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Every jurisdiction sets standards for when water is safe to drink. The numbers vary based on the safety margin the regulators and used feel comfort in using. This allows some "Ooops!" event in the water supply without harming anyone.
The base numbers for contaminants are based on "No observed effects levels" identified by testing various concentration's impacts on animals and extrapolating these impacts to humans. Sometimes the levels are based on taste, odour or appearance not health impacts.
What else can I help you with?
How many gallons of water equals four inches of rain on an acre?
One inch of rainfall on one acre is equivalent to 27,154 gallons of water. Therefore, four inches of rain on an acre would be equal to 108,616 gallons of water.
How many gallons of water lay on a acre of land one inch deep?
There are 27,154 gallons of water in one acre of land that is one inch deep.
How many liters of water go over Niagara falls each year?
About 6 million cubic feet of water flow over Niagara Falls every minute, which adds up to over 85,000 cubic feet per second. This totals to approximately 3,160 tons of water flowing over the falls every second. Over the course of a year, this amounts to roughly 85,000,000,000 liters of water.
How many gallons of water in an acre inch?
An international acre is 4840 square yards or 6,212,640 square inches.An imperial gallon is 277.14 cubic inches.6,212,640 divided by 277.14 = 22,610 gallons approximately.A US liquid gallon is 231 cu inches hence 1 acre inch = 27,154.3 US gallons (rounded)
How much water does the average American use per day?
Municipal planners assume each individual (regardless of whether or not it is a family) uses about 150 gallons of water a day. They also assume that about 100 gallons of that enters the sewer system in that day.Each person uses about 80-100 gallons of water per day. So it depends how many people in the family.Each person uses 80-100 gallons of water per day.
How many Gallons Of water is polluted in a day?
780,822
How many people in US do not have access to safe drinking water?
there is none they have polluted water every wear but in some countries they have a higher risk of polluted water
How many gallons of water are wasted every year?
5,110,000 Gallons a year!!!
How many gallons of water does the biggest waterfall drop every second?
150,000 gallons
How many gallons of water in a 24ft round pool?
3384 gallons for every foot deep it is.
How many gallons of water will 100 feet of six inch pipe hold?
About 235 gallons of water.
How many gallons of water is in a pool 18 ft by 32 ft?
359 gallons for every inch the water is deep.
How many gallons of water in a 12000 square foot pool?
7,480.52 gallons for every inch of depth
How many Gallons of water fall over Niagara every second?
150 000 American gallons flow over every second.
How many gallons of water can be produced for every gallon of potable water produced by ROWPU's?
2
How many gallons of water in 15 feet of 10 inch radius pipe?
61.2 gallons for every 15 feet.
How many gallons of water does it take to fill a 2ft tall by 6ft wide tank?
89.8 gallons for every foot of depth.
