Water Rights and Rain

Rainwater collection

All she wants is the rain water that lands on her roof. She lives with her husband and two children in a solar-powered home in rural San Miguel County. Committed to promoting sustainability, Kris Holstrom grows organic produce year-round, most of which is sold to local restaurants and farmers markets. On a mesa at 9,000 feet elevation, however, water other than precipitation is hard to come by.

So Kris did what thousands of farmers before her have done: She applied for a water right. Except instead of seeking to divert water from a stream, she sought to collect rain that fell upon the roof of her house and greenhouse. To her surprise, the state engineer opposed her application, arguing that other water users already had locked up the right to use the rain. The Colorado Water Court agreed, and Kris was denied the right to store a few barrels of rainwater. If she persisted with rain harvesting, she would be subject to fines of up to $500 per day.

How could this happen?

Like other western states, Colorado water law follows the prior appropriation doctrine, of which the core principle is “first in time, first in right.” The first person to put water to beneficial use and comply with other legal requirements obtains a water right superior to all later claims to that water.

The right to appropriate enshrined in Colorado’s Constitution has been so scrupulously honored that nearly all of the rivers and streams in Colorado are overappropriated, which means there is often not enough water to satisfy all the claims to it. When this happens, senior water-right holders can “call the river” and cut off the flow to those who filed for water rights later, so-called “juniors.”

Overappropriated rivers are not unique to Colorado. Most of the watercourses in the West are fully or overappropriated. Yet other western states allow or even encourage rainwater harvesting. The obstacle for aspiring rainwater harvesters in Colorado is not the state constitution. It speaks only of the right to divert the “unappropriated waters of any natural stream.”

The problem arises because Colorado’s Supreme Court has given an expansive interpretation to the term “natural stream” and coupled that with a presumption that all diffused waters ultimately will migrate to groundwater or surface streams. And because most streams are overappropriated, collecting rainwater is seen as diverting the water of those who already hold rights to it.

How is a roof a “tributary”?

Applying this legal fiction to Kris Holstrom’s effort to grow food at home, the state engineer argued that her roofs were “tributary” to the San Miguel River. Because the San Miguel River is “on call” during the summer months, Kris’s rain catchment would, the state engineer argued, “cause injury to senior water rights.” The court agreed, even though there was no proof that the water dripping from Kris’s roof would ever make it to the river.

If Kris wanted to collect rainwater for her gardens, she’d have to pursue an augmentation plan and convince the state engineer and water court that she could replace 100 percent of the precipitation captured. Not only did she have to return to the stream every drop of rain she collected, she would have to pay for a complex engineering analysis to prove that her augmentation water would return to the stream in a timeframe mimicking natural conditions.

She didn’t even try. “The farm doesn’t make enough money to pay for an engineering analysis,” she said. Indeed, it’s difficult to imagine a situation where it would make financial sense to harvest free rainwater that has to be replaced with another source of water.

The notion that you can’t utilize the rain falling on your roof might be easier to accept if you really were interfering with senior water rights, but in many situations it just isn’t true. In Kris’s case, most of the rain she collected would have evaporated or been transpired by native vegetation long before it ever reached the San Miguel River.

Hardly a drop in the bucket

A recent study commissioned by Douglas County and the Colorado Water Conservation Board has confirmed that very little precipitation that falls on an undeveloped site ever returns to the stream system. The study focused on an area in northwest Douglas County, where the average annual precipitation is 17.5 inches. In dry years, 100 percent of the annual precipitation is lost to evaporation and transpiration by vegetation. In wet years, a maximum of 15 percent of the precipitation returns to the stream system. On average, just 3 percent of annual precipitation ever returns to the stream.

Despite this hydrological reality, Colorado law requires anyone wanting to use rainwater catchment to send to the stream an amount of water equivalent to 100 percent of all precipitation harvested. That is, in effect, a gift to prior appropriators paid for by folks trying to live more sustainably.

An effort to address this problem stalled in the Colorado legislature this past session. A bill by state Sen. Chris Romer, D-Denver, would have allowed rural residents not on a municipal water system to store rainwater in cisterns up to 5,000 gallons. The bill also would have authorized 10 pilot projects where new housing developments could collect rainwater from rooftops and other impermeable surfaces. But even this tepid effort to update water law was sent to committee for further study.

