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Regulatory Text

§ 968. Outdoor Residential Water Use Standard

(a) (1) Through June 30, 2035, the standard for efficient residential outdoor use (Soutdoor) shall be a landscape efficiency factor of 0.80.

(2) Beginning July 1, 2035, and through June 30, 2040, the standard for efficient residential outdoor use shall be a landscape efficiency factor of 0.63.

(3) Beginning July 1, 2040, the standard for efficient residential outdoor use shall be a landscape efficiency factor of 0.55.

(4) The standard for efficient residential outdoor use for residential special landscape areas shall be a landscape efficiency factor of 1.0.

(5) The standard for newly constructed residential landscapes (Snew) shall be a landscape efficiency factor of 0.55.

(b) (1) Each year, an urban retail water supplier shall calculate its budget for efficient residential outdoor water use (Routdoor), in gallons, by multiplying the applicable standard (Soutdoor) described in subdivision (a) by the square footage of the most current available residential landscape area (RLA) as described in subdivision (b)(2) or (b)(3), net reference evapotranspiration (Net ET0), and a unit conversion factor of 0.62. This formula is expressed mathematically as follows:

Routdoor = Soutdoor × RLA × Net ET0 × 0.62

(2) Until updated residential landscape area data are available pursuant to paragraph (3), residential landscape area shall be, for each supplier: (A) (i) The supplier’s unique square footage of Irrigable Irrigated area released by the Department on December 6, 2023. After the effective date of this section, a supplier may adjust this value by adding the residential parkway area provided by the Department that the supplier has confirmed is associated with a residential service connection; or (ii) For a supplier that has not received residential landscape area data from the Department by the effective date of this section, the supplier’s unique square footage of Irrigable Irrigated area shall be what the Department first provides after this section takes effect.

(B) If the supplier’s actual urban water use for the reporting year, calculated in accordance with Water Code section 10609.22, is greater than the urban water use objective calculated pursuant to section 966 without inclusion of Irrigable Not Irrigated area, a supplier may include: (i) Twenty percent of the supplier’s unique square footage of Irrigable Not Irrigated area released by the Department on December 6, 2023; or (ii) For a supplier that has not received residential landscape area data from the Department by the effective date of this section, twenty percent of the supplier’s unique square footage of Irrigable Not Irrigated area first provided by the Department after this section takes effect.

(3) Residential landscape area shall be, for each supplier, the most current updated Irrigable Irrigated area: (A) Provided by the Department; (B) Updated by a supplier pursuant to paragraph (4); or (C) Provided by an entity other than the Department or a supplier according to the following criteria: (i) The residential landscape area is generated as part of a transparent statewide analysis covering the service areas of all urban retail water suppliers; (ii) Developed with methodologies and procedures that have been demonstrated to the Department to be equivalent, or superior, in quality and accuracy, to those used by the Department to develop residential landscape area; and (iii) Results in landscape area data that have been demonstrated to the Department to be equivalent, or superior, in quality and accuracy to the data released by the Department on December 6, 2023.

(4) A supplier may, for each reporting year, use an alternative data source for reference evapotranspiration, effective precipitation, or its Irrigable Irrigated area, if it demonstrates to the Department, in coordination with the Board, that the data are equivalent, or superior, in quality and accuracy to the data provided by the Department. Alternative data pursuant to this paragraph shall be reported pursuant to section 975.

(5) Notwithstanding subdivisions (b)(2) and (b)(3), a supplier may subtract landscape area that has been categorized as residential but that the supplier has identified as Commercial, Industrial, or Institutional (CII). If the area consists of CII landscapes with dedicated irrigation meters, it shall be included in a supplier’s objective pursuant to section 969.

Data Required

Required Data for Reporting: Suppliers must provide the following data to calculate and report their residential outdoor water use budget:

  • Residential landscape area (RLA): This can either be:
    • The square footage of irrigable irrigated areas provided by the Department on December 6, 2023, or;
    • An updated value if the supplier uses alternative data.
  • Net ET0 data: The net reference evapotranspiration provided by the Department or alternative data that meets the same quality standards.
  • Annual reference evapotranspiration and effective precipitation data, either from the Department or alternative approved data sources.
  • Special landscape areas: If a supplier has areas classified as residential special landscape areas (RSLA), such as recycled water irrigation areas, these need to be reported and integrated into the calculation of the budget.

