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HomeMy WebLinkAboutDocumentation_Regular_Tab 11A_4/13/1989 r p VILLAGE OF TEQUESTA • * Post Office Box 3273 • 357 Tequesta Drive ',� Tequesta, Florida 33469-0273 • (407) 575-6200 = • FAX: (407) 575-6203 MEMORANDUM: TO: Village Council FROM: Thomas G. Bradford, Village Manager //� DATE: April 7, 1989 SUBJECT: Water Conservation Rates Attached hereto, please find information prepared by Gee & Jenson for your consideration relative to the Water Conservation Rate increase discussion scheduled for the Village Council Meeting of April 13, (Agenda Item V B) . The current rate is $1.05 per 1,000 gallons regardless of amount consumed. Gee & Jenson recommends that the threshold for Water Conservation Rates be established at the consumption level of 30,000 gallons per month. The recommended range of rates above 30,000 gallons is between $2. 55 per 1,000 and $3.05 per 1.,000 gallons consumed. TGB/jmm Attachment Ti/tom i f .w w e = i- VILLAGE OF TEQUESTA Z .••d Post Office Box 3273 • 357 Tequesta Drive Tequesta, Florida 33469-0273 • (407) 575-6200 .- FAX: (407)575-6203 April 4, 1989 Mr. Richard Staudinger, P.E. Gee & Jenson P.O. Box 24600 West Palm Beach, Florida 33416-4600 RE: Water Conservation Rate Increase Dear Richard: At the Village Council Meeting of March 30, 1989, the Village Council requested to have a Workshop Meeting prior to the Village Council Meeting scheduled for April 13, 1989, tentatively scheduled to commence at 9. of reviewing the specific recommendations•Moffor Geehe&pJenson regarding the Water Conservation Step-Rate Increase. Therefore, please make arrangements to be in attendance at the aforementioned Village Council Meeting for the purstated. Specifically, you should be prepared to addresssthso e following: o Recommended threshold(s) upon which higher water rates would be effective. o Recommended water rate(s) to be effective at the recommended threshold(s). I am in possession of your last correspondence ard to the above matters. However, Tom Hall publiclystatedethat Gee & Jenson was undergoing further refinement of their previous recommendations. Therefore, should you desire to provide me with additional correspondence relative to recommendations, this information must be in m noby by 12:00 P.M. , Friday, April 7, 1989, for submissionewithnthe agenda packets which will be disseminated on that day. Should you have any questions regarding this matter, please contact either myself or Tom Hall at your earliest convenience. Very truly yours, Thomas G. Bradford Village anager TGB/jmm cc: Thomas C. 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II I 1' 1 _ _ _ _ I t _ . _ _ - } s _ '1 1 I • • i !_--_-_ r.,J..y_._.,.�._:._ T.. _ - - •.i_.• - - y-I -_I 1,_f`.:: : I 1-i--1-I_I I';._ • • :I I i• -J -mil T t I ` _ i _ L • • , • • : • x , : • • - ! : • : i • .. ! • : ' • . • : : • :. i , • . - : . 7 : • • • , ,t4 It •• • 1 ' 2 ; - ' : ;_ , ! = • , " , ' : . , k Li 9 _ i I 1 _ r''� 1 V .i -�i 1 i � 1 : ..y ice-. _ t t -3 i +-. - ��" $' ; ' t 1 I • tfl -. -- i- , : -- ' •t-'to, . . . . - . -.... i 1 ' 1 I ca>"\\ \.,. GEE&JENSON February2 4 •� Engineers-Architects- 19 8 9 Planners,Inc. w N Mr. Tom Bradford Village of Tequesta 357 Tequesta Drive P.O. Box 3273 Tequesta, FL 33458 Re: Village Water Rates Dear Tom: As a follow up to my letter of January 26, 1989 I have, with the assistance of Mr. Tom Hall of the Village Water Department, further analyzed residential water usage within Tequesta. My review covers usage from January 1986 to the present (January 1989) . Water Usage The attached figures graphically depict the monthly water usage of the five "sub areas" within the service area of the water department. i have added a "trend line" to the graphs to depict generalized trends and to factor out monthly fluctuations. The two graphs for each subarea show monthly flows per meter and per capita water usage (gpcd) for all 5/8 inch meters. Below is a recap of the graphs: TREND LINE VALUES FROM GRAPHS Area 1/89 Avg nualNo. nual Description 1/89 GPCD Change MUsagey Change 1 Jupiter Inlet Colony 232 +6.5% 19,800 Gal +10. 1% 3 Martin County 225 +0.8% 18, 600 Gal +00. 0% 5 Tequesta 150 +5. 