8-E 2024 Annual Report.pdf

Recharge Operation and Monitoring Upper Agua Fria Recharge Facility

Town of Prescott Valley, Yavapai County, Arizona

2024 Annual Report Underground Storage Facility Permit No. 71-220048.0003

Water Storage Permit No. 73-220048.0000 (January to December 2024)

January 2025

Contents

1 Introduction

2 Recharge Facility Operations

2.1 Water Deliveries to Recharge Facility

2.2 Monitoring of Recharge Facility

3 Results of Monitoring

3.1 Groundwater Levels

3.2 Alert and Action Levels

3.3 Storm Flow Monitoring

3.4 Effluent Flows at Terminus of Facility and Berm Inspections

3.5 Occurrence of Water in Channels as ”Daylighting”

3.6 Open Water Surface Evaporation

3.7 Transpiration Losses

3.8 Other Losses

3.9 Infiltration Rates

3.10 Vegetation Monitoring

3.11 Baseflow at USGS Humboldt Station (No. 09512450)

List of Tables

1 Monthly Summary of Deliveries and Recharge January through December 2024, Up-per Agua Fria Recharge Facility

2 Total Deliveries and Permitted Storage Volumes (in acre-feet) for USF Permit 71-

220048.0000 and 71-220048.003

3 Groundwater Level Monitoring for Expanded Upper Agua Fria Recharge Facility, Town of Prescott Valley, Arizona

4 Groundwater Level Monitoring for Piezometers, North Plains Site, Upper Agua Fria Recharge Facility, Town of Prescott Valley, Arizona

5 Facility Monitoring for Upper Agua Fria Recharge Facility Town of Prescott Valley, Ari-zona

6 Surface Flow, Berm Condition and Effluent Flow at Terminus, In-Channel Site, Upper Agua Fria Recharge Facility

7 Observation of Daylighting at North Plains Site 8 In-Channel Evaporative Losses 9 North Plains Evaporation 10 Transpiration Losses – Upper Agua Fria Recharge Facility, In-Channel Site 11 Infiltration Rates for North Plains Basins 12 Summary of Provisional Daily Mean and Monthly Median Streamflow, January through

December 2024, USGS Humboldt Station (No. 09512450) Yavapai County, Arizona (in cfs)

List of Figures

1 Facility Map–Upper Agua Fria Recharge Facility – In-Channel Site 2 Facility Map–Upper Agua Fria Recharge Facility – North Plains Site

3 Hydrographs of GW levels for Monitoring Wells MW-1 and MW-2 4 Hydrographs of GW levels for Monitoring Wells MW-3 and MW-4 5 Hydrographs of GW levels for Monitoring Wells MW-NP-2 and MW-NP-3 6 Hydrographs of GW levels for Monitoring Wells PZ-NP-1S and PZ-NP-1D 7 Hydrographs of GW levels for Monitoring Wells PZ-NP-2S and PZ-NP-2D 8 Hydrographs of GW levels for Monitoring Wells PZ-NP-3S and PZ-NP-3D 9 Hydrograph of Daily and Monthly Mean Streamflow Discharge, Agua Fria River at

Humboldt 10 Hydrograph of Monthly Median Streamflow Discharge, Agua Fria River at Humboldt

Appendices 1 Appendix A – Supplemental Tables 2 Appendix B – Vegetation Monitoring 3 Appendix C – Other Losses Email Notification

1 Introduction

This report has been prepared to document recharge operations and monitoring for the Upper Agua Fria (UAF) Constructed Underground Storage Facility (CUSF) during the period January through December 2024. Facility operations are summarized in Section 2, and results of monitoring are summarized in Section 3.

Treated effluent has been discharged from the Town’s Advanced Treatment Facility (ATF) to the Agua Fria River channel since 1993. The Arizona Department of Water Resources (ADWR) issued a Managed Underground Storage Facility (MUSF) Permit and a Water Storage Permit on April 18, 2003, authorizing operation of the facility and storage of treated effluent in the regional aquifer. The expiration date of the MUSF permit was specified as May 28, 2004 when a pilot Constructed Un-derground Storage Facility Permit became active. The UAF Recharge Facility was operated under this permit until June 30, 2006. On May 9, 2006, ADWR issued a full-scale CUSF permit for the UAF Recharge Facility. This permit became active on July 1, 2006 and the pilot CUSF permits (71- 509252 and 73-509252) expired.

On May 21, 2012, ADWR issued a new CUSF permit and Water Storage permit (71-220048.0000 and 73-220048.0000) for a new constructed off-channel recharge site (North Plains). This permit also covers the existing In-Channel constructed site consisting of the 2.2 mile reach of the Agua Fria River below the ATF. These new permits became active when construction of the North Plains Site was complete and recharge operations began on April 4, 2013. For the purpose of reporting, the new permits (71-220048.0000 and 73-220048.0000) became effective on April 1, 2013. On August 20, 2014, ADWR issued a modification to the USF permit (71-220048.0001) that changed the re-sponse and reporting requirements for the Alert Levels and Action Limits for water levels monitored by the piezometers. On May 15, 2018, ADWR issued a modification to the USF (71-220048.0002) moving two additional recharge basins (11B and 12B) under the Phase 1 portion of the permit.

In February, 2019, the two additional recharge basins (11B and 12B) were complete and on March 22, 2019, ADWR completed the inspection of the basins and issued a final modified USF permit (71-220048.0003). Up until 2024 these basins were not typically used during normal operations due to their close connection to nearby monitoring well and piezometer points. However, through re-testing of Basins 11B and 12B this year, we determined that Basin 12B can be used without causing compliance challenges.

2 Recharge Facility Operations

Operations for the UAF Recharge Facility include measurement of water deliveries and monitoring of conditions of both the In-Channel and North Plains recharge sites. A facility map for the active UAF Recharge Sites is shown on Figure 1 and 2.

Agu a F ria R iv er

89A

89A

S a n ta Fe Loo p R d

N O ld F a in R d

E

Va lley R d

N F a in R d

Agua Fria River

89A

E Man zanita Trl

N O rch ard C t

N Range St

E S a n ta F e L o o p

E S anta

F e L o o p

N O ld F a in R d

E High Point Dr

Windmill Dr

E Bear Blvd E State

Route

N F ain

R d

N O ld C his h o lm

T rl

Prescott Golf and Country

Club

Lynx Creek

Agua Fria River

89A

N O ld F a in R d

Lynx C re e k

N

Quailwood Greens Golf Course

Villages at Lynx Creek

ATF UTILITY BLDG

PP-1

PP-2

PP-3

PP-4

TERMINUS

GRAPEVINE

GULCH

REUSE METER

ATF FLUME

MW-3

MW-2

MW-1

MW-4

Esri Community Maps Contributors, County of Yavapai, Esri, TomTom, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, Bureau of Land

Management, EPA, NPS, US Census Bureau, USDA, USFWS0 0.25 0.50.13 Miles

Legend Monitor Well

USF Monitoring Locations

In Channel USF

In-Channel Facility

Figure 1: Site Map–Upper Agua Fria Recharge Facility – In-Channel Site

E Lak eshore Dr

C o yo te W a sh

89A

89A N F a in R d

89A

BASIN 5A

BASIN 1A

BASIN 2A

BASIN 4A

BASIN 3A

BASIN

11A BASIN 12A

NORTH

PLAINS FM

MW-NP-1

MW-NP-3

PZ-NP-3

PZ NP-1

PZ-NP-2

MW-NP-2

Esri Community Maps Contributors, County of Yavapai, Esri, TomTom, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, Bureau of Land

Management, EPA, NPS, US Census Bureau, USDA, USFWS0 0.15 0.30.07 Miles

Legend North Plains Recharge Basins

Monitor Well

Piezometer

USF Monitoring Locations

North Plains Facility

Figure 2: Site Map–Upper Agua Fria Recharge Facility – North Plains Site

2.1 Water Deliveries to Recharge Facility

During the period January 1 through December 31, 2024, the average daily discharge from the ATF was 2.57 million gallons. A summary of monthly ATF discharges is shown in Table 1, daily outflow and operational deliveries are recorded in Tables A1 through A2 (Appendix A). A total of 941.91 million gallons, or 2,890.62 acre-feet, of treated effluent was discharged from the ATF. Of the to-tal amount discharged, approximately 14.6 percent was diverted for reuse, 67.1 percent was dis-charged to the Agua Fria River channel and 14.7 percent was delivered to the North Plains Site.