Submission of Variances: Suppliers can request and report variances for certain categories, such as:

  • Populations of horses and other livestock.
  • Dust control on horse corrals or animal exercise arenas.
  • Irrigating agricultural landscapes within residential areas.
  • Emergency events.
  • Landscapes irrigated with recycled water containing high levels of TDS.
  • Supplementing ponds and lakes to sustain wildlife.
  • Irrigating existing residential trees.

Special Requirements:

  • For newly constructed residential landscapes, suppliers must demonstrate their existence using either annual reporting data, on-ground measurements, or remote sensing methods.
  • Any changes to the landscape area or variances must be reported and substantiated by relevant documentation and accurate measurements.

Related Variances

Adopt new section 968:

§ 968. Outdoor Residential Water Use Standard

(f)(1) An urban retail water supplier may annually, in calculating its urban water use objective, include budgets for variances for residential outdoor water use as follows:

(A) The supplier submits supporting information meeting the criteria described in subdivision (j).

(B) The associated water use must, for any individual variance identified in paragraph (2)(A) through (C), represent 5 percent or more of the budget associated with the standard described in section 966(c)(2).

(C) The associated water use for the variances identified in paragraph (2)(D) and in section 969(e)(2)(A), or the associated water use for the variance identified in paragraph (2)(E) and in section 969(e)(2)(B), must represent 5 percent or more of the sum of the budgets associated with the standards described in section 966(c)(2) and (3).

(2) Variances may be requested for water use associated with any of the following:

(A) Populations of horses and other livestock
(B) Controlling dust on horse corrals or other animal exercise arenas
(C) Irrigating agricultural landscapes that are within residential areas but have not been classified as irrigable irrigated by the Department
(D) Responding to emergency events, not including drought
(E) Landscapes irrigated with recycled water containing high levels of TDS
(F) Supplementing ponds and lakes to sustain wildlife as required by existing regulations or local ordinances
(G) Irrigating existing residential trees

Each variance is its own subcategory

Variance for Populations of Horses and Other Livestock

(g)(1) A variance for water use associated with horses and other livestock (Vlivestock)

  • Equation:
    The variance (Vlivestock) is calculated as the sum of the water allocations for each type of livestock (animal type-class). The water allocation for each type-class is determined by multiplying:

    • The daily water use of the animal type-class (VT)
    • The number of animals in that type-class (NT)
    • The average number of days per year where water is provided to the animals in that type-class (DT)

This is expressed mathematically as:

Vlivestock=∑(VT×NT×DT)V_{livestock} = \sum (VT \times NT \times DT)Vlivestock​=∑(VT×NT×DT)

Data Needed for Calculation:

  1. VT – Daily water use for each animal type-class:
    • Sheep, llama, donkey, swine, and other medium-sized livestock (200-500 pounds): 8 gallons of water per day per animal, or the amount specified in Section 697.
    • Cattle, bulls, and other large livestock (greater than 500 pounds): 11 gallons of water per day per animal.
    • Horses and mules: 13 gallons of water per day per animal.
    • Milking cows: 16 gallons of water per day per animal.
  2. NT – Number of animals in each type-class.
  3. DT – Average number of days per year that water is provided to the animals.

Variance for Controlling Dust on Horse Corrals or Other Animal Exercise Arenas

(g)(2) A variance for water use associated with dust control on horse corrals or other animal exercise arenas (Vcorral)

  • Equation:
    The variance (Vcorral) is calculated by multiplying:

    • The square footage of the corrals or other animal exercise arenas (Acorral)
    • The number of days per year the corrals or exercise arenas may be watered (NW)
    • 0.021 feet of water per watering day
    • A conversion factor of 7.48 gallons per cubic foot to convert the volume of water used into gallons

This is expressed mathematically as:

Vcorral=Acorral×NW×0.021×7.48V_{corral} = A_{corral} \times NW \times 0.021 \times 7.48Vcorral​=Acorral​×NW×0.021×7.48

Data Needed for Calculation:

  1. Acorral – The square footage of corrals or other animal exercise arenas in the supplier’s service area.
    • The value can be obtained either from the dataset released by the Department or from an alternative data source that meets equivalent quality and accuracy standards.
  2. NW – The number of days per year that water may be applied for dust control:
    • Climate Zones 1 through 5 and Zone 7: No more than 2 days per week.
    • Climate Zones 6, 8 through 10, 12, and 16: No more than 3 days per week.
    • Climate Zones 11 and 13 through 15: No more than 4 days per week.
  3. Water depth applied per day: The calculation uses a standardized water depth of 0.021 feet of water per watering day.
  4. Conversion factor: 7.48 gallons per cubic foot to convert the water volume into gallons.

