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Home My WebLink About2010-06-02 Council Packet - Work SessionPUBLISHER'S AFFIDAVIT UNITED STATES OF AMERICA, 1 STATE OF ALASKA ss: Denise Reece being first duly sworn, on oath deposes and says: That 1. am and was at all times here in this affidavit mentions, Supervisor of Legals of the Peninsula Clarion, a news i paper of general circulation and publ.is4ed at Kenai, Alaska, that the Public Notice PO tt93105 a printed copy of which is hereto annexed was published in said paper one each and every week consecutive weeks in the issues on the for two successive and following dates: av 26 2010 June 2, 2010 X SUBSCRIBED AND SWORN to me before tlbi. da of June 7010 NOTARY PUBLIC in favor for the State of Alaska. My Commission expires 26- Aug -12 CITY OF KENAI PUBLIC NOTICE D2461 At its regularly scheduled meeting on June 2 2010 the Kenai City Council will hold a public hearing on Ordinance No 2464 -2010, adopting the annual budget the fiscal year beginning July b 2010, and a resolution fixing the rate of levy property tax. The meeting: will be held in the Kenai City Hall Council Chambers, 210 F dalgo Avenue iKenai, Alaska at 7:00 p.m. A copy of the annual budget is available for public review in the office of the Kenai City Clerk at th e above address and at www ci.kenai ak.us Publish 5/26, 6 /2, 2010 PUBLIC NOTICE EN A�NSK Notice is hereby given, the Kenai City Council will meet in a work session on Wednesday, June 2, 2010 at 5:30 p.m. to discuss water treatment options. The work session will be held in the City Council Chambers located at 210 Fidalgo Avenue, Kenai, Alaska and is open to the public. Contact the Kenai City Clerk's office at 283 -7535, extension 231 with questions. Carol L. Freas, City Clerk D/211 Publish: May 31, 2010 Ai .4 Decision Process -T c Work Accomplished to Date City Investigates 4 areas (Togiak) Arsenic Groundwater Study - Final 6/07 (HDL) New Exploratory Wells (HDL) Color Removal Tests - Well 2 (Tenny) Eagle Rock Golf Course 'N Parkside Chinook Ct. 2nd & Spruce Arsenic Removal Pilot Project (Wm. J. Nelson) Color / Arsenic Removal Cost Evaluation (HDL) Bench Scale Treatment Testing at 2nd & Spruce and Well 2 Existing Wells' water quality testing (HDL) Pilot Scale Treatment Testing at 2nd & Spruce and Well 2 Arsenic Treatment Decision Tree Treat Arsenic 1 Improve City of Kenai Water Quantity and Quality Or \ Produce Water With Arsenic Below 10 ppb EPA Standard Treat Color Produce Water With Less Than 15 Color Units (CU) EPA Recommendation Avoid Arsenic Arsenic Below 10 ppb No Existing Wells Were Found Meeting EPA Water Quality Standards with Adequate Production. Information used to Site New Exploration Wells Water From five (5) Exploration Wells Did Not Meet EPA Water Quality Standards Water from One (1) Exploration Well Met EPA Water Quality Standards, but Had Greater than 100 Color Units (North 5.ruce Treat Arsenic L Cost of Treatment not Justified by Well Production Rates (100 -200 gpm) Avoid Color r \ Produce Water With Color Less Than 15 CU Treat Color Use Two Wells Treat to 12 CU (Well 2) Treat to 15 CU (Well 2) 1 Wells Producing Water With Less Than 60 CU Exceeded EPA Arsenic Standards Do Not Like Treatment