attachment-4-rfp-des-2026-14.pdf
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- Attached to
- Wastewater Flow Metering Services
- Solicitation number
- RFP DES 2026-14
- Issued by
- Belknap County, New Hampshire
About this file
This is a Flow Monitoring Report for May 2025 prepared for the Winnipesaukee River Basin Program (WRBP) by EST Associates Inc., documenting wastewater flow metering services across the collection system in New Hampshire. The report includes comprehensive flow monitoring data from eleven flow monitoring locations and four rain gauge stations throughout the WRBP service area, which encompasses multiple municipalities including Laconia, Franklin, Tilton, Sanbornton, and Belmont. The monitoring locations range from small tributary systems handling approximately 36,000 to 50,000 gallons per day to major trunk lines processing several million gallons daily, with the Franklin Wastewater Treatment Plant (STP-1) serving as the largest facility at approximately 7.8 million gallons per day average flow. Data quality assessments for each location are provided with classifications ranging from "Excellent" to "Some Limitations," with most meters operating at 100 percent uptime during the reporting period.
The report presents detailed daily flow data, peak flow information, groundwater infiltration analysis, and meteorological data from the four rain gauge stations distributed across the service area. Total monthly flows across all monitored locations aggregated to approximately 284.9 million gallons in May 2025, with individual location flows documented in comprehensive tables and accompanied by site investigation reports, photographs, field calibration data, and equipment specifications. Flow measurement equipment includes ISCO 2150 Area/Velocity sensors, ISCO 2110 Ultrasonic sensors, and various flume configurations (Palmer-Bowlus, Parshall, and Trapezoidal), with most sensors cleaned and serviced during the June 2, 2025 maintenance visit. The report includes a WRBP collection system flow diagram showing the hydraulic relationships between monitoring points and a data quality summary table indicating sensor performance and data reliability metrics for operational assessment and compliance documentation.
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| rfp-des-2026-14--1-.pdf | ||
| attachment-7-rfp-2026-des-14.xlsx | XLSX spreadsheet | |
| attachment-6-rfp-des-2026-14.xlsx | XLSX spreadsheet | |
| attachment-5-rfp-des-2026-14.pdf | ||
| attachment-3-rfp-des-2026-14--1-.pdf | ||
| attachment-1-rfp-des-2026-14.pdf | ||
| attachment-2-rfp-des-2026-14.pdf | ||
| addendum-1-rfp-des-2026-14.pdf |
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Text version
Flow Monitoring Report
May 2025
Prepared For:
The Winnipesaukee River Basin Program (WRBP)
Prepared by:
EST Associates Inc.
124 Crescent Road, Needham, MA
02494 Tel: (781) 455-0003 ESTAssociates.com
General Summary
This report includes flow monitoring data from eleven (11) flow monitoring locations within the WRBP collection system along with data generated from four
(4) rain gauges also located within the study area.
A Data Quality Summary Table is provided in order to present an overview regarding the general quality of the data presented in this report. This summary provides classifications of data quality (excellent, good, some limitations, poor), along with indicators directly related to quality objectives.
Each tab in this report represents one flow monitoring location. A separate tab includes all of the data associated with the four (4) rain gauges. Detailed information is provided for each monitoring location including: flow summary reports, picture sheets, site investigation reports, graphs, tables, and field calibration reports.
Flow Monitoring Data is provided for the following locations:
1. McIntire Circle - Lake Street, Laconia, NH
2. ML 1 - Needle Eye Road, Laconia, NH
3. Oxbow, 403 Weirs Road, Laconia, NH
4. STP 1, River Street Ext, Franklin, NH
5. TF 1, 636 Central Street, Tilton, NH
6. Tilton Main Street, 298 Main Street, Tilton, NH
7. TS 1, Lower Bay Road, Sanbornton, NH
8. Belmont Beach, Belmont, NH
9. GL-1, Gilford, NH
10. Opechee Bay, Laconia, NH
11. Soda Brook Homes, Belmont, NH
Rain Gauge Data is provided for the following locations:
1. Belmont Street Pump Station
2. Maiden Lady Cove Pump Station
3. River Street Pump Station
4. Winnasquam Pump Station
Location
Data Quality
(Excellent/Good
/ Some
Limitations/
Poor)
Meter
Uptime
Significant
Level
Adjustment
AV Sensor
(>0.25")
Significant
Level
Adjustment
US Sensor
(>0.25")
Velocity
Dropouts
Observed
(>60 min)
Clear/
Consistant
Diurnal
Pattern
Observed
(Yes/No)
Velocity
Scatterplot
Deviations
Within Range
(Yes/No)
Level Sensor
Used for
Flow
Calculation
(AV/US)
McIntire
Circle Excellent 100% N/A No N/A Yes N/A US
ML1 Some Limitations 100% No N/A Yes Yes No AV
Oxbow Good 100% No No N/A Yes N/A AV
STP-1 Excellent 100% No No No Yes Yes AV
TF-1 Some Limitations 92% No No N/A No N/A AV
Tilton Main
Street Excellent 100% No No N/A Yes N/A AV
TS1 Excellent 100% No No N/A Yes N/A US
Belmont
Beach Excellent 100% No No No Yes Yes AV
GL1 Excellent 100% No N/A No Yes No AV
Opechee
Bay Good 100% No No No No No AV
Soda Brook
Homes Some Limitations 100% No N/A Yes No No AV
Notes: ** Indicates that a Manning Equation / Data Correction was required this month for calculating flow
WRBP DATA QUALITY SUMMARY TABLE
Flow Meter Summary Report – McIntire
Location ID: McIntire
Description: Sewer MH located on Lake Street, Laconia, NH Equipment: ISCO 2110 Ultrasonic Sensor.
Equipment US Sensor
Date of Installation 10/17/2016
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level: Ultrasonic
Average Daily Flow (gal): 232,660 Average Base Flow (gal): 217,416 Average Daily Sanitary Flow (gal/day): 99,895 Non-Rainfall GW Infiltration (gal/day): 117,521 Minimum Sanitary Flow (gal/day): 11,987 Minimum Base Flow (gal/day): 129,509 Peak 15-Min Flow Depth (in): 4 Peak 15-Min Flow Volume (gal): 405 Minimum 15-Min Flow Depth (in): 2 Minimum 15-Min Flow Volume (gal): 70
Current Full Pipe Capacity (gal/day) (1)
: 723,400
Total Monthly Flow (gal): 7,212,460
(1) Full pipe capacity calculation is based on the maximum capacity of the primary measuring device (flume) on site
Notes/Observations:
• The Ultrasonic sensor was used for flow calculations this month
Outside View Down Hole View
Downstream View Upsteam View
McIntire Circle Meter - WRBP
124 Crescent Road, Needham, MA 02494 tel: 781-455-0003 fax: 781-455-8336
Environmental Monitoring
Pipeline Services
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 14.5" 14.5"
Material PVC PVC
Debris / /
Shape Circle Circle
Depth 15'10" 15'9"
FLUME INFORMATION
Flume Type:
Width:
McIntire Circle
10/17/2016
8:00 AM
Lake Street at Shaw's Grocery Store, Lanconia, NH
Palmer-Bowlus
10"
SITE INVESTIGATION FORM
SITE LOCATION
PLAN VIEW
PROFILE VIEW
43.56446, -71.44824
Shaw’s 1400 Lakeshore Drive
L a k e S tre e t
US1DS
U.S.