Variance for Irrigating Agricultural Landscapes Within Residential Areas (VAg)

(g)(3) A variance for water use associated with irrigating residential agricultural landscapes (VAg)

  • Equation:
    The variance (VAg) is calculated by multiplying:

    • The landscape efficiency factor for agricultural landscapes (LEFAg)
    • The square footage of residential agricultural landscapes (LAAg)
    • The net reference evapotranspiration (Net ET0 Ag) for the growing seasons associated with the crops grown on those landscapes
    • A unit conversion factor of 0.62 to convert the result into gallons

This is expressed mathematically as:

VAg=LEFAg×LAAg×NetET0Ag×0.62V_{Ag} = LEFAg \times LAAg \times Net ET0 Ag \times 0.62VAg​=LEFAg×LAAg×NetET0Ag×0.62

Data Needed for Calculation:

  1. LEFAg – The landscape efficiency factor for agricultural landscapes:
    • This factor adjusts the water budget to account for how efficiently the landscape is irrigated.
    • It is calculated using data provided by the Department, based on the regional crop coefficient (which represents the water needs of the crops) and the regional irrigation efficiency (how effectively irrigation delivers water to the crops).
  2. LAAg – The total square footage of residential agricultural landscapes:
    • This represents the size of the area used for agriculture within a residential property, which has not been classified as irrigable irrigated by the Department.
  3. Net ET0 Ag – The net reference evapotranspiration for the growing seasons:
    • This refers to the amount of water that crops need due to evaporation and transpiration in the specific region where the residential agricultural landscape is located, adjusted for effective precipitation.
  4. 0.62 – A unit conversion factor to convert the water use into gallons.

Alternate Method for Crop-Specific Calculation:

For suppliers using crop-specific landscape area data, the variance can be calculated separately for each crop using the following modified equation:

VAg=∑(LAcrop×EFcrop×NetET0crop×0.62)V_{Ag} = \sum \left( LAcrop \times EFcrop \times Net ET0 crop \times 0.62 \right)VAg​=∑(LAcrop×EFcrop×NetET0crop×0.62)

Where:

  • LAcrop is the landscape area for each specific crop within the residential agricultural landscape.
  • EFcrop is the efficiency factor specific to the irrigation method used for that crop.
  • Net ET0 crop is the net evapotranspiration specific to each crop’s growing season.

Variance for Responding to Emergency Events (Vemergency)

(g)(4) A variance for water use associated with responding to emergency events (excluding drought) can be requested by urban retail water suppliers if the water use is necessary to address specific emergency conditions, such as fires, floods, or other natural or human-made disasters.

  • Equation:
    The variance (Vemergency) is calculated as the total volume of water used in response to the emergency event. There is no complex formula needed beyond simply determining the total amount of water required during the emergency event.

This is expressed mathematically as:

Vemergency=Total Volume of Water Used in Response to the Emergency EventV_{emergency} = \text{Total Volume of Water Used in Response to the Emergency Event}Vemergency​=Total Volume of Water Used in Response to the Emergency Event

Data Needed for Calculation:

  1. Total volume of water used – The actual amount of water used to respond to the emergency. This can be derived from meter readings, pumping data, or estimates based on typical water usage rates for similar emergency responses.
  2. Supporting Documentation – The following documentation must be provided to substantiate the variance request:
    • A copy of the emergency declaration under Government Code section 8558(b) or 8558(c) (excluding drought declarations).
    • Official evacuation orders, incident reports, or other documentation of the emergency event.
    • A map or description of the impacted parcels that required the additional water.
    • Records showing the total volume of water used for emergency response efforts during the event.

Summary of the Process:

  1. Identify the emergency event (excluding drought) that required the additional water usage.
  2. Collect and calculate the total volume of water used during the emergency event.
  3. Gather supporting documentation such as the emergency declaration, evacuation orders, incident reports, and water usage records.
  4. Submit the variance request with all necessary data and documents.