Because of Chemicals, Capital Costs, and O &M J Unable to Generate Sufficient Run Time Between System Backwash Due to High Initial Color Lower Color Target to 15 CU O &M and Rate Increase is too High. 4, Lowe r Color Target to 20 CU Ion Exchange Treated Water to 20 CU, Plant Cost $7 mil, Unable to Determine Process to Dispose of Brine and Caustic (Haz -Mat) Uses 2,000 to 4,000 Ibs of Salt Per Day Permitting Issues with ADF &G Lower Color Target to 20 CU (Well2) C Media Filtration Preferred and Recommended Alternative, Can Increase Treatment Efficiency Without Additional Capital Costs Parameter Coagulation /Filtration on Exchange Note east o0oe$En 'Paa {4: NaR2a:.5Yx Pre [CY-8'4`di6me:e: x12 --0-* 222¢Ln an Y.cd a.- .6nte�se>suretfteri rzm: vnhaitnh s.4gpmea:caTrssSpm } :ft '.Y+r (3loi 0*ro-ooVlssv'x- iC -E'QE tttf V(S C`Yr- rt 9Et I'C300 _<fcez oe te'a faersrare Dy pan ;.xfuit peaf0. nd CIOIC5t ar£4 tzCo M11sU2C.L-r2fi ^Tm; 0lrI3,tuct4 >.etrp`yev&n iron4 WSLY .i- T'Yk Carp,. 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H6:F2?\il2LFe Capital Cost Estimate ITEM ESTIMATED QUANTITY DESCRIPTION UNIT PRICE TOTAL PRICE EATMENT SYSI r Trea 3,470,000 $3,470, 10 Adminlsln nfLab Equipment TE CIV1L WORK lianeous Site Development Costs Yard Piping 8Sems 3 4 5 6 1 14,000 14,000 34,00 161,000 1. 1 8 Utility Servtes Access Roads and Parking Lancia;apIng security 25,000 21.000 12,000 ,000 mioo 181 0 25,030 21,030 12,030 66,030 Construction Contingency Recommended Construction Budget Su btotai nao 20% $, 623,030 754,1530 4,587,6001 Land Acquisition 0 Owner Administration a 3% 137$30 Design 42 8% 387,030 Construction Management ig 10% 455,500 0 Years Inflation a 2% 0 Total Project Cost $5,551,030 Operations and Maintenance Cost Estimate e Clrem'real Systm Estimated Claemica! Usage (lb /yrear} Cherer'rca! Cost 6 i"bJ Annual Cost iomv dose High dose Cow dose High dose PACI System 30,295 42,705 $ 3.00 $ 91000 S 123,000 Chlorine System $. - No Additional Cost 4€!55 P s S stem 1,460 $. 4.50 $ 7,000 Su6tota! $ 98,000 135.000 Electrical Systerst Estin ated Annual !?sage (kWltcj linitCcrst A l nn a Cost Metering and Transfer Pumps 6,500 0.14 S 900 Supernatant Recycle mumps 6.300 $. 0.14 $ 1,000 settled Solids Pumps 5,400 $ 0.14 rx 800 lvliscelleneous HVAC .i htrn:,, heat) 143,800 $. 0.14 i 20,000 Subtotal $ 23.000 Labor Equipment and Analyltitals Labor No Add nal Cost 'Sri $ 23,000 me and Ana ticaIs Subtotal $ 23,000 ow do h dos [Estimated 1'" Year Operating O &M Costs Above Current Costs 144,000 0 ; 41.11OPOSED 36,O0O GALLON --r, m .BI.IPOI/ASH SETTLING TANK PF :P :13ED TRE= TMENT BUILDING - 11- i EW1Et1P-s rRc47RKhTPROCESS TO PIMOVE HAW WATER COLOR TO DECO* 31 PCU 4121‘72' ['LAMM tAx,T OLLEO PROCESS ec4LPW • EXrEJM4. i'SIIA TEO ISCOO GALLAS PRO=S WATER AICRWASN SE771.M0 MD RECYCLE TAUYX ▪ )32.N PMA'1 PAO FXPAM4,fY TO ACC:0 400A TE IIE1StRWES • ZE31151 SER.?CE DC7Eiv3106! TO usnzsE EtACKWSH ROWSm Off Y /Wile? SYSTEM FINISHE, RIO CITY C'ENEMIkt' .:.: DISTRIBUirON SYSTEM CITY WELL 2 WATER TREATMENT SYSTEM fl'PRThrEi.