 38.00 4.60 Maximum 2023.00 850.00 750 19.0 500.00 520.00 470.00 38.00 4.60 Average 1496.00 794.00 750 19.0 500.00 520.00 470.00 38.00 4.60 Rialto WRF\Effluent Rialto WRF\Eff Rialto WRF\Effluent
Table 3 Summary
Table 3 Summary
September 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 9/1/2025 7.58 7.20 29.60 <1.8 <1.80 144276.00 144276.00 1100.00 144276.00 9/2/2025 7.42 7.20 30.00 <1.8 <1.80 136104.00 136104.00 1300.00 136104.00 9/3/2025 7.29 7.41 30.10 0.06 <1.8 <1.80 192967.00 192967.00 1400.00 192967.00 9/4/2025 7.57 7.38 30.10 <1.8 <1.80 111976.00 111976.00 20300.00 111976.00 9/5/2025 7.41 7.35 29.80 <1.8 <1.80 146341.00 146341.00 20700.00 146341.00 9/6/2025 7.51 7.31 29.60 <1.8 <1.80 94674.00 94674.00 2100.00 94674.00 9/7/2025 7.33 7.39 29.70 <1.8 <1.80 114938.00 114938.00 2800.00 114938.00 9/8/2025 7.45 7.40 29.60 <1.8 <1.80 105442.00 105442.00 3300.00 105442.00 9/9/2025 7.14 7.34 29.50 0.06 <1.8 <1.80 <5.00 116881.00 116881.00 3200.00 116881.00 9/10/2025 7.38 7.25 29.40 <1.8 <1.80 115638.00 115638.00 22300.00 115638.00 9/11/2025 7.57 7.26 29.30 <1.8 <1.80 120170.00 120170.00 23200.00 120170.00 9/12/2025 7.68 7.27 29.20 <1.8 <1.80 126331.00 126331.00 24000.00 126331.00 9/13/2025 7.56 7.26 29.00 <1.8 <1.80 120517.00 120517.00 16200.00 120517.00 9/14/2025 7.67 7.28 29.00 <1.8 <1.80 113119.00 113119.00 2600.00 113119.00 9/15/2025 7.45 7.32 29.30 0.07 <1.8 <1.80 111356.00 111356.00 2100.00 111356.00 9/16/2025 7.40 7.35 29.30 <1.8 <1.80 130000.00 130000.00 1600.00 130000.00 9/17/2025 7.19 7.33 29.80 <1.8 <1.80 129769.00 129769.00 1800.00 129769.00 9/18/2025 7.14 7.35 29.70 <1.8 <1.80 120565.00 120565.00 20500.00 120565.00 9/19/2025 7.39 7.36 29.60 <1.8 <1.80 139770.00 139770.00 23500.00 139770.00 9/20/2025 7.49 7.33 29.50 <1.8 <1.80 129515.00 129515.00 19500.00 129515.00 9/21/2025 7.55 7.36 29.20 <1.8 <1.80 137739.00 137739.00 5200.00 137739.00 9/22/2025 7.42 7.37 29.40 0.06 <1.8 <1.80 113557.00 113557.00 1200.00 113557.00 9/23/2025 6.83 7.40 29.50 <1.8 <1.80 127139.00 127139.00 1300.00 127139.00 9/24/2025 7.38 7.36 29.50 <1.8 <1.80 165433.00 165433.00 1400.00 165433.00 9/25/2025 7.51 7.34 29.40 <1.8 <1.80 114396.00 114396.00 3900.00 114396.00 9/26/2025 7.36 7.31 29.10 <1.8 <1.80 136444.00 136444.00 16800.00 136444.00 9/27/2025 7.35 7.27 28.70 <1.8 <1.80 129945.00 129945.00 20300.00 129945.00 9/28/2025 7.21 7.28 28.70 <1.8 <1.80 139579.00 139579.00 16900.00 139579.00 9/29/2025 7.80 7.31 28.80 0.07 <1.8 <1.80 122529.00 122529.00 22300.00 122529.00 9/30/2025 7.85 7.29 28.80 <1.8 <1.80 142812.00 142812.00 14400.00 142812.00 Minimum 6.83 7.20 28.70 0.06 <1.8 <1.80 <5.00 94674.00 94674.00 1100.00 94674.00 Maximum 7.85 7.41 30.10 0.07 <1.8 <1.80 <5.00 192967.00 192967.00 24000.00 192967.00 Average 7.43 7.32 29.40 0.06 <1.8 <1.80 <5.00 128331.00 128331.00 10573.00 128331.00 Rialto WRF\Influent Rialto WRF\Effluent Rialto WRF\Eff Rialto WRF\Effluent
Monthly Sewer Line Cleaned