Water Resources Planning Department. Projection Analysis Work Sheets for Willows District. Printed on 4/12/2016 at 4:04 PM

Transcription

1 Water Resources Planning Department Projection Analysis Work Sheets for Willows District 215 Printed on 4/12/216 at 4:4 PM

2 Table of Contents for Worksheets Worksheet Title 1 Annual Services 2 Service Growth Percentage 3 District Sales (AF) Demand per Service (Gallons per Day) Percentage Change in Annual Demand Percentage of Total Sales Percentage of Total Demand Actual & Projected Annual Average Services Actual & Projected Demand in Acre-Feet Projected Annual Supply by Source Historical and Projected Average Day, Maximum Day, and Peak Demands Population Estimate Temperature & Rainfall History Groundwater Facilities (if available) 15 Per Capita Water Demand Calculation Indoor/Outdoor Water Usage SB-7 Compliance Demand Worksheet Printed on 4/12/216 at 4:4 PM

3 Distribution of Services Chart Distribution of Services (215) Single Family (FLT) % Multi-Residential 2% Commercial 11% Single Family (MTR) 85% Industrial % Other % Government 2% WIL PAWS 215 Distribution of Services Chart 4/12/216

4 Historical Services Graph Historical Services 2,5 2, 1,5 Services 1, Year Single Family (SFR) Single Family (FLT) Multi Family (MFR) Commercial (COM) (IND) Government (GOV) Other (OTH) WIL PAWS 215 Historical Services Graph 4/12/216

5 Services California Water Service Company - Willows Districts Worksheet 1 Water Supply and Demand Analysis and Projections Average Annual Services Single Family Single Family Single Family Multi Family Commercial Industrial Government Other Annual Year (SFR) (FLT) (Total) (MFR) (COM) (IND) (GOV) (OTH) Total Change ,262 1, , ,26 1, , ,26 1, , ,22 1, , ,187 1, , ,176 1, , ,155 1, , ,135 1, , ,11 1, , ,81 1, , ,65 1, , ,55 1, , ,32 1, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,16 2, , Yr Avg. 1, , , Yr Avg. 1, , , Yr Avg. 1, , , Yr Avg. 1, , ,35 8 Note: Reclassification occurred between categories from 27 to 29 WIL PAWS 215 Services 4/12/216

6 Services California Water Service Company - Willows Districts Worksheet 2 Water Supply and Demand Analysis and Projections Service Growth Percentage Single Family Single Family Single Family Multi Family Commercial Industrial Government Other Year (SFR) (FLT) (Total) (MFR) (COM) (IND) (GOV) (OTH) Total % -.15%.63% 85.33% -.31% 1.96% -5.%.78% % -.3%.2% 3.6% -.4% 1.68%.%.16% % -3.15%.51% 14.58% -.25% 4.2% -5.%.55% % -2.77%.83% 36.36% 1.91% 7.73% 1.% 1.34% % -.87%.58% 5.78% 1.24% -.63% 5.%.69% % -1.77% -.59% 9.66% 1.5% -.64% -1.% -.22% % -1.75%.44% 1.15%.32%.%.43% % -3.5%.47%.% 1.12%.%.55% % -1.78%.56%.% 2.1%.%.74% % -1.5%.44%.% 1.%.85%.52% % -.93% 1.5%.% -6.12% 12.29%.25% % -2.17% 2.77% -.76% -.21% 3.2% 2.35% % -3.26%.81% 6.87% -1.2%.55%.64% % -2.87%.56% -1.43% -.88%.55%.36% % -1.89%.98%.% -2.9% 2.17%.62% % -2.72%.76%.%.34%.%.69% % -2.29%.15% -3.62%.16%.%.11% % -1.57%.71% -.75%.62%.%.67% % -1.24%.49% -1.14%.68%.%.48% 2.71% -1.25% -.19% 1.15% -.28% -2.84% -.24% % -.52%.42% -.38% 2.1% -.91%.58% % -.39%.66%.38% -.3% 1.47%.59% % -.92%.47% -.38% 1.45%.%.57% % -1.1%.28%.38% -.45% -.91%.17% 25.46% -.11%.21%.%.96% -.73%.31% % -.95%.84%.%.21% 4.6% 87.5%.84% % -1.14% 1.29%.%.47%.71% -6.% 1.13% % -7.77% -.68% 29.17%.27% 6.34% 35.% -.7% % % -.94% 19.6% -3.65% 4.47% 81.48% -.83% % -12.5%.73%.25% -.95% -1.43% 18.37%.51% % %.62%.25% 1.8% -3.86% 32.76%.63% % %.57%.% -1.25% -1.67% -22.8%.24% % -6.4% -.13%.% -1.67%.% % -.34% % -52.2%.97%.% -2.4% -.34% 22.45%.62% % -1.% -.3% 2.21% 2.5% -1.71% 16.67%.28% 5 Yr. Avg. 7.8% %.4%.49% -.28% -1.52% 6.29%.29% 1 Yr. Avg. 6.2% %.32%.34% -.15%.66% 5.88%.3% 15 Yr. Avg. 4.54% -21.3%.35%.21%.18%.37% 5.88%.35% 2 Yr. Avg. 4.2% %.36% -.9%.21%.13% 5.88%.35% Note: Values in red excluded due to reclassification. WIL PAWS 215 Services 4/12/216