�ct:71 CITY OF KENAI KENn1, pl} -Sr.L 6-2-2010 SHEET. Treatment Plant Building Layout CHEMICAL UNIOADING SIOXINDART CONTAINN EMT TRANSFER PUMP ANALYTICAL IASTRUMENT BENCH PPCI METERING PUMPS PACII IUIt 1B' RAW WATER FROM WELL 2 POLYMER DRUM CRAG TANK CONTROL DESK PARKING EMERGENCY POLYMER f SHe METERING Ha SHOWEER PUMPS NYPDCilLb METERING PUM PS FIAW METER" INJECIDRS ANU STATE MIXER 1G° FILTERED WM tit --i .^4k4' ACCESS HATCH BACKWASH WASTE SETTUNG BASIN lBELOW1 FILTER VESSEL 8.1 FILTER VESSEL FILTER VESSEL #3 HICH SERACE PUMPS 5'x5' ACC HATCH B' H4CKWASH FRPROXIMATE LOCATION SUPPLY CF SETTLED SOUPS PUM DISCHARGE TO S ASH WATER POOSTER PUMPS SUPERNATANT RECYCLE PUMP r L LIMITS Cr CLEARNELL BACKUP GENERATOR 10" TO DISTRIEA 1DN SYSTEM Coagulation /Filtration, 20 CU Capital Cost: $5,510,000 Increase in Annual Operating Cost: $151,000 Residential water rate - based on flat -rate (non - metered or 5,000 gallons (metered) Commercial water rate - based on 50,000 gallons (metered) $0.4: 15% Commercial water rate- based on 1,200,000 gallons (metered) largest volume user Commercial water rate - based on 2" service for Office Building (non - metered)(est. 26,000 gallons) $66.50 $0.41 $87.00 $0.41 $2,095.95 $71.87 $0.41 $82.53 510.66 15% Coagulation /Filtration, 15 CU Capital Cost: $5,510,000 Increase in Annual Operating Cost: $644,000 Type /Class of Service Present Monthly Rate Increase in rate per 1,000 Gallons Estimated Future Monthly Rate Residential water rate - based on flat -rate (non - metered or 5,000 gallons (metered) $13.78 $1.76 $22.58 Estimated Monthly Increase Estimated Percentage Increase $8.80 64% Commercial water rate - based on 50,000 gallons (metered) $66.50 $1.76 $154.50 $88.00 132% Commercial water rate - based on 1,200,000 gallons (metered) largest volume user $1,596.00 $1.76 $3,727.95 $2,131.95 134% Commercial water rate - based on 2" service for Office Building (non- metered)(est. 26,000 gallons) $71.87 $L76 $117.63 $45.76 64% Coagulation /Filtration w/ pH Adjustment, 12 CU Capital Cost: $7,271,000 Increase in Annual Operating Cost: $526,921 Residential water rate- based on flat -rate (non - metered or 5,000 gallons (metered) Commercial water rate - based on 50,000 gallons (metered) Commercial water rate - based on 1,200,000 gallons (metered) largest' volume user Commercial water rate - based on 2" service for Office Building (non - metered) (e st. 26,000 gallons) 566.50 $138.50 572.00 10% $109.31 537.44 Comparison to Other Cities Water and Sewer Rates Residential Water Rates Based on Flat -Rate (non - metered) or 5,000 Gallons (metered Monthly Fees Anchorage Water Utility City of Homer City of Wasilia City of Seward Cityofsotdotna City of Palmer City of Kenai Customer Charge $ 10.33 5 25.00 $ - $ - $ $ 19.95 Usage Charge $ 28.73. $ 22.11 $ 34.15 $. 34.17 $ 18,90 $ 13.25 $ 13.78 FacOity Charge $ - 5 - $ 11,45 $ - $ $ $ Meter Charge $ - 5 14.70 5 - Total 5 39.06 $ 47.11 $ 45.60 $ 34.17 $ 18.90 $ 27.95 5 13.78 Anchorage Water Utility- Usage Charge i flat -rate City of homer- Usage charge Is based on 5,000 gallons at 50.00442 City of wasifa - Usage Charge based on 5,000 gallons at 56.83/1,000 gallons City of Seward - Usage Charge Is flat -rate City of Soldotna - Usage Charge is flat -rate City of Palmer - Customer Charge Is based on minimum 5,000 gallon charge COMMERCIAL WATER RATES (Metered) Monthly Fees Anchorage Water Utility City of Homer City of WasIlla City of Seward City of Soldotna City of Palmer City of Kenat Customer Charge $ 10.33 $ 25.00 $ 11.,45 $ 5,65 $ 19.95 Customer Charge, includes 5,000 gal. $ 13,25 Volume Rate per 1,000 Gallons $ 3.99 $ 11.40 $ 6.83 $ 4.29 $ 1.58 Meter Charge 5/8" $ 5.14 $ 10.15 Meter Charge 3/4" $ 5.14 $ 14.70 Meter Charge 1" $ 8.72 $ 26.00 Meter Charge 1 -1/2" $ 16.91. 