Note- Below are short explanatory notes about the different SIPZ
zones. Please consult the actual regulations at the links above for
Coastal SIPZ- There are no regulations affecting owners in this zone. High chloride wells that fall inside a
Coastal SIPZ automatically generate new At-Risk and High-Risk zones. Owners living inside a
Coastal SIPZ are encouraged to use drought-tolerant landscaping and conserve water.
At Risk SIPZ- The regulations apply only to new home construction. Owners are required to enter into a well monitoring program
approved by the County. This is similar to the monitoring agreements that are required when the County issues a permit for an alternative onsite sewage disposal system. There may be a charge to cover the costs of the monitoring. The applicant is also required to install a flow meter and is encouraged to use drought-tolerant landscaping and conserve water.
High Risk SIPZ- The regulations are generally triggered by new home construction.
Building permit applicants will be required to conduct a hydrogeologic assessment to indicate that their water use will not degrade water quality in the aquifer. If such an assessment can prove that there would be no degradation, the applicant can use the well provided that they install a flow meter and submit a water conservation plan to Jefferson County. If such an assessment cannot be made, the applicant must use another water source for their building.
The High Risk SIPZ also expand the WS Department of Ecology's "sea-salt
water intrusion areas". New wells may be denied in this zone if
DOE determines the well would violate the state administrative code.