7 Services PAGE LEFT BLANK INTENTIONALLY WIL PAWS 215 Services 4/12/216

8 Historical Sales Graph Historical Sales Single Family (mtr) Single Family (flat) Multi Family Commercial Industrial Government Other Unaccounted for Water 2,5 2, Sales in Acre-Feet 1,5 1, Year WIL PAWS 215 Historical Sales Graph 4/12/216

9 Sales California Water Service Company - Willows Districts Worksheet 3 Water Supply and Demand Analysis and Projections Sales (AF) Single Family Unaccounted Total Total Multi Family Commercial Industrial Government Other for Water Total Sales Demand Demand Year (SFR) (FLT) (Total) (MFR) (COM) (IND) (GOV) (OTH) (UAFW) (AF) (AF) (MGal) ,25 1, ,542 1, , ,554 1, ,321 1, , ,414 1, ,44 1, ,695 1, ,4 1, ,663 1, , ,596 1, , ,618 1, , ,641 1, , ,537 1, , ,669 1, , ,646 1, , ,721 1, , ,617 1, , ,826 1, , ,681 1, , ,738 1, , ,867 2, , ,587 1, , ,771 1, , ,779 1, , ,799 1, , ,897 2, , ,74 1, , ,879 2, , ,8 1, , ,782 1, , ,885 2, , ,77 1, , ,646 1, ,373 1, ,291 1, ,428 1, ,388 1, ,223 1, ,44 34 WIL PAWS 215 Sales 4/12/216

10 DPS TOT Combined Demand per Service Demand per Service (Gallons/day) Combined Demand AVG AVG-SD AVG+SD WIL PAWS 215 DPS TOT 4/12/216

11 Demand Per Service California Water Service Company - Willows Districts Worksheet 4 Water Supply and Demand Analysis and Projections Demand per Service (Gallons per Day) Combined Year SFR (MTR) SFR (FLT) SFR (TOT) MFR COM IND GOV OTH UAFW Demand/Serv , ,29 4, , ,481 3, , ,294 4, , , , ,145 8, , ,34 3, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,421 1,17 2, ,953 1,27 2, , , , ,554 3, , , , ,22 1, , ,33 1, , , , , , , , ,963 1, , , , , , , AVG (24-213) , ,284 1, SD , Note: Average based on due to 214 and 215 are drought years. WIL PAWS 215 Demand Per Service 4/12/216

12 Demand Per Service 7 Single Family Residential Demand per Service Demand per Service (Gallons/day) SFR (MTR) AVG AVG-SD AVG+SD , Multi Family Residential Demand per Service Demand per Service (Gallons/day) 6, 5, 4, 3, 2, 1, MFR AVG AVG-SD AVG+SD WIL PAWS 215 Demand Per Service 4/12/216

13 Demand Per Service 1,2 Commercial Demand per Service Demand per Service (Gallons/day) 1, COM AVG AVG-SD AVG+SD Industrial Demand per Service Demand per Service (Gallons/day) IND AVG AVG-SD AVG+SD WIL PAWS 215 Demand Per Service 4/12/216

14 Demand Per Service 3,5 Government Demand per Service Demand per Service (Gallons/day) 3, 2,5 2, 1,5 1, 5 GOV AVG AVG-SD AVG+SD , Other Demand per Service Demand per Service (Gallons/day) 8, 7, 6, 5, 4, 3, 2, 1, OTH AVG AVG-SD AVG+SD WIL PAWS 215 Demand Per Service 4/12/216

15 Demand Per Service 7 Un-accounted for Water Demand per Service Demand per Service (Gallons/day) UAFW AVG AVG-SD AVG+SD WIL PAWS 215 Demand Per Service 4/12/216