Daily mean discharge from the ATF to the Agua Fria River channel averaged 1.73 mgd during the period January 1 to December 31, 2024. Daily mean discharge from the ATF to the North Plains Site averaged 0.38 mgd during the period January 1 to December 31, 2024. Data is tabulated in Appendix A, Table A1.

Monthly storage at the In-Channel and North Plains, along with the combined storage for the USF is displayed in Table 1. USF permit 71-220048.0003 limits the allowable annual and cumulative stor-age credits for both recharge facilities. The annual allowable recharge volume for Phase 1 at the In-channel Site is 1,200 acre-feet and at the North Plains Site is 2,400 acre-feet per year. The max-imum allowable storage at the North Plains Site is 41,950 acre-feet at any time, and combined stor-age at both facilities shall not exceed 68,150 acre-feet. Table 2 displays the annual and cumulative storage volumes at both facilities.

The total volume of effluent discharged to the Agua Fria channel in 2024 totaled 1,938.43 acre-feet.

However, after subtrating periods of non-compliance and evapotranspiration the annual volume of effluent recharged is 1,338.00 acre-feet for the reporting year. As stated above, the annual permit-ted recharge volume for the In-Channel Site is 1,200 acre-feet. In 2024, the total amount of effluent recharged at the North Plains Site is 377.35 bringing the total credited recharge for the entire Upper Agua Fria Recharge Facility to 1,577.35 acre-feet (1,200 acre-feet plus 377.35 acre-feet).

Table 1: Monthly Summary of Deliveries and Recharge January through December 2024, Upper Agua Fria Recharge Facility

Month Effluent Discharge from ATF Measured by Meter

Direct Reuse (Parks & Golf Course)

Utility Water

(Effluent Used in

ATF)

Effluent Discharge to Agua

Fria Channel*

Eligible Deliveries to In-Channel

USF

In-Channel Recharged (minus ET)

Deliveries to North

Plains USF

North Plains

Recharged (minus

ET)1

Total Volume

Recharged (In-Channel

+ North Plains)

(in acre-feet) Jan 235.20 6.87 5.98 199.17 199.17 198.35 23.20 21.87 220.24 Feb 232.53 4.88 9.33 193.09 193.09 192.13 25.23 23.13 215.26 Mar 240.97 18.11 7.98 170.81 170.81 169.30 44.10 39.73 209.04 Apr 237.38 32.28 8.87 149.79 149.79 147.01 46.49 40.80 187.82 May 245.05 61.59 10.13 140.40 140.40 136.66 32.96 27.14 163.79 Jun 237.50 65.74 9.70 141.35 141.35 137.30 20.68 18.65 155.95 Jul 246.31 56.44 10.16 160.10 56.16 54.32 19.73 15.40 69.71 Aug 247.14 38.79 9.94 161.15 0.00 0.00 37.29 28.62 28.62 Sept 231.15 46.52 5.65 139.45 0.00 0.00 39.62 33.82 33.82 Oct 249.99 37.26 9.85 154.49 0.00 0.00 48.46 44.78 44.78 Nov 242.93 27.62 10.19 162.01 138.13 137.06 43.12 40.62 177.68 Dec 244.47 25.13 8.35 166.61 166.61 165.86 44.38 42.79 208.65 Total 2890.62 421.24 106.12 1938.43 1355.53 1338.00 425.26 377.35 1715.36

(in MGD) Jan 76.64 2.24 1.95 64.90 64.90 64.63 7.56 7.12 71.77 Feb 75.77 1.59 3.04 62.92 62.92 62.61 8.22 7.54 70.14 Mar 78.52 5.90 2.60 55.66 55.66 55.17 14.37 12.95 68.12 Apr 77.35 10.52 2.89 48.81 48.81 47.90 15.15 13.3 61.20 May 79.85 20.07 3.30 45.75 45.75 44.53 10.74 8.84 53.37 Jun 77.39 21.42 3.16 46.06 46.06 44.74 6.74 6.08 50.82 Jul 80.26 18.39 3.31 52.17 18.30 17.70 6.43 5.02 22.72 Aug 80.53 12.64 3.24 52.51 0.00 0.00 12.15 9.33 9.33 Sept 75.32 15.16 1.84 45.44 0.00 0.00 12.91 11.02 11.02 Oct 81.46 12.14 3.21 50.34 0.00 0.00 15.79 14.59 14.59 Nov 79.16 9.00 3.32 52.79 45.01 44.66 14.05 13.24 57.90 Dec 79.66 8.19 2.72 54.29 54.29 54.04 14.46 13.94 67.99 Total 941.91 137.26 34.58 631.64 441.70 435.99 138.57 122.96 558.97

Includes 2.63 acre-feet subtracted for other losses (see Section 3.8)

* Calculation equals Effluent Discharge - North Plains - Direct Reuse - Utility Water 5

Table 2: Total Deliveries and Permitted Storage Volumes (in acre-feet) for USF Permit 71-

220048.0000 and 71-220048.003

Year Total Deliveries to In-Channel Site minus

ETa

Total Credited Annual Deliveries to In-Channel Site [Max 1,200]

Total Deliveries to North Plains Site minus

ETa

Total Credited Annual Deliveries to North Plains Site [Max 2,400]

Total Credited

Deliveries to Both

Facilities 2013 1,095.4 1,095.4 398.4 398.4 1,493.8 2014 1,299.0 1,200.0 553.9 553.9 1,753.9 2015 1,227.0 1,200.0 554.8 554.8 1,754.8 2016 1,157.1 1,157.1 543.6 543.6 1,700.7 2017 1,338.8 1,200.0 482.5 482.5 1,682.5 2018 1,507.6 1,200.0 443.0 443.0 1,643.0 2019b 1,615.0 1,200.0 532.5 532.5 1,732.5 2020 1,368.0 1,200.0 363.1 363.1 1,563.1 2021 1,189.8 1,189.8 397.8 397.8 1,587.6 2022 1,220.7 1,200.0 450.0 450.0 1,650.0 2023 1,275.5 1,200.0 399.4 399.4 1,599.4 2024 1,338.0 1,200.0 377.4 377.4 1,577.4 Total 15,631.9 14,242.3 5,496.4 5,496.4 19,738.7 b 71-220048.0003 approved in 2019

2.2 Monitoring of Recharge Facility

Monitoring for the UAF Recharge Facility includes: 1) measurement of groundwater levels in six wells and three nested piezometer wells consisting of two stacks each, 2) measuring effluent flow to both facilities with specified flow metering devices 3) documentation of surface water flow at the U.S. Geological Survey (USGS) stream gage near Humboldt, 4) monitoring for storm flow in the Agua Fria River channel and in Grapevine Gulch, 5) monitoring for effluent flow at the terminus of the active CUSF, 6) monitoring for wet and dry conditions in both facilities, 7) monitoring for oc-currence of water not related to storm flows (daylighting) in the Agua Fria River and Coyote Wash channels next to the North Plains Site and, 8) annual photographic documentation of vegetation changes in the In-channel Site.

Groundwater level monitoring requirements are summarized in Tables 3 and 4 and other monitoring requirements for the recharge facility are summarized in Table 5. Monitoring of the quality of treated effluent and of groundwater is conducted under the ATF Aquifer Protection Permit (No. P102503), issued by Arizona Department of Environmental Quality. During the reporting period of January through December 2024 operation of the ATF was in compliance with requirements of the Aquifer Protection Permit.