Sensor
Sensor
DS US1
Date Peaking
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of Maximum
Flow Rate Total Flow gph/gal
5/1/2025 12:00 PM 185 0.001 138 87 2:15 AM 209 1:00 PM 199,382
5/2/2025 1:00 PM 182 0.001 142 93 4:00 AM 204 1:15 PM 203,769
5/3/2025 5:00 PM 185 0.001 136 82 2:30 AM 197 8:30 PM 195,717
5/4/2025 12:00 PM 197 0.001 143 88 3:15 AM 226 12:15 PM 206,273
5/5/2025 10:00 AM 237 0.001 168 94 1:30 AM 351 10:15 AM 241,622
5/6/2025 6:00 PM 215 0.001 170 111 5:15 AM 239 12:45 PM 244,313
5/7/2025 3:00 PM 207 0.001 173 118 2:45 AM 226 9:45 AM 249,098
5/8/2025 10:00 AM 208 0.001 169 118 2:30 AM 222 11:45 AM 244,019
5/9/2025 7:00 PM 250 0.001 190 126 3:00 AM 270 8:00 PM 273,729
5/10/2025 11:00 AM 364 0.002 260 161 3:30 AM 405 12:45 PM 375,098
5/11/2025 10:00 AM 275 0.001 211 152 11:45 PM 307 10:15 AM 303,737
5/12/2025 9:00 AM 235 0.001 192 136 2:00 AM 271 1:00 PM 275,813
5/13/2025 1:00 PM 206 0.001 173 124 5:30 AM 228 7:15 PM 248,465
5/14/2025 10:00 AM 200 0.001 158 102 2:30 AM 223 8:30 PM 227,219
5/15/2025 2:00 PM 189 0.001 154 97 5:00 AM 209 2:45 PM 221,555
5/16/2025 12:00 PM 201 0.001 148 86 4:15 AM 213 5:15 PM 213,364
5/17/2025 8:00 PM 210 0.001 154 77 1:45 AM 230 8:15 PM 221,454
5/18/2025 10:00 AM 224 0.001 162 114 12:00 AM 239 11:30 AM 233,674
5/19/2025 12:00 PM 196 0.001 153 94 2:30 AM 216 12:30 PM 220,072
5/20/2025 12:00 PM 191 0.001 145 88 1:00 AM 227 12:15 PM 209,231
5/21/2025 2:00 PM 192 0.001 141 80 5:00 AM 206 2:45 PM 202,614
5/22/2025 8:00 PM 172 0.001 136 77 4:00 AM 193 8:30 PM 195,573
5/23/2025 10:00 AM 219 0.001 170 92 12:30 AM 244 1:00 PM 244,643
5/24/2025 12:00 PM 248 0.001 177 102 3:00 AM 261 12:15 PM 254,580
5/25/2025 10:00 AM 224 0.001 163 85 8:00 AM 252 12:45 PM 234,049
5/26/2025 9:00 AM 207 0.001 152 94 3:30 AM 226 11:30 AM 218,444
5/27/2025 10:00 AM 201 0.001 150 80 4:30 AM 220 10:45 AM 216,565
5/28/2025 10:00 AM 191 0.001 141 82 2:30 AM 217 8:00 PM 203,234
5/29/2025 12:00 PM 182 0.001 138 70 4:15 AM 229 12:15 PM 198,195
5/30/2025 9:00 AM 181 0.001 137 71 3:15 AM 226 8:00 PM 196,845
5/31/2025 11:00 AM 236 0.001 167 77 3:00 AM 263 5:00 PM 240,112
Peaking Hourly Flow
Monthly Data Summary McIntire Circle (Ultrasonic)
Flow Meter Summary Report – ML 1
Location ID: ML 1
Description: Sewer manhole located on Needle Eye Road, Laconia, NH Equipment: ISCO 2150 Area/Velocity Sensor, ISCO 2103 Modem Module
Equipment AV Sensor
Date of Installation 10/14/2014
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Some Limitations
Meter Uptime 100%
Data Source for level: AV
Average Daily Flow (gal): 390,765
Average Base Flow (gal): 366,954
Average Daily Sanitary Flow (gal/day): 161,650
Non-Rainfall GW Infiltration (gal/day): 205,304
Minimum Sanitary Flow (gal/day): 19,398
Minimum Base Flow (gal/day): 224,702
Peak 15-Min Flow Depth (in): 12
Peak 15-Min Flow Velocity (ft/s): 2
Peak 15-Min Flow Volume (gal): 552
Minimum 15-Min Flow Depth (in): 6
Minimum 15-Min Flow Velocity (ft/s): 1
Minimum 15-Min Flow Volume (gal): 114
Current Full Pipe Capacity (gal/day) (1)
: 6,630,000
Total Monthly Flow (gal): 12,113,700 (1)
Calculated using a Manning Formula
• The AV sensor was used for flow calculations this month
• Periods of velocity dropouts occurred throughout the first half of the month
ML-1 Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 36" 36"
Material RCP RCP
Debris / /
Shape Circle Circle
Depth 9'0" 8'11"
FLUME INFORMATION
Flume Type:
Width:
SITE INVESTIGATION FORM
SITE LOCATION
Maiden Lady Cove Lane, Laconia, NH
ML-1
10/14/2014
43.62689, -71.47418
4:00 PM
US1
PLAN VIEW
PROFILE VIEW
None
Sensor Location
DSUS1
US1 DS
A.V.
Sensor
Factor
Average
Flow Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total
Flow gph/gal
5/1/2025 11:00 AM 248 0.001 186 134 3:45 AM 278 11:15 AM 267,193
5/2/2025 12:00 PM 300 0.001 198 139 2:45 AM 335 12:30 PM 285,404
5/3/2025 11:00 AM 312 0.001 207 114 4:30 AM 364 11:30 AM 298,713
5/4/2025 1:00 PM 273 0.001 197 136 6:00 AM 306 12:00 PM 284,305
5/5/2025 1:00 PM 307 0.001 220 154 4:15 AM 328 1:45 PM 317,356
5/6/2025 2:00 PM 301 0.001 236 160 3:45 AM 325 2:15 PM 339,262
5/7/2025 10:00 PM 320 0.001 265 175 4:30 AM 352 10:45 PM 382,096
5/8/2025 11:00 AM 329 0.001 283 218 4:30 AM 363 12:00 PM 407,041
5/9/2025 9:00 PM 403 0.001 348 271 3:00 AM 413 10:30 PM 501,046
5/10/2025 2:00 PM 508 0.001 430 340 2:00 AM 552 2:45 PM 619,687
5/11/2025 2:00 PM 428 0.001 379 328 6:30 PM 460 12:45 AM 545,170
5/12/2025 9:00 AM 367 0.001 325 243 2:45 AM 411 9:15 AM 467,792
5/13/2025 10:00 AM 352 0.001 297 218 2:15 AM 365 4:30 PM 427,975
5/14/2025 11:00 AM 328 0.001 266 202 2:15 AM 345 11:45 AM 382,720
5/15/2025 11:00 AM 325 0.001 252 181 5:30 AM 340 11:30 AM 362,666
5/16/2025 12:00 PM 306 0.001 242 161 3:00 AM 331 9:30 AM 348,201
5/17/2025 1:00 PM 345 0.001 265 173 4:45 AM 363 1:15 PM 381,651
5/18/2025 10:00 AM 382 0.001 296 225 7:00 AM 435 10:30 AM 426,257
5/19/2025 11:00 AM 314 0.001 258 194 5:00 AM 331 11:45 AM 371,388
5/20/2025 11:00 AM 313 0.001 247 184 3:15 AM 353 11:45 AM 355,663
5/21/2025 11:00 AM 291 0.001 238 174 4:00 AM 312 9:30 AM 342,530
5/22/2025 3:00 PM 286 0.001 232 141 5:30 AM 352 10:15 AM 334,076
5/23/2025 2:00 PM 341 0.001 276 196 1:15 AM 372 2:30 PM 397,655
5/24/2025 11:00 AM 396 0.001 295 209 5:30 AM 415 12:45 PM 424,351
5/25/2025 12:00 PM 350 0.001 273 179 6:30 AM 388 12:15 PM 392,689
5/26/2025 11:00 AM 347 0.001 255 174 4:15 AM 387 11:15 AM 366,954
5/27/2025 10:00 AM 282 0.001 223 155 5:30 AM 339 11:00 AM 320,888
5/28/2025 9:00 PM 337 0.001 241 143 3:45 AM 354 9:30 PM 347,164
5/29/2025 1:00 PM 366 0.001 316 262 5:30 AM 391 1:15 PM 455,715
5/30/2025 12:00 PM 400 0.001 317 195 3:00 AM 434 12:15 PM 456,653
5/31/2025 12:00 PM 429 0.001 350 238 3:00 AM 468 3:30 PM 503,467
Peaking Hourly Flow
ML 1 (AV)
Flow Meter Summary Report – Oxbow
Location ID: Oxbow
Description: Sewer MH located at 403 Weirs Road, Laconia, NH Equipment: ISCO 2150 Area/Velocity Sensor with an ISCO 2110 Ultrasonic Sensor, and a Parshall Flume
Equipment AV/US Sensor
Date of Installation 10/15/14
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced Yes
Data Gaps No
Accuracy Assessment Good
Meter Uptime 100%
Data Source for level (AV/US): AV
Average Daily Flow (gal): 746,101
Average Base Flow (gal): 726,272
Average Daily Sanitary Flow (gal/day): 270,737
Non-Rainfall GW Infiltration (gal/day): 455,535
Minimum Sanitary Flow (gal/day): 32,488
Minimum Base Flow (gal/day): 488,023
Peak 15-Min Flow Depth (in): 20
Peak 15-Min Flow Volume (gal): 1,010
Minimum 15-Min Flow Depth (in): 4
Minimum 15-Min Flow Volume (gal): 80
Current Full Pipe Capacity (gal/day) (1)
: 740,000
Total Monthly Flow (gal): 23,129,100
Oxbow Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 36" 36"
Material RCP RCP
Debris / /
Shape Circle Circle
Depth 17'2" 17'1"
10:10 AM
US1
PLAN VIEW
PROFILE VIEW
Parshall
3"
SITE INVESTIGATION FORM
SITE LOCATION
403 Weirs Road, Lanconia, NH
Oxbow
10/17/2014
43.59502, -71.42954
403 Weirs Road
US1DS
A.V.