Variance for Landscapes Irrigated with Recycled Water Containing High Levels of TDS (VHTDS)

(g)(5) A variance for water use associated with landscapes irrigated with recycled water containing high levels of TDS (Total Dissolved Solids) is allowed when the TDS levels in the recycled water increase the amount of water required for proper irrigation.

  • Equation:
    The variance (VHTDS) is calculated by multiplying:

    • The landscape efficiency factor (LEFA) specific to recycled water with high levels of TDS
    • The square footage of the landscape area irrigated with high TDS recycled water (LAHTDS)
    • The net reference evapotranspiration (Net ET0)
    • A unit conversion factor of 0.62 to convert the results into gallons

This is expressed mathematically as:

VHTDS=LEFA×LAHTDS×NetET0×0.62V_{HTDS} = LEFA \times LAHTDS \times Net ET0 \times 0.62VHTDS​=LEFA×LAHTDS×NetET0×0.62

Data Needed for Calculation:

  1. LEFA (Landscape Efficiency Factor for High TDS):
    • The LEFA is calculated based on the TDS concentration in the recycled water:
      • If the TDS concentration is between 900 and 1,600 mg/L, the LEFA is calculated as: LEFA=0.000371×(TDS concentration−900)LEFA = 0.000371 \times (\text{TDS concentration} – 900)LEFA=0.000371×(TDS concentration−900)
      • If the TDS concentration is above 1,600 mg/L, the LEFA is set to 0.26.
  2. LAHTDS (Square Footage of the Landscape Irrigated with High TDS Water):
    • The total square footage of landscape areas that are being irrigated with recycled water containing high levels of TDS.
  3. Net ET0 (Net Reference Evapotranspiration):
    • This refers to the amount of water needed due to the evaporation and transpiration of the plants in the irrigated area, adjusted for effective precipitation.
  4. Unit Conversion Factor (0.62):
    • This factor is used to convert the calculated water needs into gallons.

Detailed Steps in the Calculation Process:

  1. Determine the TDS concentration in the recycled water:
    • If the TDS concentration is between 900 and 1,600 mg/L, use the formula to calculate the LEFA.
    • If the TDS concentration exceeds 1,600 mg/L, use the LEFA value of 0.26.
  2. Measure the landscape area (LAHTDS) irrigated with the high TDS recycled water.
  3. Use Net ET0 data for the region to determine the water needs for the landscape.
  4. Multiply the LEFA, LAHTDS, Net ET0, and the 0.62 conversion factor to calculate the total variance (VHTDS) in gallons.

Example Calculation:

If you are irrigating a 10,000-square-foot landscape area with recycled water that has a TDS concentration of 1,200 mg/L, the steps would be as follows:

  1. Calculate the LEFA:

LEFA=0.000371×(1,200−900)=0.000371×300=0.1113LEFA = 0.000371 \times (1,200 – 900) = 0.000371 \times 300 = 0.1113LEFA=0.000371×(1,200−900)=0.000371×300=0.1113

  1. Assume Net ET0 is 50 inches/year.
  2. Calculate the variance:

VHTDS=0.1113×10,000×50×0.62=34,986gallonsV_{HTDS} = 0.1113 \times 10,000 \times 50 \times 0.62 = 34,986 gallonsVHTDS​=0.1113×10,000×50×0.62=34,986gallons

This result represents the additional water required to irrigate the landscape due to the high TDS levels in the recycled water.

Additional Considerations:

  • Suppliers must ensure the following conditions are met for the variance:
    • The facility producing the recycled water completes annual volumetric reporting.
    • The application of recycled water complies with waste discharge requirements and adheres to the Board’s Anti-Degradation Policy.
    • If detailed plant-based leaching requirements are used, the supplier may calculate a different variance based on plant factors and leaching requirements.

Variance for Supplementing Ponds and Lakes to Sustain Wildlife (Vponds)

(g)(6) A variance for water use associated with supplementing ponds and lakes to sustain wildlife can be requested when water is added to maintain pond or lake levels to support wildlife as required by existing regulations or local ordinances.

