Water Sense and Nonsense
| In North Texas we find ourselves looking at a second summer of watering restrictions despite heavy rainfall over the past seven months or so. At first blush that doesn’t seem reasonable. Two of our three reservoirs are above conservation level. If I understand it that means they must release water downstream for flood control purposes. The third is half full and rising. By my calculation we are at net 90%+ normal storage capacity. If as seems likely the watersheds get any more rain it appears to me we should continue at that level for at least several more weeks, maybe even well into summer. It looks like we’ve dodged a bullet. By most measures a two year drought ended in January when soil moisture conditions returned to normal. Had it continued we might be beyond restrictions and well into rationing by now, with more severe measures on the horizon. It’s worth asking how we came to such a pretty pass. As droughts go two years isn’t that long. Officials have known for decades what our water usage projections were. They have always known we are subject to periodic drought. The drought was never the problem. Population growth has just outstripped water planning. For the moment they are right to continue restrictions. We have no spare water to provide for potential disruptions. Two years ago we had a big pipeline break. Had that happened last year we might have had big trouble. New supplies are supposed to come on stream sometime next year but who knows what could happen. There could be delays. We could have another dry spell. There could be a major accident or incident. I don’t think anybody is likely to go thirsty, heaven forbid, but a genuine water shortage would not be a pretty picture. So we need to continue restricted use for a bit longer. There are good reasons to practice conservation for the long haul too, though there has not been as much informed public discussion on the topic as I would like to see. The most common means of adding water capacity is constructing new reservoirs or adding depth to existing ones. That means taking private property through eminent domain, never a good thing and there has been a lot of public discussion on that. My favorite solution is waste water reclamation. That is a big part of the current North Texas answer and something we should all know more about. There has been a lot of silliness. My personal favorite is the official who complained recently that we have had a population explosion but there is no more water on the planet that when time began. He’s right of course, but the point is that when viewed from a global perspective water is in inexhaustible supply. No matter how much we use or abuse it is all pretty much still here. The issue is one of getting clean fresh water to where it is needed when it is needed. We have sometimes applied remarkable ingenuity to the task. Drive out to Yuma sometime and see what they’ve done with the Colorado, or ask the Israelis about the Jordan. Not uncontroversial maybe but you can’t argue that they have managed mighty feats of engineering. Then there are the environmental issues, the health of rivers and estuaries is a serious concern clouded by a lot of frivolity. How about the new eco-friendly McKinney Green building in Collin County? They brag about using recycled rainwater, a redundancy if there ever was one. It isn’t clear to me what the environmental advantage is. If they used the normal municipal supply the excess rainwater would presumably either be absorbed into ground water or go directly into the lakes as runoff. Aren’t both those good things? I wonder if they pay their fair share of the sewage bill. |