Sensor
Sensor
Factor
Average
Flow Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total Flow gph/gal
5/1/2025 12:00 AM 514 0.001 432 119 1:30 AM 632 9:30 PM 621,804
5/2/2025 5:00 PM 561 0.001 450 117 3:45 AM 644 5:45 PM 647,621
5/3/2025 10:00 AM 550 0.001 456 115 6:30 AM 634 2:00 PM 656,361
5/4/2025 12:00 AM 590 0.001 463 128 2:45 AM 683 12:45 PM 666,521
5/5/2025 9:00 AM 634 0.001 483 122 4:15 AM 711 9:45 AM 695,013
5/6/2025 12:00 PM 563 0.001 476 183 5:45 AM 652 12:15 PM 685,664
5/7/2025 10:00 PM 587 0.001 498 218 7:45 AM 649 11:15 AM 716,806
5/8/2025 11:00 AM 585 0.001 488 260 5:15 AM 672 11:30 AM 702,735
5/9/2025 10:00 PM 675 0.001 529 314 6:00 AM 727 10:30 PM 762,040
5/10/2025 2:00 PM 958 0.001 766 458 4:45 AM 1,010 3:15 PM 1,103,710
5/11/2025 12:00 PM 756 0.001 706 550 12:00 AM 827 12:15 PM 1,016,310
5/12/2025 12:00 AM 680 0.001 613 447 3:15 AM 751 12:30 AM 882,010
5/13/2025 11:00 AM 625 0.001 553 308 6:15 AM 689 9:30 AM 796,567
5/14/2025 10:00 AM 613 0.001 522 286 12:45 AM 682 12:45 PM 751,407
5/15/2025 6:00 PM 589 0.001 505 256 8:30 PM 653 2:15 PM 726,882
5/16/2025 11:00 AM 582 0.001 498 191 5:45 AM 657 12:00 PM 716,772
5/17/2025 3:00 PM 581 0.001 501 190 6:45 AM 678 1:00 PM 721,267
5/18/2025 1:00 PM 666 0.001 570 392 6:45 AM 715 12:00 PM 821,313
5/19/2025 10:00 AM 602 0.001 506 253 7:45 AM 687 10:45 AM 728,558
5/20/2025 1:00 PM 576 0.001 487 228 4:15 AM 652 11:00 AM 701,217
5/21/2025 11:00 AM 582 0.001 461 222 7:45 AM 615 12:00 PM 664,086
5/22/2025 1:00 PM 544 0.001 463 148 5:45 AM 646 1:15 PM 666,271
5/23/2025 2:00 PM 668 0.001 558 266 4:30 AM 741 10:45 AM 804,033
5/24/2025 8:00 PM 765 0.001 616 302 6:15 AM 853 10:00 PM 887,523
5/25/2025 9:00 PM 722 0.001 610 259 8:00 AM 826 10:00 PM 878,079
5/26/2025 1:00 PM 691 0.001 542 250 5:00 AM 750 1:45 PM 780,963
5/27/2025 12:00 PM 563 0.001 451 132 5:30 AM 665 12:15 PM 649,113
5/28/2025 3:00 PM 536 0.001 430 124 5:00 AM 634 7:00 PM 619,006
5/29/2025 9:00 PM 605 0.001 434 80 3:15 AM 673 9:15 PM 625,353
5/30/2025 10:00 PM 652 0.001 447 122 5:45 AM 729 10:15 PM 643,869
5/31/2025 1:00 PM 721 0.001 549 81 6:30 AM 809 1:30 PM 790,257
Peaking Hourly Flow
Oxbow (AV)
Flow Meter Summary Report – STP 1
Location ID: STP 1
Description: Sewer MH located at Franklin WWTP, River Street Ext, Franklin, NH
Sensor, ISCO 2103 Modem Module
Date of Installation 10/15/2014
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced Yes
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level (AV/US): AV
Average Daily Flow (gal): 7,836,790
Average Base Flow (gal): 7,459,490
Average Daily Sanitary Flow (gal/day): 2,695,994
Non-Rainfall GW Infiltration (gal/day): 4,763,496
Minimum Sanitary Flow (gal/day): 323,519
Minimum Base Flow (gal/day): 5,087,015
Peak 15-Min Flow Depth (in): 24
Peak 15-Min Flow Velocity (ft/s): 3
Peak 15-Min Flow Volume (gal): 11,084
Minimum 15-Min Flow Depth (in): 13
Minimum 15-Min Flow Velocity (ft/s): 2
Minimum 15-Min Flow Volume (gal): 2,592
Current Full Pipe Capacity (gal/day) (1)
: 54,490,000
Total Monthly Flow (gal): 250,777,000 (1)
STP-1 Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 60" 60"
Material RCP RCP
Debris / /
Shape Circle Circle
Depth 10'3" 10'2"
8:25 AM
US1
PLAN VIEW
PROFILE VIEW
None
SITE INVESTIGATION FORM
SITE LOCATION
End of River Street Extention - Franklin
WWTP,
STP-1
10/15/2014
43.41328, -71.65267
R iv e r S tre e t E x te n s io n
US1
DS
A.V.
Sensor
U.S.
Sensor
Sensor
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total Flow gph/gal
5/1/2025 7:00 PM 4,113 0.001 3,685 2,592 5:45 AM 4,382 7:30 PM 5,306,220
5/2/2025 9:00 PM 4,255 0.001 3,754 2,773 12:30 PM 4,444 10:00 PM 5,405,890
5/3/2025 11:00 PM 4,315 0.001 3,824 2,940 10:30 AM 4,477 8:45 PM 5,507,060
5/4/2025 8:00 PM 4,702 0.001 4,084 3,037 11:30 AM 4,915 9:30 PM 5,880,900
5/5/2025 7:00 PM 5,593 0.001 4,932 3,853 9:30 AM 5,844 7:00 PM 7,101,490
5/6/2025 5:00 PM 5,833 0.001 5,353 4,057 9:45 AM 6,189 7:00 PM 7,707,820
5/7/2025 10:00 PM 5,934 0.001 5,399 4,484 12:15 AM 6,471 10:00 PM 7,774,030
5/8/2025 8:00 PM 5,585 0.001 5,302 4,426 9:00 AM 5,815 8:30 PM 7,635,520
5/9/2025 11:00 PM 7,131 0.001 6,576 4,599 9:00 AM 8,082 5:00 AM 9,469,760
5/10/2025 4:00 PM 10,521 0.001 9,199 7,465 9:30 AM 11,084 5:00 PM 13,247,200
5/11/2025 1:00 AM 9,225 0.001 7,805 6,253 6:00 AM 8,919 5:45 PM 11,239,700
5/12/2025 12:00 AM 7,734 0.001 6,711 5,433 8:15 AM 7,625 6:00 PM 9,663,330
5/13/2025 12:00 AM 6,471 0.001 6,039 5,192 6:00 AM 6,621 5:45 PM 8,695,610
5/14/2025 7:00 PM 6,203 0.001 5,632 4,736 6:00 AM 6,421 7:15 PM 8,110,040
5/15/2025 12:00 AM 5,699 0.001 5,265 4,483 11:30 AM 6,068 10:15 PM 7,581,250
5/16/2025 4:00 PM 5,552 0.001 5,117 4,256 5:45 AM 5,889 8:00 PM 7,368,110
5/17/2025 8:00 PM 6,293 0.001 5,375 4,323 8:00 AM 6,767 8:45 PM 7,740,680
5/18/2025 6:00 PM 6,805 0.001 5,863 4,958 6:30 AM 7,171 7:00 PM 8,442,830
5/19/2025 4:00 PM 6,150 0.001 5,519 4,674 5:45 AM 6,636 8:00 PM 7,947,440
5/20/2025 12:00 AM 5,648 0.001 5,072 4,258 7:00 AM 5,701 7:45 PM 7,303,740
5/21/2025 6:00 PM 5,341 0.001 4,849 4,134 6:45 AM 5,435 7:00 PM 6,982,350
5/22/2025 9:00 PM 5,456 0.001 5,019 4,068 7:15 AM 5,891 2:45 AM 7,228,050
5/23/2025 5:00 PM 6,859 0.001 6,205 5,261 9:45 AM 7,117 5:15 PM 8,935,000
5/24/2025 5:00 PM 6,636 0.001 6,116 5,301 7:30 AM 7,028 4:30 PM 8,806,460
5/25/2025 8:00 PM 6,376 0.001 5,756 4,657 6:15 AM 6,737 4:00 PM 8,288,360
5/26/2025 7:00 PM 6,125 0.001 5,383 4,412 5:15 AM 6,427 6:45 PM 7,751,420
5/27/2025 12:00 AM 5,490 0.001 4,851 3,964 5:30 AM 5,501 5:15 PM 6,984,860
5/28/2025 7:00 PM 5,043 0.001 4,588 3,768 11:00 AM 5,238 5:15 PM 6,606,050
5/29/2025 6:00 PM 5,125 0.001 4,583 3,861 11:15 AM 5,282 6:00 PM 6,599,260
5/30/2025 6:00 PM 5,079 0.001 4,480 3,784 6:15 AM 5,205 6:15 PM 6,451,280
5/31/2025 6:00 PM 7,491 0.001 6,147 3,565 8:45 AM 7,850 8:15 PM 8,851,500
PHF
STP 1 (AV) 7-7
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total Flow gph/gal
5/1/2025 7:00 PM 4,113 0.001 3,689 2,994 7:45 AM 4,382 7:30 PM 5,311,670
5/2/2025 9:00 PM 4,255 0.001 3,731 2,592 5:45 AM 4,444 10:00 PM 5,373,320
5/3/2025 11:00 PM 4,315 0.001 3,755 2,940 10:30 AM 4,477 8:45 PM 5,406,500
5/4/2025 8:00 PM 4,702 0.001 3,971 3,037 11:30 AM 4,915 9:30 PM 5,718,060
5/5/2025 7:00 PM 5,593 0.001 4,738 3,853 9:30 AM 5,844 7:00 PM 6,823,260
5/6/2025 5:00 PM 5,833 0.001 5,194 4,057 9:45 AM 6,189 7:00 PM 7,479,180
5/7/2025 10:00 PM 5,934 0.001 5,480 4,671 9:15 AM 6,471 10:00 PM 7,890,730
