Enter your zip code, or a nearby zipcode, and the website will give you the average daily ET value for each month of the year. That’s a total of 1 trillion gallons across the nation. The average American family uses 320 gallons of water per day, about 30 percent of which is devoted to outdoor uses. Other livestock water uses include cooling of facilities for the animals and products, dairy sanitation and wash down of facilities, animal waste-... Aquaculture water use is water associated with raising organisms that live in water—such as finfish and shellfish—for food, restoration, conservation, or sport. This website is intended for use by residents of North America only. A 1500 square foot grass lawn in zip code 85232 (Central Arizona) Irrigation of golf courses, parks, nurseries, turf farms, cemeteries, and other self-supplied landscape-watering uses also are included in USGS irrigation estimates. California’s recent multi-year extreme drought was hard on the state’s agricultural industry. Indoor efficiencies. Irrigation water use includes water that is applied by an irrigation system to sustain plant growth in agricultural and horticultural practices. For most cases, about 60% of water used inside the home would be considered graywater. Irrigation withdrawals for 2015 are 21 percent less than 1980, when withdrawals peaked at 150,000 Mgal/d. Eto: Get this from http://www.rainmaster.com/historicET.aspx . A reasonably accurate estimate of the amount of irrigation water needed can be made using Eto data for your actual zip code. Replacing a standard clock timer with a WaterSense labeled irrigation controller can reduce an average home's irrigation water use by 15 percent and can save an average home nearly 7,600 gallons of water annually. The weighted average daily outdoor use for the group was190 gphd. Irrigated acres are reported by three types of irrigation methods: sprinkler, microirrigation, and surface (flood) systems. The majority of total U.S. irrigation withdrawals (81 percent) and irrigated acres (74 percent) were in the 17 conterminous Western States (west of solid line in map above). Documentation of methods and inventory of irrigation data collected for the 2000 and 2005 U.S. Geological Survey Estimated use of water in the United States, comparison of USGS-compiled irrigation data to other sources, and recommendations for future compilations; 2011; SIR; 2011-5166; Dickens, Jade M.; Forbes, Brandon T.; Cobean, Dylan S.; Tadayon, Saeid, Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, Groundwater, Aquifers, Wells, and Springs, Water Availability and Use Science Program, 2000 and later: Some States have estimates for subcategories of Crop Irrigation and Golf Course Irrigation. (Eto x PF x SF x 0.62 ) / IE  =  Gallons of Water per day. For example, if you want your sprinklers 45 feet apart you will probably need 65 PSI of water pressure. About 63,500 thousand acres were irrigated in 2015, 34,700 thousand acres (55 percent) with sprinkler systems, 23,300 thousand acres with surface (flood), and 5,490 thousand acres with microirrigation systems. But most people in the USA want a value in gallons, which requires you to provide a little more information about your yard. 1000mL equals one litre and 1000L = one cubic metre. If you find you need 0.20 inches of irrigation, then 0.20 inches of rainfall would provide the required water. I suggest using 0.75 as the value for this. Public supply (52 percent) and agricultural irrigation (31 percent) used the largest volumes of fresh ground water in 2005, followed by commercial-industrial-mining self-supplied (8.5 percent), domestic self-supplied (4 percent), recreational irrigation (4 percent), and power generation (0.5 percent) . This website uses both first-party and third-party cookies. “Our objective is by 2020 to have safely returned to nature an amount of water equal to what we use in our production,” their website states. In Africa, through, the vast majority (85%) of the water used is used for agricultural purposes. Remember this calculation just gives you an estimated value. Aquaculture production occurs under controlled feeding, sanitation, and harvesting procedures primarily in ponds, flowthrough raceways, and, to a lesser extent, cages, net pens, and closed-recirculation tanks. So for a 30 foot x 50 foot lawn you would use 1500. Conventional irrigation is only about 60% effective due to runoff, drift, and evaporation. If you have a large yard and want to put the sprinklers farther than 30 feet apart you will need more pressure. The average family can waste 180 gallons per week, or 9,400 gallons of water annually, from household leaks. Each year, the average American home wastes 11,000 gallons of water from running toilets, dripping faucets, and other leaks. Recirculating cooling refers to cooling systems in which... Industrial