What to Charge for Water

It's got to be worth £0.15GBP per kWh.

Depend on your local and habits of the populous. In the US average for family of four is 400 gal a day. With average for your local divided by the pump output volume/time. You can get an idea how long the motor will need to run to provide it. With the motor load converted to watts times the cost of local KW power. Will give you an idea of your cost. May want to add a little for the extra wear to the pump. Is the pump going to be able to handle it? Peak usage is right after the even meal as every one prepares for the evening. Will the pump be able to keep up with the volume? Will the well handle the demand?

Check the rates at RV parks. The site charge includes water, sewer and electric.

Former 'Road Whore'

There is no 'fair' price...the actual cost will be tiny, what they are paying for is convenience and the infrastructure you are providing, there will be maintenance costs etc.
'Reasonable' cost is possibly a better term, enogh to cover you costs and make some proffit without seeming to exploit a captive customer, say a dollar or two would cover the pumping and the water, or are you metering the water?

In fact I'd say the water is what you should charge for, as that is what the customer is buying....Charge it at the same price as 'Evian' and you'll make a fortune.
If you are metering the water then you should include the cost of the electricity.

Del

Based on the fact that virtually everyone moans and groans about the cost of fuel for their car, but doesn't think twice about dropping $1.25 for a bottle of water, I think you're in a great bargaining position.

Average price is $25 per month. If they need to run pipe, etc. and connect, I couldn't see charging more than an extra $100 up front. But make absolutely certain that any contract specifies that they must also pay for a portion of pump repairs, etc... and ALSO, that they cannot then seel a share of their water to someone else!

That last part is uber important!

Another important aspect is make a one way valve installation mandatory.. they are cheap valves, but will save you in a freeze or any type of backwash.

JL Mealer
Mealer Companies LLC
America's NEXT MAJOR AUTOMAKER
http://mealercompanies.com

Flat rate of $26 per acre/foot

Oh yeah how much do you think an acre/foot of water is in gallons:

Hydrology Lab #1 Units http://www.shsu.edu/~geo_mrl/HydLab1.html

1.0 acre foot = 325,851 gallons 0.7 acre foot = 228,095 gallons

On a daily basis, 0.7 acre foot works out to 625 gallons/day.

According to Prof. Leipnik, the average suburban family with a lawn uses 0.3 acre foot/year or 267 gallons/day. So 0.7 acre foot is over twice the usage of the average suburban family. This is obviously a lot of water.

Stingy eh

Put a meter on the circuit and charge accordingly.

http://ask.metafilter.com/41419/How-do-electric-meters-work

I'm assuming you are in the united states, I think $30-$35/month would be more than fair.

You must take under consideration the electricity, chemicals, your possible drop in pressure when they use it "could be inconvenient", and the wear and tear on the pump. Then you have the cost to hookup... pipes, couplers and so on "extra".