Frequently Asked Questions  
 

 


Q What is the ‘Residential Water Use Calculator’?
A The ‘Residential Water Use Calculator’ is an online application designed to assist Aurora citizens in better understanding their water use and making informed decisions when looking for ways to reduce their water consumption.

 

Q Why should I complete the ‘Residential Water Use Calculator?
A Everyone uses water, but understanding exactly how much water they use and where they use it is not always easy. After completing the ‘Residential Water Use Calculator’ you will have a better understanding of how you are consuming water in your daily activities. The calculator will also provide you with a prioritized list to guide your conservation efforts.

 

Q Who should complete the ‘Residential Water Use Calculator’?
A The ‘Residential Water Use Calculator’ is intended for homeowners, landlords or tenants in single family homes, or housing with 4 or less units per water meter. Different rates apply to commercial properties or properties with more than 4 units per water meter. We also offer a Water Use Calculator for Homeowner’s Associations and commercial property owners that are interested in looking at their water usage and work toward reducing their water consumption. For more information contact the Water Conservation Division at (303) 739-7195.

 

Q How long will it take me to complete the ‘Residential Water Use Calculator’?
A The number of fixtures in your home and the number of irrigation zones you have on your lot will determine the amount of time it will take to complete the calculator. Your knowledge of your fixtures and zones will also affect the amount of time it will take. We recommend that you review the ‘Residential Water Use Calculator’, gather the information required, then sit down and enter the data into the calculator. We estimate that it should take between 30 minutes and 2 hours to complete.

 

Q What if I don’t have time to complete the calculator in one session?
A That’s ok. We expect that most people will not complete the ‘Residential Water Use Calculator’ in one sitting. There is a lot of information to gather and work through, so the ‘Residential Water Use Calculator’ has a ‘Save Progress’ button located at the top of the calculator. After entering your email address, a message will be sent to your email inbox.  When you are ready to continue, click the link contained in this message to return to the calculator and pick up where you left off.

 

Q How can I return to my saved profile if I lose the email with my return link?
A If you have lost the message containing your return link, you can enter your email address below and any profiles you have saved using that email address will be re-emailed to you.  If you never saved your profile, you will need to complete the ‘Residential Water Use Calculator’ again.

Email Address:

 

Q Will the ‘Residential Water Calculator’ adjust each year when water rates and rebates change?
A Yes. As water rates and rebates change, we will update the ‘Residential Water Use Calculator’. As long as you save the email message containing the link to your saved profile, you can return to the calculator and the updates we've made will adjust your results. If you have made any changes to your fixtures or irrigation since your last visit to the calculator, you will need to update your profile to produce accurate results.

 

Q What is the future of the Residential Water Use Calculator?
A Our goal is to use the ‘Residential Water Use Calculator' as a tool to direct people towards the most effective water conservation steps possible. Citizens will be asked to complete this calculator before applying for any rebates. We can then work with individual customers to tailor a specific conservation plan.

 


Q What information will I need to complete the ‘Residential Water Use Calculator’?
A You will need to know the following:
  • The year your home was constructed.
  • The gallons per flush of your toilet(s), the gallons per minute of your shower(s) and faucet(s), and their model years.  If you do not know the model year, it is assumed to be the year your house was built.
  • The gallons per load of your washing machine and dishwasher, as well as their model years.  If you do not know the model year, it is assumed to be the year your house was built.
  • The gallons per use of your water fixtures, as well as their model years.  If you do not know the model year or the flow rate, it will be determined based on the fixture model year or the year your house was built.
  • The square footage of each irrigation zone, as well as the precipitation rate or the number and type of heads in each zone.

 

Q What is the difference between a full bath and a half bath?
A A full bath has a shower and/or bathtub, a sink and a toilet. A half bath does not have a shower or bathtub.

 

Q What do you mean by primary, secondary, third, fourth for each fixture?
A Primary, Secondary, third and fourth refers to how much each fixture is used on a daily basis. For example, the ‘primary toilet’ is the toilet that is used the most in your home.  If you have one toilet it will be the primary toilet.

 

Q What if I don’t know my use per day information?  For example, the number of toilet flushes per day.
A The Aurora Water Conservation Division staff has done extensive research on national averages. These national averages will be used if nothing is entered into the boxes.

 

Q How do I find the year and gallons per flush information for my toilet?
A The year the toilet was built is typically stamped on the inside of the toilet tank. This stamp can be located on the sides or underneath the lid. If the gallons per flush information is not inside of the toilet tank, it may be on the toilet bowl behind the seat.

 

Q What if I don’t know how many gallons my fixtures output per use?
A Researched values, based on the construction year of your house or the fixture model year, will be used instead.  Your results will be more accurate if you know your fixtures’ numbers.

 

Q What are the national averages?
A
Toilet 5.1 flushes per day per person
Shower 5.3 minutes per person per day
Bathroom Faucets 4.86 minutes per person per day
Additional Faucets 3.24 minutes per person per day
Washing Machine 2.86 loads per week per person
Dishwasher 2.35 loads per week per person
Irrigation Water This varies according to geographical region. In Aurora, approximately 42% of our water is applied to our landscapes.