Table 3: Groundwater Level Monitoring for Expanded Upper Agua Fria Recharge Facility, Town of Prescott Valley, Arizona

In-Channel Site

Monitor Point ID

ADWR

Reg. No.

Cadastral Location

Well Elev.

(feet, MSL)

Well Depth (feet, BLS)

Screened Interval (feet, BLS)

Measuring Device1

Monitoring Frequency

Reporting Frequency

Alert Water Level

(feet, BLS)

Operation Prohibition Limit (feet, BLS)

Associated Phase

MW-1 55-543437 A(14-

01)21dba 4,719.5 69 20 – 69 Sounder/

Transducer Monthly Annually 22 20 1, 2

MW-2 55-543438 A(14-01)

21bdb 4,739.5 122 32 – 122 Sounder/

Transducer Monthly Annually 27 25 1, 2

MW-3 55-543439 A(14-01)

21bba 4,755.5 147 37 – 147 Sounder/

Transducer Monthly Annually 27 25 1, 2

MW-4 55-597701 A(14-01)

27cdb 4,638.4 44 14 – 44 Sounder/

Transducer Monthly Annually 17 15 1, 2

North Plains Recharge Site

Monitoring Frequency

Monitor Point

ID

ADWR

Reg. No.

Cadastral Location

Well Elev.

(feet, MSL)

Well Depth (feet, BLS)

Screened Interval (feet, BLS)

Measuring Device1

Minimum 1st 12 months of operation2

Remainder of Permit

Reporting Frequency

Alert Water Level (feet, BLS)

Operation Prohibition Limit (feet, BLS)

Associated Phase

MW-

NP-2 55-915032 A(14-01)

08dcd 4,783.5 179.0 69 – 179 Sounder/ Transducer

Once every two weeks Monthly Annually 20 15 1, 2

MW-

NP-3 55-915033 A(14-01)

08acd 4,814.8 178.0 68 – 178 Sounder/ Transducer

Once every two weeks Monthly Annually 20 15 1, 2

MW-

NP-43 55-* A(14-01)

08abdi * Proposed 180*

Proposed 60 - 180*

Sounder/ Transducer

Once every two weeks Monthly Annually 20 15 *

Contingency Well

MW-

NP-1 55-908401 A(14-01)

08cad 4,803.34 185.8 65.8 – 185.8

Sounder/ Transducer TBD TBD TBD TBD TBD TBD

* The permittee shall submit the Well Registration Numbers, location, and well construction data to ADWR before commencing recharge activities for the associated phase. The information will be inserted into this table at that time.

1 The permittee may provide water level data measured by either an electric sounder of pressure transducer equipment as needed as long as the permittee complies with permit condition 4.a. and 6.d. for all water level measurements.

2 Upon commencing recharge under this permit the monitoring frequency shall be once every two weeks until the facility has operated for a period of twelve (12) consecutive months with less than two (2) instances of alert level exceedances as any of the monitoing points in this table. After this twelve-month period, the monitoring frequency shall be automatically reduced to monthly for all of the monitoring points in this table without the need for a permit modification.

3 When the permittee constructs North Plains Site basins 1B and/or 2B, the permittee shall install MW-NP4.

4 If additional monitoring is necessary, the permittee may monitor and report water level measurments from MW-NP-1. The permitteee shall consult with ADWR to determine the monitoring and reporting frequencies which will be incorporated into this table at that time.

Table 4: Groundwater Level Monitoring for Piezometers, North Plains Site, Upper Agua Fria Recharge Facility, Town of Prescott Valley, Arizona

Monitor Well or

Piezometer

ADWR

Reg. No.

Cadastral Location

Well Elev.

(feet, MSL)

Well Depth (feet, BLS)B

Screened Interval (feet, BLS)

Measuring Device1

Monitoring Frequency

Reporting Frequency

Alert Water Level (feet, BLS)

Action Limit (feet, BLS)

Associated Phase

PZ-NP-1S 55-915034 A(14-01)

08cad 4,795.88 20 10 – 20 Sounder/

Transducer Once every two weeks Annually 8.9 6.9 1, 2

PZ-NP-1D 55-915034 A(14-01)

08cad 4,795.88 45 30 – 45 Sounder/

Transducer Once every two weeks Annually 10.9 7.9 1, 2

PZ-NP-2S 55-915035 A(14-01)

08dcc 4,786.42 19 9 – 19 Sounder/

Transducer Once every two weeks Annually 13.6 11.6 1, 2

PZ-NP-2D 55-915035 A(14-01)

08dcc 4,786.42 45 30 – 45 Sounder/

Transducer Once every two weeks Annually 15.6 12.6 1, 2

PZ-NP-3S 55-915036 A(14-01)

08dbd 4,802.55 20 10 – 20 Sounder/

Transducer Once every two weeks Annually 11.0 9.0 1, 2

PZ-NP-3D 55-915036 A(14-01)

08dbd 4,802.55 45 30 – 45 Sounder/

Transducer Once every two weeks Annually 13.0 10.0 1, 2

1 The permittee may provide water level data measured by either an electric sounder of pressure transducer equipment as needed as long as the permittee complies with permit condition 4.a. and 6.d. for all water level measurements.

Table 5: Facility Monitoring for Upper Agua Fria Recharge Facility Town of Prescott Valley, Arizona

Reporting Frequency Monitor Point ID Measuring Device Parameter Cadastral Location Monitoring Frequency 1st (4) Quarters After 1st Year

Advanced Treatment Facility (ATF) Flume

Parshall Flume and Ultrasonic Water Level Device

Outflow from the Advanced Treatment Facility

A(14-01)16ccc Daily1 Quarterly Annually

Reuse meter Inline Flow Meter Effluent Diverted from Effluent Reservoir to Reuse Pipeline

(A-14-01)16CCC Daily1 Quarterly Annually

Utility Meter Inline Flow Meter Water diverted from the Effluent Reservoir back to ATF

(A-14-01)16CCC Daily1 Quarterly Annually

North Plains Flowmeter Inline Flow Meter Effluent Delivered to

North Plains Site (A-14-01)08DCD Daily1 Quarterly Annually

Visual Observation Storm Flow into the Agua Fria River Channel

(A-14-01)16CCB (ATF

Utility/Shop Building) and (A-14-01)22CCA (Grapevine Gulch Channel near confluence with Agua Fria River)

Daily during and after storm events until flow ceases2 Quarterly Annually

Terminus of the In-Channel Site Visual Inspection

Effluent Flow Past the Terminus of the In-Channel Site

A(14-01)27BDC Every two (2) weeks Quarterly Annually

USGS Stream Gage Surface Water Flow out of the Prescott AMA A(13-01)23CCC Daily1 Quarterly Annually

Visual Inspection Berm Integrity within the In-Channel Site

Length of In-Channel Site

Monthly and after Storm Events2 Quarterly Annually

Visual Inspection and Camera

Vegetation Changes within the In-Channel Site

PP-1 A(14-01)21BDB

PP-2 A(14-01)21DAB

PP-3 A(14-01)22CDB

PP-4 A(14-01)27BDC

Annually NA Annually

Visual Inspection Daylighting of Effluent See Figure 7-Rev3 Every two (2) weeks Quarterly Annually 1 The data shall be summarized by month and reported to ADWR as specified in this table.

2 The permittee shall monitor the In-Channel Site for storm flow entering the site, effluent leaving the site and the berm integrity within the site only when effluent is being delivered to the In-Channel Site.

3 Response to July 25, 2011 Incomplete and Incorrect Determination for Underground Storage Facility (USF) Application No. 71-220048.0000 and Water Storage (WS) Application No.

73-220048.0000 for the Town of Prescott Valley’s Upper Agua Fria Recharge Facility dated October 7, 2011.

3 Results of Monitoring

3.1 Groundwater Levels

During the reporting period groundwater levels were monitored with an electric sounder at least monthly for wells listed in Table 3 and bi-weekly for the piezometers listed in Table 4; these water level measurements are summarized in Table A4 in Appendix A.