5/8/2025 8:00 PM 5,585 0.001 5,254 4,426 9:00 AM 5,815 8:30 PM 7,565,850
5/9/2025 11:00 PM 7,131 0.001 5,923 4,599 9:00 AM 7,361 8:30 PM 8,529,620
5/10/2025 4:00 PM 10,521 0.001 8,933 6,720 12:15 AM 11,084 5:00 PM 12,863,100
5/11/2025 1:00 AM 9,225 0.001 8,225 7,032 9:15 AM 9,919 1:45 AM 11,843,300
5/12/2025 12:00 AM 7,734 0.001 6,953 5,433 8:15 AM 8,131 1:45 AM 10,011,600
5/13/2025 12:00 AM 6,471 0.001 6,174 5,532 8:00 AM 6,729 3:30 AM 8,890,610
5/14/2025 7:00 PM 6,203 0.001 5,752 4,965 11:00 AM 6,421 7:15 PM 8,282,340
5/15/2025 12:00 AM 5,699 0.001 5,361 4,483 11:30 AM 6,068 10:15 PM 7,719,590
5/16/2025 4:00 PM 5,552 0.001 5,165 4,472 11:15 AM 5,889 8:00 PM 7,437,930
5/17/2025 8:00 PM 6,293 0.001 5,111 4,256 5:45 AM 6,767 8:45 PM 7,359,370
5/18/2025 6:00 PM 6,805 0.001 5,931 4,962 11:00 AM 7,171 7:00 PM 8,540,240
5/19/2025 4:00 PM 6,150 0.001 5,610 4,737 9:45 AM 6,636 8:00 PM 8,077,770
5/20/2025 12:00 AM 5,648 0.001 5,178 4,443 9:15 AM 5,743 12:45 AM 7,456,040
5/21/2025 6:00 PM 5,341 0.001 4,921 4,243 11:45 AM 5,435 7:00 PM 7,086,920
5/22/2025 9:00 PM 5,456 0.001 4,767 4,068 7:15 AM 5,658 9:30 PM 6,864,390
5/23/2025 5:00 PM 6,859 0.001 6,050 4,733 12:15 AM 7,117 5:15 PM 8,711,660
5/24/2025 5:00 PM 6,636 0.001 6,147 5,301 7:30 AM 7,028 4:30 PM 8,851,020
5/25/2025 8:00 PM 6,376 0.001 5,886 5,043 7:30 AM 6,737 4:00 PM 8,475,600
5/26/2025 7:00 PM 6,125 0.001 5,507 4,429 10:15 AM 6,427 6:45 PM 7,930,390
5/27/2025 12:00 AM 5,490 0.001 4,994 4,412 5:15 AM 5,734 12:30 AM 7,191,600
5/28/2025 7:00 PM 5,043 0.001 4,615 3,768 11:00 AM 5,238 5:15 PM 6,646,180
5/29/2025 6:00 PM 5,125 0.001 4,583 3,861 11:15 AM 5,282 6:00 PM 6,599,570
5/30/2025 6:00 PM 5,079 0.001 4,529 3,795 11:30 AM 5,205 6:15 PM 6,522,050
5/31/2025 6:00 PM 7,491 0.001 5,395 3,565 8:45 AM 7,850 8:15 PM 7,768,500
Monthly Data Summary
STP 1 (AV)
PHF
Flow Meter Summary Report – TF 1
Location ID: TF 1
Description: Sewer MH located at 636 Central Street, Tilton, NH Equipment: ISCO 2150 Area/Velocity Sensor with an ISCO 2110 Ultrasonic Sensor and a Trapezoidal Flume, ISCO 2103 Modem Module
Date of Installation 10/15/2014
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced Yes
Data Gaps No
Accuracy Assessment Some Limitations
Meter Uptime 92%
Data Source for level (AV/US): AV
Average Daily Flow (gal): 46,685
Average Base Flow (gal): 42,124
Average Daily Sanitary Flow (gal/day): 23,929
Non-Rainfall GW Infiltration (gal/day): 18,195
Minimum Sanitary Flow (gal/day): 2,871
Minimum Base Flow (gal/day): 21,067
Peak 15-Min Flow Depth (in): 7
Peak 15-Min Flow Volume (gal): 72
Minimum 15-Min Flow Depth (in): 2
Minimum 15-Min Flow Volume (gal): 0
Current Full Pipe Capacity (gal/day) (1)
: 220,000
Total Monthly Flow (gal): 1,447,240
(1) Calculated using a Manning Formula
• A continuous period of missing data occurred from 5/24/25 until 5/27/25
TF-1 Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 18" 18"
Material PVC PVC
Debris / /
Shape Circle Circle
Depth 15'3" 15'2"
7:00 AM
US1
PLAN VIEW
PROFILE VIEW
Trapezoidal o Large
SITE INVESTIGATION FORM
SITE LOCATION
636 West Main Street, Tilton, NH
TF-1
10/16/2014
43.44702, -71.62094
US1 DS
A.V.
Sensor U.S.
Sensor
Sensor Location
DSUS1
West Main Street
Factor
Average
Flow Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total
Flow gph/gal
5/1/2025 11:00 AM 29 0.001 22 13 2:15 AM 38 3:15 PM 32,055
5/2/2025 10:00 AM 44 0.001 25 13 3:45 AM 47 10:45 AM 36,559
5/3/2025 4:00 PM 41 0.001 27 13 2:45 AM 71 2:00 PM 38,727
5/4/2025 9:00 AM 34 0.001 24 9 11:15 PM 42 12:45 PM 34,197
5/5/2025 11:00 AM 58 0.001 35 10 12:15 AM 68 4:15 PM 50,498
5/6/2025 8:00 AM 52 0.001 39 25 2:00 AM 62 4:30 PM 55,776
5/7/2025 8:00 AM 45 0.001 33 21 11:45 PM 53 8:45 AM 48,068
5/8/2025 8:00 AM 49 0.001 37 20 1:00 AM 66 12:45 PM 53,880
5/9/2025 9:00 AM 58 0.001 38 24 6:45 AM 68 9:30 AM 54,458
5/10/2025 10:00 AM 57 0.001 37 12 4:15 AM 67 10:15 AM 52,707
5/11/2025 11:00 AM 58 0.001 38 25 4:45 AM 70 10:15 AM 55,417
5/12/2025 9:00 AM 48 0.001 39 29 8:30 PM 56 8:00 AM 55,966
5/13/2025 9:00 AM 51 0.001 39 28 3:00 AM 64 10:00 AM 55,785
5/14/2025 8:00 AM 49 0.001 38 21 7:00 AM 61 8:30 AM 55,000
5/15/2025 10:00 AM 49 0.001 37 22 12:00 AM 67 2:45 PM 53,670
5/16/2025 10:00 AM 54 0.001 29 0 4:00 PM 63 10:15 AM 41,857
5/17/2025 11:00 AM 55 0.001 36 18 3:30 AM 69 11:45 AM 51,342
5/18/2025 8:00 AM 43 0.001 31 18 12:15 AM 53 1:00 PM 45,031
5/19/2025 7:00 AM 43 0.001 31 13 12:00 AM 50 6:15 PM 44,431
5/20/2025 9:00 PM 39 0.001 29 13 12:45 AM 49 9:30 PM 41,244
5/21/2025 4:00 PM 45 0.001 33 19 5:00 AM 50 4:45 PM 47,449
5/22/2025 10:00 PM 44 0.001 34 16 2:45 AM 53 6:15 PM 49,560
5/23/2025 10:00 AM 44 0.001 37 21 11:45 PM 57 9:00 AM 53,619
5/24/2025 5:00 PM 51 0.001 31 0 10:15 PM 62 5:45 PM 44,746
5/25/2025 7:00 AM 36 0.001 17 0 6:15 AM 41 7:45 AM 24,087
5/26/2025 12:00 AM 27 0.001 27 27 12:00 AM 27 12:00 AM 39,351
5/27/2025 4:00 PM 37 0.001 29 16 6:00 PM 45 4:15 PM 41,160
5/28/2025 6:00 PM 44 0.001 34 18 2:30 AM 54 1:15 PM 49,358
5/29/2025 3:00 PM 48 0.001 34 18 5:45 AM 55 3:15 PM 48,740
5/30/2025 9:00 PM 50 0.001 33 19 1:30 AM 72 9:30 PM 47,427
5/31/2025 7:00 PM 45 0.001 31 14 11:45 PM 72 7:45 PM 45,080
Peaking Hourly Flow
TF 1 (AV)
Flow Meter Summary Report – Tilton Main Street
Location ID: Tilton Main Street
Description: Sewer MH located at 298 Main Street, Tilton, NH Equipment: ISCO 2150 Area/Velocity Sensor with an ISCO 2110 Ultrasonic Sensor and a Parshall Flume, ISCO 2103 Modem Module, EST-229 LTE
Modem
Date of Installation 10/16/2014
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level (AV/US): AV
Average Daily Flow (gal): 321,294
Average Base Flow (gal): 273,671
Average Daily Sanitary Flow (gal/day): 182,396
Non-Rainfall GW Infiltration (gal/day): 91,275
Minimum Sanitary Flow (gal/day): 21,887
Minimum Base Flow (gal/day): 113,163
Peak 15-Min Flow Depth (in): 12
Peak 15-Min Flow Volume (gal): 844
Minimum 15-Min Flow Depth (in): 2
Minimum 15-Min Flow Volume (gal): 45
Current Full Pipe Capacity (gal/day) (1)
: 2,520,000
Total Monthly Flow (gal): 9,960,110
• The Ultrasonic meter did require a level adjustment from 4.36 inches to 4.75 inches
Tilton Main Street Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 18" 18"
Material RCP Brick
Debris / /
Shape Circle Circle
Depth 7'10" 7'9"
9:45 AM
US1
PLAN VIEW
PROFILE VIEW
Parshall
6"
SITE INVESTIGATION FORM
SITE LOCATION
298 Main Street, Tilton, NH
Tilton Main Street
10/16/2014
43.44279, -71.59096
M a in
S tre e t
US1 DS
A.V.
Sensor U.S.