  • Equation:
    The variance (Vponds) is calculated by multiplying:

    • The area of the water body (Apond) in square feet
    • The evaporation rate (ETpond) specific to the region where the pond or lake is located
    • The number of days (N) that the water is supplemented over a given period
    • A conversion factor of 7.48 gallons per cubic foot to convert the water volume into gallons

This is expressed mathematically as:

Vponds=Apond×ETpond×N×7.48V_{ponds} = A_{pond} \times ET_{pond} \times N \times 7.48Vponds​=Apond​×ETpond​×N×7.48

Data Needed for Calculation:

  1. Apond (Area of the Water Body):
    • The surface area of the pond or lake in square feet. This is typically measured or estimated based on the size of the water body being supplemented.
  2. ETpond (Evaporation Rate):
    • The evaporation rate, typically measured in feet or inches per day, for the region where the pond or lake is located. This represents how much water is lost due to evaporation that needs to be replenished.
  3. N (Number of Days Water is Supplemented):
    • The total number of days during which water is added to the pond or lake to sustain wildlife. This is generally based on the period in which the pond is actively being supplemented, often related to seasonal needs.
  4. 7.48:
    • A conversion factor used to convert the volume of water lost (calculated in cubic feet) into gallons.

Detailed Steps in the Calculation Process:

  1. Determine the area (Apond) of the pond or lake in square feet.
  2. Use the regional evaporation rate (ETpond), which can vary based on the climate and weather conditions of the area where the water body is located.
  3. Multiply the evaporation rate by the number of days (N) that water is supplemented to replace evaporation losses.
  4. Apply the 7.48 conversion factor to convert cubic feet to gallons, resulting in the total water volume (in gallons) required to sustain the wildlife in the pond or lake.

Example Calculation:

Suppose you are supplementing a pond that has a surface area of 5,000 square feet and is located in a region where the evaporation rate is 0.02 feet per day. If the supplementation occurs over a 60-day period, the variance calculation would be as follows:

  1. Area of the pond (Apond) = 5,000 square feet
  2. Evaporation rate (ETpond) = 0.02 feet per day
  3. Number of days (N) = 60 days

The calculation would be:

Vponds=5,000×0.02×60×7.48=44,880gallonsV_{ponds} = 5,000 \times 0.02 \times 60 \times 7.48 = 44,880 gallonsVponds​=5,000×0.02×60×7.48=44,880gallons

This result represents the additional water required to supplement the pond to sustain wildlife over the 60-day period.

Supporting Documentation:

To apply for this variance, suppliers must provide supporting documentation that includes:

  • Regulations or ordinances requiring the water supplementation for wildlife.
  • Maps or descriptions of the ponds or lakes and their surface areas.
  • Records of the evaporation rates used in the calculation.
  • Logs or reports showing the number of days water was supplemented to the pond or lake.

This variance allows urban water suppliers to account for the water used to maintain ponds or lakes that are crucial for wildlife sustainability, as mandated by regulations or ordinances.

Variance for Irrigating Existing Residential Trees (Vtrees)

(g)(7) A variance for water use associated with irrigating existing residential trees (Vtrees) can be requested when water is needed to maintain the health of established trees in residential areas. This variance is provided to ensure that mature trees, which contribute significantly to environmental benefits, receive adequate water despite outdoor water use restrictions.

  • Equation:
    The variance (Vtrees) is calculated by multiplying:

    • The number of trees (Ntrees) that need irrigation
    • The average canopy area (Acanopy) of the trees in square feet
    • The net reference evapotranspiration (Net ET0 tree) specific to the region where the trees are located
    • A unit conversion factor of 0.62 to convert the result into gallons

This is expressed mathematically as:

Vtrees=Ntrees×Acanopy×NetET0×0.62V_{trees} = N_{trees} \times A_{canopy} \times Net ET0 \times 0.62Vtrees​=Ntrees​×Acanopy​×NetET0×0.62

Data Needed for Calculation:

  1. Ntrees (Number of Trees):
    • The total number of existing residential trees that require irrigation.
  2. Acanopy (Average Canopy Area of Trees):
    • The average size of the tree canopy, measured in square feet. The canopy area can vary based on the size and type of the trees, but it reflects the area under the tree that requires water.
  3. Net ET0 tree (Net Reference Evapotranspiration for Trees):
    • This is the amount of water needed to replace water lost through evapotranspiration in the region where the trees are located. It is typically adjusted based on local climate and weather conditions.
  4. 0.62 – A unit conversion factor to convert the calculated water volume into gallons.