5 57.70 Meter Charge 2" $ 27.12 $ 104.00 Meter Charge 3" $ 51.04 $ 234,00 Meter Charge 4" $ 85.33 $ 417.00 Meter Charge 6" $ 170.18 $ 936.00 Meter Charge 8" $ 272.37 $ 1,665.00 > 50,000 gallons, per 1,000 gallons $ 3.43 >550,000 gallons, per 1,000 gallons 5 2.58 >1,550,000 gallons, per 1,000 gallons $ 2.15 >3,550,000 gallons, per 1,000 gallons $ 0.57 > 5,000 gallons, per 1,000 gallons $ 2.65 > 15,000 gallons, per 1,000 gallons $ 1.33 Parameter Coagulation /Filtration Won Ekebattge Note Basis of Design Three (3) Horizontal Pressure Filters - 8' -0' diameter x 12' -0' length, 2 -cell carbon steel p 520-gpm capacii at gpm/sft. horizontal pressure filters Each unit with a 520- capacity 8P Three (3) Ion Exchange Vessels - 10' -6" diameter by 9'0" straight side height. Sizes of both systems are based on future peak demand capacity of 2.0 MGD Manuta ctm'ers Layne Water Infrastructure, Tetra (Severn Trent), WesTech, Fil -Trek Corp., National Filter Media Cor p, Zemarc Co., Tonka Equipment Co. Tonka Equipment Co., other manufacturers available but requires more pilot testing for the IX resins. The IX system has a proprietary resin that may preclude competitive bids. Coag /filtration systems use conventional sand. Finished water color 20 platinum - cobalt units (PCU) 20 PCU Otherimpacts to treated drinking wafer Coagulant used is aluminum - based. Slight (<0.01 mg /) aluminum would enter water during pH in treated water changes over time with IX treatment. Requires acid to stabilize pH normal operation. Aluminum is recommended to be 0.05- 0.2 mg /L for color aesthetic so that finished water does not dissolve household copper plumbing. issues (aluminum is slightly white in clear water). Neither system would impart a taste or odor to the water. Major Equipment Cost $803,000 $693,000 + undetermined adder for additional steel piping Filters or IX Vessels only Major Equipment Footprint (sft) 350. Also building height increases to >25 ft (interior to ceiling) due to salt pipe at top 288 of Brine Maker. Additional Analysis required for sizing. Footprint of IX system includes 42 ton capacity Brineer brine tank Chemical Feed System Description Coagulant Polyaluminum chloride solution metered directly from tote Not used Polyaluminum chloride is common water treatment chemical and is specifically approved by the USEPA for use in drinking water. Food -grade table salt Not used 50 tons /month dry salt blown into silo from delivery truck Anticipated salt usage provided by IX vendor Caustic soda Not needed Solution metered directly from 1,200 gal tank with transfer pump for delivery by truck. Secondary storage containment, alarms, and spill containment required Approx tank sizes for estimated 2038 chemical use Acid Not needed Solution metered directly from 600 gal tank with transfer pump for delivery by truck, Secondary storage containment, alarms, and