1% 12, 000 Gal + 4.4% 2 Palm Beach County 139 +7.7% 11,400 Gal + 6.3% 4 Jupiter 87 +3 .4% 6, 600 .Gal + 3 .3% One Harvard Circle • P.O.Box 24600 • West Palm Beach,Florida 33416-4600 • 407/683-3301 • Telex 513472 G8J WPB Mr. Tom Bradford Village of Tequesta February 24, 1989 - Page Two An independent check of water department billings has shown that the master meter serving Jupiter Martin Water Association (not .shown graphically or included in above values) is recording very large water usage. This master meter serves approximately 30 homes in Rolling Hills and approximately 40 homes on Jupiter Island. As a comparison to the above values, Rolling Hills per capita usage (averaged for 1988) last year was 584 gpcd, and Jupiter Island usage last year averaged 1282 .gpcd. To put this in perspective, these 70 homes are using an average of over 5.5 million gallons of water per month. This is over 6% of the water sold by- the utility to less than 2% of the customers. Some action above and beyond step rate pricing is in order for this particular area. Perhaps ENCON could be approached to supply irrigation quality water to these 70 residences. IQ water could save the VillPcre up to 85% of the finished water flows presently supplied to t. Jupiter Martin Water Association (± 4.7 million gallons per month) . Also, leaks within the distribution system on the Association side of the master meter may be responsible for some water losses that the Association is being billed for. Except for the Jupiter Martin Water Association flows, water usage in Tequesta does not look too bad. The annual per capita flow recommended for system design parameters is 150 gpcd, based on 2.7 people per dwelling unit. Referring to the previous recap, or graphs, flows to Jupiter customers are actually below this value, while flows to customers in Palm Beach County and Tequesta residents are very close to the average value. Per capita flows to customers in Martin County and Jupiter Inlet Colony, however, are more than 50% above average and continuing to increase. If the Village implemented a step rate for flows exceeding 30,000 gallons per month (370 gpcd) very few customers in Jupiter, Palm Beach County and Tequesta proper would be affected. Most of the impact would be to customers in Martin County, Jupiter Inlet Colony, and of course the Jupiter Martin Water' Association. 30,000 gallons per month is the usage figure discussed at the water system workshop in January and a value we recommend at this time. GEE&JENSON Engineers,Architects,Planners,Inc. • 111111/ Mr. Tom Bradford Village of Tequesta February 24, 1989 - Page Three Water Rate Typically water rates are established utilizing - a formula or rate analysis intended to recover water production and delivery costs and allow a reserve fund for emergencies and long range planning. This methodology does not apply, however, for a step rate intended to encourage customers to conserve water. Our approach to recommending a conservation mandated water rate for usage over 30,000 gallons per month is loosely based upon system costs to deliver peak flows. The American Water Works Association estimates that 85% of a water utilities system costs are for facilities to meet maximum day and peak hour water demands. In other words out of a $100,000 investment in capital faciltteis, only $15,000 is required for supplying average annual flows, while $85,000 is required for facilities to meet daily and hourly maximum demands. Any reduction in these peak flows (though conservation) could significantly impact the cost of future system expansions. The price "step up" for excessive usage (peak flows) for a water utility could, therefore, be at least 50% and as much as 85% of the total cost. per thousand gallons when the step rate kicks in. The base rate presently is at $1.05 per thousand gallons. We would recommend a "step" of between $1.50 and $2.00 per thousand gallons be added to the base rate of $1.05 per thousand gallons for all monthly water usage in excess of 30,000 gallons per dwelling unit. This represents a range of between 59% and 65% for the "step up" rate. Implementation The step rate should be implemented as soon as NCR completes software modifications to allow the Village to separate multi- family units and commercial units for billing purposes. Tom Hall indicated this would occur within the next few months. I also recommend publicizing the new rate and