Monitor wells MW-1, MW-2, MW-3, MW-4, MW-NP-2, MW-NP-3, and PZ-NP-1 are equipped with continuous recording data loggers, and are uploaded manually on a regular basis. Data from these devices, along with the electric sounder readings, is used to meet any increased monitoring require-ments. Additionally, increased monitoring by current personnel was conducted during calendar year 2024 to increase hydrogeologic knowledge of conditions in both portions of the USF. Changes in water levels in these wells are shown in Figures 3 through 8.

Water levels in three out of the four wells next to the In-Channel Site (MW-1 through MW-3) roughly tracked recharge operations in the channel. Runoff events in the Agua Fria River also influenced water levels in those three wells. Typically, water levels increased during more intensive in-channel recharge operations and declined while more effluent was delivered to the North Plains Site or when the In-Channel Site was out of compliance due to damaged berms. Monitoring well MW-4, located approximately ½ mile south of the terminus of the In-channel site, has become more tied to storm runoff from Lynx Creek since the creek cut a new meander closer to the well in March 2023. The well is now more responsive to storm runoff than by upstream recharge activities.

At the North Plains Site, water levels in MW-NP-2 and PZ-NP-2 (Figures 5a, Figure 7) fluctuated based on deliveries to Recharge Basins 4A, 5A and 12B. MW-NP-3 at the North Plains Site re-mained steady throughout the reporting year(Figure 5b). Water levels in PZ-NP-1 and PZ-NP-3 (Figure 6, Figure 8) are heavily influenced by recharge activity in Basins 2A and 3A. Because of this, Basin 2A was seldom used to keep water levels in these piezometers below the limits estab-lished in the permit. Additionally, all piezometers are responsive to storm flow in either the Agua Fria River or Coyote Wash. The permit conditions and responses are described in Sections 3.2 and 3.5.

3.2 Alert and Action Levels

Alert levels for monitor wells and piezometers are established by ADWR. Historically, alert level is-sues in PZ-NP-1 and PZ-NP-3 have caused the Town to limit use of Basins 2A and 3A. However, in 2024 we were able to use Basin 3A in a limited fashion. Water levels in PZ-NP-3 and PZ-NP-1 were closely monitored and never reached the alert level. The Town had three different alert level exceedances in the reporting year, all of which occurred at MW-NP-2. MW-NP-2 is heavily influ-enced by recharge occuring at Basins 5A and 12B. The Town followed the permit requirements de-scribed in permit conditions 5.a. for the alert level exceedances that occurred during the year. The Town had no operation prohibition limits or action limits exceeded in the reporting year.

(a) MW-1 (55-543437, A(14-01)21dba, land surface 4,719.5 ft MSL)

(b) MW-2 (55-543438, A(14-01)21bdb, land surface 4,739.5 ft MSL)

Figure 3: Hydrographs of GW levels for Monitoring Wells MW-1 and MW-2

(a) MW-3 (55-543439, A(14-01)21bba, land surface 4,755.5 ft MSL)

(b) MW-4 (55-597701, A(14-01)27cdb2, land surface 4,638.4 ft MSL)

Figure 4: Hydrographs of GW levels for Monitoring Wells MW-3 and MW-4

(a) MW-NP-2 (POC No. 5) (55-915032, A(14-01)08dcd, land surface 4,783.5 ft MSL)

(b) MW-NP-3 (POC No.6) (55-915033, A(14-01)08acd, land surface 4,814.8 ft MSL)

Figure 5: Hydrographs of GW levels for Monitoring Wells MW-NP-2 and MW-NP-3

(a) PZ-NP-1S (55-915034, A(14-01)08cad, land surface 4,795.88 ft MSL)

(b) PZ-NP-1D (55-915034, A(14-01)08cad, land surface 4,795.88 ft MSL)

Figure 6: Hydrographs of GW levels for Monitoring Wells PZ-NP-1S and PZ-NP-1D

(a) PZ-NP-2S (55-915035, A(14-01)08dcc, land surface 4,786.42 ft MSL)

(b) PZ-NP-2D (55-915035, A(14-01)08dcc, land surface 4,786.42 ft MSL)

Figure 7: Hydrographs of GW levels for Monitoring Wells PZ-NP-2S and PZ-NP-2D

(a) PZ-NP-3S (55-915036, A(14-01)08dbd, land surface 4,802.55 ft MSL)

(b) PZ-NP-3D (55-915036, A(14-01)08dbd, land surface 4,802.55 ft MSL)

Figure 8: Hydrographs of GW levels for Monitoring Wells PZ-NP-3S and PZ-NP-3D

3.3 Storm Flow Monitoring

Notable runoff events in 2024 occurred during the summer monsoon season. A storm on July 14th, 2024 took out the berms. The In-Channel Site was without berms and considered non-operational from July 14th until November 6th of 2024.

3.4 Effluent Flows at Terminus of Facility and Berm Inspections

Visual inspections for effluent flows are made every 2 weeks at the In-Channel CUSF terminus near the ranch road in Section 27. Visual inspections are increased during rain events or after flow is de-tected at the Terminus. Flow at the terminus was observed during the stormwater flow events and during periods when the berms were out of compliance (July 14th-November 6th). Berms were re-constructed in early November and were in continuous operation through the rest of 2024. Table 6 documents the observations of berm compliance and flow at the Terminus.

Table 6: Surface Flow, Berm Condition and Effluent Flow at Terminus, In-Channel Site, Upper Agua Fria Recharge Facility

Date Type of Inspection

Flow in Agua Fria Above

In-Channel Site

Flow in Grapevine

Gulch

Berm Condition Flow Past Terminus

1/5/2024 Visual No No In Compliance No 1/19/2024 Visual No No In Compliance No 2/2/2024 Visual No No In Compliance No

2/16/2024 Visual No No In Compliance No 3/1/2024 Visual No No In Compliance No

3/13/2024 Visual No No In Compliance No 3/14/2024 Visual No No In Compliance No 3/15/2024 Visual No No In Compliance No 3/16/2024 Visual No No In Compliance No 3/17/2024 Visual No No In Compliance No 3/18/2024 Visual No No In Compliance No 3/24/2024 Visual No No In Compliance No 3/29/2024 Visual No No In Compliance No 3/31/2024 Visual No No In Compliance No 4/12/2024 Visual No No In Compliance No 4/26/2024 Visual No No In Compliance No 5/10/2024 Visual No No In Compliance No 5/24/2024 Visual No No In Compliance No 6/7/2024 Visual No No In Compliance No

6/21/2024 Visual No No In Compliance No 7/5/2024 Visual No No In Compliance No

7/14/2024 Visual Yes Yes Out of Complaince Yes 7/19/2024 Visual No No Out of Complaince Yes 8/2/2024 Visual No No Out of Complaince Yes

8/16/2024 Visual No No Out of Complaince Yes 8/30/2024 Visual No No Out of Complaince Yes 9/13/2024 Visual No No Out of Complaince Yes 9/27/2024 Visual No No Out of Complaince Yes 10/11/2024 Visual No No Out of Complaince Yes 10/25/2024 Visual No No Out of Complaince Yes 11/6/2024 Visual No No In Compliance No 11/8/2024 Visual No No In Compliance No 11/22/2024 Visual No No In Compliance No 12/6/2024 Visual No No In Compliance No 12/20/2024 Visual No No In Compliance No

3.5 Occurrence of Water in Channels as ”Daylighting”

Visual inspections for the appearance of water at the North Plains Site in the Agua Fria River and Coyote Wash channels near the piezometer wells PZ-NP-1, PZ-NP-2 and PZ-NP-3 were conducted at least every two weeks. If the presence of water (not related to storm flow) is observed, the day-lighting monitoring and response plan documented as permit condition 1.c. goes into effect. A sin-gle event of daylighitng was observed on October 11th, 2024. The event occurred due to the test-ing of Basin 11B. During the testing of Basin 11B more frequent monitoring occurred with the goal to quickly notice any daylighting. After several deliveries with no daylighting, daylighting did occur on October 11th. We presume this to be due to a mound effect under Basin 11B and its relatively close distance to the Coyote Wash channel. No flow or seepage was observed on October 11th, but a couple pools of water were present in the Coyote Wash near Basin 11B. The response plan de-fines this event as ”moderate” since there was pooling of water. Actual seepage of water was not observed, but we are confident in restaining it to only a day or two due to the frequent inspections performed. Since, the daylighting ceased within 7 days, no reporting or further action was required, as stated by the daylight monitoring and response plan. Increased daylighting monitoring and water levels at the piezometers occurred for the next two weeks. Table 7 documents the daylighting moni-toring dates and observations.