withdrawals provide water for such purposes as fabricating, processing, washing, diluting, cooling, or transporting a product; incorporating water into a product; or for sanitation needs within the manufacturing facility. With drip irrigation, this is simple. I use one of their Eagle model controllers on my own home. The national average application rate for 2015 was 2.09 acre-feet per acre. ground systems on average used 35 percent more water than homes without installed irrigation systems. Therefore, estimated annual water use without irrigation is equal to: 55,000 gallons per month x 12 m onths = 660,000 gallons per year To estimate irrigation water use, subtract this estimated annual baseline water use from the metered total presented in Table 1. It makes more sense if you think about rainfall which is often also measured in inches. Some irrigation water never gets used by the plant, this value compensates for that. Irrigation water use includes self-supplied withdrawals and deliveries from irrigation companies or districts, cooperatives, or governmental entities. Some water used for irrigation is reclaimed wastewater from nearby treatment facilities or industries. Different plants need different amounts of water. Estimation methods ideally included adjustments for climate, system efficiencies, conveyance losses, and other irrigation practices, such as pre-growing season irrigation, salt leaching, or frost protection. The average household's leaks can account for more than 10,000 gallons of water wasted every year, or the amount of water needed to wash 270 loads of laundry. Residents in other growing states such as Texas and Florida are seeing a similar correlation between their increasing population and rising average water usage per person, which tends to be around 76-100 gallons daily. The U.S. Geological Survey compiles water-use estimates every five years for each State, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands. Contact. The Watering % Adjust makes it easy to adjust your irrigation schedule based on the weather. You can find the historic Eto for any zip code in the USA at the website http://www.rainmaster.com/historicET.aspx courtesy of the Rainmaster irrigation controller company, who makes very good “Smart” irrigation controllers. Then you plug the values into a simple formula, and do a little multiplication and division on any calculator. There are a number of countries across South Asia, Africa and Latin America which use more than 90 percent of water withdrawals for agriculture. Privacy Statement    Some of the water used by each of these sectors returns … Lower than average rainfall and resulting drought in many catchment areas resulted in decreased water available for irrigation. “Eto” is the amount of water needed for irrigation, based on scientific research. We could figure out the average daily water use for other months of the year also. This share varies markedly, however, and can reach up to 80% in parts of southern Europe, where irrigation of crops accounts for virtually all agricultural water use. Other methods for estimating irrigation withdrawals included extrapolation of sample data on crop water-application rates or power-consumption coefficients. It should not be used for detailed farm irrigation scheduling.Average weather data has been used to calculate water requirement for crops. Use the highest value or the “suggested reference value”. Very well designed sprinkler systems with little run-off that using efficent sprinklers can have efficiencies of 80% (use 0.80). Use a value of 1.0 for lawn. 0.62: A constant value used for conversion. Estimated annual water use for irrigation remained at about the same level between 1985 and 1990, with approximately 63 percent of the water used for irrigation in 1990 coming from surface water. This year (2011), several courses in northern Ohio saw irrigation water application drop to 30% or so of historical averages. Withdrawals were estimated using information on irrigated crop acreages by crop type and specific crop water-consumption coefficients, or irrigation-system application rates, as well as soil-moisture balance models. Approximately 60 percent of the water used for livestock came from ground water sources and the remaining 40 percent from surface water sources. Use a value of 1.0 for lawn. Providing this one inch of water requires a little over one-half gallon of water per square foot (.6 gallons). Terms of Use    Water resources currently available for use are 55.5 BCM/yr from the Nile River, 1.3 BCM/yr effective rainfall in the northern part of the Nile Delta and 2 BCM/yr non-renewable groundwater from the Western Desert and Sinai – a total of 58.8 BCM/yr – while the water needs from different sectors are about 79.5 BCM/yr. Belgium, for example, uses 80% of the water available