Sensor
Sensor
DSUS1
Factor
Average
Flow Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total
Flow gph/gal
5/1/2025 7:00 AM 196 0.001 119 63 12:15 AM 331 7:30 AM 170,933
5/2/2025 8:00 AM 154 0.000 104 45 1:00 AM 175 8:30 AM 150,252
5/3/2025 3:00 PM 166 0.001 105 46 1:45 AM 215 3:00 PM 151,230
5/4/2025 10:00 AM 178 0.001 119 57 4:00 AM 239 11:00 AM 171,346
5/5/2025 7:00 AM 278 0.001 215 96 1:15 AM 310 7:30 AM 309,926
5/6/2025 4:00 PM 439 0.001 281 160 1:30 AM 507 4:00 PM 404,479
5/7/2025 10:00 AM 351 0.001 305 233 10:45 PM 393 3:15 PM 438,495
5/8/2025 7:00 AM 295 0.001 249 187 4:45 AM 318 1:30 PM 358,440
5/9/2025 7:00 PM 498 0.002 352 203 3:00 AM 523 7:45 PM 506,202
5/10/2025 10:00 AM 797 0.002 647 381 7:30 PM 844 10:45 AM 931,058
5/11/2025 12:00 AM 491 0.002 431 300 10:45 PM 541 7:45 AM 621,206
5/12/2025 8:00 AM 368 0.001 318 231 11:45 PM 389 8:45 AM 458,582
5/13/2025 6:00 AM 294 0.001 257 183 11:45 PM 325 7:00 PM 369,923
5/14/2025 7:00 AM 279 0.001 226 166 3:45 AM 309 7:30 AM 324,958
5/15/2025 9:00 AM 239 0.001 201 133 2:45 AM 282 2:30 PM 288,814
5/16/2025 8:00 AM 235 0.001 181 115 3:45 AM 272 8:30 AM 260,740
5/17/2025 8:00 PM 424 0.001 200 95 5:15 AM 541 8:00 PM 288,316
5/18/2025 11:00 AM 298 0.001 265 187 12:00 AM 347 10:45 AM 381,076
5/19/2025 8:00 AM 246 0.001 207 155 4:30 AM 323 11:15 AM 297,691
5/20/2025 7:00 AM 239 0.001 186 122 4:30 AM 260 7:30 AM 268,347
5/21/2025 8:00 AM 214 0.001 167 107 3:45 AM 284 8:15 AM 240,226
5/22/2025 8:00 PM 203 0.001 164 100 1:30 AM 235 5:15 PM 235,870
5/23/2025 1:00 PM 310 0.001 252 147 4:45 AM 348 7:30 AM 362,800
5/24/2025 2:00 PM 274 0.001 221 173 4:00 AM 319 8:00 AM 318,616
5/25/2025 10:00 AM 244 0.001 190 139 10:00 PM 295 8:45 PM 273,671
5/26/2025 11:00 AM 199 0.001 164 114 11:30 PM 235 11:45 AM 235,587
5/27/2025 12:00 PM 198 0.001 145 90 1:45 PM 225 12:15 PM 209,375
5/28/2025 8:00 AM 188 0.001 135 86 2:00 AM 221 8:45 AM 194,286
5/29/2025 10:00 AM 168 0.001 122 76 2:30 AM 220 10:45 AM 175,542
5/30/2025 7:00 AM 157 0.000 116 69 4:00 AM 205 1:30 PM 167,613
5/31/2025 7:00 PM 468 0.001 274 89 3:45 AM 524 6:15 PM 394,514
Peaking Hourly Flow
Tilton Main St (AV)
Flow Meter Summary Report – TS 1
Location ID: TS 1
Description: Sewer MH located Lower Bay Road, Sanbornton, NH Equipment: ISCO 2150 Area/Velocity Sensor with an ISCO 2110 Ultrasonic Sensor and a Palmer Bowlus Flume, ISCO 2103 Modem Module
Date of Installation 10/16/2014
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/-0
Data Downloaded Yes
Batteries Replaced Yes
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level (AV/US): Ultrasonic
Average Daily Flow (gal): 36,928
Average Base Flow (gal): 32,977
Average Daily Sanitary Flow (gal/day): 19,624
Non-Rainfall GW Infiltration (gal/day): 13,353
Minimum Sanitary Flow (gal/day): 2,355
Minimum Base Flow (gal/day): 15,707
Peak 15-Min Flow Depth (in): 3
Peak 15-Min Flow Volume (gal): 123
Minimum 15-Min Flow Depth (in): 1
Minimum 15-Min Flow Volume (gal): 5
Current Full Pipe Capacity (gal/day) (1)
: 720,000
Total Monthly Flow (gal): 1,144,760
• The Ultrasonic meter was used for flow calculations this month
TS-1 Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 18" 18"
Material RCP Brick
Debris / /
Shape Circle Circle
Depth 7'10" 7'9"
SITE INVESTIGATION FORM
SITE LOCATION
6 Bay Road, Sanbornton, NH
TS-1
43.50245, -71.51314
Palmer-Bowlus
10"
10/16/2014
12:45 PM
US1
PLAN VIEW
PROFILE VIEW
US1 DS
A.V.
Sensor U.S.
Sensor
Sensor Location
DSUS1
47 River Road
Factor
Average
Flow Rate
Minimum
Flow Rate
Time of
Minimum Flow
Rate
Maximum
Flow Rate
Time of
Maximum
Flow Rate
Total Flow gph/gal
5/1/2025 5:00 PM 30 0.001 19 5 5:00 AM 51 11:30 AM 26,979
5/2/2025 9:00 PM 34 0.001 21 5 3:00 AM 54 9:30 PM 29,996
5/3/2025 11:00 AM 38 0.001 25 5 5:30 AM 54 10:00 AM 36,243
5/4/2025 9:00 AM 38 0.001 23 5 3:30 AM 53 7:30 PM 32,738
5/5/2025 7:00 AM 45 0.001 26 6 4:45 AM 69 7:30 AM 37,779
5/6/2025 5:00 PM 69 0.002 26 5 5:30 AM 95 6:15 PM 37,769
5/7/2025 7:00 PM 29 0.001 20 7 11:00 PM 41 1:30 AM 29,050
5/8/2025 7:00 AM 27 0.001 19 6 12:15 AM 53 12:45 PM 27,247
5/9/2025 7:00 PM 66 0.002 37 5 12:15 AM 85 8:00 PM 53,883
5/10/2025 11:00 AM 110 0.003 57 28 1:00 AM 123 12:00 PM 82,785
5/11/2025 11:00 AM 46 0.001 36 12 8:45 PM 59 6:00 PM 52,343
5/12/2025 11:00 AM 40 0.001 25 7 11:45 PM 59 11:15 AM 36,701
5/13/2025 8:00 PM 29 0.001 22 6 2:00 AM 53 8:45 PM 31,662
5/14/2025 11:00 AM 32 0.001 21 6 5:00 AM 52 11:15 AM 30,792
5/15/2025 9:00 AM 31 0.001 21 6 5:30 AM 47 7:00 AM 30,729
5/16/2025 2:00 PM 30 0.001 23 6 4:15 AM 53 10:45 AM 33,450
5/17/2025 9:00 PM 66 0.002 28 6 6:00 AM 85 10:00 PM 39,623
5/18/2025 9:00 AM 42 0.001 30 8 6:00 AM 58 9:45 AM 42,482
5/19/2025 8:00 AM 31 0.001 22 8 12:30 AM 42 8:15 PM 32,320
5/20/2025 7:00 AM 33 0.001 22 7 4:15 AM 48 2:00 PM 31,098
5/21/2025 10:00 AM 34 0.001 21 7 4:45 AM 42 11:00 AM 30,116
5/22/2025 8:00 PM 33 0.001 22 6 5:15 AM 51 5:45 PM 31,888
5/23/2025 8:00 AM 43 0.001 30 10 5:30 AM 50 3:45 PM 42,649
5/24/2025 11:00 AM 44 0.001 28 7 1:30 AM 52 6:00 PM 40,488
5/25/2025 6:00 PM 40 0.001 27 7 5:15 AM 48 1:30 PM 38,604
5/26/2025 11:00 AM 47 0.001 25 6 5:30 AM 65 11:00 AM 36,356
5/27/2025 9:00 PM 34 0.001 22 6 5:30 AM 58 9:15 PM 31,570
5/28/2025 9:00 PM 29 0.001 19 6 4:15 AM 52 1:15 PM 26,995
5/29/2025 7:00 AM 30 0.001 19 6 6:00 AM 44 2:00 PM 27,923
5/30/2025 8:00 AM 32 0.001 20 6 5:30 AM 43 3:30 PM 28,904
5/31/2025 12:00 PM 83 0.002 37 6 6:15 AM 86 12:45 PM 53,598
Peaking Hourly Flow
TS 1 (Ultrasonic)
Flow Meter Summary Report – Belmont Beach
Location ID: Belmont Beach
Description: Temporary Meter, Belmont, NH
Sensor, ISCO 2103 Modem Module
Date of Installation 10/4/2016
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced Yes
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level (AV/US): AV
Average Daily Flow (gal): 5,783,820
Average Base Flow (gal): 5,588,640
Average Daily Sanitary Flow (gal/day): 2,057,508
Non-Rainfall GW Infiltration (gal/day): 3,531,132
Minimum Sanitary Flow (gal/day): 246,901
Minimum Base Flow (gal/day): 3,778,033
Peak 15-Min Flow Depth (in): 16
Peak 15-Min Flow Velocity (ft/s): 4
Peak 15-Min Flow Volume (gal): 7,533
Minimum 15-Min Flow Depth (in): 8
Minimum 15-Min Flow Velocity (ft/s): 2
Minimum 15-Min Flow Volume (gal): 1,468
Current Full Pipe Capacity (gal/day) (1)
: 65,966,400
Total Monthly Flow (gal): 179,299,000 (1)
• The AV sensor was used for this flow calculations this month
• The Ultrasonic meter did require a level adjustment from 12.09 inches to
12.75 inches
Belmont Public Beach Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, BM, SP
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 60" 60"
Material RCP RCP
Debris / /
Shape Circle Circle
Depth 11'6" 11'5"
10/4/2016
11:34 AM
US1
PLAN VIEW
PROFILE VIEW
None
SITE INVESTIGATION FORM
SITE LOCATION
43 Leslie E. Robert Drive, Belmont, NH
Belmont Public Beach
43.51795, -71.48757
Sensor Location
DS US1
US1DS
U.S.
