Reason Code for Milestone Types

For Milestones of types "System deemed optimized without Optimal Corrosion Control Treatment" (DEEM) and "System done with Optimal Corrosion Control Treatment" (DONE), you will see a Reason Code.

Reason Codes for DEEM are:

B1	Serving fewer than 50,000 (met action level*)
B3	Serving greater than 50,000 (met action level*)
WQP	Water Quality Parameters

Reason Codes for DONE are:

B1	Serving fewer than 50,000 (met action level*)
B3	Serving greater than 50,000 (met action level*)
LSLR	Lead Service Line Replacement
WQP	Water Quality Parameters

Action Level is the level of lead and copper which, if exceeded, triggers treatment or other requirements that a public water system must follow.