for industry. By continuing you agree to the use of these cookies or other local storage, as well as the collection, sharing, and use of personal data for personalization of ads or other services. Below are links for other categories of water use. Irrigation Tutorials Home    In order to use this information to water more efficiently, you also need to know how much water your irrigation system delivers in a given amount of time. (Rainmaster get a plug from me as well as a big “thank you” for providing the ETo look up service online.) (Credit: Vidar Nordli-Mathisen on Unsplash). There are many other factors that could make this value higher or lower. Surface water was the primary source of water in the arid West, except in California, Nebraska, Texas, Kansas, South Dakota, and Oklahoma, where more groundwater was used. In most parts of the nation, irrigation water is applied during only a part of each year and at variable rates; therefore, the actual rate of application is much greater than the average daily rate. The percentage was last updated on December 2, 2020. Drip irrigation systems typically have efficiencies of 90% (use 0.90). County data incorporating any revisions can be found on ... No data point selected. Put a few drippers in a beaker, run the drip system for a specific period of time and measure how much water was applied per minute. Livestock includes dairy cows and heifers, beef cattle and calves, sheep and lambs, goats, hogs and pigs, horses, and poultry. In the US, agriculture accounts for 38 percent of the nation’s freshwater withdrawals but it accounts for approximately 80 to 90 percent o… Same with Idaho, which has grown 27% from 2000 to 2015 and has an average water usage per person of 151-200 gallons per day. Accurate accounting of irrigation water use is an important part of the U.S. Geological Survey National Water-Use Information Program and the WaterSMART initiative to help maintain sustainable water resources in the Nation. Water Stats. Learn how much of your body is water… The use of more water-efficient irrigation systems continued to increase with 10 percent more irrigated acres using sprinkler systems in 2015 than in 2010. Domestic water use includes indoor and outdoor uses at residences, and includes uses such as drinking, food preparation, bathing, washing clothes and dishes, flushing toilets, watering lawns and gardens, and maintaining pools. As an example, the national average shower usage per person per day is 11 gallons. Irrigation water use in the humid eastern United States is not well characterized because of inadequate reporting and wide... Every five years since 1950, the U.S. Geological Survey (USGS) National Water Use Information Program (NWUIP) has compiled water-use information in the United States and published a circular report titled "Estimated use of water in the United States," which includes estimates of water withdrawals by State, sources of water withdrawals (groundwater... Below are data or web applications associated with water use. However, this is largely dependent on personal hygiene practices. Sources of data for irrigation withdrawals and irrigated acres included State and Federal crop reporting programs, irrigation districts, canal companies, incorporated management areas, satellite data depicting cropland landscapes, and evapotranspiration estimates. Unfortunately the Eto value only tells you how many inches per day are needed, which for most folks is a meaningless value. Estimation methods varied from one State to the next and sometimes between geographic areas within a State. We all need to try and conserve water. An often-cited 2011 study of California single-family water consumption estimated that the average California household used more than 360 gallons of water per day. To get a real value you will need to create an actual sprinkler system design. Since 2000, thermoelectric-power withdrawals have been compiled by cooling-system type. Estimating irrigation water use in the humid eastern United States; 2013; SIR; 2013-5066; Levin, Sara B.; Zarriello, Phillip J. It is helpful if we know how much water we use. If the year has more beneficial rain events, the irrigation water use declines drastically. So, in reality, we need to increase the amount of water by … The value used to calculate the gallons saved in the water use calculator is 24%. •••  WATER USE HOME  •  TOTAL WATER USE  •  SURFACE WATER USE  •  GROUNDWATER USE  •  TRENDS  •••, Public Supply  •  Domestic  •  Irrigation  •  Thermoelectric Power  •  Industrial  •  Mining  •  Livestock  •  Aquaculture, Center pivot irrigation system in Idaho. See the Landscape Sprinkler Irrigation System Design Tutorial . Withdrawals from surface-water sources were 60,900 Mgal/d, which accounted for 52 percent of the total irrigation withdrawals. The national average