Table 7: Observation of Daylighting at North Plains Site

Date Agua Fria near PZ-NP-1 Coyote Wash near PZ-NP-3 Agua Fria near PZ-NP-2 1/2/2024 No No No 1/16/2024 No No No 1/30/2024 No No No 2/13/2024 No No No 2/27/2024 No No No 3/12/2024 No No No 3/26/2024 No No No 4/9/2024 No No No 4/23/2024 No No No 5/7/2024 No No No 5/21/2024 No No No 6/4/2024 No No No 6/18/2024 No No No 7/2/2024 No No No 7/16/2024 No No No 7/30/2024 No No No 8/13/2024 No No No 8/27/2024 No No No 9/10/2024 No No No 9/24/2024 No No No 10/8/2024 No No No

10/11/2024 No Yes, Moderate No 10/14/2024 No No No 10/18/2024 No No No 10/21/2024 No No No 10/25/2024 No No No 11/5/2024 No No No

11/19/2024 No No No 12/3/2024 No No No

12/17/2024 No No No 12/31/2024 No No No

3.6 Open Water Surface Evaporation

Permit condition 4.d.ii and 4.d.ix specifies that the permittee shall estimate evaporation from the wetted surface of the facility on a monthly basis using the maximum evaporation rating curve and the applicable adjustment factor specified in Evaporation from Open Water Surfaces in Arizona by Keith R. Cooley (1970). The calculation involves multiplying the maximum monthly evaporation curve (inches/day) by a regional adjustment factor and the number of days in each month. Accord-ing to Cooley, the regional adjustment factor for Prescott Valley is 0.83, the monthly evaporation curve and evaporation computations are provided in Table 8.

In 2024, the In-Channel Site was operational and observed as ”wet” for 251 days. It is estimated that 12.81 acre-feet of water was evaporated from the In-Channel Site during these 251 days. This calculation is performed by using the estimated surface area of 3.2 acres, monthly evaporation curve and Cooley adjustment factor (see Table A2 for daily calculations).

Table 8: In-Channel Evaporative Losses

Month Evaporation Curve Value

(in/day)

Adjusted Evaporation Value (acre-feet/day) 1

No. of Days in Operation

Evaporation (acre-feet)

Jan 0.12 0.027 31 0.82 Feb 0.15 0.033 29 0.96 Mar 0.22 0.049 31 1.51 Apr 0.28 0.062 30 1.86 May 0.35 0.077 31 2.40 Jun 0.38 0.084 30 2.52 Jul 0.38 0.084 13 1.09 Aug 0.34 0.075 0 0.00 Sep 0.29 0.064 0 0.00 Oct 0.22 0.049 0 0.00 Nov 0.16 0.035 25 0.89 Dec 0.11 0.024 31 0.75 Total 251 12.81 1 Curve value x (0.83) x 3.2 acres / 12 inches

The total amount of water estimated to have evaporated from the wetted surface area at the North Plains Site is 45.28 acre-feet during the reporting year. The summarized monthly evaporation val-ues are listed in Table 9.

Basin ID Maximum

Basin Wetted Area (acres)

January Wetted Days

Evap (AF) Febuary Wetted

Days Evap (AF)

March Wetted Days

Evap (AF)

Basin 1 2.16 16 0.3 14 0.3 31 1.0 Basin 2 5.39 0 0.0 0 0.0 0 0.0 Basin 3 6.64 0 0.0 0 0.0 4 0.4 Basin 4 4.25 31 1.1 29 1.4 30 1.8 Basin 5 3.48 0 0.0 10 0.4 23 1.2 Basin 11 1.72 0 0.0 0 0.0 0 0.0 Basin 12 1.93 0 0.0 0 0.0 0 0.0

1.3 2.1 4.4

7.8

Basin ID Maximum

Basin Wetted Area (acres)

April Wetted Days

Evap (AF) May Wetted

Days Evap (AF)

June Wetted

Days Evap (AF)

Basin 1 2.16 30 1.3 31 1.6 30 1.7 Basin 2 5.39 0 0.0 0 0.0 0 0.0 Basin 3 6.64 9 1.2 3 0.5 0 0.0 Basin 4 4.25 30 2.5 31 3.2 3 0.3 Basin 5 3.48 12 0.8 6 0.5 0 0.0 Basin 11 1.72 0 0.0 0 0.0 0 0.0 Basin 12 1.93 0 0.0 0 0.0 0 0.0

5.7 5.8 2.0

13.6

Basin ID Maximum

Basin Wetted Area (acres)

July Wetted Days

Evap (AF) August Wetted

Days Evap (AF)

September Wetted

Days Evap (AF)

Basin 1 2.16 31 1.8 31 1.6 30 1.3 Basin 2 5.39 0 0.0 0 0.0 0 0.0 Basin 3 6.64 0 0.0 0 0.0 3 0.4 Basin 4 4.25 23 2.6 26 2.6 30 2.6 Basin 5 3.48 0 0.0 23 1.9 21 1.5 Basin 11 1.72 0 0.0 0 0.0 0 0.0 Basin 12 1.93 0 0.0 0 0.0 2 0.1

4.3 6.0 5.8

16.2

Table 9: North Plains Evaporation

1st Quarter Total Evap (AF) =

2nd Quarter Total Evap (AF) =

3rd Quarter Total Evap (AF) =

Basin ID Maximum

Basin Wetted Area (acres)

October Wetted

Days Evap (AF)

November Wetted

Days Evap (AF)

December Wetted

Days Evap (AF)

Basin 1 2.16 31 1.0 30 0.7 31 0.5 Basin 2 5.39 0 0.0 0 0.0 0 0.0 Basin 3 6.64 3 0.3 3 0.2 2 0.1 Basin 4 4.25 31 2.1 30 1.4 31 0.9 Basin 5 3.48 0 0.0 0 0.0 0 0.0 Basin 11 1.72 3 0.1 0 0.0 0 0.0 Basin 12 1.93 6 0.2 7 0.1 9 0.1

3.7 2.5 1.6

7.8

45.28

0.83

4th Quarter Total Evap (AF) =

Annual Total Evap (AF) =

Cooley Adj. Fac

3.7 Transpiration Losses

Permit condition 4.d.iv states that the permittee shall estimate transpiration losses within the active constructed facility on a monthly basis using the Blaney-Criddle Method with a reference crop coef-ficient appropriate for the type of vegetation identified by the vegetation photo monitoring (Appendix B) along the Agua Fria River channel. The Blaney-Criddle formula multiplies a reference crop “k” factor by a climatic factor “f”. The climatic factor is calculated by multiplying the mean monthly tem-perature by percent of daylight hours and dividing by 100. The reference crop “k” factor for Blue Panic Grass was selected to be representative of the vegetation growing in the channel due to simi-lar length of growing season and approximate equal leaf density and crop height to vegetation found in the Agua Fria River channel. The vegetated area of the In-Channel Site that is supplied water from effluent seepage is estimated to be approximately 5 feet from the edge of the wetted perime-ter, resulting in 2.67 acres (2.2 miles x 5 feet x 2 x 5280 feet/mile ÷ 43560 ft2/acre) of vegetation-induced transpiration losses. The calculations for transpiration losses are provided in Table 10.

