Irrigation Workshop Report

I want to give at least a little bit of information from the January 22 Irrigation Workshop. First I'll point out that one of my duties was to serve as host of the program so I was able to devote my full attention to no more than half of it, at best, as I had to spend some time distributing handouts, loading presentations onto the computer and just chatting with others involved.

But I was able to pick up a few things. The first thing is to direct people to Lyndon Kelley's page of irrigation resources. Seriously, if you're interested in this, go there now. I'll wait.

A few items of note besides this. First, if you're getting started in irrigation, once you've analyzed the economics, the next step is to determine if you have water. Mark Basch from the Indiana Department of Natural Resources talked about this and said that in Central Indiana, we have sufficient groundwater. By and large, by installing irrigation you don't need to be worried about somehow causing a community-wide drought. Now you may negatively impact wells of some neighbors, particularly those with shallow wells, but the fears about this are greater than the reality. In many cases when someone's well goes dry and they blame a large capacity water user, investigators will look five miles away and find that similar sorts of wells are going dry when there isn't any irrigation going on nearby. In essence, in many of these cases people's wells go dry during a drought because of the drought, not nearby irrigation. This doesn't mean that irrigation never has an impact, just that this doesn't take place nearly as often as rumor would have you believe.

However, even though we have pretty good groundwater supplies in Central Indiana, this does not mean that you'll be able to find sufficent water to irrigate with just anywhere. Mike Chapman from Peerless-Midwest discussed how he investigates to determine if a well will be able to deliver the 300 gallons per minute necessary to irrigate with. While there are some geographic guidelines which will suggest where are good places to look, only by boring a test well can you be sure. One of the issues is that in Clinton County there just aren't that many large capacity wells in use. In some areas there may be a well every mile and you can be pretty sure nearby areas have sufficient water but that isn't the case here. IDNR's Water Well Record Database is a good place to start checking. Select the "Enhanced Water Well Viewer" link for an online map.

Screenshot of Large Capacity Wells in Clinton County from the DNR Water Well Viewer

I'll add one other personal note. From an efficiency perspective, once you've drilled a large capacity well, installed pumping equipment and provided power to the site, it makes sense to irrigate as much ground as possible. While we have some large fields in Clinton County of 160 acres or more under one owner, this has become the exception rather than the rule. Give some thought to partnering with a neighboring farmer to share costs and operate more efficiently, at least initially, if you're going to be irrigating smaller parcels.

I have heard less discussion about irrigation over the winter than I did last summer and fall however if you're interested you should look at Lyndon's web page. There is another Irrigation Program scheduled for February 12 in Vincennes. I don't have any additional information on it but you can contact the Knox County Extension Office to find out more about it.