16 Percent Change California Water Service Company - Willows Districts Worksheet 5 Water Supply and Demand Analysis and Projections Percentage Change in Annual Demand Year Residential Multi Res Commercial Industrial Government Other Unaccounted Total % 69.58% 6.75% 1.45% %.76%.76% % -3.16% -7.86% -6.% 21.48% % % % 11.67% 1.65% % -9.24% 6.99% 6.99% % 2.37% 17.51% 28.48% 262.5% 19.86% 19.86% % -1.16% -2.31% 6.76% % -1.84% -1.84% % 57.26% -2.16% 3.2% -1.% -4.4% -4.4% % 18.59% 4.78% 1.4% 1.4% 1.4% % 7.58%.2% -2.34% 1.37% 1.37% % 4.43% -5.7% -13.3% -6.29% -6.29% % 1.84% 4.76% 24.58% 8.56% 8.56% % -1.28% -2.43% -7.17% -1.36% -1.36% % 4.12% -1.8% -5.39% 4.51% 4.51% % -6.93% 1.16% -.33% -6.% -6.% % 17.28% 2.67% 26.96% 12.93% 12.93% % -1.1% 1.48% -9.99% -7.98% -7.98% % 7.51% -1.55% -5.66% 3.4% 3.4% % 7.13% 7.41% 1.93% 7.43% 7.43% % -9.97% -9.88% -21.6% % % % % 2.26% 5.52% 11.62% 11.62% % -1.15% 5.3% 16.79%.44%.44% % % 7.43% 1.64% 1.12% 1.12% % -1.% 3.12% 4.73% 5.46% 5.46% % 15.1% 2.52% 1.1% -8.28% -8.28% % 5.% -3.55% 6.3% 8.% 8.% % -2.48% -4.47% -7.98% -4.23% -4.23% % 1.94% 2.36% 1.33% % -.98% -.98% % 16.75%.6% 3.37% 8.35% 5.77% 5.77% % -.22% -4.17% -23.6% % -6.11% -6.11% % -3.56% -7.23% -4.84% % -7.3% -7.3% % -1.89% % % 6.54% % % % -13.9% -7.56% -2.22% 99.86% -5.96% -5.96% % -.82% 13.5% 7.88% % 1.62% 1.62% % 3.1%.6% -5.53% % -2.84% -2.84% % -2.36% -9.53% % % % % % % % % 17.54% % -2.46% WIL PAWS 215 Percent Change 4/12/216

17 Percent Change PAGE LEFT BLANK INTENTIONALLY WIL PAWS 215 Percent Change 4/12/216

18 Percent Total Percent of Total Sales by Type of Use (215) Multi Res 7.5% Commercial 2.3% Industrial.% Residential 65.5% Government 6.3% Other.3% WIL PAWS 215 Percent Total 4/12/216

19 Percent Total California Water Service Company - Willows Districts Worksheet 6 Water Supply and Demand Analysis and Projections Percentage of Total Sales Percent Year Residential Multi Res Commercial Industrial Government Other Total % 1.78% 14.99%.% 5.66%.12% 1.% % 2.99% 15.89%.% 6.2%.4% 1.% % 3.41% 17.21%.% 6.85%.6% 1.% % 3.56% 16.35%.% 5.22%.1% 1.% % 3.4% 16.3%.% 5.6%.9% 1.% % 3.6% 15.95%.% 6.9%.5% 1.% % 5.2% 16.27%.% 6.55%.% 1.% % 5.87% 16.81%.% 7.11%.% 1.% % 6.23% 16.61%.% 6.85%.% 1.% % 6.94% 16.83%.% 6.34%.% 1.% % 7.8% 16.24%.% 7.27%.% 1.% % 7.9% 16.7%.% 6.84%.% 1.% % 7.6% 15.21%.% 6.2%.% 1.% % 6.99% 16.37%.% 6.57%.% 1.% % 7.26% 14.88%.% 7.39%.% 1.% % 7.81% 16.41%.% 7.23%.% 1.% % 8.12% 15.63%.% 6.59%.% 1.% % 8.9% 15.62%.% 6.25%.% 1.% % 8.57% 16.56%.% 5.77%.% 1.% % 6.8% 15.17%.% 5.45%.% 1.% % 6.9% 15.91%.% 6.34%.% 1.% % 5.21% 16.9%.% 6.37%.% 1.% % 4.44% 16.52%.% 6.33%.% 1.% % 5.58% 18.47%.% 7.59%.% 1.% % 5.42% 16.49%.% 7.47%.% 1.% % 5.52% 16.45%.% 7.18%.13% 1.% % 5.68% 17.1%.% 7.35%.3% 1.% % 6.27% 16.17%.% 9.5%.5% 1.% % 6.67% 16.51%.% 7.42%.18% 1.% % 6.92% 16.47%.% 7.6%.9% 1.% % 8.13% 17.18%.% 7.44%.12% 1.% % 7.51% 16.89%.% 7.74%.25% 1.% % 6.74% 17.33%.% 7.54%.7% 1.% % 7.15% 17.84%.% 7.33%.8% 1.% % 7.92% 18.31%.% 6.67%.21% 1.% % 7.52% 2.34%.% 6.3%.31% 1.% WIL PAWS 215 Percent Total 4/12/216