Sensor
A.V.
Sensor
Le sl ie
E R ob er ts
D ri ve
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of Maximum
Flow Rate Total Flow gph/gal
5/1/2025 1:00 PM 3,367 0.001 2,940 1,468 4:15 AM 4,473 5:40 PM 4,233,320
5/2/2025 2:00 PM 3,553 0.001 2,993 1,542 3:20 AM 4,550 2:50 PM 4,310,390
5/3/2025 2:00 PM 3,582 0.001 3,029 1,695 4:00 AM 4,820 2:40 PM 4,361,370
5/4/2025 3:00 PM 3,551 0.001 3,137 1,755 4:35 AM 4,528 12:10 AM 4,517,460
5/5/2025 1:00 PM 4,097 0.001 3,524 1,570 2:30 AM 5,044 12:15 PM 5,074,970
5/6/2025 9:00 PM 4,330 0.001 3,739 2,079 6:00 AM 5,266 10:40 AM 5,384,640
5/7/2025 4:00 PM 4,493 0.001 3,863 2,077 4:45 AM 5,261 4:25 PM 5,562,910
5/8/2025 2:00 PM 3,961 0.001 3,698 1,965 5:40 AM 5,083 12:45 PM 5,324,440
5/9/2025 9:00 PM 4,982 0.001 4,100 1,982 2:40 AM 5,495 9:05 PM 5,904,070
5/10/2025 2:00 PM 7,166 0.001 5,808 2,976 5:35 AM 7,533 2:15 PM 8,364,090
5/11/2025 2:00 PM 6,138 0.001 5,377 3,497 6:30 AM 6,642 2:40 PM 7,743,510
5/12/2025 11:00 AM 5,124 0.001 4,713 2,785 2:25 AM 5,680 10:35 AM 6,786,190
5/13/2025 1:00 PM 4,768 0.001 4,259 2,654 6:35 AM 5,432 3:10 PM 6,132,680
5/14/2025 11:00 AM 5,052 0.001 4,368 2,453 4:45 AM 5,974 11:25 AM 6,290,330
5/15/2025 3:00 PM 4,488 0.001 4,196 2,825 1:40 AM 5,321 2:40 PM 6,042,890
5/16/2025 1:00 PM 4,631 0.001 4,125 2,402 5:10 AM 5,927 2:00 PM 5,940,460
5/17/2025 5:00 PM 4,506 0.001 4,045 2,220 6:20 AM 5,711 7:50 PM 5,825,340
5/18/2025 2:00 PM 5,245 0.001 4,313 2,778 2:55 AM 5,809 11:50 AM 6,211,140
5/19/2025 11:00 AM 4,525 0.001 3,997 2,562 6:00 AM 5,715 10:45 AM 5,756,370
5/20/2025 1:00 PM 4,056 0.001 3,746 2,150 3:55 AM 4,802 12:25 PM 5,393,840
5/21/2025 1:00 PM 3,987 0.001 3,655 1,907 5:05 AM 5,151 12:55 PM 5,263,510
5/22/2025 9:00 PM 4,195 0.001 3,733 2,135 12:05 AM 5,203 8:30 PM 5,375,010
5/23/2025 9:00 AM 5,080 0.001 4,596 2,345 3:10 AM 6,123 8:45 AM 6,617,980
5/24/2025 2:00 PM 5,150 0.001 4,556 2,714 6:10 AM 5,782 8:00 PM 6,561,080
5/25/2025 2:00 PM 5,041 0.001 4,316 2,430 6:20 AM 5,831 2:20 PM 6,214,500
5/26/2025 1:00 PM 4,905 0.001 4,272 2,528 7:25 AM 5,583 1:35 PM 6,151,290
5/27/2025 1:00 PM 4,214 0.001 3,881 2,246 5:20 AM 5,118 12:40 PM 5,588,640
5/28/2025 2:00 PM 4,280 0.001 3,805 2,174 3:55 AM 5,329 4:50 PM 5,478,840
5/29/2025 12:00 PM 4,393 0.001 3,782 2,203 5:15 AM 5,476 4:05 PM 5,445,920
5/30/2025 2:00 PM 4,103 0.001 3,674 1,881 5:45 AM 5,100 11:30 AM 5,290,840
5/31/2025 8:00 PM 5,300 0.001 4,271 1,979 3:55 AM 5,751 6:15 PM 6,150,510
Monthly Data Summary
BELMONT BEACH (AV)
Peaking Hourly Flow
Flow Meter Summary Report – GL1
Location ID: GL1
Description: Housnell Ave, South of Rt. 11A, Gilford, NH Equipment: ISCO 2150 Area/Velocity Sensor
Date of Installation 6/4/2024
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Excellent
Meter Uptime 100%
Data Source for level: AV
Average Daily Flow (gal): 364,746
Average Base Flow (gal): 286,399
Average Daily Sanitary Flow (gal/day): 90,271
Non-Rainfall GW Infiltration (gal/day): 196,128
Minimum Sanitary Flow (gal/day): 10,833
Minimum Base Flow (gal/day): 206,960
Peak 15-Min Flow Depth (in): 4
Peak 15-Min Flow Velocity (ft/s): 6
Peak 15-Min Flow Volume (gal): 485
Minimum 15-Min Flow Depth (in): 1
Minimum 15-Min Flow Velocity (ft/s): 3
Minimum 15-Min Flow Volume (gal): 105
Current Full Pipe Capacity (gal/day) (1)
: 216,000
Total Monthly Flow (gal): 11,307,100 (1)
GL-1 Meter - WRBP
124 Crescent Road Needham MA, 02494
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 12" 12"
Material PVC PVC
Debris / /
Shape Circle Circle
Depth 11'7" 11'6"
9/3/2024
9:50 AM
US1
PLAN VIEW
PROFILE VIEW
None
SITE INVESTIGATION FORM
SITE LOCATION
303 Gilford Ave
GL-1
43.5307945, -71.4470506
US1 DS
Sensor Location
Sensor
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of Maximum
Flow Rate Total Flow gph/gal
5/1/2025 7:00 AM 357 0.001 307 234 9:45 AM 482 4:15 PM 442,275
5/2/2025 7:00 PM 294 0.001 272 216 5:15 PM 326 9:30 AM 391,121
5/3/2025 10:00 PM 330 0.001 280 235 3:45 PM 354 9:45 PM 403,569
5/4/2025 2:00 AM 328 0.001 291 251 11:15 PM 347 2:45 AM 419,029
5/5/2025 10:00 PM 332 0.001 294 238 1:00 AM 348 11:00 PM 423,404
5/6/2025 6:00 PM 338 0.001 291 235 3:00 PM 368 6:45 PM 419,227
5/7/2025 6:00 PM 336 0.001 302 250 5:30 PM 351 7:45 AM 434,705
5/8/2025 1:00 AM 320 0.001 270 197 2:30 PM 348 2:45 AM 388,514
5/9/2025 10:00 PM 354 0.001 287 226 12:30 AM 396 1:15 PM 413,361
5/10/2025 6:00 PM 453 0.001 359 218 4:45 AM 485 7:30 PM 516,895
5/11/2025 1:00 AM 382 0.001 309 241 5:45 AM 394 7:00 PM 445,040
5/12/2025 2:00 AM 357 0.001 254 164 2:00 PM 374 2:45 AM 366,180
5/13/2025 7:00 AM 269 0.001 225 181 3:30 PM 283 8:00 AM 324,674
5/14/2025 6:00 AM 311 0.001 266 206 1:45 AM 347 7:00 AM 383,300
5/15/2025 8:00 AM 323 0.001 242 179 6:15 PM 449 8:30 AM 348,185
5/16/2025 11:00 AM 311 0.001 227 172 10:00 PM 424 11:30 AM 326,711
5/17/2025 6:00 PM 272 0.001 233 186 5:00 AM 302 9:30 AM 335,214
5/18/2025 1:00 PM 307 0.001 275 231 9:00 PM 346 2:00 PM 395,282
5/19/2025 2:00 AM 279 0.001 210 134 12:30 PM 331 7:45 AM 301,852
5/20/2025 6:00 AM 262 0.001 223 164 3:00 AM 311 9:45 PM 320,603
5/21/2025 11:00 AM 297 0.001 251 186 6:30 AM 430 11:45 AM 361,452
5/22/2025 10:00 AM 295 0.001 255 204 3:00 AM 372 1:30 PM 366,790
5/23/2025 7:00 PM 293 0.001 258 214 1:30 PM 315 8:30 PM 371,759
5/24/2025 1:00 AM 304 0.001 234 173 12:00 AM 340 5:45 AM 337,027
5/25/2025 5:00 PM 282 0.001 235 163 2:30 PM 297 5:30 PM 337,740
5/26/2025 5:00 AM 259 0.001 217 124 11:15 PM 283 10:00 AM 312,578
5/27/2025 2:00 PM 195 0.001 142 105 2:30 AM 310 2:30 PM 204,656
5/28/2025 10:00 AM 171 0.000 157 123 7:45 AM 188 1:45 PM 226,137
5/29/2025 7:00 AM 235 0.001 187 151 2:45 AM 389 7:15 AM 268,960
5/30/2025 4:00 PM 251 0.001 221 156 5:30 AM 322 11:15 AM 317,697
5/31/2025 9:00 AM 345 0.001 280 194 6:15 AM 413 9:45 AM 403,176
Monthly Data Summary
GL-1 (AV)
Flow Meter Summary Report – Opechee Bay
Location ID: Opechee Bay
Description: Off Parade Road Across from Laconia Farm, Laconia, NH Equipment: ISCO 2160 LaserFlow Area/Velocity Sensor
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Good
Meter Uptime 100%
Data Source for level: AV
Average Daily Flow (gal): 1,169
Average Base Flow (gal): 1,013
Average Daily Sanitary Flow (gal/day): 556
Non-Rainfall GW Infiltration (gal/day): 458
Minimum Sanitary Flow (gal/day): 67