Detailed Steps in the Calculation Process:

  1. Determine the number of trees (Ntrees) that need irrigation.
  2. Measure the canopy area (Acanopy) of the trees, which represents the area that needs to be irrigated under the tree’s drip line.
  3. Use Net ET0 tree data for the region to determine the water needs based on the local climate and weather.
  4. Multiply the Ntrees, Acanopy, Net ET0 tree, and the 0.62 conversion factor to calculate the total water variance (Vtrees) in gallons required for irrigating the trees.

Example Calculation:

Suppose there are 20 trees that need irrigation, and each tree has an average canopy area of 100 square feet. The Net ET0 in the region is 40 inches/year. The variance calculation would be as follows:

  1. Number of trees (Ntrees) = 20
  2. Average canopy area (Acanopy) = 100 square feet
  3. Net ET0 tree = 40 inches/year

The calculation would be:

Vtrees=20×100×40×0.62=49,600gallonsV_{trees} = 20 \times 100 \times 40 \times 0.62 = 49,600 gallonsVtrees​=20×100×40×0.62=49,600gallons

This result represents the total additional water needed to maintain the health of the trees through irrigation.

Supporting Documentation:

To apply for this variance, urban water suppliers must provide:

  • Maps or descriptions of the areas where the trees are located.
  • Records of the tree canopy size and type to support the variance request.
  • Net ET0 data specific to the region.
  • Logs or reports on water usage** for irrigation of the trees.

This variance ensures that mature trees, which provide essential environmental benefits such as shade, carbon sequestration, and habitat, receive adequate water even under stringent water use regulations.

Reporting

(C) Residential landscape area data provided by the Department, or alternative residential landscape area data meeting the criteria specified in section 968(b)(3).

(D) Any residential special landscape area meeting the criteria specified in section 968 (c). For residential special landscape areas irrigated with recycled water, the supplier shall, unless otherwise specified, provide information to trace the recycled water network at least once every five years:

(i) The Public Water System Identification (PWSID) number associated with each system delivering recycled water to residential landscapes

(ii) Annual metered non-potable residential landscape irrigation demand, as reported to the Board pursuant to Health and Safety Code section 116530. This must be updated annually.

(iii) The GeoTracker Global Identification Number used for Volumetric Annual Reporting by each facility producing the recycled water that the supplier reported delivering to residential landscapes

(iv) The PWSID number associated with each system producing the recycled water from each facility identified in (iii)

(v) The square footage of residential land irrigated with recycled water. If annually reported to a Regional Water Quality Control Board, the value reported pursuant to this section shall be the same value as annually reported to the Regional Water Quality Control Board.

(vi) The Waste Discharge Identification Number (WDID) associated with the land application of recycled water.

(E) Any residential landscape area associated with new construction and meeting the criteria specified section 968 (e)(2).

(F) If the supplier has requested and received approval to include in its objective a budget associated with the variance for horses and other livestock water use pursuant to section 968(f)(2):

(i) The volume of water associated with the variance (Vlivestock) calculated pursuant to section 968(g)(1)

(ii) The number of animals according to each animal type-class

(iii) The average number of days per year that water is provided to each animal type-class.

(G) If the supplier has requested and received approval to include in its objective a budget associated with the variance for water associated with dust control on horse corrals or other animal exercise arenas pursuant to section 968(f)(2):

(i) The volume of water associated with the variance (Vcorral) calculated pursuant to section 968(g)(2)

(ii) The square footage of corrals or other animal exercise arenas provided by the Department, or alternative data as specified in section 968(g)(2)(A).

(H) If the supplier has requested and received approval to include in its objective a budget associated with the variance to irrigate residential agricultural landscapes pursuant to section 968(f)(2), the following information:

(i) The volume of water associated with the variance (VAg) calculated pursuant to section 968(g)(3). This must be calculated and updated on an annual basis.

(ii) Reference evapotranspiration and effective precipitation data for the aggregated growing seasons associated with the crops grown on residential agricultural landscapes This must be calculated and updated on an annual basis

(iii) The average regional crop coefficient

(iv) The average regional irrigation efficiency

(v) The square footage of residential agricultural landscapes.