20 Percent Total Percent of Total Demand by Type of Use (215) Government, 5.88% Unaccounted, 6.77% Other,.29% Industrial,.% Commercial, 18.96% Residential, 61.9% Multi Res, 7.1% WIL PAWS 215 Percent Total 4/12/216

21 Percent Total California Water Service Company - Willows Districts Worksheet 7 Water Supply and Demand Analysis and Projections Percentage of Total Demand Percent Year Residential Multi Res Commercial Industrial Government Other Unaccounted Total % 1.64% 13.79%.% 5.2%.11% 8.% 1.% % 2.76% 14.61%.% 5.7%.4% 8.% 1.% % 3.14% 15.83%.% 6.31%.5% 8.% 1.% % 3.27% 15.4%.% 4.81%.% 8.% 1.% % 2.8% 14.75%.% 5.15%.9% 8.% 1.% % 2.82% 14.68%.% 5.6%.5% 8.% 1.% % 4.61% 14.97%.% 6.3%.% 8.% 1.% % 5.4% 15.46%.% 6.54%.% 8.% 1.% % 5.73% 15.29%.% 6.3%.% 8.% 1.% % 6.38% 15.48%.% 5.83%.% 8.% 1.% % 6.52% 14.94%.% 6.69%.% 8.% 1.% % 6.52% 14.78%.% 6.3%.% 8.% 1.% % 6.5% 13.99%.% 5.7%.% 8.% 1.% % 6.43% 15.6%.% 6.4%.% 8.% 1.% % 6.68% 13.69%.% 6.8%.% 8.% 1.% % 7.18% 15.1%.% 6.65%.% 8.% 1.% % 7.47% 14.38%.% 6.6%.% 8.% 1.% % 7.45% 14.37%.% 5.75%.% 8.% 1.% % 7.88% 15.24%.% 5.31%.% 8.% 1.% % 6.26% 13.96%.% 5.2%.% 8.% 1.% % 5.6% 14.63%.% 5.83%.% 8.% 1.% % 4.79% 15.55%.% 5.86%.% 8.% 1.% % 4.9% 15.2%.% 5.82%.% 8.% 1.% % 5.13% 16.99%.% 6.98%.% 8.% 1.% % 4.99% 15.17%.% 6.87%.% 8.% 1.% % 5.8% 15.14%.% 6.6%.12% 8.% 1.% % 5.23% 15.65%.% 6.76%.3% 8.% 1.% % 5.77% 14.88%.% 8.33%.5% 8.% 1.% % 6.13% 15.19%.% 6.83%.17% 8.% 1.% % 6.36% 15.15%.% 6.99%.8% 8.% 1.% % 7.48% 15.8%.% 6.84%.11% 8.% 1.% % 6.91% 15.54%.% 7.12%.23% 8.% 1.% % 6.2% 15.94% 6.94%.65% 8.% 1.% % 6.58% 16.42% 6.75%.7% 8.% 1.% % 7.35% 17.% 6.19%.19% 7.19% 1.% % 7.1% 18.96% 5.88%.29% 6.77% 1.% WIL PAWS 215 Percent Total 4/12/216

22 TOT Cht Historical & Projected Services 4, 3,5 3, Annual Services Projection Master Plan 21 UWMP 2,5 Services 2, 1,5 1, WIL PAWS 215 TOT Cht 4/12/216