spill containment required Approx tank sizes for estimated 2038 chemical use Chemical Usage - 7.0 MGD Production (First Vear) 2.0 MGD Production (2038 Peak Demand) 1.0 MGD Production (First Year) 2.0 MG0 Production (2038 Peak Demand) Coagulant 7.4 gal /day (1 tote /month) 14.8 gal /day (2 totes /month) N.A. N.A. Based on delivery of Neat PACT Solution. Volume issmall enough to avoid most haz. materials storage handling requirements. Food -grade table salt Not needed Not needed 2,0001bs /day (25 tons /month) 4,000 ibs /day (50 tons /month) Anticipated salt usage provided by IX vendor. Large use of salt would most likely require add'i dust control measures Caustic soda Not needed Not needed 17,6 gallon /day (528 gal /month) 35.2 gal /day (1056 gallons /month) Basedon25% Neat Caustic Solution. Use requires operator training in haz. Materials handlingtraining. Add'f design features required for worker safety. Acid Not needed Not needed 9.0 gal /day (269 gal /month) 18.0 gal /day (538 gal /month) Based on Desktop model for titration of 98% Neat H2SO4 Solution. Use requires operator training In haz. materials handling training. Add'I design features required for worker safety Est. Annual O &M Chemical Cost $91,000 - $128,000 $182,000 - $256,000 $112,000 $224,000 Not including Cl2 which is used equally for both systems. Unit costs based on vendor telephone quotations. Storage Requirements for 1 month of chemical (footprint in sft) 1.0 MGD Production (First Year) 2.0 MGD Production (2038 Peak Demand) 1.0 MGD Production (First Year) 2.0 MGD Production (2038 Peak Demand) Coagulant 16 sft (1 - 300 gal tote) 32 sft (2- 300 gal tote) N.A, N.A. Tote storage In an open area Food -grade table salt Not needed Not needed 25 on or 8,500 gallons 50 tons (16,911 gallons) Required dedicated salt silo with dust control Caustic soda Not needed Not needed 600 gal tank 1,200 gal tank Requires stroage in chemical safety tank or dedicated chemical storage oom Acid Not needed Not needed 300 gal tank 600 gal tank Requires stroage in chemical safety tank or dedicated chemical storage room. Can not be stored next to the caustic soda Building Footprint 3,100 sft 3,200 at least - additional layout required Electrical /HVAC: Est, Annual O &M Costs $23,000 $23,000 $36,000 $36,000 0ased on footprint and height requirement increases for IX, building volume Increased estimated heating expenses by $13,000 Waste Volume 450,000 gal month 900,000 gat /month 327,000 gal /month 654,000 gal /month IX system waste production supplied by IX System vendor Waste Characteristic Aluminum sludge, discharged direct to sewer High p13 (2% NaOH), corrosive brine lil ely constituting hazardous waste that must be neutralized prior to removal from site Will require 3 (1 MGD) to 6 (2 MGD) round -trip tanker truck pickups per day for waste disposal. Most likely require another FTE soley for waste transport all day long. Brine waste characteristics supplied by IX system vendor. Tanker truck size assumed to be 4000 gallons- purchase of tanker truck will constitute additional capital expenditure. Waste Tank Volume Exterior 36,000 gal tank 65,000 gallon exterior tank for waste neutralization Based on 2 8W or regeneration cycles plus additional 20%