SB X7-7 Table 0: Units of Measure Used in 2020 UWMP*
Million Gallons
*The unit of measure must be consistent throughout the UWMP.
NOTES: Method for population estimate described in detail in the City of Arcata 2020 Urban Water Management Plan, Appendix E.
SB X7-7 Table 2: Method for 2020 Population Estimate
Method Used to Determine 2020 Population
1. Department of Finance (DOF) or
American Community Survey (ACS)
3. DWR Population Tool
4. Other
DWR recommends pre-review
2. Persons-per-Connection Method
2020 20,095
SB X7-7 Table 3: 2020 Service Area Population
2020 Compliance Year Population
Exported
Water
Change in
Dist.
System
Storage
(+/-)
Indirect
Recycled
Water
Water
Delivered
for
Agricultural
Use
Process
Water
614 - - 614
SB X7-7 Table 4: 2020 Gross Water Use
2020 Volume
Into
Distribution
System
2020 Gross
Water Use
2020 Deductions
Compliance
Year 2020
Volume
Entering
Distribution
System
Meter Error
Adjustment
Optional
(+/-)
Corrected Volume
Entering Distribution
System
607 - 607
Volume
Entering
Distribution
System
Meter Error
Adjustment
Optional
(+/-)
Corrected Volume
Entering Distribution
System
7 7
Volume
Entering
Distribution
System
Meter Error
Adjustment
Optional
(+/-)
Corrected Volume
Entering Distribution
System
0 0
NOTES: Wymore intertie serves as a connection to HBMWD, via the McKinleville Services District, and was installed in 2014. It is used as an alternate means of getting water into the system if there is an emergency or loss of other connections with HBMWD. A 5/8-inch metered bypass was installed around the main shut-off valve to allow the water to turn over and maintain a chlorine residual.
Name of Source Humboldt Bay Municipal Water District- Aldergrove This water source is (check one):
The supplier's own water source
A purchased or imported source
Compliance Year 2020
NOTES: The Volume Entering Distribution System at Aldergrove was 0.07 MG in 2020. This volume displays as 0 MG due to cell formatting.
This water source is (check one):
The supplier's own water source
A purchased or imported source
Compliance Year 2020
SB X7-7 Table 4-A: 2020 Volume Entering the Distribution System(s), Meter Error Adjustment
Complete one table for each source.
Name of Source Humboldt Bay Municipal Water District-Alliance This water source is (check one):
The supplier's own water source
A purchased or imported source
Compliance Year 2020
Name of Source Wymore Intertie
2020 Gross
Water 2020 Population 2020 GPCD
614 20,095 84
SB X7-7 Table 5: 2020 Gallons Per Capita Per Day
(GPCD)
Extraordinary
Events1
Weather
Normalization1
Economic
Adjustment1
84 - - - - 84 113 YES
1 All values are reported in GPCD
2 2020 Confirmed Target GPCD is taken from the Supplier's SB X7-7 Verification Form Table SB X7-7, 7-F.
SB X7-7 Table 9: 2020 Compliance
Optional Adjustments to 2020 GPCD
Did Supplier
Achieve
Targeted
Reduction
for 2020?
Actual 2020
GPCD1
2020 Confirmed
Target GPCD 1, 2
TOTAL
Adjustments1
Adjusted 2020
GPCD 1
(Adjusted if
applicable)
Enter "0" if Adjustment Not Used
2025 Gross Water
Fm SB X7-7 Table 4
2025 Population Fm
SB X7-7 Table 3 2025 GPCD
592 21,185 77
SB X7-7 Table 5: Gallons Per Capita Per Day (GPCD)
Water Code Section 10608.20 (e) and 10608.20 (h)(1)(2)
NOTES:
Service Area GPCD calculated for 2025
Appendix J
Annual Water Shortage and Drought Assessment
Submittal Tables: 2025-2026
= From prior tables
= Auto calculated
Use Type Start Year: 2025 Volumetric Unit Used2
: MG
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total by Water Demand Type
Single Family 22.6 20.8 21.3 21.5 18.9 20 22.3 24.1 23 28.2 26.3 23.5 272.5 Multi-Family 7.4 6.6 6.8 7.6 6.4 6.9 7.5 8.3 7.8 9.4 8.6 7.4 90.7 Commercial 6.4 5.8 6 6.5 5.6 6 6.6 7.2 6.8 8.1 7.4 6.4 78.8 Industrial 1.9 1.7 1.7 1.9 1.6 1.7 1.9 2.1 2 2.4 2.2 1.9 23 Institutional/Governmental schools only 2.7 2.4 2.5 2.8 2.4 2.5 2.8 3.1 2.9 3.4 3.2 2.7 33.4 Other Potable unbilled 3 3 3 3 3 3 3 3 3 3 3 3 36
Losses real losses 10.4 10.4 10.4 10.4 10.4 10.4 10.5 10.5 10.5 10.5 10.5 10.5 125.4 Sales to other agencies 1.7 2.3 2.1 1.9 1.4 1.4 1.5 1.2 1.5 1.4 1.6 1.7 19.7 0 0
56.1 53 53.8 55.6 49.7 51.9 56.1 59.5 57.5 66.4 62.8 57.1 679.5 0 0
0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total
0 0
0 0
Table 2: Water Demands1
Projected Water Demands - Volume3
Total by Month (Non-Potable)
1 Projections are based on best available data at time of submitting the report and actual demand volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When opting to provide other than monthly volumes (bi-monthly, quarterly, or annual), please see directions on entering data for Projected Water Demand in the Table Instructions.
