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Home My WebLink About08/25/2016 - Meeting Materials Carly Castle WASAT( H UPDATE Public Utilities Advisory Commission August 25, 2016 MOUNTAIN ACCORD Environmental Dashboard Transportation Studies Cottonwood Canyons 1-80/Parley's Canyon Alternatives Analysis Central Wasatch National Conservation and Recreation Area Act Central Wasatch Commission CENTRAL WASATCH COMMISSION (CWC) Serve as an entity that can receive funding, administer contracts, and hire staff to advance elements of the Mountain Accord process. Signatories: Salt Lake City, Salt Lake County, Sandy City, and Cottonwood Heights Organization: • CWC Board • Stakeholders Council MOUNTAIN PLANNING DISTRICT What is the Mountain Planning District? An area of the Central Wasatch Mountains designated by Salt Lake County where jurisdiction for land use planning is vested in a separate Planning Commission. Mountain Resort Zone (MRZ) • Transfer of Development Rights (TDRs) MRZ Boundaries Wastewater • 01 Cap N O N W ltal Program Update AUGUST 2016 PUBLIC UTILITIES ADVISORY COMMITTEE TOM WARD, PE Project DeliveryTeam 01 N O Engineering Support W Jason Brown, Derek Velarde, Giles Demke, Engineering team Hiring staff (Engineers, Anita Graves/Construction Manager) Water Reclamation Facility PreDesign and Master Plan (Waterworks Engineers, AECOM) Technical Advisory Team: James Barnard, PhD (Black & Veatch); David Stensel, PhD (University of Washington); Glenn Daigger PhD (One Water Solutions); Phil Heck, PhD (Central Valley WRF) Program Manager Support Engineering capacity increase, Pre-Design, Value Engineering, Program delivery tools, construction standards & Quality Control Wastewater Master Plan Capital Improvement Projects FYI 6/17 Budget Sewer Collection System Upgrades, $23.8M Orange Street Sewer Rehabilitation Gladiola Street Sewer Rehabilitation 5t" South Sewer Pump Station Bypass Redwood Road to Jordan River 1800 North 66-inch interceptor rehab Other Sewer Lines Replacement (700 mile sewer Asset Management Program: inspection, cleaning, rehab) i - PRISON ! Iy • • • i SITE 61-1 7, i yf - i i i • i i i - i 51-3 ! • � • �� •i S1.2 _ .�• 5,,.,,� "�"�i HAROLD GATTY i � • • � • �� , • i INTERNATIONAL i � ! A1rror'FIl � • � � • • 1-80 b 000 10 000 Feet •............ ......LLI i i `n i W i Z M F ' C; $8.92 M is not budgeted in Syr plan,but triggered by Prison Relocation. - "Sewer System pipe sizes are based on assumed projected flows and minimum pipe slopes. 700 S 181 MP-12A&B � "'Prepared by WaterWorks Engineers for Salt Lake City Department of Public Utilities MP•12D Project No.525002524 2/11/16 2016/ 17 Budgeted Master Plan Capital Improvement Projects Water Reclamation Plant, $37.5M $1 .8M Nutrient Master Plan & Pre-Design $29.6M Headwork's Screening Building and Odor Control $4.7M Trickling Filters/Sediment Building h♦ BLOWER MIXED LIQUOR • • • BUILDING SPLITTER SECONDARY •• CLARIFIERS BNR • • • • REACTORS UV DISINFECTION ♦ • • ��.r FACILITY ♦ • • • • _ EXISTING CHLORINE • • • CONTACT •' BASINS EXISTING ' SLUDGE RAS PUMP STATION • • • •• • • DRYING BEDS • • EXISTING CHEMICAL [ FILTER COMPLEX TRICKLING FILTER STORAGE LEGEND (PLASTIC MEDIA) AND FEED •• • • - PRIMARY Demolition ® EXISTING PRIMARY CLARIFIERS 42 mgd Capacity TRICKLING FILTER EFFLUENT PUMP PUMP STATION STATION • • 56 mgd Capacity O EXISTING ., • •• 70 mgd Capacity O TRICKLING FILTER - •-1—., - Reuse Quality Effluent/ O (ROCK MEDIA) • Total Phosphorus<0.1 mgll L SOLIDS • • DEWATERING _ rr r •r EXISTING • _ I � DIGESTERS e 0 00 200 400 t�• • • • • •• SCALE - SIDESTREAM TREATMENT WATERWORKS E N G I N E E R S Next Steps Ongoing project delivery Sewer Collection Projects 01 0 N Prison services and NW Quadrant W storm drain master plan, Great Salt Lake floodplain update, complete green streets design, water/sewer predesign Water Reclamation Facility upgrade Keep existing plant running successful 5-1 Oyrs (Asset Management and Cityworks work order system update) Design, build and train staff for new Facility Program Manager mobilization Ongoing Public and Stakeholder Engagement City O&M Staff, Stakeholders, Neighbors, General Public Funding Cash flow management, bonding, rate study update Utah Lake, Jordan River and Canals mful Al al Bloom t- RIF `1► PUAC: August 25th, 2016 Jesse Stewart: SLCDPU Deputy Director - W_ Algae & Cyanobacteria Natural component of the aquatic food chain and are typically not harmful to people ALGAE o Common in fresh and salt water o Photosynthetic microorganisms o Single-celled to complex multi-cellular forms CYANOBACTERIA (blue-green algae) o Common in fresh and salt water o Photosynthetic single celled organism similar to bacteria o Most live with other algae and microscopic animals in floating assemblages known as plankton o Some may produce toxins (hepato- and neurotoxins) a [ looms and Harmful Algal Bloor-os ( HAB) o Summer months with the right combination of: ■ Nutrients: nitrogen and phosphorus* point sources and nonpoint sources When the concentrations of nitrogen and phosphorus increase in a water body, the right combination ■ Temperature ■ sunlight ■ Shallow, low flow, stagnant water o Nationwide examples ■ Florida, Toledo Ohio Harniful algal Bloom ( HAB ) o Cyanobacteria may produce cyanotoxins o May pose health risks to humans and animals o Toxins released when cell dies or is ingested ■ May remain for some time after bloom dissipates o Ingestion of cyanotoxins by pets or livestock o Treatment, on-site treatment is difficult ■ Releases or concentrates toxins Cyanobacteria and their toxins (cyanotoxins) • Liver, nerve, or skin toxins • Selectively produced by many genera but not very predictable • Widely distributed but not often at acutely toxic levels • Analyses are available for some but not all of these toxins 64 t =? � •y Y •'✓.• F• Y _ /�• I {per, Dolichospermum Microcystis Cylindrospermopsis Nodularia Aphanizomenon (Anaboen7o� -Microcystin (liver) -Cylindrospermopsins - Nodularin (liver) -Anatoxin-a (nerve) -Microcystins (liver) -Toxin is most (liver) - Found in brackish -Cylindrospermopsins -Anatoxin-a/a(s) common and easily -Saxitoxins (nerve) water including bays (liver) (nerve) measured -Benthic/epiphytic rather of Great Salt Lake -Saxitoxins (nerve) -Saxitoxins (nerve) -160 congeners than planktonic y=: 1 1 Types of Analysis Species Identification and cyanobacteria cell count concentrations — Rushforth Phycology • 24 to 48 hour turn around time • Cyanotoxin pre-screening test strips — • Day of sampling • Limited to c lindros ermo sins, microcystins and anatoxin-a (not saxitoxins) • Cyanotoxin analysis — Greenwater Lab 0 48 to 96 hour turn around time 1 ' UDEQ/UDOH Guidelines for HABs Toxin Producing Blue-green algae Cell Health Risks Action Recommended Relative Probability of Acute Health Risk Density(cells mL) <20,000 Negligible None Very Low Issue caution advisory; Short-term effe c t s e.«. 20,000-100,000 skin irritation, Post CAUTION sign; Low to Moderate gastrointestinal illness Weekly sampling recommended Issue warning advisory; 100,000— 10,000,00 or As above for low risk, post WARNING sign: reports of animal and potential for Moderate to High illnesses or death long-term illness W eek-ly sampling recommended 10.000.000 Issue DanL-er Ads isoi--: or ` Post DAGGER si1Tn: large scum mat layer As above for moderate ` or risk, and potential for Weekly sampling recommended Very High reports of human acute poisoning illness; Consider Closure Symptoms Human Symptoms Pet and Animal Symptoms - *Weakness •Vomitin *Fatigue -Diarrhea *Excessive saliva production or drooling -Stomach pain -Weakness *Staggering -Headache *Difficulty breathing -Tingling sensation *Vomiting -Muscle cramps *Convulsions -Dizziness • roub breathin n • ash • Hives Blisters or sores. • Nose irritatio • Sore throat • Coughing or wheezing • Asthma-like symptoms ' • Respiratory symptoms (including difficult, rapid, or shallow breathing) h Lal�.,-,e HAS 2016 mom Multiplier effects of temperature & nutrients Decreased water levels Increased (through water demand and temperature precip changes) I� g � HABs Increased Increased internal growing nutrient season loading Increased external nutrient loading Ito 1;10114L M Mk • Timeline N YIY1 July 14 July 15 � Ju AAL • Bloom . DWQ Utah Lake • Aerial • Jordan • Several Utah reported to DWQ collected closure issued by survey showed River samples municipalities County Jordan additional Utah County algal scum moving >700,000 cells/mL shut down River closure • Large algal phytoplankton Health into Jordan River