HomeMy WebLinkAboutWQR_2010_Report_FINAL.pdfW h e r e D o e s R e n t o n ’s W a t e r C o m e F r o m ? Where Does Renton’s Water Come From?
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W a n t T o G e t I n v o l v e d ?Want To Get Involved?T T he City of Renton welcomes your interest in its water system. The Renton City Council is the city’s decision-making body. The Council meets on the fi rst four Mondays of each month at 7:00 p.m. in the Council Chambers on the seventh fl oor of City Hall. Call the City Clerk’s o ffi ce at 425-430-6510 for mee ti ng or agenda informa ti on or check the City Council calendar at the City of Renton’s website, rentonwa.gov/government. D D uring 2009, Renton obtained its drinking water from three sources: fi ve downtown wells, located in Liberty and Cedar River Parks, which draw water from the Cedar Valley Aquifer; Springbrook Springs, a small springs located in south Renton; and from the Maplewood well fi eld, located at the Maplewood Golf Course. In 2009, our combined water sources pro-duced 2.77 billion gallons of water.In 2009 the downtown wells supplied 67% of the city’s water, Springbrook Springs produced 18%, and the Maplewood wells contributed 15%. The Maplewood wells are backup wells and started produc ti on in August, 2007.The water pumped from the downtown wells and Springbrook Springs sources is very clean and needs minimal treatment. Chlorine is added to destroy bacteria and viruses in case they are present. Chlorine further protects water on its way to customers. Because our water is naturally so ft , sodium hydroxide is added to stop corrosion of plumbing. Fluoride is also added to prevent tooth decay. In the areas of Renton Hill, Talbot Hill, and West Hill, ortho polyphosphates are added to the water to reduce corrosion of the iron water pipes found in these neighborhoods.Water from the Maplewood wells is also very clean, but because of its natural mineral content and pH, it must fi rst be treated before it can be co-mingled with the water from the other sources. This treatment process consists of the removal of manganese, hydrogen sul fi de, and ammonia from the raw water. Chlorine is added for secondary disinfec ti on and fl uoride to prevent tooth decay.
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(1
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8
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2
6
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7
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1
)
.
I I t’s summer ti me and the temperature is rising—and so is Renton’s water consump ti on. Watering lawns and gardens, taking extra showers, fi lling the backyard pool, playing in the sprinklers, washing extra beach towels and clothes, keeping the car sparkling clean, hosing the driveway and pa ti o: these kinds of ac ti vi ti es are what cause Renton’s water consump ti on to nearly double in the summer. This increased summer water consump ti on is called peak seasonal demand. There are also ti me-of-day peaks . These occur when most of the City is ge tti ng up or going to bed and brushing their teeth, taking a shower, or star ti ng the dishwasher and washing machine a ft er dinner. These types of water use ac ti vi ti es cause usage peaks between 6:00 a.m. and 9:00 a.m . and again between 6:00 p.m. and 9:00 p.m. These daily peaks are normal and planned for by the water u ti lity. However, if everyone starts watering their lawns and gardens, fi lling the kiddie pool and washing the car during these same ti me periods, the city’s water infrastructure of pipes, pumps and reservoirs become strained. Peak demand is the greatest driver of costly water system expansion and,in turn, increased water rates. W e c a n b e a t b o t h o f t h e s e p e a k s ! We can beat both of these peaks! Reducing the ti me-of-day peak demand is easy: simply shi ft your water consump ti on to outside the peak use hours of 6:00 a.m. to 9:00 a.m. and 6:00 p.m. to 9:00 p.m . If you have an irriga ti on system or ti med sprinklers, set them to run a ft er 9:00 p.m. • and before 6:00 a.m. – these are also the ti mes when evapora ti on and wind are lowest. Start your clothes washer just before turning in for the night. • Set your dishwasher to delay start a ft er 9:00 p.m • .These may seem like small e ff orts—but when mul ti plied thousands of ti mes over, it makes a big di ff erence! Reducing seasonal peak demands can also reduce your work! Take your car to a drive-thru carwash that recycles the water instead of washing it in the driveway.• Embrace the beauty of a golden lawn— let it go dormant; water your lawn just once a month, and it will bounce back in the • fall - plus you will save a lot of ti me, work and money.Make your garden a beau ti ful haven of relaxa ti on by following the 5 Steps to Natural Yard Care (your.kingcounty.gov/solid-• waste/naturalyardcare/index.asp)Keep a pitcher of water in the fridge—you won’t have to run the tap to get cold water.• Sweep driveways and pa ti os instead of hosing them down—it’s a good upper body workout!• Get crea ti ve—see how much water you can save while helping to make Renton a wonderful place to live now and far into the future!Web Resources Irriga ti on iwms.org/sea tt le_area.asp • epa.gov/watersense/pp/irrprof.htm • Plant Selec ti on greatplantpicks.org • gardening.wsu.edu/text/nwna ti ve.htm • Natural Yard Care gardenhotline.org • rodsgarden.50megs.com/waterwise.• htm epa.gov/epaoswer/non-hw/green/• owners.htm Ways to Save Indoors wateruseitwisely.com/100-ways-to-• conserve/indoor ti ps/index kingcounty.gov/environment/waste-• water/WaterConserva ti on/Tips.aspx h2ouse.org • City of Renton rentonwa.gov •
N o t e s :
No
t
e
s
:
1.
F
l
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/
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.
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a
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a
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fl uoride
le
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p
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ti c range to
pr
e
v
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o
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c
a
y
(
0
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ti z
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s
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o
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fl uoride to the drinking water in 1985.
2.
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ti o
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h
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ti ng radon in drinking water and
re
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A
fi nal rule is expected soon.
Ra
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ti al for radon entering the home through soil.
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4.
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ti on found no addi ti onal coliform bacteria
in
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5.
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(
3
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R e b a t e s !Rebates!S S ave Water and energy! Rebates of $50, $75 and $100 are available with the purchase of quali fi ed high e ffi ciency WashWise washing machines.For a limited ti me, Cash for Appliances Washington is o ff ering an addi ti onal $100 re-bate on selected models. That’s up to $200 in rebates, plus many retailers and manufacturers are o ff ering incen ti ves as well. Visit cashforapplianceswa.com for more details.F r e q u e n t l y A s k e d Q u e s t i o n Frequently Asked Question Is Renton’s water so ft or hard?Renton’s water falls within the so ft range with about 3.0 grains of hardness per gallon. A water’s hardness is dependent upon the levels of two naturally occurring soluble minerals - calcium and magnesium. This means that dishwashing and clothes washing require rela ti vely less soap than in other areas where the water is hard.
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