Go to "Minimum Stream Flow" Policy Issues Package
ISSUE: MINIMUM STREAM FLOW

EXISTING STATE LAW

Editor’s note: Because of the unique political, legal, and environmental attributes of each western state some methods of protecting instream flows may be more suitable for certain states than others. The following is intended as a brief primer of current administrative methods with links to sample legal language from other states. We would like to thank David Getches of the University of Colorado School of Law for his helpful comments.

INSTREAM FLOW WATER RIGHTS

Definition: “A water right issued for instream use is a right to maintain a specified level of flow at specified times through a specified reach of river.”(1)

Example: Oregon Revised Statutes 537.332 to 537.360

Recognized Water Rights: AZ, CO, ID, NV, OR, WY 
Limited Applications: CA, MT, NE, SD, UT, WA 
None: AK, KS, OK, NM, ND, TX 

Advantages:

  • Instream water rights raise instream uses to the same legal basis as offstream uses.  This is attractive in many states because it fits neatly into the current system.
  • Water rights, as property rights, provide strong legal protection and could be more permanent than alternative instream flow protection methods.
  • These state water rights have also been recognized in the past by the federal government, whereas other methods of instream protection have not. 

Drawbacks:

  • This system is least useful on fully appropriated streams. Even then, however, these rights can have a beneficial impact on changes in water use.
  • Water rights are usually too junior to other water rights to do much good, as they do nothing to return water to dewatered reaches of a stream. 

Water Right Transfers

Definition: The use of recognized instream water rights to facilitate the transfer of water from offstream uses to instream uses. Details may vary, but some states allow rights to be sold, leased, traded, or donated as long as the changes are harmless to existing water holders and they are approved by the appropriate supervising agency.(1)

This concept is basic to water trust rights, but water rights transfers are also used in systems like Colorado where senior rights can be transferred to state agencies.  It is possible, that water trusts could someday gain the ability to acquire water rights and transfer them to the state agency. 

Example: Oregon Revised Statutes 537.348

Advantages:

A way to voluntarily provide for the transfer of rights while protecting vested interests. 

Drawbacks:

Cannot occur in states which do not recognize instream water uses or states that do not yet allow transfers or that restrict the types of transfers which are allowable.

Trust Water Rights

Definition: Water trusts acquire temporary or permanent water rights from voluntary lessors or sellers and/or use market-based incentives to encourage these private and public owners to dedicate their water rights to restoring habitat, improving water quality, and public recreation. 

Example: SERC’s Minimum Stream Flow Protection Bill

Advantages:

  • Uses a voluntary, market-based approach that mimics the highly effective efforts of land trusts to protect instream flows.
  • The flexibility and voluntary nature of the program can allow for rapid improvement in stream flows.
  • Facilitates acquisition of senior rights which are currently absent from most programs. 

Drawbacks:

  • The effectiveness is only strong if the state, private rights holders, or the trusts have the legal power to enforce real protections to ensure that donated water remains in protected reaches, and is not appropriated by junior rights holders.
  • Cannot occur in states which do not recognize instream water uses.
  • Some states restrict those who can participate in a trust program.
  • Can require significant funding to achieve minimum levels of environmental protection. 

SPECIFIED FLOW LEVELS

Minimum Stream Flows (Base Flows)

Definition: “Flow levels below which new appropriations will not be allowed.”(1)

Example:  Washington Administrative Code, Chapter 173-500

Instream Reservations

Definition: “Reserve water for use instream, thereby preventing the water from being appropriated for other uses.”(1)  

Example: Montana Code Annotated (2001), 85-2-316. State reservation of waters. 

Advantages:

In some states, such as Montana, where streams are not fully appropriated, the reservations can be established before new development. 

Drawbacks:

  • While both minimum stream flows and instream reservations have been integrated into existing systems of appropriative rights by use of priority dates, these rights are junior to existing appropriations and can only be effective by way of future appropriations or additional changes to senior appropriations.
  • Do not provide a way to add water back into streams
  • Usually rights are too junior to have much effect
  • If they are not also backed by “instream water rights,” then base flows and instream reservations may not have the legal standing needed to provide adequate protection. In other words, additional legal protections of instream water uses may be necessary in a state to protect specified flow levels from pressure from more junior rights holders if instream uses are not legally recognized.
  • Due to periodic review, protections could potentially be changed or revoked by a later administration with different priorities. 

ADMINISTRATIVE PROTECTIONS

Definition: The application of public interest criteria by state water control agencies to appropriations and transfers that include protection of fish and wildlife. 

“All [western states] except Colorado and Oklahoma require that new appropriations be in the public interest, and many of the states apply public interest criteria to water rights transfer and change applications.”(1) 

Example: California Water Code (1257)

Drawbacks:

  • Administrative review can only modify existing conditions if the agencies are specifically empowered to review past decisions.
  • Most instances of administrative review are applied inconsistently and sporadically.
  • Inefficiencies, changes in administration, and funding limitations can further erode protections. 

STATE RIVER PROGRAMS

Definition: The legal designation of certain rivers as having special characteristics worthy of preservation. States have used a variety of protections to maintain the rivers for specific recreational and ecological purposes. State river protections can protect flows by declaring the primary purposes of designated waters as recreation, fish and wildlife uses. In order to achieve these goals, the natural characteristics and water quantities are protected by restricting subsequent withdrawals and other disturbances such as dams and other facilities. 

Examples:

Advantages:

Can provide substantial and permanent protections for key streams. 

Drawbacks:

If the program is too weak or ineffective, the efforts in passing the legislation will not have improved anything.  The program is only as good as the legislation behind it. 

CONSERVATION PROGRAMS

Definition: In some states, programs exist to apply water saved through conservation towards instream use. 

Example: Oregon Revised Statutes 537.455 to 537.500 

Advantages:

Increased efficiencies and other improvements benefit the stream by reducing wasted water and can benefit rights holders by reducing operating expenses.

Drawbacks:

  • There is an absence of strong monitoring and metering of water use and/or stream gauging.
  • Some states require that salvage water go directly back to the stream for use by the next water right holder.

ALL OR SOME OF THE ABOVE

When deciding which programs or policies you would like to introduce in your state, you should bear in mind that very few of them are mutually exclusive. There is great potential, and some times a necessity, to utilize a number of these strategies simultaneously or incrementally.

Some states such as California and Texas have minimal groundwater management at the state level, and groundwater programs in other states may vary significantly. Care must be taken, therefore, to ensure that any proposed legislation (including our sample bill) be consistent with existing state groundwater management laws.

The sample bill below is primarily based on current Washington law with some adaptations from other western states, as well as some suggestions from the group American Rivers. This legislation strives to achieve three essential goals that a quality piece of instream flow legislation should possess:

  1. Requiring a state to draw a line of what the minimum flow of river or stream should be – and strongly enforce it.
  2. Preventing people or businesses from usurping water use laws by taking water out rivers via underground wells.
  3. Giving individuals and environmental organizations the same ability as ranchers and businesses to purchase water rights. 

Example: SERC’s Minimum Stream Flow Protection Bill

Sources:
(1)
Materials presented here are predominantly drawn from Chapter 6 “Methods the States Use to Protect Instream Flows” pp. 137-165 of:

Gillilan, David M. and Brown, Thomas C. (1997), Instream Flow Protection: Seeking a Balance in Western Water Use, Island Press: Washington, D.C.


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