Minimum Base Flow (gal/day): 524
Peak 15-Min Flow Depth (in): 1
Peak 15-Min Flow Velocity (ft/s): 0
Peak 15-Min Flow Volume (gal): 2
Minimum 15-Min Flow Depth (in): 0
Minimum 15-Min Flow Velocity (ft/s): 0
Minimum 15-Min Flow Volume (gal): 0
Current Full Pipe Capacity (gal/day) (1)
: 1,002,240
Total Monthly Flow (gal): 36,229 (1)
Opechee Bay Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 10" 10"
Material PVC PVC
Debris / /
Shape Circle Circle
Depth 7'0" 6'11"
SITE INVESTIGATION FORM
SITE LOCATION
Off Parade Road Across From Laconia Farm, Laconia, NH
Opechee Bay
43.5581973, -71.4856399
6/4/2024
10:01 AM
US1
PLAN VIEW
PROFILE VIEW
None
US1 DS
Sensor Location
Sensor
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of Maximum
Flow Rate Total Flow gph/gal
5/1/2025 5:00 PM 1 0.001 0 0 4:45 AM 1 7:15 PM 702
5/2/2025 2:00 AM 1 0.001 1 0 1:30 AM 1 8:45 PM 792
5/3/2025 12:00 AM 1 0.001 1 0 4:30 AM 1 12:00 AM 765
5/4/2025 12:00 AM 1 0.001 1 0 2:15 AM 1 7:45 PM 869
5/5/2025 10:00 AM 1 0.001 1 0 5:30 AM 1 9:15 PM 1,004
5/6/2025 6:00 PM 1 0.001 1 1 8:00 AM 2 9:00 PM 1,359
5/7/2025 7:00 PM 2 0.001 1 1 1:30 AM 2 8:00 AM 1,726
5/8/2025 1:00 AM 1 0.001 1 1 2:45 PM 2 1:15 AM 1,301
5/9/2025 1:00 AM 1 0.001 1 1 8:45 PM 1 7:00 PM 1,517
5/10/2025 8:00 AM 2 0.001 1 1 6:30 AM 2 8:45 AM 1,570
5/11/2025 5:00 AM 1 0.001 1 1 7:15 PM 1 6:00 AM 1,354
5/12/2025 4:00 AM 1 0.001 1 1 8:45 AM 1 6:30 PM 1,106
5/13/2025 12:00 PM 1 0.001 1 1 9:15 AM 1 11:00 PM 1,106
5/14/2025 12:00 AM 1 0.001 1 1 4:00 AM 1 6:15 AM 1,257
5/15/2025 12:00 AM 1 0.001 1 1 2:00 PM 1 11:30 PM 1,267
5/16/2025 12:00 AM 1 0.001 1 1 10:30 AM 1 8:30 PM 1,304
5/17/2025 12:00 AM 1 0.001 1 1 8:45 PM 1 11:00 PM 1,301
5/18/2025 10:00 AM 1 0.001 1 1 12:15 AM 1 11:45 AM 1,176
5/19/2025 1:00 AM 1 0.001 1 1 3:00 AM 1 9:15 PM 1,224
5/20/2025 12:00 AM 1 0.001 1 1 6:30 AM 1 12:15 AM 1,267
5/21/2025 12:00 AM 1 0.001 1 1 3:30 PM 1 2:45 AM 1,271
5/22/2025 3:00 PM 1 0.001 1 1 10:00 PM 1 6:00 PM 1,332
5/23/2025 5:00 AM 1 0.001 1 1 1:00 AM 2 6:00 AM 1,454
5/24/2025 12:00 AM 1 0.001 1 1 11:45 AM 1 1:00 AM 1,322
5/25/2025 7:00 PM 1 0.001 1 1 2:15 PM 1 7:30 PM 1,294
5/26/2025 12:00 AM 1 0.001 1 1 11:15 PM 1 4:15 PM 1,261
5/27/2025 12:00 AM 1 0.001 1 0 9:30 PM 1 1:00 AM 1,078
5/28/2025 4:00 AM 1 0.001 1 1 2:00 AM 1 4:15 AM 943
5/29/2025 6:00 AM 1 0.001 0 0 12:00 AM 1 6:15 AM 695
5/30/2025 8:00 AM 1 0.000 0 0 3:15 PM 0 2:15 PM 501
5/31/2025 12:00 PM 1 0.001 1 0 1:15 AM 1 9:00 PM 1,114
Monthly Data Summary Opechee Bay (AV)
Flow Meter Summary Report – Soda Brook Homes
Location ID: Soda Brook Homes
Description: 74 South Road, Belmont, NH Equipment: ISCO 2150 Area/Velocity Sensor
Date of Meter Servicing 6/2/2025
Sensor Cleaned Yes
Level Adjustment +/- 0
Data Downloaded Yes
Batteries Replaced No
Data Gaps No
Accuracy Assessment Some Limitations
Meter Uptime 100%
Data Source for level: AV
Average Daily Flow (gal): 272
Average Base Flow (gal): 186
Average Daily Sanitary Flow (gal/day): 185
Non-Rainfall GW Infiltration (gal/day): 1
Minimum Sanitary Flow (gal/day): 22
Minimum Base Flow (gal/day): 23
Peak 15-Min Flow Depth (in): 1
Peak 15-Min Flow Velocity (ft/s): 0
Peak 15-Min Flow Volume (gal): 2
Minimum 15-Min Flow Depth (in): 0
Minimum 15-Min Flow Velocity (ft/s): 0
Minimum 15-Min Flow Volume (gal): 0
Current Full Pipe Capacity (gal/day) (1)
: 152,640
Total Monthly Flow (gal): 8,439 (1)
• Many instances of level, velocity, and flow rate dropouts occurred throughout the month, likely as a result of very low water levels
Soda Brook Homes Meter - WRBP
Operations & Maintenance
Project: WRBP Technicians: JC, CD, JH
Location:
MH#
GPS Coordinates:
Date:
Time:
Sensor Location:
LINE DESCRIPTIONS
DS US1 US2 US3
Size 8" 8"
Material PVC PVC
Debris / /
Shape Circle Circle
Depth 6'4" 6'3"
SITE INVESTIGATION FORM
SITE LOCATION
74 South Road, Belmont, NH
Soda Brook Homes
43.440840, -71.519352
6/4/2024
8:04 AM
US1
PLAN VIEW
PROFILE VIEW
None
US1 DS
Sensor Location
Sensor
Factor
Average Flow
Rate
Minimum
Flow Rate
Time of
Minimum
Flow Rate
Maximum
Flow Rate
Time of Maximum
Flow Rate Total Flow gph/gal
5/1/2025 6:00 PM 0 0.001 0 0 12:00 AM 0 7:00 PM 39
5/2/2025 2:00 AM 1 0.002 0 0 12:00 AM 1 3:00 AM 43
5/3/2025 11:00 AM 0 0.000 0 0 11:45 PM 0 11:15 AM 16
5/4/2025 6:00 AM 0 0.001 0 0 12:00 AM 0 6:30 AM 40
5/5/2025 11:00 AM 1 0.003 0 0 5:30 AM 1 11:15 AM 453
5/6/2025 5:00 PM 1 0.003 0 0 7:30 PM 1 12:00 PM 528
5/7/2025 10:00 AM 1 0.003 0 0 10:30 PM 1 4:45 PM 567
5/8/2025 2:00 AM 1 0.003 0 0 10:45 PM 2 2:45 AM 442
5/9/2025 7:00 AM 1 0.003 0 0 4:30 PM 1 10:45 AM 707
5/10/2025 10:00 AM 1 0.004 1 1 5:30 PM 1 10:45 AM 1,166
5/11/2025 8:00 AM 1 0.003 0 0 7:15 PM 1 1:45 PM 632
5/12/2025 6:00 AM 0 0.001 0 0 2:15 AM 1 6:15 AM 308
5/13/2025 7:00 AM 0 0.001 0 0 1:30 PM 1 7:15 AM 161
5/14/2025 2:00 AM 0 0.001 0 0 12:00 AM 1 2:45 AM 123
5/15/2025 8:00 AM 0 0.001 0 0 12:00 AM 1 8:45 AM 65
5/16/2025 10:00 AM 0 0.001 0 0 12:00 AM 0 11:00 AM 36
5/17/2025 10:00 AM 0 0.000 0 0 10:00 PM 0 11:45 AM 32
5/18/2025 12:00 PM 1 0.003 0 0 5:00 AM 1 4:00 PM 477
5/19/2025 7:00 AM 1 0.002 0 0 9:15 PM 1 8:00 AM 264
5/20/2025 2:00 AM 1 0.002 0 0 1:45 PM 1 2:45 AM 145
5/21/2025 7:00 AM 0 0.001 0 0 12:00 AM 1 8:00 AM 83
5/22/2025 8:00 PM 0 0.001 0 0 1:45 PM 1 3:15 PM 152
5/23/2025 7:00 AM 1 0.003 0 0 12:15 AM 1 8:15 AM 513
5/24/2025 7:00 AM 1 0.003 0 0 6:15 PM 1 10:30 AM 636
5/25/2025 1:00 PM 1 0.002 0 0 11:15 PM 1 1:30 PM 341
5/26/2025 10:00 AM 1 0.003 0 0 4:15 AM 1 2:45 AM 213
5/27/2025 6:00 AM 0 0.001 0 0 12:00 AM 1 8:45 PM 53
5/28/2025 7:00 PM 0 0.000 0 0 12:00 AM 0 7:45 PM 21
5/29/2025 11:00 AM 0 0.000 0 0 12:00 AM 0 11:15 AM 18
5/30/2025 7:00 AM 0 0.000 0 0 12:00 AM 0 8:00 AM 18
5/31/2025 11:00 PM 1 0.002 0 0 2:45 PM 1 12:00 AM 146
Monthly Data Summary Soda Brook Homes (AV)
Rain Gauge Summary Report
Location ID: Belmont Pump Station, Maiden Lady Cove Pump Station, Winnasquam Pump Station, and River St. Pump Station
Equipment: ISCO 674 Rain Gauges with an ISCO 2105 Interface Modules
Location ID Belmont Maiden Lady Winnasquam River St
Date of Installation 10/15/2014 10/15/2014 10/15/2014 10/15/2014
Date of Meter
Servicing 6/2/2025 6/2/2025 6/2/2025 6/2/2025
Gauge Cleaned Yes Yes Yes Yes
Data Downloaded Yes Yes Yes Yes
Total Rainfall (in) 7.27 7.08 7.02 9.42