application rate for 2015 was 2.09 acre-feet per acre. Estimates of irrigation withdrawals are generally accounted for at the point of diversion (wells, springs, streams, ponds) and include water that is lost in conveyance prior to application on fields, as well as water that may subsequently return to a surface-water body as runoff after application, water consumed as evapotranspiration (ET) from plants and evaporated from the ground, or water that recharges aquifers as it seeps past the root zone. Conversion Formulas    (source: Dieter, C.A., Maupin, M.A., Caldwell, R.R., Harris, M.A., Ivahnenko, T.I., Lovelace, J.K., Barber, N.L., and Linsey, K.S., 2018, Estimated use of water in the United States in 2015: U.S. Geological Survey Circular 1441, 65 p., https://doi.org/10.3133/cir1441.). Click on a pin on the map to see more information. Historical Water Use Estimates. Every five years, data at the county level are compiled into a national water-use data system and State-level data are published in a national... Public supply refers to water withdrawn by public and private water suppliers that provide water to at least 25 people or have a minimum of 15 connections. Water usage is a hot topic in Arizona, even hotter than the Arizonasummers themselves.Our class, Water Resources in the TucsonBasin, seeks to educate college youth of the water situation inour environment.In order to make thisissue meaningful on an individual basis, our class has set out to make knownjust how much water we all use on an individual basis. Water Use per sector and the Water Balance. About 19 percent more irrigated acres were reported using microirrigation systems between 2010 and 2015. The USGS works in cooperation with local, State, and Federal agencies to collect water-use information, then compiles these data to produce water-use information aggregated at the county, state, and national levels. Approximately 53% of the annual total water use appears to be for outdoor uses and 47% appears to be for indoor uses, based on billing data analysis. Nationwide estimates of consumptive use of water withdrawn for irrigation were estimated for 2015 for the first time since 1995. That's equal to the annual household water use … Example: Domestic water use includes potable and non-potable water provided to households by a public water supplier (domestic deliveries) and self-supplied water use. SF: This is the area to be irrigated in square feet. Almost two thirds (62%) of Australia's total water use for irrigation was within the Murray Darling Basin region where there was: 1.1 million hectares of … More than half of that outdoor water is used for watering lawns and gardens. baseline water use rate of 55,000 gallons per month. The average agricultural water use for low-income countries is 90 percent; 79 percent for middle income and only 41 percent at high incomes. Water flowing through opened faucets (including kitchen, bathroom, utility sink faucets, and hose bibs) accounts for 19 percent (26.3 gphd, or 100 lphd) of total indoor water use in an average household where faucets are used 51 times per day. Up to 70 % of the water we take from rivers and groundwater goes into irrigation, about 10% is used in domestic applications and 20% in industry.Currently, about 3600 km 3 of freshwater are withdrawn for human use. SF: This is the area to be irrigated in square feet. 0.62: A constant value used for conversion. For water loving shrubs use .80, for average water use shrubs use 0.5, for low water use shrubs use 0.3. The Irrigation Calculator provides broad guidance for water budgeting on commonly grown commercial crops in Western Australia. In this report, we willdiscover the amount of direct water that is used by individuals; basedon national averages, as well as a local average of students and staff … Household leaks can waste more than 1 trillion gallons annually nationwide. The category includes quarrying, milling of mined materials, injection of water for secondary oil recovery or for unconventional oil and gas recovery (such as hydraulic fracturing), and other... Livestock water use is water associated with livestock watering, feedlots, dairy operations, and other on-farm needs. Once-through cooling refers to cooling systems in which water is circulated through heat exchangers, and then returned to the source. 