Notes: List considered factors impacting demands
Total by Month (Potable)
Additional
Description
(as needed)
Level of
Treatment
for NonPotable
Supplies
Drop-down
list
Drop-down list
May select each use multiple times
These are the only Use Types that will
be recognized by the WUEdata online
submittal tool
(Add additional rows as needed)
Demands Served by Potable Supplies
Demands Served by Non-Potable Supplies
Three years ago total demand
Four years ago total demand
Optional (for comparison purposes)
Last year's total demand
Two years ago total demand
= From prior tables
= Auto calculated
Water Supply Start Year: 2025 Volumetric Unit Used2
: MG
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Total by
Water
Supply Type
Purchased/Imported Water
Produced and
purchased
from HBMWD
98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 1185.96 Groundwater (not desal.)
Mad River
Groundwater
Basin No. 1-
8.01 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0
0 0
0 0
0 0
98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 98.83 1185.96 0 0 0
0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total
0 Table 3: Water Supplies1
Projected Water Supplies - Volume3
Water
Quality
Drop-down
List
Total Right
or Safe
Yield*
(optional)
Additional
Detail on
Water Supply
Drop-down List
May use each category multiple
times.These are the only water
supply categories that will be
recognized by the WUEdata online
submittal tool
(Add additional rows as needed)
Potable Supplies
Non-Potable Supplies
eAR Reported Total Water Supplies
Optional (for comparison purposes)
1 Projections are based on best available data at time of submitting the report and actual supply volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When opting to provide other than monthly volumes (bi-monthly, quarterly, or annual), please see directions on entering data for Projected Water Supplies in the Table Instructions.
Notes: List hydrological and regulatory conditions, infrastructure capabilities, and plausible constraints which may impact the water supplies Total by Month (Potable)
Total by Month (Non-Potable)
= Auto calculated
= For manual input
Table 4(P): Potable Water Shortage Assessment1
Start Year: 2025 Volumetric Unit Used2
: MG
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun3 Total
Anticipated Unconstrained Demand 56.1 53.0 53.8 55.6 49.7 51.9 56.1 59.5 57.5 66.4 62.8 57.1 679.50 Anticipated Total Water Supply 98.8 98.8 98.8 98.8 98.8 98.8 98.8 98.8 98.8 98.8 98.8 98.8 1185.96 Surplus/Shortage w/o WSCP Action 42.7 45.8 45.0 43.2 49.1 46.9 42.7 39.3 41.3 32.4 36.0 41.7 506.5 % Surplus/Shortage w/o WSCP Action 76% 86% 84% 78% 99% 90% 76% 66% 72% 49% 57% 73% 75% State Standard Shortage Level 0 0 0 0 0 0 0 0 0 0 0 0 0 Benefit from WSCP: Supply Augmentation 0.0 <------
Benefit from WSCP: Demand Reduction 0.0 <------
Revised Surplus/Shortage with WSCP 42.7 45.8 45.0 43.2 49.1 46.9 42.7 39.3 41.3 32.4 36.0 41.7 506.5 % Revised Surplus/Shortage with WSCP 76% 86% 84% 78% 99% 90% 76% 66% 72% 49% 57% 73% 75% = Auto calculated
= For manual input
Table 4(NP): Non-Potable Water Shortage Assessment1
Start Year: 2025 Volumetric Unit Used2
: MG
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun3 Total
Anticipated Unconstrained Demand: Non-Potable 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 Anticipated Total Water Supply: Non-Potable 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Surplus/Shortage w/o WSCP Action: Non-Potable 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action: Non-Potable
Benefit from WSCP: Supply Augmentation 0.0 <------
Benefit from WSCP: Demand Reduction 0.0 <------
Revised Surplus/Shortage with WSCP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Revised Surplus/Shortage with WSCP
This row would allow Supplier to include a supply
augmentation action that may ONLY trigger with a particular 'shortage level' selected
1 Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When optional monthly volumes aren't provided, verify Tables 2 and 3 use the same columns for data entry and are reflected properly in Table 4 and make sure to use those same columns to enter the benefits from Planned WSCP Actions. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4 If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5. = From prior tables
Planned WSCP Actions4
1 Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When optional monthly volumes aren't provided, verify Tables 2 and 3 use the same columns for data entry and are reflected properly in Table 4 and make sure to use those same columns to enter the benefits from Planned WSCP Actions. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4 If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5.