During the reporting period, 4.72 acre-feet of effluent was lost to transpiration during the 251 days of recharge operation (see Table A2 for daily calculations).

Table 10: Transpiration Losses – Upper Agua Fria Recharge Facility, In-Channel Site

Month Percent Daylight

Hours ”p”

Mean Temp oF

Prescott ”t”

(p x t) / 100

Reference Crop ”k”

Transpiration Loss (acre-feet/day)1

No. of Days in Operation

Monthly Transpiration

Loss (acre-feet)

Jan 7.1 36 2.556 0.00 0.000 31 0.00 Feb 6.91 39 2.695 0.00 0.000 29 0.00 Mar 8.35 43.7 3.649 0.00 0.000 31 0.00 Apr 8.8 50.5 4.444 0.93 0.031 30 0.92 May 9.71 58 5.632 1.07 0.043 31 1.34 Jun 9.71 67.3 6.535 1.05 0.051 30 1.53 Jul 9.88 73.2 7.232 1.11 0.058 13 0.75 Aug 9.34 71 6.631 1.06 0.050 0 0.00 Sep 8.35 65.1 5.436 0.92 0.037 0 0.00 Oct 7.9 54.6 4.313 0.82 0.025 0 0.00 Nov 7.02 43.9 3.082 0.32 0.007 25 0.18 Dec 6.93 36.9 2.557 0.00 0.000 31 0.00 Total 251 4.72 1 Assumes 2.67 acres of vegatation

3.8 Other Losses

On August 12th, 2024 we became aware of an operational error that caused Basin 5 to be over-filled. This overfilling of Basin 5 caused seepage out of the side of the basin. ADWR was notified of the incident on August 12th and the Town was instructed to subtract the volume of water that seeped out of Basin 5 from the delivered volume. The flow from Basin 5 was monitored on a daily basis until the seepage ceased on August 25th. The water level of Basin 5 was monitored closely in order to estimate how much water in Basin 5 was not infiltrated or evaporated. We estimate that

2.63 acre-feet of water was lost to seepage. This volume was subtrated from the total delivered vol-ume for the month of August (see Appendix Table A5). This error was addressed with our operators and corrective action was taken to ensure improved communication and redundancy. A copy of the notification to ADWR and the instructions provided are included as Appendix C of this report.

The volume of water that was lost to seepage was estimated by taking the total drop in water level in Basin 5 from when the seepage was noticed until it ceased (2.75 ft) minus the volume that would have been infiltrated (0.3042 ft) and evaporated (1.69 ft). The remainder is the estimate for how many feet of water seeped out of Basin 5 (0.76 ft). Multiplying that by the maximum wetted area yields the volume in acre-feet. The infiltration estimate was calculated using the lowest value from the two previous quarters in 2024 (0.13 ft/day). The estimated evaporation loss was calculated us-ing the adjusted Cooley Maximum Rate (0.83 ×0.028226 ft/day). The calculation goes as follows.

Maximum wetted area of Basin 5 (A) = 3.48 acres Days till seepage ceased (t)= 13 days Evaporation rate (e)= 0.0234 ft/day Infiltration rate (i)= 0.13 ft/day Water level drop in Basin 5 (August 12th-August 25th) (x)= 2.75 ft

Total evaporation (E)=e × t = 0.0234 ft/day × 13 days= 0.3042 ft Total infiltration (I)=i × t = 0.13 ft/day × 13 days= 1.69 ft Water level drop due to seepage (y) = (x - E - I) = (2.75 ft - 0.3042 ft - 1.69 ft) = 0.7555 ft Volume lost to seepage (V) = y × A = 0.7555 ft × 3.48 acres = 2.63 acre-feet

3.9 Infiltration Rates

The average infiltration rate for the In-Channel Site is calculated as total recharged volume divided by estimated surface area of infiltration, divided by the number of operational days. Total surface area of infiltration is estimated to be 139,390 square feet, or 3.2 acres. In 2024, the In-Channel Site operated for 251 days. During this period, the total recharged volume was 1,338.00 acre-feet. The average infiltration rate for the reporting period is 1.67 feet/day (1,338.00 acre-feet ÷ 251 days ÷ 3.2 acres).

Infiltration rates at the North Plains Site are calculated on a monthly basis by dividing the recharged volume by the total maximum wetted area for the month (days ”wet” × maximum wetted area). The 2024 infiltration rates are displayed in Table 11.

Table 11: Infiltration Rates for North Plains Basins

Month Net Recharge Volumes (acre-ft)

Total Wetted Area (acres)

Infiltration Rate(feet/day)

Quarterly Avg Infiltration Rate (ft/day)

January 21.87 166.31 0.13 February 23.13 188.29 0.12

March 39.73 301.06 0.13 0.13 April 40.80 293.82 0.14 May 27.14 239.51 0.11 June 18.65 77.55 0.24 0.14 July 15.40 164.71 0.09

August 28.62 257.50 0.11 September 33.82 289.16 0.12 0.11

October 44.78 235.37 0.19 November 40.62 225.73 0.18 December 42.79 229.36 0.19 0.19

Totals 377.35 2668.37 0.14

3.10 Vegetation Monitoring

Vegetation monitoring for transpiration estimates at the In-Channel Site is accomplished by photo-monitoring, as required annually under the CUSF permit (71-220048.0003). Evidence of vegetation consists of photographs taken at four monitoring points looking both upstream and downstream of the Agua Fria River channel.

Photo monitoring is required to be conducted annually during the summer growing season. Ap-pendix B contains all vegetation monitoring photos from all four monitoring points taken on August 2nd, 2024. Vegetation composition and area remain unchanged from previous years.

3.11 Baseflow at USGS Humboldt Station (No. 09512450)

The USGS gauging station on the Agua Fria River near Humboldt (No. 09512450) was established in January 2000 to monitor base flows in the Agua Fria River at the boundary of the Prescott Active Management Area (AMA). The Town of Prescott Valley is the Joint Funding Partner with the U.S.

Geologic Survey for this gage. Daily mean and monthly median streamflows for the USGS Hum-boldt gage are summarized in Table 12 for the period January through December 2024. A hydro-graph of daily and monthly mean streamflow for the USGS Humboldt gage is shown on Figure 9. A hydrograph and monthly median streamflow for the USGS Humboldt gage is shown in Figure 10.

Table 12: Summary of Provisional Daily Mean and Monthly Median Streamflow, January through December 2024, USGS Humboldt Station (No. 09512450) Yavapai County, Arizona (in cfs)

Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 4.69 4.70 5.01 5.77 3.04 1.66 0.93 3.76 2.17 1.51 2.05 3.25 2 4.70 4.77 5.08 5.65 3.02 1.63 0.78 4.07 1.92 1.55 2.18 3.29 3 4.70 4.88 5.31 5.53 2.97 1.51 0.81 4.31 1.68 1.48 2.30 3.45 4 4.71 4.76 5.32 5.34 2.92 1.47 0.86 5.26 1.43 1.43 2.25 3.30 5 4.71 4.97 5.42 4.90 2.81 1.39 0.81 6.89 1.15 1.43 2.30 3.15 6 4.71 11.60 5.92 4.75 2.78 1.32 0.69 10.80 1.13 1.41 2.57 3.13 7 4.72 25.70 6.14 4.82 2.72 1.23 0.58 13.30 1.21 1.40 2.49 3.13 8 4.72 18.40 6.13 4.83 2.66 1.18 0.52 8.55 1.19 1.41 2.47 3.24 9 4.73 12.20 6.11 4.58 2.60 1.22 0.48 5.19 1.17 1.39 2.45 3.32