23 Serv Proj California Water Service Company - Willows Districts Worksheet 8 Water Supply and Demand Analysis and Projections Customer Category Selected Trend Growth Rate Actual Services Projected Services Base Year SFR SFR_F 1 Yr. Avg.+Planned Dev 1.9% 1,913 1,952 1,976 2,16 2,16 2,218 2,35 2,572 2,67 2,642 MFR MFR_F 5 Yr. Avg.+Planned Dev 1.28% COM COM_A Zero Growth Rate.% IND IND_A Zero Growth Rate.% GOV GOV_B.25.25% OTH OTH_B.25.25% TOTAL Average growth rate % 2,25 2,31 2,337 2,371 2,371 2,578 2,717 2,94 2,976 3,13 Notes: Percent of Total COM 12.% 12.2% 11.6% 11.2% 11.2% 1.3% 9.8% 9.1% 9.% 8.8% GOV 2.% 2.% 2.2% 2.% 2.% 1.9% 1.8% 1.7% 1.7% 1.7% WIL PAWS 215 Serv Proj 4/12/216

24 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections SFR Historical & Projected Services Worksheet 8a 3, 2,5 2, SFR Services 1,5 1, 5 Annual Services Monthly Data SFR_A SFR_B SFR_C SFR_D SFR_E SFR_F Basin Street Subdivision: 453? (456) residential homes. 8 Phases: 55, 55, 59, 67, 32, 51, 63,74 lots No project timeline, assumed between 216 and 23 1-yr (.28%) growth rate assumed for in-fill Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate SFR 1,913 1,952 1,976 2,16 SFR_A Zero Growth Rate.% 2, SFR_B 5 Yr. Avg..4% 2, SFR_C 1 Yr. Avg..32% 2, SFR_D 15 Yr. Avg..35% 2, SFR_E 2 Yr. Avg..36% 2, > SFR_F 1 Yr. Avg.+Planned Dev 1.9% 2, WIL PAWS 215 Serv Proj 4/12/216

25 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections MFR Historical & Projected Services Worksheet 8b MFR Services Annual Data Monthly Data MFR_A MFR_B MFR_C MFR_D MFR_E MFR_F Basin Street Subdivision 18 multifamily apartment complex Estimated units per MFR service account 8.23 equivilent service accounts for 18 units No project timeline, assumed between 217 and yr (.13%) growth rate assumed for in-fill Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate MFR MFR_A Zero Growth Rate.% MFR_B 5 Yr. Avg..49% MFR_C 1 Yr. Avg..34% MFR_D 15 Yr. Avg..21% MFR_E 2 Yr. Avg. -.9% > MFR_F 5 Yr. Avg.+Planned Dev 1.28% WIL PAWS 215 Serv Proj 4/12/216

26 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections COM Historical & Projected Services Worksheet 8c COM Services Annual Services Monthly Data COM_A COM_B COM_C COM_D COM_E Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate COM > COM_A Zero Growth Rate.% COM_B 5 Yr. Avg. -.28% COM_C 1 Yr. Avg. -.15% COM_D 15 Yr. Avg..18% COM_E 2 Yr. Avg..21% WIL PAWS 215 Serv Proj 4/12/216

27 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections IND Historical & Projected Services Worksheet 8d IND Services Annual Services Monthly Data IND_A IND_B IND_C IND_D IND_E Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate IND > IND_A Zero Growth Rate.% IND_B.25%.25% IND_C.5%.5% IND_D.75%.75% IND_E 1.% 1.% WIL PAWS 215 Serv Proj 4/12/216

28 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections GOV Historical & Projected Services Worksheet 8e GOV Services Annual Services Monthly Data GOV_A GOV_B GOV_C GOV_D GOV_E Linear (Annual Services) Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate GOV GOV_A Zero Growth Rate.% > GOV_B.25%.25% GOV_C.5%.5% GOV_D.75%.75% GOV_E 1.% 1.% WIL PAWS 215 Serv Proj 4/12/216

29 Serv Proj California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections OTH Historical & Projected Services Worksheet 8f OTH Services Annual Services Monthly Data OTH_C OTH_B OTH_A OTH_D OTH_E Customer Actual Projected Growth Category Trend Base Year Services Services Services Services Services Services Rate OTH OTH_A Zero Growth Rate.% > OTH_B.25%.25% OTH_C.5%.5% OTH_D.75%.75% OTH_E 1.% 1.% WIL PAWS 215 Serv Proj 4/12/216

30 Projected Demand Graph Historical & Projected Demand (WIL) Historical & Projected Demand (Acre-Feet) 3,5 3, 2,5 2, 1,5 1, Historical Demand AVG+SD AVG SBx7-7 AVG-SD Water Supply and Facility Master Plan 21 UWMP Average Demand Year WIL PAWS 215 Projected Demand Graph 4/12/216