This row would allow Supplier to represent the likely
reduction in water use expected by the 'shortage reponse' that is implemented (e.g. limited outdoor irrigation would This row would allow Supplier to include a supply
augmentation action that may ONLY trigger with a particular 'shortage level' selected
This row would allow Supplier to represent the likely
reduction in water use expected by the 'shortage reponse' that is implemented (e.g. limited outdoor irrigation would = From prior tables
Planned WSCP Actions4
July 1, 2025 to June 30, 2026
Enter Amount
(Drop-down
List)
Select % or
Volume Unit
Start Month End Month
0 (No Shortage) No Actions No
NOTES:
Notes Section to be used only
for clarifying details, and not
for listing specific actions.
Actions must be entred into
table rows above.
1 If you plan Supply Augmentation Actions then you must enter WSCP Benefits from Supply Augmentation Actions into Table 4. If you plan Demand Reduction Actions then you must enter WSCP Benefits from Demand Reduction Actions into Table 4. 2 If an Action is planned to be implemented in multiple non-contiguous periods of the year, please make separate entries on multiple rows for the same action spanning the different implementation periods.
Table 5: Planned Water Shortage Response Actions
Add additional rows as needed
How much is action going to
reduce the shortage gap?
(Optional)
When is shortage response
action anticipated to be
implemented2
?
Is action
already being
implemented?
(Y/N)
ACTIONS1: Demand Reduction, Supply
Augmentation, and Other Actions.
(Drop-down List)
These are the only categories that will be
accepted by the WUEdata online submittal
tool. Select those that apply.
Anticipated Shortage
Level
Drop-down List of
State Standard Levels (1 -
6) and Level 0 (No
Shortage)
Appendix K
Humboldt Bay Municipal Water District Water Shortage
Contingency Plan
Appendix L
Draft Water Shortage Emergency Resolution
Sample Resolution No.______________________
Resolution of the City Council of the City of Arcata Declaring a Water Shortage Emergency and Implementing the City’s Water Shortage Contingency Plan
The City Council of the City of Arcata does hereby resolve as follows:
PURSUANT to California Water Code Section 350 et seq., the City council has conducted duly noticed public hearings to establish the criteria under which a water shortage emergency may be declared.
WHEREAS, the City Council of the City of Arcata finds, determines and declares as follows:
• The City is the water purveyor for the City of Arcata and Jacoby Creek Water District. • The demand for water services is not expected to lessen. • When the combined total amount of water supply available to the City from all sources fall at or below the Stage II trigger levels described in the City of Arcata’s and Humboldt Bay Municipal Water District’s 2015 Urban Water Management Plan, the City will declare a water shortage emergency. The water supply would not be adequate to meet the ordinary demands and requirements of water consumers without depleting the City’s water supply to the extent that there may be insufficient water for human consumption, sanitation, fire protection, and environmental requirements. This condition is likely to exist until precipitation and inflow dramatically increases or until water system damage resulting from a disaster are repaired and normal water service is restored.
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Arcata hereby finds, determines, declares and concludes that a water shortage emergency condition exists that threatens the adequacy of the water supply, until the water supply is deemed adequate. After the declaration of a water shortage emergency, the City Council will implement the City’s Water Shortage Contingency Plan and determine the appropriate Action Stage of the plan to implement.
FURTHERMORE, the City Council shall periodically conduct proceedings to determine additional restrictions and regulations which may be necessary to safeguard the adequacy of the water supply for domestic, sanitation, fire protection, and environmental requirements.