Aphanizomenon secondary water issued mats observed and toxin samples Department and supply between Provo for analysis Department of Algae Salt Lake Bay and Utah Health scums County Health . Guidance Lake State Park Large redeveloping in Department posts issued for visible mats UDAF public access "Warning"signs residential • First observed on July advisory issued locations irrigation samples collected 13 had been blown to Samples Utah southside shores collected at public Poison Control access locations, reports illnesses • Aphanizom Utah Lake Outlet related to HAB enon samples > and Jordan exposure 10,000,000 cells Narrows per mL were confirmed Aerial survey July 2, 2016 July 11, 2016 T DO Importance ol Uta. h Lake o Recreation o Irrigation Water "' - Iii o For Salt Lake City ■ Exchange Agreements y s 'f? , t _ . I : a � t�f v^: 3 i n�H SALT LAKE VALLEY CANALS DNR JORDAN RIVER D�Urn w�zr cicu.i v.r<rr aw.a e.�e uar.w�a,rave Mel Cyanobacteria cell } Cyanobacteria cell density(celislmL) (4 o-��{ _^' density(cellsfmL) July 14-16 2016 �' "`{ti July 18-20 2016 1:•`-^ 20,000 or less ! 1_ 20.000 or less 0 20.000- 100.000 20.000- 100.000 �-• ® 100.000- 1.00o.000 O: O�-. 100.000- 1,000.000 --- •_ _. 1.000.000 - 10.000.000 --- 1,000,000 10,000 000 10.000,000+ �' 10,000.000+ Cyanobacteria cell _ ,].—V density(cellslml.) Utah Lake Outlet "" Utah Lake Outlet July 26 2016 `„, . 20,000 or less O 0 20.000 - 100.000 t ' O l _ - • 100.000 - 1.000.000 Toxin non-detect or 1,000,000 - 10.000.000 tah Lake State Park • Utah lake State Park "•'• Prow Bay Provo'BaY •10,000.000+ Uncoln Beach .. _ UncoY+Beach .. • ah lake Outlet a... r0 �0 ,e w Fwu sr..a ..r.h p•..�,.w. 0.�. +. 10 IO ro w jwuw•.r.a..r.�y pr.� r. \ .r y.1 w`.�+Mr r Ilrrw.e w.+•.w�...wr.xdYr. J.Uncolm87each/ O way...below recreational m.r......as ..c.-... r Utah Lake State Parts Prow Bay S risk levels 10 ........p wanrws •r4as•u..w.,•,•,..rA.�� Response to 2016 HAB a Multi-Agency response: ■ DWQ ■ County and State Health Departments ■ Poison Control ■ Department of Agriculture ■ Numerous Municipalities and Districts ■ Canal Companies and Irrigators a weekly conference calls with > 100-150 participants Utah Poison Control Center 636 Reported Cases (As of August 1) Human Exposure 81% Recreated in or exposed to (504) Utah Lake Water Animal Exposure 4% 14 dogs (8 UT Co., 5 SL Co., 1 (27) WY) Information only 14% (86) "`tarp 31% of cases are symptomatic Symptoms Reported: - GI: diarrhea, nausea, vomiting, and abdominal pain v � ' Skin: rash and irritation p Neuro: headache dizziness drowsiness 7 �- Ocular- irritation Response to 2016 HAB a Closure of Utah Lake a Caution and Warning on Lake rivers and Canals a Irrigation restrictions a Alternate water sources as possible a Routine monitoring, sampling and analysis onse to 2016 HAB Hi Caution and Warning a Routine monitoring, sampling and analysis: ■ first samples collected on July 16th weekly since Hi Alternate water sources (culinary and irrigation), ■ Wells ■ Big Cottonwood Creek ■ Little Cottonwood Creek ■ Deer Creek: stored water Questions A Summary of Cyanotoxiin Treatment Processes and Their Relative Effectiveness Treatment Process Relative Effectiveness Intracellular Cyanotoxins Removal (Intact Cells) Avoid pre-oxidation because often lyses cyanobacteria cells releasing the cyanotoxin to the water column. If oxidation Pretreatment oxidation is required to meet other treatment objectives, consider using lower doses of an oxidant less likely to lyse cells (potassium permanganate). If oxidation at higher doses must be used, sufficiently high doses should be used to not only lyse cells but also destroy total toxins present(see extracellular cyanotoxin removal). Coagulation/ Effective for the removal of intracellular toxins when cells accumulated in sludge are isolated from the plant and the Sedimentation/Filtration sludge is not returned to the supply after separation. Membranes Study data is scarce; it is assumed that membranes would be effective for removal of intracellular cyanotoxins. Flotation Flotation processes, such as Dissolved Air Flotation (DAF), are effective for removal of intracellular cyanotoxins since many of the toxin-forming cyanobacteria are buoyant. Oxidation Avoid because often lyses cyanobacteria cells releasing