(I) If the supplier has requested and received approval to include in its objective a budget associated with the variance to irrigate residential agricultural landscapes pursuant to section 968(f)(2) and if the variance is calculated using crop-specific landscape area, the following information:

(i) The volume of water associated with the variance (VAg) calculated pursuant to section 968(g)(3)(A). This must be calculated and updated on an annual basis

(ii) The reference evapotranspiration and effective precipitation data associated with each crop’s growing season. This must be calculated and updated on an annual basis

(iii) The unique efficiency factor for each crop, calculated according to section 968(g)(3)(C)

(iv) The landscape area associated with each crop, as estimated by the supplier.

(J) If the supplier has requested and received approval to include in its objective a budget associated with the variance for water used to respond to state or local emergency events pursuant to sections 968(f)(2), the following information, which must be calculated and updated on an annual basis:

(i) The volume of water associated with the variance

(ii) The required documentation described in section 968(g)(4).

(K) If the supplier has requested and received approval to include in its objective a budget associated with the variance to irrigate landscapes with recycled water containing high levels of TDS pursuant to section 968(f)(2) and relied on the calculation method described in section 968(g)(5)(A):

(i) The volume of water associated with the variance (VHTDS) calculated pursuant to section 968(g)(5)(A). This must be calculated and updated on an annual basis.

(ii) The square footage of residential land irrigated with recycled water containing high levels of TDS. If reported to a Regional Water Quality Control Board, the value reported pursuant to this section shall be the same value as reported to the Regional Water Quality Control Board.

(iii) The concentration of TDS, in mg/L

(iv) The Public Water System Identification (PWSID) number associated with each system delivering to residential landscapes recycled water containing high levels of TDS

(v) Annual metered non-potable residential landscape irrigation demand, as reported to the Board pursuant to Health and Safety Code section 116530. This must be updated annually.

(vi) The GeoTracker Global Identification Number used for Volumetric Annual Reporting by each facility producing the recycled water containing high levels of TDS

(vii) The PWSID associated with each system producing the recycled water from each facility identified in (vi)

(viii) The waste discharge identification number (WDID) for the Waste Discharge Requirements associated with the land application of treated recycled water with high levels of TDS

(ix) The permitted concentration of TDS, in mg/L

(x) The permitted volume of applied recycled water, in gallons

(xi) An electronic copy of the applicable salt and nutrient management plan or plans, if any.

(L) If the supplier has requested and received approval to include in its objective a budget associated with the variance to irrigate landscapes with recycled water containing high levels of TDS pursuant to section 968(f)(2) and relied on the calculation method described in section 968(g)(5)(B):

(i) All parameters identified in paragraph (K), except (iii)

(ii) The plant factor

(iii) The leaching requirement

(iv) The salinity of the recycled water

(v) The plant threshold salinity.

(M) If the supplier has requested and received approval to include in its objective the budget associated with the variance for water used to sustain wildlife in ponds and lakes pursuant to section 968 (f)(2):

(i) The volume of water associated with the variance (Vwildlife), calculated pursuant to section 968 (g)(6). This must be calculated and updated annually

(ii) The area of ponds and lakes, in square feet

(iii) Annual precipitation data provided by the Department or annual precipitation data meeting the criteria in section 968 (g)(6)(A).

(N) If the supplier has requested and received approval to include in its objective the budget associated with the variance for water used to irrigate existing residential trees pursuant to section 968 (f)(2):

(i) The volume of water associated with the variance (VR-trees), calculated pursuant to section 968 (g)(7). This must be calculated and updated annually

(ii) The area of existing residential trees, in square feet.

(O) If the supplier has requested and received approval to include in its objective a budget associated with the temporary provision for new, climate-ready trees pursuant to section 968 (h)(2):

(i) The volume of water associated with the temporary provision (Prtrees), calculated pursuant to section 968 (i)(1). This must be calculated and updated annually

(ii) The number of newly planted trees.

(P) If the supplier has requested and received approval to include in its objective a temporary provision associated with establishing qualifying landscapes pursuant to section 968 (h)(2):

(i) The volume of water associated with the temporary provision (Prland), calculated pursuant to section 968 (i)(2). This must be calculated and updated annually

(ii) The square footage of qualifying landscapes receiving temporary irrigation.