31 Demand Proj California Water Service Company - Willows Districts Worksheet 9 Water Supply and Demand Analysis and Projections Actual & Projected Demand in Acre-Feet Customer Category Actual Demand (AFY) Projected Demand (AFY) ,335 1,468 1,556 1,73 1,726 1,749 SFR 1,194 1,245 1,158 1,152 1,275 1, ,143 1,257 1,332 1,458 1,478 1, ,46 1,19 1,213 1,229 1, MFR COM IND GOV OTH UAWF ,119 2,294 2,419 2,588 2,62 2,652 TOTAL (AFY) 1,676 1,88 1,814 1,827 1,934 1,957 1,493 1,44 1,813 1,961 2,66 2,21 2,237 2,265 1,58 1,628 1,712 1,832 1,854 1, TOTAL (MGD) WIL PAWS 215 Demand Proj 4/12/216

32 Projected Sources Graph Historical and Projected Distribution of Demand by Source 2,5 Historical Projected 2, Production in Acre-Feet 1,5 1, Surface Water Purchased Water Conservation Year WIL PAWS 215 Projected Sources Graph 4/12/216

33 Sources California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections Historical and Projected Distribution of Demand by Source Worksheet 1 Ground Water Conservation Total Year MGD AFY MGD AFY MGD AFY MGD AFY Year MGD AFY MGD AFY MGD AFY MGD AFY , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,265 Ground Water Conservation Total WIL PAWS 215 Sources 4/12/216

34 PerCapita chart Per Capita Consumption (WIL) Gallons Per Capita Per Day Year Gross Demand Residential Only Avg Demand Avg Demand w/ Cons SBx7-7 Targets WIL PAWS 215 PerCapita chart 4/12/216

35 PerCapita California Water Service Company - Willows Districts Worksheet 15 Water Supply and Demand Analysis and Projections Per Capita Water Demand Calculation Historical Projected Gross Demand Residential Only Avg Demand Avg Demand w/ Cons SBx7-7 Targets Year POP Usage Per Capita Usage Per Capita Demand Per Capita Demand Per Capita (AFY) (GPCPD) (AFY) (GPCPD) (AFY) (GPCPD) (AFY) (GPCPD) ,936 1, , ,974 1, , ,91 2, , ,931 1, , ,934 1, , ,946 1, , ,953 1, , ,973 2, , ,982 1, , ,982 2, , ,979 1, , ,7 1, , ,58 2, , ,8 1, , ,945 1, , ,967 1, , ,5 1, ,35 1, , ,28 1, , ,77 1, ,118 1, ,285 1, , ,427 1, , ,595 1, , ,737 1, , ,915 1, , ,535 2, , ,155 2, , ,296 2, , ,439 2, , WIL PAWS 215 PerCapita 4/12/216

36 Demand Grph Average Day, Maximum Day, Peak Demand 7 6 Demand in Million Gallons per Day Year (GPM) Ratio Estimated Peak Hour Demand (MGD) WIL PAWS 215 Demand Grph 4/12/216

37 ADD MDD PHD California Water Service Company - Willows Districts Worksheet 11 Water Supply and Demand Analysis and Projections Historical and Projected Average Day, Maximum Day, and Peak Demand Historical Annual Average Day Demand Maximum Day Demand MDD Estimated Peak PHD PHD Measured Peak PHD Demand Demand Demand Per Service Demand Per Service ADD Hour Demand MDD ADD Hour Demand MDD Year (AFY) (MGY) (MGD) (GPD) (MGD) (GPD) Ratio (MGD) (GPM) Ratio Ratio (MGD) (GPM) Ratio 198 1, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , year Average (21-21) , , year Average (26-21) , , WIL PAWS 215 ADD MDD PHD 4/12/216

38 Marplot Summary California Water Service Company - Willows Districts Worksheet 12 Water Supply and Demand Analysis and Projections MarPlot Summary System Census Blocks US Census 2 Summary US Census 21 Summary 2-21 Change Housing Housing Percentage Percentage Census Density Population Units Density Population Units Density Population HU Blocks Change (HU) (HU) Change Change Willows 164 6,946 2, ,967 2, % 3.5% -3.1% 164 6,946 2, ,967 2, % 3.5% -3.1% MARPLOT disclaimer: The population and housing number given above are only rough estimates. They are based on the US Census Blocks. Although Census Blocks are polygons, MARPLOT uses the centoid, or center point, rather than the entire polygon. If a Census Block centroid is within any of the MARPLOT selected objects, the population and housing numbers for that block are tallied, even if only part of the block is within the selected object. It is possible for a block not be counted if its centroid is not within selected objects, even thought part of the block is within the selected objects. WIL PAWS 215 Marplot Summary 4/12/216