the cyanotoxin to the supply. Extracellular Cyanotoxins Removal Depends on the material, membrane pore size, and water quality. Nanofiltration and ultrafiltration are likely effective Membranes in removing extracellular microcystin. Reverse osmosis filtration would likely only be applicable for the removal of some extracellular cyanotoxins like cylindrospermopsin. Cell lysis is highly likely. Further research is required to characterize performance. Potassium Permanganate Effective for oxidizing microcystins and anatoxins. Ozone Very effective for oxidizing extracellular microcystin, anatoxin-a and cylindrospermopsin. Chloramines Not effective. Chlorine Dioxide Not effective with doses used in drinking water treatment. Chlorination Effective for oxidizing extracellular cyanotoxins as long as the pH is below 8; ineffective for anatoxin-a. UV Radiation Effective for degrading microcystin and cylindrospermopsin but at impractically high doses. PAC: Most types are generally effective for removal of microcystin, anatoxin-a and cylindrospermopsin, especially 1 Activated Carbon wood-based activated carbon. GAC: Effective for microcystin but less effective for anatoxin-a and cylindrospermopsins. Source: U.S. EPA, Office of Water: Cyanobacteria and Cyanotoxins: Information for Drinking Water Systems, September, 2014. `� "" PUAC August 25, 2016 STORMWATER WATER SEWER STREET LIGHTING Base + Enhanced DUNE 307 2016 SALT LAKE CITY PUBLIC UTILITIES FINANCIAL PERFORMANCE AG E N QA/ forp ixpm x Financial Dash Board How are we ending the year, x Highlights pre-audit report x Water usage Information/Pending items for future review: PUAC to assist in reviewing and recommending changes to fees. Rate Studies Water rate and sewer rate increase was delayed 10 days in July as new rates were not published. Credits back to customers for those 10 days. Bond Issues scheduled for Sewer and Street Lighting this fiscal year. CCF= 748 gallons 1 BILLING UNIT Acre Foot of water = 325,900 gallons Financial Dash Board 435 CCF 1 Acre Foot CCF =100 cubic Feet June 30, 2016 ❑ Sales Charges all Funds = 98.6% of budget charges for the year ❑ Total Customer Charges for fiscal year 2016 $109 million ❑ New July rates were not effective until July11 , 201 ..Credited back to customers estimated at approximately $150,000. New 3 tier enhanced lighting charges affected. ❑ Water Sales ended at 99% of budget ❑ Abatements: service breaks and uncollectable's $164k or <$9,682> less than fiscal 2015 ❑ operations Expenses: "/o of Budget year end 11Uui IL uuiuvv budget all fu, Ids $9,139,000 1 . Water Fund 88.6% 2. Sewer Fund 88.3% 3. Storm Water Fund 92.2% 4. Street Lighting Fund 77.5% ❑ Capital Improvements spending vs. Budget Accruals are pending for capital and these Ws will increase. 1 . Water Fund @ 59% 2. Sewer Fund @ 45% 3. Storm Water Fund @ 35% 4. Street Lighting Fund @ 52% ❑ Bond Debt Service ratio.....required 1.25 times ■ Ratio of net revenues divided by the debt service costs ■ Current ratio for all funds is 4.62 which is a very strong ratio and keeps bond ratings high HIGHLIGHTS 1. Water Sewer Storm Street Lighting Totals Net revenues $ 69,568,236 $ 25,977,861 $ 8,357,308 $ 3,353,042 $ 107,256,447 Net income Excluding Deprec. $ 18,121,287 $ 17,510,318 $ 3,229,349 $ 1,604,678 $ 40,465,632 Franchise Tax(City payment) 6%on all charges $ 3,550,582 Capital Assets/debt service $ 20,493,780 $ 13,735,859 $ 4,455,870 $ 613,163 $ 39,298,672 Cash and short-term investments $ 41,065,109 $ 26,816,730 $ 6,530,721 $ 2,357,537 $ 76,770,097 Cash Change from June 2015 ($5,537,930) ($1,761,564) ($1,032,410) $700,433 ($7,631,471) Delinquent Receivables>120 days$7.5 million $27,736 0.37% Water Delivered 2016 28,670 Million Gallons(MG) 2015 27,853 Million Gallons(MG) plus 817 mg Daily Water Use Salt Lake City Department of Public Utilities Service Area a� E o Use_016 Average 2013 to 2015 —Use 2000 210.00 200.00 190.00 Currently higher 5761 acre feet 180.00 (as of Aug 17,2016) or 1.8 billion gallons 1 or 2.5 million units of water since 160.00 0.00 Jan. 1, 2016 above last year use. 150.00 1,637 acre feet higher than 3 year 140.00 average. t 130.00 120.00 110.00 100.00 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 Jan Feb March April May June July August Sept Oct Nov Dec