explaining the need for conservation of water by residents. Publicity should include newsletter and newspaper articles as well as a full discussion at • the Village Council meeting prior to adoption. GEE&JENSON Engineers,Architects,Planners.Inc. • Mr. Tom Bradford Village of Tequesta February 24, 1989 - Page Four • Please call if you have further questions, please call. VV/(. -4? yours, l W. Richard Staudinger, P.E. WRS:kmk Project Manager 89-037_ cc: Tom Hall • • I. . • GEE&JENSON Engineers,Architects,Planners,Inc. vILvlvt ur I t4Ut.. IA 120 - PER GW1Th coNsMP. JIPfTER 1 11 110 - A . ®C g 100 - m • n Un ,1 ..7, 1, 1;, 1 A ar7 IC 00 Tin nnr , ao - , • • • U U • • 50 I I 1 1 1 1 1 1 I I 1 1 I 1 1 I 1 I I I I 1 I I I I I I I I I I I I 1 • 1 2345878G1011121 2 3 4 5.67801011121 234567801011121 I t i+b • AIDNTH f 4 f 4 81' VILLAGE OF TEQ., JUPITER 30 JAN 86 TO PRESENT 5/8 Af1RSAVG MONTH 2$ - 26 - . • 24 - 22 - 20 - i.. t8 - o 16 - 6S 14 - 12 - 10 - • 8 - 6 ' G,Goo 4 - 2 - I I I I 1 I 1 1 1 1 I I I 1 1 1 1 I I 1 7 I I I I I I 17 1 1 r I I I 1 2 3 4 5 87801011121 2 34 58 78 01011121 23458 7801011121 AON114 VILLAGE OF TEQU ESTA PER CAQITA CONSMP. PALM EO:H CO. 290 — 270 — • 26.0 250 — wit) 240 — E 23, _ 220 — n U 210 — z 200 _ \ 190 - 1130 — s7 170 — Z 18+0 — i 150 — n w A 13, u •• • 130 — _ 120 — Or V • ! 100 - U „0 _ ,,, VJ J 4 Y. I I I I I I I I 1• I I I I l I I I I I r r I l I I l 1 I I 1 , 11 I l 1 2 3 4 5 8 7 8111011121 2 3 4 5 8 78 0101 1121 23 4 58 78 0101 112 1 • • VILLAGE OF TEQ., PALM BEACH CO. JAt4 88 TO PRESENM, 5/8 hEIERB 30 • 28 — 24 — 22 — h 20 — 1% 18 — O C I 1$ — EI 14 12 l'400 0 10 Fz 8 - ybov 8 4 2 — • 0 se I t 1 234587801011121 234587801011121 234587801011121 MONTH VILLAGE OF TEQUESTA PER CAPITA OOMUMPT10N, IEDLESTA230 _ 220 - 210 - ZOO -• c 180 - z 170 - 160 -' " n ^ a 150 r 15 6 140 - t30 lir 120 _ 110 - u 100 lir - GO I I I I 1 I I I 1 1 1 I •I 1 1 1 I I I I I I 1 I 11 I 11 I I I I 1 I 1 234567801011121 2 34 58 78 01011121 23 458 7801011121 e--7 if PP MONTH VILLAGE OF TEQ., TEQUESTA JAN 88 TO PFZF31 NT 5/8 MTRSAVG MONTH 30 28 - 26 - 24 - • 22 - 20 - 18 - o$ 18 14 - 12 - • _Le° 121060 10 - • e - 6 - • - • 2 - . 0 1 1 1 I. I I 1 1 I I I I 1 1 1 1 1 1 1 1 1 I I I I I 1 I I 1 1 1 1 1 1 1 2 345 67 801011121 2 34 56 78 01011121 23 456 78 01011121 MONTH 360 PER CAPITA COMP. MARTN COUNTY 360 . 340 — r 1 330 320 —cc 31 0 — 300 — = 290 _ re 270 —40 2 CI • 240 — n 220 z25 0 210 — 1 G0 — . • 180 • — 170 — 160 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2345678G1011121 2 3 4 5 6 7 8 G1011121 2345878 G1011121 MONTH • • VILLAGE OF TEQ., PALM BCH CO `l 30 'N 8670 PRIMENT.s/8 L€—IERS. AVG MONTH • 24 — • • 22 — • 20 — 18 a,boo • j 16 - ' S g 14 12 — • 10 - 8 - - • 4 — . 2 — 1 I 1 1 1 1 1 I I I I ill II to is 1 2 345 67 8G1011121 2 3 4 5 6 7 8 G1011121 23 456 78 01011121 moms VILLAGE OF TEQUESTA • PER CA RTA CONSMP. JIPITDR R•LET OOLUNYI 340 — n 330 310 — W�K1 GI 300 — Ii . 200 — iii ?gyp — o i 270 — J 0 Z '� — '' r 43 ?50 — F... kik r. 2 220 Ili m r^� L 210 — j u 200 — L , 12 ' 100 114 lir , ..• ., _ ..,. ,.,:.: -180 If , 170 — 180 — 150 — . '. .140 1 1 1 I 1 1 11 1 1 11 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 I 1 1 11 1 1 1 2 345 87 801011121 2 34 58 78 01011121 23 458 78 G1011121 MONTH • • • VILLAGE OF TEQ., JUP.INLET COL. 30 JAN 86 70 PFsBENT• s/8 M61ERS 28 2e - 24 — � _ 0 L .. 20 1 l y,aao 18 _ 1 - � � E4' ... v iiir or 1 „ u • 0 10 — 8 - $ _ 4 - 2 — * 1 1 I I I I I l l 1 I I I I i 11 I I I l 1 I l 7 7 1 i 1 1 1 1 1 IT 1 2 3 4 5 8 7 8 01011121 2.3 4 5 8 7 8 81011121 2 3 4 5 8 7 8 01011121 MGm.1s FEBRUARY, 1989 Billing register indicates: 10% - 12% of residential customers used 30+ 5% of these used 50,000 gallons + - AyszasiD y„...consumpti on Qj aohe over ast 2 Y 1. Inlet Colony 283 gpc/d 232 2. Jupiter 24 gpc/d 87 3. Palm Beach County 104 gpd/d 139 4. Martin County 192 gpc/d 225 5. Tequesta 137 gpc/d 150 6. Rolling Hills* 400 gpc/d 584 7. Jupiter island* 677 gpc/d 1,200 • * Jupiter/Martin Water Association z. . . c r a u u r+ivi r U J t6. E. BRADFORD'8 WATER BILL FOR THE LAST 6 NORMS Conept. Old Rate New Rate iy.OQQle) ,mat) insp. Rate) Increase October 30 $39.80 $39.80 -0- November 37 - $47.15 $57,65 $10.50 December 30 $39.80 $39.80 -0- January 32 $41 .90 $44.90 $ 3.00 February 27 $36 .65 $36.65 -0- March 18 $27.20 $27.20 -0-