39 HOU Housing Projections 4,5 Total Residential Dwelling Units US Census CDOF Water Supply and Facilities Master Plan Trend of Glenn County Economic Forecast 21 UWMP 4, 3,5 3, House/Service Count 2,5 2, 1,5 1, 5 Note: WSFMP projection estimated with 21.9 unit/mfr service Year WIL PAWS 215 HOU 4/12/216

40 POP Population Projections 12, Cal Water Projection CDOF Trend of Glenn County Economic Forecast 29/1 Glenn County Regional Transportation Plan Update US Census Water Supply and Facilities Master Plan 21 UWMP 1, 8, Population 6, 4, 2, Year WIL PAWS 215 POP 4/12/216

41 Population California Water Service Company - Willows Districts Worksheet 12 Water Supply and Demand Analysis and Projections Population Estimate US Census Persons per Housing Unit Single Family Multi Family Residential Flat Rate Residential Residential Unit Residential Services (DU) Services Units (DU) Density Services (DU) Year Population Housing Units 2 6,946 2, , ,967 2, , % 3.5% -3.1% 37.4% 54.2% 4.% -32.6% -37.7% Single Family Multi Family Residential Flat Rate Total Estimated Persons per Residential Services Residential Unit Residential Residential District Housing Unit Year Services (DU) Units (DU) Density Services (DU) Dwelling Units Population , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,7 27 1, , , , , ,8 29 1, , , , , , , , , , , ,35 /\ 213 1, , ,28 /\ 214 1, , ,77 ACTUAL 215 2, , ,118 ACTUAL PROJECTED 22 2, , ,915 PROJECTED 225 2, , ,535 \/ 23 2, , ,155 \/ 235 2, , , , , , , ,439 Notes: linear extrapolation used to estimated MFR-DU from 2. Estimate extend until 211 due to reclassification, afterwards a constant MFR Unit Density is used. WIL PAWS 215 Population 4/12/216

42 Annual Rain Comparison of Annual Rainfall to Historical Average 2% 18% 16% 14% 12% 1% 114.6% Demand per Service 9.4% Demand per Service (GPD) 8% 73.9% Percent Deviation from Average (%) 6% 4% 2% % -2% -4% -6% -8% -1% -8.4% % % % % % % % % % % % 1.1% 4.5% -17.% 24.6% 7.2% Annual Rainfall Totals (inches) % % % % % % % % % % % % % % % % Calendar Year WIL PAWS 215 Annual Rain 4/12/216

43 TempRain California Water Service Company - Willows Districts Worksheet 13 Water Supply and Demand Analysis and Projections Temperature & Rainfall History Precipitation Temperature Demand per Percent of Precipitation ( present) Year Annual Percent Tmax Tmin Mean Service Average Mean High Year Low Year (in) Variation ( F) ( F) ( F) (gpd) Demand in. in. - in % % Jan % % Feb % % Mar % % Apr % % May % % Jun % % Jul % % Aug % % Sep % % Oct % % Nov % % Dec % % % % Annual % % % % Temperature ( present) % % Tmax Tmin Mean % % F F F % % Jan % % Feb % % Mar % % Apr % % May % % Jun % % Jul % % Aug % % Sep % % Oct % % Nov % % Dec % % % % Annual % % % % % % % % Monthly Average Eto 1) Eto values based on California Irrigation Management Information System (CIMIS), welcome.jsp, EvapoTranspiration (Eto) Zones Map, Zone 12 2) PPT, Tmax, Tmin obtained from PRISM where, PPT is total montly rainfall, Tmax is average of maximum temperatures for given month, and Tmin is average of minimum temperatures for given month 3) Percent variaion based on average of 198 to present values WIL PAWS 215 TempRain 4/12/216

44 TempRain Chart Average Monthly Temperature, Rainfall, and Monthly Eto Mean Monthly Temperature, F Mean Monthly Rainfall, inches Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg. Temp Avg. Rainfall Monthly Average Eto WIL PAWS 215 TempRain Chart 4/12/216

45 Wells California Water Service Company - Willows Districts Worksheet 14 Water Supply and Demand Analysis and Projections Groundwater Production Facilities WIL PAWS 215 Wells 4/12/216

46 Indoor Usage Chart Estimated Indoor Water Usage Single Family Residential (SFR) Multi Family Residential (MFR) Commercial (COM) Industrial (IND) Govenment (GOV) Est. Indoor Usage (Historical) Est. Indoor Usage (Projected) Estimated Indoor Water Usage (AFY) WIL PAWS 215 Indoor Usage Chart 4/12/216