10 4.73 7.94 6.10 4.35 2.56 1.16 0.45 4.21 1.14 1.37 2.30 3.35 11 4.74 6.09 6.08 3.96 2.48 1.07 0.48 4.54 1.13 1.38 2.32 3.33 12 4.74 5.63 6.07 3.87 2.43 1.01 0.50 4.68 1.10 1.41 2.37 3.28 13 4.75 5.44 6.05 3.70 2.39 1.04 0.51 3.65 1.10 1.47 2.54 3.17 14 4.75 5.44 6.04 3.54 2.40 1.05 92.90 3.70 1.10 1.44 2.61 3.18 15 4.76 5.42 6.03 3.41 2.36 0.93 9.87 4.49 1.10 1.43 2.60 3.23 16 4.76 5.08 6.01 3.34 2.25 0.88 3.29 3.45 1.09 1.44 2.81 3.32 17 4.77 5.63 6.00 3.29 2.14 0.88 14.40 3.81 1.10 1.51 2.94 3.50 18 4.77 5.65 5.98 3.20 2.05 0.88 6.34 11.00 1.11 1.66 2.95 3.60 19 4.77 5.65 5.97 3.17 2.02 0.91 4.43 5.18 1.09 1.81 3.05 3.34 20 4.78 5.69 5.95 3.13 2.09 0.86 4.45 4.56 1.14 1.83 3.09 3.25 21 4.78 5.50 5.94 3.13 2.16 0.75 4.94 42.60 1.26 1.83 2.91 3.22 22 4.79 5.65 5.92 3.10 2.17 0.73 4.14 4.73 1.34 1.86 2.84 3.08 23 4.79 5.67 5.91 3.08 2.18 0.77 4.34 4.38 1.36 1.86 2.94 3.10 24 4.80 5.68 5.89 3.22 2.10 0.96 4.32 4.14 1.29 1.83 3.21 3.12 25 4.80 5.22 5.88 3.36 2.00 1.71 3.83 3.89 1.27 1.78 3.25 3.08 26 4.81 5.47 5.86 3.43 1.97 1.12 4.11 3.64 1.29 1.76 3.45 2.94 27 4.81 5.28 5.85 3.48 1.87 0.85 3.60 3.40 1.28 1.74 3.51 2.86 28 4.82 5.19 5.83 3.40 1.78 0.75 3.67 3.15 1.27 1.80 3.46 2.90 29 4.82 4.95 5.82 3.20 1.70 0.66 3.42 2.91 1.31 1.84 3.25 2.96 30 4.81 5.80 3.12 1.67 0.62 3.87 2.66 1.44 1.95 3.22 2.91 31 4.72 5.79 1.62 3.79 2.41 2.00 2.90

Median 4.76 5.50 5.92 3.46 2.25 1.03 3.60 4.31 1.20 1.51 2.71 3.22 Max 4.82 25.70 6.14 5.77 3.04 1.71 92.90 42.60 2.17 2.00 3.51 3.60 cfs = cubic feet per second Median values for months with an even number of days are an average of the two median values.

Provisional daily mean streamflow data were obtained from U.S. Geological Survey website (https://waterdata.usgs.gov/monitoring-location/09512450)

Figure 9: Hydrograph of Daily and Monthly Mean Streamflow Discharge, Agua Fria River at Humboldt (USGS 09512450)

Figure 10: Hydrograph of Monthly Median Streamflow Discharge, Agua Fria River at Humboldt (USGS 09512450)

Appendix A - Supplemental Tables

Date

Total Eff.

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

1/1/2024 2.28 0.00 0.04 2.24 0.00

1/2/2024 2.51 0.00 0.06 2.45 0.00

1/3/2024 2.33 0.00 0.08 2.25 0.00

1/4/2024 2.59 0.00 0.11 2.48 0.00

1/5/2024 2.45 0.00 0.08 2.37 0.00

1/6/2024 2.51 0.00 0.09 2.42 0.00

1/7/2024 2.30 0.66 0.03 1.62 0.00

1/8/2024 2.62 0.00 0.03 2.59 0.00

1/9/2024 2.53 0.00 0.05 2.48 0.00

1/10/2024 2.49 0.04 0.09 2.36 0.00

1/11/2024 2.39 0.37 0.06 1.96 0.00

1/12/2024 2.48 0.00 0.04 2.44 0.00

1/13/2024 2.38 0.00 0.05 2.33 0.00

1/14/2024 2.42 0.00 0.03 2.39 0.00

1/15/2024 2.63 0.00 0.06 2.57 0.00

1/16/2024 2.41 0.00 0.07 2.34 0.00

1/17/2024 2.67 0.00 0.11 0.00 2.56

1/18/2024 2.37 0.00 0.07 2.30 0.00

1/19/2024 2.47 0.00 0.07 2.40 0.00

1/20/2024 2.37 0.00 0.07 0.00 2.30

1/21/2024 2.37 0.00 0.02 2.08 0.27

1/22/2024 2.56 0.00 0.02 2.54 0.00

1/23/2024 2.61 0.74 0.09 1.78 0.00

1/24/2024 2.45 0.03 0.09 2.33 0.00

1/25/2024 2.34 0.00 0.04 2.30 0.00

1/26/2024 2.46 0.00 0.09 2.37 0.00

1/27/2024 2.91 0.40 0.08 0.00 2.43

1/28/2024 2.10 0.00 0.02 2.08 0.00

1/29/2024 2.42 0.00 0.03 2.39 0.00

1/30/2024 2.67 0.00 0.10 2.57 0.00

1/31/2024 2.55 0.00 0.08 2.47 0.00

2/1/2024 2.54 0.00 0.10 2.44 0.00

2/2/2024 2.53 0.00 0.07 0.52 1.94

2/3/2024 2.48 0.02 0.07 2.39 0.00

2/4/2024 2.50 0.00 0.02 2.48 0.00

2/5/2024 2.52 0.00 0.04 2.48 0.00

Table A1: 2024 Daily Effluent Production and Deliveries, Upper Agua Fria Recharge Facility

