Originally Posted By: andrewg
Originally Posted By: MNgopher
Shall we review those numbers again ? For water planning purposes (I am a water resources engineer), the usual design numbers for interior home usage are 100 gallons per capita per day in this region. Our home has 4 people living in it. Thus 400 gallons per day for planning purposes. For a quarter, that is 36,500 gallons. We used 34,000 gallons total including outdoor usage (just shy of 100 gallons per day).
For the winter quarter (no irrigation in the winter in MN), we fluctuate between 11 and 13,000 gallons for the quarter, which is about 33 gallons per day per person. We use roughly 1/3rd the design numbers per capita in our household.
By comparison, in your earlier post, you indicated about 5000 gallons per month (I had to assume the month) (including all usage. That equates to about 82 gallons per day per person.
Our irrigation for the last quarter was around 22,000 gallons, applied over a 1/2 acre. That is about 1.6" of added precipitation in the quarter, and a regular lawn requires around a 0.5" of precipitation (rain or irrigation) per week to be maintained. We put about 0.12" per week down for irrigation last quarter. (Varies depending on the week).
Wow....you know your stuff. You sure have inexpensive water in Minnesota. It's strange because here I sit...in a very rain soaked region from fall through late spring, including huge snow pack in the Cascade mountains (made available every spring) and yet my water is costs are still high. I have no sewer or other fees attached to my bill either. One more month to go and my next bill arrives....I expect it to be close to $400 (60 day period).
Yikes! So how much water do you use? At those prices I'd be digging a hole for an outhouse, and collecting rain water off the roof for the garden. If you're watering your lawn 3 times a week and washing the car every other day then I guess you have to pay to play...