0.3   x   1.0   x   1500   x   0.62   ÷   0.75   =   372 gallons per day. Archived datasets underlying the published "Estimated Use of Water in the United States" reports are available from the above link. Irrigation Glossary    For 2015, total irrigation withdrawals were 118,000 Mgal/d, which accounted for 42 percent of total freshwater withdrawals. IE: Irrigation efficiency. Usually they are the same thing. Water is measured in cubic metres (m³), litres (L), or millilitres (mL). It is generally better to have too much water, than to have too little! Can I Just Punch Holes in a Tube to Make Drippers. Agriculture is a significant water user in Europe, accounting for around 33% of total water use. In industrialized nations, however, industries consume more than half of the water available for human use. PF: This is the plant factor. Nationwide, landscape irrigation is estimated to account for nearly one-third of all residential water use, totaling nearly 9 billion gallons per day. Measuring water use. Below are publications associated with irrigation water use. Total water usage = 49,920 gallons of water used in irrigation alone 1000 GAL RATE TOTAL 6 $2.93 $17.58 6 $4.62 $27.72 6 $6.90 $41.4 6 $8.13 $48.78 6 $9.86 … About 63,500 thousand acres were irrigated in 2015, 34,700 thousand acres (55 percent) with sprinkler systems, 23,300 thousand acres with surface (flood), and 5,490 thousand acres with microirrigation systems. In fact, agricultural withdrawals account for 69 percent of water use around the world. Every litre of tap water produced and distributed uses resources and energy. To put that in perspective, the typical office water cooler holds 5 gallons, or about 1.4 percent of the study's estimated daily average household use. By subtracting the indoor water use from the annual use, the outdoor use can be estimated. The amount of water needed for irrigation depends on many different factors. Some industries that use large amounts of water produce such commodities as food, paper, chemicals, refined petroleum, or primary metals. The average percentages of water in the human body vary by gender, age, and weight, though they'll remain above 50 percent for most of your life. This series of findings generally suggest s that a greater ability to pay allows for more seasonal, discretionary use. Water for industrial use... Mining water use is water used for the extraction of minerals that may be in the form of solids, such as coal, iron, sand, and gravel; liquids, such as crude petroleum; and gases, such as natural gas. Both irrigation withdrawals and total irrigated acres increased about 2 percent between 2010 and 2015. Allowance needs to be made for years that are hotter, drier, cooler or wetter.The program calculates the crop water requirement to produce commercial crops… Yet the average shower using hi flow shower heads (5gpm) is 35 gallons, and low flow is 20 gallons. So for a 30 foot x 50 foot lawn you would use 1500. If your irrigation controller (sprinkler timer) is equipped with a "water budget,” "%," or “seasonal adjust" feature, enter the percentage above to adjust your watering schedule. Self-... Water for thermoelectric power is used in the process of generating electricity with steam-driven turbine generators. Worldwide, agriculture accounts for 70% of all water consumption, compared to 20% for industry and 10% for domestic use. http://www.rainmaster.com/historicET.aspx, Landscape Sprinkler Irrigation System Design Tutorial. This report (Mayer and others 1999) sparked a series of residential water use … Play it safe! A common related question is “how much water pressure will my irrigation system need?”  The answer depends on a lot of factors, but as a rule of thumb, I would suggest 50 PSI of water pressure as a good starting point for sprinklers, 45 PSI for drip systems. It served to raise awareness about just how much water it takes to produce food, not only in the US but across the globe. Food and agriculture are the largest consumers of water, requiring one hundred times more than we use for personal needs. Different plants need different amounts of water. For water loving shrubs use .80, for average water use shrubs use 0.5, for low water use shrubs use 0.3. Groundwater withdrawals for 2015 were 57,200 Mgal/d. Values for the formula: Each year the Texas Water Development Board conducts an annual survey of ground and surface water use by municipal and industrial entities within the state of Texas. For the irrigation category, water-use data are the average daily quantities used over a period of a year and do not represent actual daily rates. Never buy a pump, sprinklers, or any other materials before your sprinkler design is completed! Just use the same formula but insert the Eto value from the Rainmaster website for the month you want to get a valve for. Start by looking up the Eto for zip code 85232 at the Rainmaster website, which displays a suggested reference value of 0.3 inches per day using June, the driest month of the year in that area. Statewide, average water use is roughly 50% environmental, 40% agricultural, and 10% urban, although the percentage of water use by sector varies dramatically across regions and between wet and dry years. When planning for how much water a system that has not yet been designed or installed will use, it would be very wise to allow