Passed, approved and adopted this__________ day of ______________, _________ by the following votes:
Ayes:
Nays:
Absent:
_____________________________________ ____________________________________ Mayor, City of Arcata City Clerk, City of Arcata
Appendix M
Ordinance 1462 Amending Arcata Municipal Code to
Implement Mandatory Water Conservation Measures
ORDINANCE NO. 1462
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF ARCATA AMENDING
THE ARCATA MUNICIPAL CODE TO IMPLEMENT EMERGENCY MANDATORY
WATER CONSERVATION MEASURES
TITLE VII—PUBLIC WORKS
CHAPTER 3—WATER
The City Council of the City of Arcata does ordain as follows:
Section 1: Title VII—Public Works, Chapter 3—Water, of the Arcata Municipal Code is hereby amended by the addition of the following new Section 7741.5 as follows:
SEC. 7741.5 Emergency Water Conservation Requirements.
A. Findings. The City Council for the City of Arcata finds as follows:
1. On January 17, 2014, the Governor issued a proclamation declaring a state of emergency exists in California based on severe drought conditions.
2. On April 25, 2014, the Governor issued a proclamation of a continued state of emergency based on continued drought conditions.
3. On April 1, 2015, based on continued drought conditions, the Governor issued an Executive Order directing the State Water Resources Control Board (“State Board”) to develop regulations that impose restrictions on water service suppliers to achieve statewide a 25 percent reduction in potable urban usage through February 28, 2016; to require commercial industrial, and institutional users to implement water efficiency measures; to prohibit irrigation with potable water of ornamental turf in public street medians; and to prohibit irrigation outside newly constructed homes and buildings with potable water that is not delivered by microspray systems.
4. On May 7, 2015, the State Board adopted amendments to prior State Board emergency water conservation regulations to implement the Governor’s April 1, 2015 Executive Order (“Emergency Regulation”).
5. Pursuant to the Emergency Regulation, the City of Arcata must require its water customers to implement specific statewide water conservation measures, and, additionally, must reduce the City’s residential gallons per capita day (R-GPCD) water usage by eight percent (8%) for each month as compared to water usage in the same month of 2013, effective June 1, 2015;
6. This ordinance is intended to implement the State Board’s Emergency Regulation and provide notice to the City’s water customers about the applicable prohibitions and restrictions that are in effect.
B. Mandatory Water Conservation Measures. To prevent the waste and unreasonable use of water and to promote water conservation, each of the following actions is prohibited, except where necessary to address an immediate health and safety need, to comply with a term or condition in a permit issued by a state or federal agency, or if pursuant to specific water conservation policy adopted by resolution of the City Council:
1. The application of potable water to outdoor landscapes in a manner that causes runoff such that water flows onto adjacent property, non-irrigated areas, private and public walkways, roadways, parking lots, or structures.
2. The application of potable water to outdoor landscapes and turf during and within 48 hours after measurable rainfall.
3. The application of potable water to outdoor ornamental landscapes and turf more than four days per calendar week except for commercial nurseries.
4. The application of potable water to outdoor landscapes and turf between the hours of 10 a.m. and 6 p.m.
5. The application of potable water to outdoor landscapes and turf by hose; except where the hose is fitted with a shut-off nozzle or device attached to it that causes it to cease dispensing water immediately when not in use or to meet the initial watering requirements of newly planted landscaping and newly seeded lawns.
6. The irrigation with potable water of ornamental turf on public street medians except where necessary to protect trees.
7. The irrigation with potable water of landscapes outside of newly constructed homes and building in a manner inconsistent with regulations or other requirements established by the California Building Standards Commission and the Department of Housing and Community Development.
8. The use of a hose that dispenses potable water to wash a motor vehicle, except where the hose is fitted with a shut-off nozzle or device attached to it that causes it to cease dispensing water immediately when not in use.
9. The application of potable water to hard surfaces including, but not limited to, driveways, sidewalks, patios, parking lots, streets, or similar surfaces except as necessary by the City for street sweeping and to otherwise protect the public health or safety.
10. The use of potable water in a fountain or other decorative water feature, except where the water is part of a recirculating system.
11. The serving of drinking water other than upon request in eating or drinking establishments, including but not limited to restaurants, hotels, cafes, cafeterias, bars, or other public places where food or drink are served and/or purchased.
12. The failure of hotel and motel operators to prominently display in each guest room using clear and easily understood language a notice of the option for guests to choose not have towels and linens laundered daily.
Section 2: Severability. If any section, subsection, sentence, clause or phrase of this chapter is for any reason held to be invalid or unconstitutional, the decision shall not affect the validity of the remaining portions of the Chapter. The City Council hereby declares that it would have passed this Chapter, and each section, subsection, sentence, clause and phrase thereof, irrespective of the fact that any one or more sections, subsections, sentences, clauses or phrases be declared invalid under law.