47 Indoor Usage California Water Service Company - Willows Districts Water Supply and Demand Analysis and Projections Estimated Indoor/Outdoor Water Usage Single Family Residential (SFR) Multi Family Residential (MFR) Commercial (COM) Year SFR Jan Usage Metered SFR Indoor Use (Annualized 9% of January Total) Indoor Flat Rate Usage (AFY) Total SFR Indoor Usage JAN (CCF) AFY AF/Serv AFY GPD/Serv % (CCF) AFY GPD/Serv % (CCF) AFY GPD/Serv % 198 2, % ,649 68% 6, % , % ,513 42% 5, % , % 1, ,479 74% 6, % , % 1, ,328 71% 5, % , % 1, ,137 87% 5, % , % 1,25 3 1,345 59% 6, % , % 1, ,681 51% 5, % , % 2, ,193 57% 6, % , % 2, ,27 53% 6, % , % 2, ,996 69% 6, % 199 5, % 3, ,232 67% 6, % , % 3, ,669 77% 7, % , % 3,6 89 3,65 73% 7, % , % 3, ,154 73% 7, % , % 3, ,694 72% 6, % , % 3, ,679 72% 6, % , % 4,36 1 3,884 71% 6, % , % 4, ,854 8% 6, % , % 4, ,88 88% 8, % , % 3, ,863 78% 7, % 2 9, % 4,43 1 4,68 93% 6, % 21 1, % 3, ,224 84% 7, % 22 9, % 2, ,439 71% 7, % 23 1, % 2, ,918 74% 8, % 24 9, % 2, ,816 68% 7, % 25 1, % 3, ,186 79% 7, % 26 1, % 2, ,953 72% 7, % 27 1, % 2, ,969 62% 6, % 28 11, % 2, ,332 63% 6, % 29 12, % 3, ,398 8% 7, % 21 11, % 3,8 76 2,1 68% 5, % , % 3, ,51 8% 5, % , % 2, ,756 7% 5, % , % 2, ,898 73% 5, % , % 3, ,172 85% 5, % , , , , , , , , , , , , Note: GPD/Service is estimated as the average of the last 5 years for given customer class. MFR Jan Usage MFR Indoor Use (Annualized 9% of January Total) COM Jan Usage COM Indoor Use (Annualized 9% of January Total) WIL PAWS 215 Indoor Usage 4/12/216

48 Indoor Usage California Water Service Company - Willows Districts Worksheet 16 Water Supply and Demand Analysis and Projections Estimated Indoor/Outdoor Water Usage Industrial (IND) Govenment (GOV) Estimated Indoor/Outdoor Usage Year IND Jan Usage IND Indoor Use (Annualized 9% of January Total) GOV Jan Usage GOV Indoor Use (Annualized 9% of January Total) Est. Indoor Usage Est. Outdoor Usage Est. Indoor Usage Est. Outdoor Usage (CCF) AFY GPD/Serv % (CCF) AFY GPD/Serv % AFY AFY % % 198 1, % 459 1,217 27% 73% , % 455 1,234 27% 73% , % % 65% , % 488 1,48 32% 68% , % 59 1,333 28% 72% % 57 1,31 28% 72% , % 55 1,229 29% 71% , % 541 1,218 31% 69% , % 543 1,24 3% 7% , % 599 1,72 36% 64% 199 1, % 624 1,191 34% 66% , % 757 1,33 42% 58% % 659 1,212 35% 65% , % 627 1,131 36% 64% , % 672 1,313 34% 66% , % 654 1,173 36% 64% , % 76 1,183 37% 63% , % 75 1,324 35% 65% , % % 56% , % 735 1,191 38% 62% 2 1, % 766 1,168 4% 6% 21 2, ,186 52% 785 1,171 4% 6% 22 1, % 722 1,34 35% 65% 23 1, % 791 1,11 42% 58% 24 1, % 727 1,315 36% 64% 25 1, % 747 1,21 38% 62% 26 1, % 75 1,188 39% 61% 27 1, % 737 1,312 36% 64% 28 1, % 763 1,161 4% 6% 29 2, ,82 51% % 55% 21 1, % % 56% 211 1, % % 55% 212 1, % % 56% 213 1, % % 61% 214 1, % % 39% % 45% ,159 37% 63% ,166 38% 62% ,192 37% 63% ,198 38% 62% ,226 37% 63% ,29 38% 62% ,384 37% 63% ,41 37% 63% ,419 37% 63% WIL PAWS 215 Indoor Usage 4/12/216

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