 

Q Why won’t the ‘Residential Water Use Calculator’ allow me to fill in watering information if I don't have an automatic irrigation system?
A The ‘Residential Water Use Calculator’ assumes that if there is an irrigation system, the system is on a clock and watering on a regular schedule. Often if people water their yards with a hose or sprinkler, they do not follow a set schedule and calculating water use can be difficult. However, if you are interested in figuring out your outdoor water use, estimate your average watering time per day and fill in the irrigation tabs. The results may not be exact, but they will be a good estimate. You can determine how much water you apply to your property with the help of a Water Smart Reader. Contact the Aurora Water Conservation office at 303-739-7351 for more information.

 


Q What is a Zone? How do I know what a zone is in my yard?
A A zone is an area of your property irrigated at the same time with identical irrigation components. If you have an irrigation clock on a residential system, you can have up to 24 zones. To promote water conservation you should not have two areas of differing water needs within the same irrigation zone.

 

Q What do I put in the Zone Description box?
A The zone description box allows you to personalize each zone for quick and easy referencing. For example, you could enter, “Front lawn – right side” to remind you where Zone 1 is located and what is being watered in that area.

 

Q How do I know what soil type I have in my yard?
A The options for soil type are sand, clay or loam. To determine the soil type in each of your zones, dig down about four inches and take a sample of moist soil about one inch in diameter. If you can roll the soil into a tube thinner than a pencil, the soil is clay. If the soil breaks apart and has a consistent, gritty feel, it is sand. If the soil contains a lot of organic matter and breaks apart in pieces of varying size, the soil is loam.

 

Q What is Distribution Uniformity?  How do I determine what mine is?
A Distribution uniformity is a measure of how evenly your irrigation system distributes water to a given area. The lower the uniformity, the more unevenly the water penetrates the soil. The higher the percentage the more efficient your system is. The best way to determine your distribution uniformity is to take advantage of Aurora Water’s free CRC water audits. Call (303) 999-3820 ext. 217 for more information. You can also click here to see a list of certified auditors.

 

Q Which Irrigation System Information option should I use when filling out the Zone information?
A All three options have merits.  However, if you have had an irrigation audit, all the necessary information should be included in your audit.  Purchasing a Water Smart Reader works like an odometer for your water meter.  Simply run each irrigation system zone for a set time (5 minutes) and the reader will give you the information you need.  The last method, Irrigation System, requires you to know what types of heads or how many drip emitters you have in each zone.

 

Q How do I purchase a Water Smart Reader?
A A Water Smart Reader can be purchased through the Water Conservation office. Call (303) 739-7351 to schedule an appointment for a water conservation specialist to install and instruct you on how to use your new Water Smart Reader.

 

Q What is precipitation rate?  How do I know my precipitation rate?
A Precipitation rate, usually calculated in inches per hour, is a measure of how much water your irrigation system outputs in a zone. There are a number of ways to determine your precipitation rate. The easiest way to calculate your precipitation rate is though a free CRC irrigation audit. Call (303) 999-3820 ext. 217 for more information. You can also click here for a list of certified auditors.

 


Q Why do I need to enter my water bill information when you already have that information?
A We ask you to fill in your water bill information so you can compare your actual use (the bill) to your assumed use (your data). Often, people don’t know exactly how they use their water.  If you see a difference between the two, it will prompt you to go back and review what you have entered into the calculator.

 

Q How do I obtain my latest water bill if I can’t find it?
A If you don’t have your latest water bill handy, or you have lost it, you can click here to go to the City of Aurora’s Water Department billing website. Follow the correct link under Click2Gov to obtain a paperless copy of your water bill.

 


Q Why do the cost values for each fixture fill in automatically?
A People who use the ‘Residential Water Use Calculator’ have not replaced their fixtures yet and do not know what the costs may be. Based on our research, the cost values are filled in automatically to help citizens quickly complete the ‘Water Use Calculator’. If you know the exact fixture cost or installation cost, please enter them to more accurately predict your water savings.

 

Q What rebates does the City of Aurora offer to help me pay for my retrofit decisions?
A The city offers rebates for high-efficiency toilets and clothes washers, a Xeriscape rebate, and an irrigation system rebate. For more information, please click here to visit our rebate webpage.

 


Q Do I need to convert my entire zone to be eligible for the Xeriscape rebate?
A You do not need to convert an entire zone, but if you convert part of a zone, you need to make sure that the Xeriscaped area is watered on a separate timer from the bluegrass that is left. If they remain on the same clock settings, we cannot give a rebate.

 

Q What if I don’t know the cost per square foot to convert my landscape? Is there a range I can assume?
A If you are planning on doing the retrofit yourself, assume $1 per square foot, or $3 per square foot if you are going to hire a landscape contractor.  If you have already received a bid for your project, divide the cost by the square footage to obtain the price per square foot.

 


Q What information can I expect to receive after completing the ‘Residential Water Use Calculator’?
A You will receive a prioritized list of actions to make the most of your conservation efforts.  If you have an irrigated area, you will also receive a calendar with a suggested watering schedule for each zone.

 

Q Why is Aurora Water and the City of Aurora promoting the use of the ‘Residential Water Use Calculator’?
A Water is a scarce resource.  Each year more citizens are receiving rebates for low-flow toilets, high-efficiency clothes washers and Xeriscape conversions.  Many people fail to realize that something as simple as changing out an old shower head will save thousands of gallons a year.  The goal of the 'Residential Water Use Calculator' is to provide citizens with a tool to assist them in intelligently approaching water conservation. We aim to provide better customer service for our customers and help them to prioritize their conservation efforts.