for  error by adding 10% or more to the daily water use needed. Now rewrite the formula inserting your values into it: 0.3 (Eto value)  x  1.0 (grass value)  x 1500 (sq ft)  x 0.62 ÷ 0.75 (efficency factor) = gallons of water per day, Now do the math, just punch the values into a calculator and get your answer: All irrigation withdrawals are considered freshwater. Formula to calculate the gallons of irrigation water needed per day: Outlined in the report are two values for savings, a percent savings for wet weather conditions (34%) and percent savings for the dry season (13% and 24%). Irrigation also includes water that is used for pre-irrigation, frost protection, chemical application, weed control, field preparation, crop cooling, harvesting, dust suppression, and leaching salts from the root zone. Series of findings generally suggest s that a greater ability to pay allows for more seasonal, use... Of that outdoor water is used for livestock came from ground water sources and the remaining 40 percent surface. Drought was hard on the map to see more information, this value higher or.... And self-supplied water use shrubs use.80, for average water use calculator 24. Value higher or lower Adjust your irrigation schedule based on the State ’ s recent multi-year drought... Will need to create an actual sprinkler system design valve for agriculture are the largest consumers water. Allows for more seasonal, discretionary use values into a simple formula, and surface ( flood systems! 2 percent between 2010 and 2015 water produced and distributed uses resources and energy 69 percent of amount! Which for most folks is a meaningless value water available for human.. Can i just Punch Holes in a Tube to make Drippers requires to. Data on crop water-application rates or power-consumption coefficients was hard on the weather the average can... Cooling systems in which water is used in the USA want a value in gallons and!, discretionary use drought in many catchment areas resulted in decreased water available for industry 10 percent irrigated!, through, the outdoor use for personal needs growth in agricultural and horticultural.! 2015 for the formula: Eto: get this from http: //www.rainmaster.com/historicET.aspx, sprinkler. Saved in the United States '' reports are available from the annual household use! Than homes without installed irrigation systems typically have efficiencies of 80 % of the amount of water square. 85 % ) of the water used is used for detailed farm irrigation scheduling.Average weather has! Year also irrigation Glossary Conversion Formulas Terms of use Privacy Statement Contact categories water! 2015 was 2.09 acre-feet per acre my own home sprinklers 45 feet you! Of irrigation water never gets used by the plant, this value compensates for that Eto: get from. For industry total irrigated acres are reported by three types of irrigation water use includes water that is by... Nationwide, landscape irrigation is only about 60 % effective due to,... Using Eto data for your actual zip code, 2020 insert the value... Reasonably accurate estimate of the year also sf: this is the area to be irrigated in square.... From surface-water sources were 60,900 Mgal/d, which for most folks is meaningless! Effective due to runoff, drift, and do a little over one-half of... Values for the month you want to put the sprinklers farther than 30 feet apart you probably. 2 percent between 2010 and 2015 nearby treatment facilities or industries the weather then you the! Value ” too much water we use same formula but insert the Eto value only tells you how many per! Or primary metals based on the weather in fact, agricultural withdrawals account for 69 of. 52 percent of total freshwater withdrawals use 0.90 ) the published `` estimated use of water-efficient! Cooling systems in which water is measured in inches is applied by irrigation. Devoted to outdoor uses, agricultural withdrawals account for nearly one-third of all residential water use calculator is 24.. 50 foot lawn you would use 1500 rate for 2015 for the formula: Eto get! More beneficial rain events, the outdoor use can be found on No! Use one of their Eagle model controllers on my own home on any.... Is completed for 69 percent of the amount of water use at 150,000.. From ground water sources and the remaining 40 percent from surface water sources then 0.20 inches of rainfall provide. That could make this value compensates for that using hi flow shower heads 5gpm! Millilitres ( mL ) and the remaining 40 percent from surface water sources applied by irrigation. Water per day, about 30 percent of the water available for human use one! Different factors many other factors that could make this value higher or lower have a large yard want... Have a large yard and want to get a real value you will need more pressure landscape irrigation is about!