The committee should use this study period to produce a bill that takes a more aggressive approach to water sustainability. The first thing is to make sure the benefits of rainwater harvesting are not dissipated into oversized yards filled with water-guzzling bluegrass. A serious effort would limit harvested rainwater to food production and Xeriscaped yards.

A resource down the drain

Even greater benefits could be achieved by promoting wide-scale rainwater harvesting in developed areas. Traditional land development practices typically direct runoff from roofs and other impervious surfaces to pollutant-laden streets and parking lots, and then toward storm drains.

Both of these problems would be ameliorated if all buildings were equipped to catch rainwater for later use. Additional benefits could be realized if the water collected from rooftops was brought inside for nonpotable uses. Rainwater that would otherwise be lost to evaporation or storm drains could be used in toilets and washing machines, and then sent to the treatment plant, thereby bringing more water into municipal water systems.

Colorado is expecting 3 million new residents by 2035. At the same time, climate change may be conspiring to exacerbate the water woes of all of the states served by the Colorado River. Rainwater harvesting is no panacea to deal with water shortages, but it should be part of a multifaceted approach to a looming crisis.

Fully utilizing precipitation where it falls reduces the demand on other water resources, leaving more water in streams or aquifers. The most important benefit of a legal change stimulating wide-scale rainwater harvesting may be its fostering of a new water ethic. People who make a personal effort to collect and utilize rain are less likely to waste water or tolerate public policies that allow waste by others, such as inefficient irrigation or inappropriate residential landscaping.

When people are maintaining gutters and cisterns to flush their toilets or grow their gardens, they are more likely to appreciate the importance and scarcity of water. They might finally say no to headlong growth that shows no regard for long-term availability of future water supplies.

Colorado should embrace rainwater harvesting. The legal fiction that all rain is tributary to a stream should be abandoned. Others should not be allowed to own the rain that falls on your roof before you can use it for reasonable domestic uses.

57 thoughts on “Water Rights and Rain”

  1. Stupid is as stupid does. Liberals in the country are even dumber than their counterparts in the cities! Could be nothing but a Liberal who interpreted that law. Dumb! Dumb! Dumb!

  2. People in Colorado are idiots. Almost as stupid as Californians.

  3. The problem is obviously bureaucratic ignorance (not stupidity). The state law should be amended to require any harvested precipitation be required to be used solely on the same property of which it was harvested. That way “senior rights” don’t have a leg to stand on, the water is far less likely to be wasted, and if evolving a municipal water district…it would conserve every gallon saved.

    The Colorado legislature as well as many Colorado citizens need only to be taught, not criticized as being stupid!!!

  4. Nope.

    They’re not ignorant.

    They’re stupid.

    Also, greedy and short-sighted.

    Colorado is rapidly becoming the same sort of self-destructive hellhole that California has become since the ’60s. Filling up with witless consumers who moved here for the scenery and the sunshine, and then insisted on killing the goose that laid the golden egg.

  5. Really appreciate the insightful comments. They certainly help to gain a deeper understanding of the problem. Do you people do every add anything constructive or just useless offer insults?

  6. “Not only did she have to return to the stream every drop of rain she collected, she would have to pay for a complex engineering analysis to prove that her augmentation water would return to the stream in a timeframe mimicking natural conditions”

    Okay we will “return to the stream in a timeframe mimicking natural conditions” by the same way that it would if she did not collect the water by dumping it on the ground to be worked through the natural rain cycle.

  7. This is why LAWS and Governments must be changed
    RIDICULOUS…The LAW IS AN ASS

  8. I cannot understand the stupidity of the situation. There is a very serious problem if Goodness, Freedom and Common Sense are obstructed this way. This is beyond stupidity. This is ridiculous.

  9. What the blithering bureaucrats aren’t recognizing is that if people use rainwater from their own property, they’re reducing demand on municipal water supplies.