Average Rainfall (in) 0.08 0.07 0.07 0.51
Peak Rainfall Date 5/17/2025 5/17/2025 5/17/2025 5/17/2025
Peak Rainfall Time 8:00 PM 7:00 PM 8:00 PM 7:45 PM
Peak Rainfall Amount
(in)
0.45 0.30 0.27 0.11
Average Daily Total
Rainfall (in)
0.23 0.23 0.23 0.30
Date RF Amount RF Intensity
Average
Rainfall
Minimum
Rainfall
Time of
Minimum
Rainfall
Maximum
Rainfall
Time of
Maximum
Rainfall
Total
Rainfall inches
5/1/2025 0.01 0 0 0 11:45 PM 0.01 12:00 AM 0.01
5/2/2025 0.2 0.01 0 0 12:00 AM 0.08 7:15 PM 0.2
5/3/2025 0.61 0.03 0.01 0 12:00 AM 0.17 2:00 PM 0.61
5/4/2025 0.5 0.02 0.01 0 12:00 AM 0.05 3:30 PM 0.5
5/5/2025 0.36 0.02 0 0 12:00 AM 0.03 4:00 AM 0.36
5/6/2025 0.5 0.02 0.01 0 12:00 AM 0.12 3:30 PM 0.5
5/7/2025 0.13 0.01 0 0 12:00 AM 0.04 3:30 PM 0.13
5/8/2025 0.19 0.01 0 0 10:15 PM 0.03 11:15 PM 0.19
5/9/2025 0.71 0.03 0.01 0 12:00 AM 0.05 5:45 PM 0.71
5/10/2025 0.68 0.03 0.01 0 12:00 AM 0.05 9:30 AM 0.68
5/11/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/12/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/13/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/14/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/15/2025 0.01 0 0 0 12:00 AM 0.01 1:30 PM 0.01
5/16/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/17/2025 0.92 0.04 0.01 0 12:00 AM 0.45 8:00 PM 0.92
5/18/2025 0.03 0 0 0 12:00 AM 0.01 6:00 PM 0.03
5/19/2025 0.08 0 0 0 12:00 AM 0.02 7:15 PM 0.08
5/20/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/21/2025 0.01 0 0 0 12:00 AM 0.01 2:00 PM 0.01
5/22/2025 0.54 0.02 0.01 0 11:30 PM 0.04 7:00 PM 0.54
5/23/2025 0.33 0.01 0 0 12:00 AM 0.06 12:15 AM 0.33
5/24/2025 0.07 0 0 0 12:00 AM 0.01 11:15 AM 0.07
5/25/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/26/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/27/2025 0.01 0 0 0 12:00 AM 0.01 10:00 AM 0.01
5/28/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/29/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/30/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/31/2025 1.38 0.06 0.01 0 12:00 AM 0.12 10:15 AM 1.38
Rain Gauge: Belmont Pump Station
Rainfall
Minimum
Rainfall
Time of
Minimum
Rainfall
Maximum
Rainfall
Time of
Maximum
Rainfall
Total
Rainfall inches
5/1/2025 0.03 0 0 0 11:45 PM 0.03 12:00 AM 0.03
5/2/2025 0.15 0.01 0 0 12:00 AM 0.06 1:30 AM 0.15
5/3/2025 0.19 0.01 0 0 12:00 AM 0.04 2:45 PM 0.19
5/4/2025 0.26 0.01 0 0 11:45 PM 0.03 6:45 PM 0.26
5/5/2025 0.33 0.01 0 0 12:00 AM 0.02 10:30 AM 0.33
5/6/2025 0.4 0.02 0 0 12:00 AM 0.09 3:00 PM 0.4
5/7/2025 0.28 0.01 0 0 12:00 AM 0.11 4:30 PM 0.28
5/8/2025 0.61 0.03 0.01 0 9:45 PM 0.18 7:00 PM 0.61
5/9/2025 0.8 0.03 0.01 0 12:00 AM 0.05 6:15 PM 0.8
5/10/2025 0.9 0.04 0.01 0 12:00 AM 0.09 6:00 AM 0.9
5/11/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/12/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/13/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/14/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/15/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/16/2025 0.17 0.01 0 0 12:00 AM 0.09 7:00 PM 0.17
5/17/2025 0.62 0.03 0.01 0 12:00 AM 0.3 7:00 PM 0.62
5/18/2025 0.04 0 0 0 12:00 AM 0.02 2:15 PM 0.04
5/19/2025 0.13 0.01 0 0 12:00 AM 0.03 5:45 PM 0.13
5/20/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/21/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/22/2025 0.47 0.02 0 0 10:15 PM 0.03 11:45 PM 0.47
5/23/2025 0.41 0.02 0 0 12:00 AM 0.03 1:30 AM 0.41
5/24/2025 0.05 0 0 0 12:00 AM 0.01 8:15 AM 0.05
5/25/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/26/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/27/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/28/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/29/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/30/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/31/2025 1.24 0.05 0.01 0 11:30 PM 0.03 10:15 AM 1.24
Rain Gauge: Maiden Lady Cove
Rainfall
Minimum
Rainfall
Time of
Minimum
Rainfall
Maximum
Rainfall
Time of
Maximum
Rainfall
Total
Rainfall inches
5/1/2025 0.01 0 0 0 11:45 PM 0.01 12:00 AM 0.01
5/2/2025 0.1 0 0 0 12:00 AM 0.05 7:15 PM 0.1
5/3/2025 0.4 0.02 0 0 12:00 AM 0.09 2:15 PM 0.4
5/4/2025 0.58 0.02 0.01 0 11:45 PM 0.07 3:30 PM 0.58
5/5/2025 0.4 0.02 0 0 12:00 AM 0.03 2:00 AM 0.4
5/6/2025 0.53 0.02 0.01 0 12:00 AM 0.1 3:15 PM 0.53
5/7/2025 0.05 0 0 0 12:00 AM 0.02 3:00 PM 0.05
5/8/2025 0.22 0.01 0 0 9:45 PM 0.04 12:00 AM 0.22
5/9/2025 1.23 0.05 0.01 0 10:15 PM 0.08 11:30 PM 1.23
5/10/2025 0.97 0.04 0.01 0 12:00 AM 0.11 6:45 AM 0.97
5/11/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/12/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/13/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/14/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/15/2025 0.02 0 0 0 12:00 AM 0.02 6:00 AM 0.02
5/16/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/17/2025 1.2 0.05 0.01 0 12:00 AM 0.51 7:45 PM 1.2
5/18/2025 0.1 0 0 0 12:00 AM 0.06 5:30 PM 0.1
5/19/2025 0.14 0.01 0 0 12:00 AM 0.02 7:45 PM 0.14
5/20/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/21/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/22/2025 0.77 0.03 0.01 0 11:00 PM 0.04 8:00 PM 0.77
5/23/2025 0.47 0.02 0 0 12:00 AM 0.05 12:45 AM 0.47
5/24/2025 0.12 0.01 0 0 12:00 AM 0.02 11:45 AM 0.12
5/25/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/26/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/27/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/28/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/29/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/30/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/31/2025 2.11 0.09 0.02 0 12:00 AM 0.19 3:45 PM 2.11
Rain Gauge: River Street
Rainfall
Minimum
Rainfall
Time of
Minimum
Rainfall
Maximum
Rainfall
Time of
Maximum
Rainfall
Total
Rainfall inches
5/1/2025 0 0 0 0 12:00 AM 0 12:00 AM 0
5/2/2025 0.19 0.01 0 0 12:00 AM 0.1 8:30 PM 0.19
5/3/2025 0.33 0.01 0 0 12:00 AM 0.05 3:15 PM 0.33
5/4/2025 0.32 0.01 0 0 10:15 PM 0.04 4:00 PM 0.32
5/5/2025 0.35 0.01 0 0 12:00 AM 0.03 4:30 AM 0.35
5/6/2025 0.39 0.02 0 0 12:00 AM 0.12 3:45 PM 0.39
5/7/2025 0.08 0 0 0 12:00 AM 0.02 3:30 PM 0.08
5/8/2025 0.28 0.01 0 0 9:30 PM 0.05 12:00 AM 0.28
5/9/2025 0.64 0.03 0.01 0 12:00 AM 0.06 5:45 PM 0.64
5/10/2025…
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