Section 3: This ordinance is exempt from the California Environmental Quality Act (CEQA) pursuant to Section 15269(c), specific action necessary to prevent or mitigate an emergency, and Section 15307 of the CEQA Guidelines, California Code of Regulations, Title14, Chapter 3, actions by regulatory agencies for the protection of natural resources.
Section 4: Due to the ongoing statewide drought, there exists a current and immediate threat to the public health, safety, and welfare requiring immediate implementation of the State Board’s Emergency Regulation for the immediate preservation of the public peace, health, and safety. Pursuant to Government Code Section 36937(b), this ordinance will take effect immediately upon adoption.
Section 5. This ordinance shall expire without additional action of the City Council on February 28, 2016.
DATE: June 17, 2015
ATTEST: APPROVED:
/s/ Bridget Dory /s/ Michael Winkler
City Clerk, City of Arcata Mayor, City of Arcata
CLERK’S CERTIFICATE
I hereby certify that the foregoing is a true and correct copy of Ordinance No. 1462, passed and adopted at a regular meeting of the City Council of the City of Arcata, County of Humboldt, State of California on the 17th day of June, 2015, by the following vote:
AYES: WINKLER, PITINO, ORNELAS, PEREIRA, WHEETLEY
NOES: NONE
ABSENT: NONE
ABSTENTIONS: NONE
/s/ Bridget Dory
City Clerk, City of Arcata
RESOLUTION NO. 256-65
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ARCATA ADOPTING THE 2025 URBAN WATER MANAGEMENT PLAN
WHEREAS, the California Legislature enacted Assembly Bill 797 (Water Code Section 10610, et seq., known as the Urban Water Management Planning Act) during the 1983-1984 Regular Session, and as amended subsequently, which mandates that every supplier providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acrefeet of water annually, prepare an Urban Water Management Plan (hereinafter “Plan”), the primary objective of which is to plan for the conservation and efficient use of water and prepare a Water Shortage Contingency Plan, the primary objective of which is to provide an action plan for drought or catastrophic water supply shortage; and
WHEREAS, the California Legislature enacted Senate Bill 7 (SBX7-7) in November 2009, which has amended and repealed sections of the Water Code, and mandated that the State of California achieve a 20-percent reduction in urban per capita water use by December 31, 2020, and requires each urban retail water supplier to develop urban water use targets and an interim urban water use target, in accordance with specified requirements; and WHEREAS, SBX7-7 requires each urban retail water supplier to report compliance with the 20-percent reduction target for 2020 in the 2020 Urban Water Management Plan; and WHEREAS, the City of Arcata is an urban supplier of water providing water to a population of 21,185; and
WHEREAS, the Plan shall be periodically reviewed at least once every five (5) years, and the City shall make any amendments or changes to its Plan which are indicated by the review, and
WHEREAS, the Plan was adopted on June 3, 2026, after public review and hearing, and filed with the California Department of Water Resources within thirty (30) days of adoption; and WHEREAS, the City has prepared and circulated for public review a draft 2025 Urban Water Management Plan, and properly noticed public hearing regarding said Plan was held by the City Council on June 3, 2026.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Arcata as follows:
1. The Urban Water Management Plan and accompanying Water Shortage Contingency Plan is hereby adopted and ordered filed with the City Clerk; the City Manager is hereby authorized and directed to file the 2025 Urban Water Management Plan with the California Department of Water Resources within 30 days after this date; and
2. The City Manager is hereby authorized and directed to implement the Water Conservation Programs set forth in the 2025 Urban Water Management Plan, which include water shortage contingency analysis and recommendations to the City Council regarding necessary procedures, rules and regulations to carry out effective and equitable water conservation and water recycling programs; and
3. In a water shortage, the Mayor is hereby authorized to declare a Water Shortage Emergency according to the Water Shortage Stages and Triggers indicated in the Plan and implement necessary elements of the Plan; and
4. The City Manager shall recommend to the City Council additional regulations to carry out effective and equitable allocation of water resources.
This resolution shall be effective upon its adoption.
DATED:
ATTEST: APPROVED:
________________________________ ___________________________________ City Clerk, City of Arcata Mayor, City of Arcata
CLERK’S CERTIFICATE
I hereby certify that the foregoing is a true and correct copy of Resolution No. 256-65 passed and adopted at a regular meeting of the City Council of the City of Arcata, County of Humboldt, State of California, held on the _____ day of ___________, 2026, by the following vote:
AYES:
NOES:
ABSENT:
ABSTENTIONS:
___________________________________
City Clerk, City of Arcata