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

2/6/2024 2.72 0.00 0.16 2.56 0.00

2/7/2024 2.92 0.00 0.16 2.76 0.00

2/8/2024 3.05 0.00 0.15 2.90 0.00

2/9/2024 2.83 0.00 0.14 2.69 0.00

2/10/2024 2.58 0.00 0.13 2.45 0.00

2/11/2024 2.63 0.00 0.11 2.52 0.00

2/12/2024 2.65 0.00 0.04 2.61 0.00

2/13/2024 2.70 0.00 0.13 2.57 0.00

2/14/2024 2.63 0.00 0.15 2.48 0.00

2/15/2024 2.64 0.00 0.15 2.49 0.00

2/16/2024 2.38 0.00 0.05 0.37 1.96

2/17/2024 2.47 0.00 0.07 2.40 0.00

2/18/2024 2.61 0.00 0.11 2.50 0.00

2/19/2024 2.53 0.00 0.04 2.49 0.00

2/20/2024 2.66 0.00 0.03 2.63 0.00

2/21/2024 2.74 0.02 0.16 2.56 0.00

2/22/2024 2.48 0.00 0.10 2.38 0.00

2/23/2024 2.64 0.00 0.11 2.53 0.00

2/24/2024 2.56 1.00 0.08 1.48 0.00

2/25/2024 2.51 0.55 0.13 1.83 0.00

2/26/2024 2.57 0.00 0.12 2.45 0.00

2/27/2024 2.72 0.00 0.17 1.58 0.97

2/28/2024 2.52 0.00 0.15 1.38 0.99

2/29/2024 2.46 0.00 0.10 0.00 2.36

3/1/2024 2.54 0.00 0.10 0.56 1.88

3/2/2024 2.60 1.17 0.09 1.34 0.00

3/3/2024 2.38 0.08 0.03 2.27 0.00

3/4/2024 2.46 1.06 0.04 1.36 0.00

3/5/2024 2.71 0.01 0.16 2.54 0.00

3/6/2024 2.56 0.00 0.15 2.41 0.00

3/7/2024 2.46 0.00 0.10 1.73 0.63

3/8/2024 2.48 0.00 0.09 0.75 1.64

3/9/2024 2.52 0.00 0.12 2.40 0.00

3/10/2024 2.51 0.73 0.07 1.72 0.00

3/11/2024 2.41 0.00 0.06 2.35 0.00

3/12/2024 2.73 1.03 0.13 1.58 0.00

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

3/13/2024 2.59 0.07 0.13 2.39 0.00

3/14/2024 2.34 0.21 0.05 1.41 0.67

3/15/2024 2.42 0.00 0.05 1.53 0.84

3/16/2024 2.41 0.00 0.03 2.38 0.00

3/17/2024 2.64 0.00 0.04 2.60 0.00

3/18/2024 2.58 0.00 0.09 2.49 0.00

3/19/2024 2.74 0.00 0.06 2.68 0.00

3/20/2024 2.59 0.01 0.12 0.00 2.46

3/21/2024 2.58 0.00 0.14 2.44 0.00

3/22/2024 2.46 0.00 0.08 0.60 1.78

3/23/2024 2.48 0.01 0.09 2.38 0.00

3/24/2024 2.62 0.00 0.04 2.58 0.00

3/25/2024 2.47 0.00 0.03 2.44 0.00

3/26/2024 2.78 0.71 0.15 1.92 0.00

3/27/2024 2.44 0.00 0.10 2.34 0.00

3/28/2024 2.51 0.00 0.09 0.06 2.36

3/29/2024 2.25 0.00 0.07 2.18 0.00

3/30/2024 2.73 0.00 0.07 0.55 2.11

3/31/2024 2.53 0.81 0.03 1.68 0.00

4/1/2024 2.51 0.00 0.04 2.47 0.00

4/2/2024 3.00 0.01 0.14 2.85 0.00

4/3/2024 2.60 0.00 0.10 2.50 0.00

4/4/2024 2.59 0.00 0.10 2.49 0.00

4/5/2024 2.56 0.19 0.11 0.72 1.54

4/6/2024 2.32 0.72 0.07 1.53 0.00

4/7/2024 2.59 0.00 0.03 2.56 0.00

4/8/2024 2.54 0.00 0.04 2.50 0.00

4/9/2024 2.68 0.48 0.13 2.08 0.00

4/10/2024 2.55 0.55 0.10 1.90 0.00

4/11/2024 2.51 0.28 0.09 0.45 1.69

4/12/2024 2.42 1.37 0.07 0.98 0.00

4/13/2024 2.39 0.53 0.06 0.21 1.59

4/14/2024 2.51 0.45 0.13 1.08 0.85

4/15/2024 2.81 0.28 0.08 2.45 0.00

4/16/2024 2.69 0.28 0.14 2.27 0.00

4/17/2024 2.58 0.52 0.10 1.96 0.00

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

4/18/2024 2.54 0.63 0.11 0.12 1.68

4/19/2024 2.61 0.38 0.10 0.23 1.90

4/20/2024 2.61 0.38 0.11 1.59 0.53

4/21/2024 2.61 0.41 0.08 2.12 0.00

4/22/2024 2.47 0.41 0.11 1.95 0.00

4/23/2024 2.91 0.39 0.19 1.56 0.78

4/24/2024 2.49 0.44 0.10 1.95 0.00

4/25/2024 2.26 0.53 0.10 1.63 0.00

4/26/2024 2.74 0.37 0.11 0.38 1.88

4/27/2024 2.60 0.23 0.10 1.29 0.98

4/28/2024 2.31 0.00 0.03 2.28 0.00

4/29/2024 2.58 0.32 0.04 2.22 0.00

4/30/2024 2.77 0.37 0.18 0.49 1.73

5/1/2024 2.61 0.48 0.13 2.01 0.00

5/2/2024 2.63 0.43 0.14 2.06 0.00

5/3/2024 2.53 0.37 0.10 1.08 0.99

5/4/2024 2.50 0.48 0.09 1.92 0.00

5/5/2024 2.50 0.51 0.03 1.97 0.00

5/6/2024 2.62 0.69 0.04 1.89 0.00

5/7/2024 2.92 0.64 0.19 2.09 0.00

5/8/2024 2.42 0.52 0.10 0.76 1.04

5/9/2024 2.64 0.60 0.16 1.88 0.00

5/10/2024 2.50 0.36 0.11 0.14 1.89

5/11/2024 2.50 0.39 0.10 1.60 0.41

5/12/2024 2.45 0.41 0.04 2.00 0.00

5/13/2024 2.66 0.48 0.06 2.11 0.00

5/14/2024 2.66 0.54 0.14 0.83 1.15

5/15/2024 2.60 0.73 0.14 1.73 0.00

5/16/2024 2.55 1.23 0.12 1.19 0.00

5/17/2024 2.63 1.98 0.15 0.50 0.00

5/18/2024 2.65 0.96 0.09 0.15 1.45

5/19/2024 2.47 0.54 0.04 0.17 1.72

5/20/2024 2.43 0.44 0.03 0.44 1.52

5/21/2024 2.77 0.82 0.19 1.76 0.00

5/22/2024 2.66 0.44 0.14 2.08 0.00

5/23/2024 2.53 0.49 0.13 1.91 0.00

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

5/24/2024 2.49 0.49 0.10 1.90 0.00

5/25/2024 2.53 0.46 0.11 1.96 0.00

5/26/2024 2.47 0.56 0.04 1.87 0.00

5/27/2024 2.41 0.46 0.05 1.90 0.00

5/28/2024 2.91 0.65 0.19 2.07 0.00

5/29/2024 2.54 0.52 0.11 1.92 0.00

5/30/2024 2.57 0.59 0.12 1.86 0.00

5/31/2024 2.50 1.81 0.12 0.00 0.57

6/1/2024 2.55 0.59 0.11 1.19 0.66

6/2/2024 2.50 0.69 0.06 1.75 0.00

6/3/2024 2.25 0.46 0.13 1.67 0.00

6/4/2024 3.04 0.51 0.17 2.37 0.00

6/5/2024 2.54 0.57 0.13 1.51 0.33

6/6/2024 2.59 0.76 0.11 1.72 0.00

6/7/2024 2.58 0.59 0.16 1.54 0.30

6/8/2024 2.49 0.72 0.10 1.67 0.00

6/9/2024 2.53 0.72 0.04 1.78 0.00

6/10/2024 2.92 0.42 0.04 2.46 0.00

6/11/2024 2.42 0.52 0.04 1.03 0.82

6/12/2024 2.62 0.78 0.05 1.67 0.12

6/13/2024 2.40 0.50 0.04 1.56 0.29

6/14/2024 2.38 1.63 0.06 0.46 0.22

6/15/2024 2.79 1.60 0.12 1.07 0.00

6/16/2024 2.65 2.13 0.04 0.48 0.00

6/17/2024 2.10 1.23 0.04 0.83 0.00

6/18/2024 2.79 1.27 0.18 1.34 0.00

6/19/2024 2.50 0.49 0.16 1.42 0.43

6/20/2024 2.69 0.60 0.20 1.54 0.35

6/21/2024 2.56 0.51 0.16 1.61 0.28

6/22/2024 2.63 0.56 0.11 1.61 0.34

6/23/2024 2.42 0.56 0.04 1.60 0.22

6/24/2024 2.59 0.40 0.05 1.98 0.16

6/25/2024 2.82 0.43 0.15 2.08 0.16

6/26/2024 2.67 0.00 0.18 2.44 0.05

6/27/2024 2.60 0.42 0.13 1.95 0.10

6/28/2024 2.58 0.67 0.12 0.55 1.23

Discharge from ATF

Measured by Meter

(MGD)

Direct

Reuse

(Parks &

Golf

Course)

(MGD)

Utility

Water

(Effluent

Used in

ATF) (MGD)

Effluent

Discharge to

Agua Fria

Channel

(Eff.

Discharge-

Reuse-

Utility)

(MGD)

Effluent

Discharge to Basins

(North

Plains)

(MGD)

6/29/2024 2.45 0.62 0.09 1.16 0.58

6/30/2024 2.74 0.47 0.15…