    This story makes me want to go to Colorado, set up a rain barrel, and go to court to get their law overturned on the basis that it requires a fourth-amendment violation to enforce it.

  10. “Stupid is as stupid does. Liberals in the country are even dumber than their counterparts in the cities! Could be nothing but a Liberal who interpreted that law. Dumb! Dumb! Dumb!”

    Thanks for the comment, since the “liberal” is the one with their own business, working hard and trying to collect the rain water that falls on their own house as a natural resource.

    Meanwhile, the pro-water rights, big business, republican supported party in the matter sits back, collects the water from a natural resource and works hard by getting laws passed, politicians paid and keeping a team of lawyers….the dumb, dumb dumb liberals indeed. Thanks for highlighting who the dumbest of them all is…

  11. Its simple – you have to “Out Moron” the government. Collect the rainwater, inform them that you are storing it for collection. When they don’t pick it up after a week claim Abandonment of the water then use it. That will make their heads spin.

  12. Does this dumb bitch apply for government permission before she takes a drink of water?

    I don’t recall applying to the police department for permission before I blow off the speed limit on the highway.

    TL;DR Government is not your friend. Do whatever you can get away with.

  13. The reason that this law persists is that it favors established moneyed interests over the individual small landowner. Therefore, as our democratic system has evolved towards weak accountability and strong government, the resources are going to go to the politically connected.

  14. I wonder if there were any liberals in Colorado
    at the time the prior rights doctrine was started.

  15. Does this make it illegal to own a swimming pool in this jurisdiction? Swimming pool owners are collecting rainfall for their own purposes.

    What about a home garden? My vegetables are now nourishing themselves with rainwater that belongs to someone else (before it even hits the ground).

    Is it illegal to go outside and open your mouth to the sky during a rainstorm?

  16. This is not a liberal issue at all. In fact it falls under the rubric of “property rights”, which when it was controlled by a few was put into law all these circumlocutions. All the western states have such egregious claims not just to water, but all sorts of natural resources including mineral rights. Its chief principle is to privatize profits and socialize all risks. In other societies it would aptly be called plunder.

    The engineer is merely implementing what the legislatures have enacted and mandated by the property barons of yore. A liberal interpretation of the situation would inform anyone that we ought to change the laws so “first come first served” has passed it’s usefulness.

  17. Stupid is as stupid does. Conservatives in the country are even dumber than their counterparts in the cities! Could be nothing but a Conservative who interpreted that law. Dumb! Dumb! Dumb!

  18. Colorado is a PRIOR APPROPRIATION state. All water in the state has already been claimed by downstream users such as California, Nevada, New Mexico under the Colorado River Compact (federal law). Colorado had a legal obligation under this compact to delivery 8,500,000 acre/ft a minute to Lee’s Ferry.

    The reason this person cannot claim a ‘water right’ is there isn’t any unclaimed water available. It has all been appropriated. Sorry, you came to Colorado about 100 years too late. Try buying water rights from someone else who has senior rights if you really NEED water rights (you don’t).

  19. An addendum to my previous comment:

    One way to counter “senior rights” is to attach “senior responsibilities” as well. In practical terms it means, costs of flood control, damages from floods, sink holes, shrink/swell, and landslides are proportionally borne by the rights holders. It’s easy to assign the flood damage by watersheds in proportion to rights holders. In the event of default, such rights revert back to the state. This I think would be the most equitable solution instead of making exceptions here and there for convenience to some property owners, such as this farm that wants to collect its runoff.

  20. My two cents — People trying to control something that falls out of the sky is just ludacris and they are just applying more taxes and want more of your money so you stay enslaved to a system that is bound to fail. Honestly, it’s water and we need it to survive. The people really do have to join together, worldwide, and fight this system of enslavement. They are trying very hard to get rid of the middle class and I do hope people realize what their gov’t is doing, Domestic and International. I really don’t know how its going to come about, but I do hope to see the people come together instead of fighting each other. Seek the truth and it will set you free.

  21. A liberal decision? Maybe. Just as likely a claim by businesses which would point the other direction, wouldn’t it?

  22. that is one of the stupidest laws i have ever heard of. it’s just a bunch of liberals being dumb

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