Learn to Hunt
Report Your Harvest
Current Fishing Report
Taking Kids Fishing
Iowa's natural resources plates include the state bird and flower, pheasant, eagle, buck and a Brook trout. Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Experience Iowa's natural beauty and all the fun our state parks offer. Make your online reservation for state park cabins, camping sites, shelters and lodges.
Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Iowa DNR Customer Service
Mon - Fri, 8:00am - 4:30pm CST
Submit Online Inquiry
Information / Records Requests
Contact Information by County
The term "Source Water" is used to define drinking water in its original environment, either as surface water (rivers, streams, reservoirs, lakes) or as groundwater (aquifers), before being withdrawn, treated, and distributed by a water system. Source Water Protection (SWP) is the act of preventing contaminants from entering public drinking water sources.
The quality of the source water can be influenced by both natural and human activities. The concept of Source Water Protection (SWP) is to manage the areas through which water travels and the activities that occur on the land, in order to protect the quality of the resource. These protection efforts save the community money through improved water quality requiring less treatment, longer life cycle for a well, and less likelihood of having to seek an alternate source or replace the well due to contamination.
Surface water is more susceptible to contamination incidents from natural or man-made causes, such as a flood or a chemical spill, but it also recovers much more quickly than does groundwater. Groundwater is much less susceptible to
contamination, but when that happens, natural recovery is very slow to occur. Source Water Protection includes both groundwater (wellhead) protection and surface water protection.
The Iowa DNR's SWP Program is a voluntary program, although there are numerous benefits for a water system to protect its water supply. There are three components to the Source Water Protection Program.
The development of a good SWP Plan doesn't require any assistance or involvement of an engineer or consultant. A system may wish to contact an outside entity for assistance. The Conservation Districts of Iowa and the Iowa Rural Water Association provide experienced source water consultation and assistance for developing the SWP Plan, at no charge to the public water supply.
SWP Program Coordinator: Steve Hopkins
SWP Technical Support/Database Administrator: Matt Dvorak
Highly susceptible: less than 25 feet confining layer thicknessSusceptible: 25 to 50 feet confining layer thicknessSlightly susceptible: 51 to 100 feet confining layer thicknessLow susceptibility: more than 100 feet confining layer thickness
Iowa's Geology and Aquifers
Examples of Affidavit and Ordinances
Public Water Supply Information
Geographic Information System (GIS) Resources
Additional GIS Resources