The Colorado Water Meters in the San Luis Valley Initiative, also known as Initiative 15, was on the November 3, 1998 ballot in Colorado as an initiated state statute, where it was defeated. The measure would have required that required water flow meters installed in the unconfined aquifer of Water Division 3 be certified by the state engineer. This water division is located in whole or in part in Conejos, Alamosa, Rio Grande, Mineral, Saguache and Costilla counties. It also would have required the state engineer to read the water flow meters monthly at the well owner's expense.
| Colorado Initiative 15 (1998)|
|Yes|| 292,977|| 23.83%|
Election results via: Colorado State Legislative Council, Ballot History
Text of measure
The language appeared on the ballot as:
|| An amendment to the Colorado Revised Statutes concerning the requirement for the installation of water flow meters on any nonexempt well in the unconfined aquifer of Water Division 3 (which is located in whole or in part in Conejos, Alamosa, Rio Grande, Mineral, Saguache, and Costilla counties) on or before April 1, 1999, and in connection therewith requiring that the water flow meters be certified by the state engineer; requiring the state engineer to read the water flow meters monthly at the well owner's expense; and directing the state engineer to prevent the operation of any well that does not have a functioning water flow meter.