Our low water index has four stages:The RVCA issues water conditions statements to inform residents, municipalities and other stakeholders of changing water levels across the watershed.
A green gauge means conditions are normal. No low flow or drought conditions exist.
This category reflects concern.
80% to 60% of long-term average precipitation for 540 day and/or 90 day precipitation totals and/or 7-day average streamflows less than the 5 year return period low flow.
This category suggests a potentially serious problem is pending.
60% to 40% of long-term average precipitation for 540, 90 and/or 30 day precipitation totals and/or 7-day average streamflows less than the 10 year return period low flow.
This category indicates a failure of the water supply to meet demand.
Less than 40% of long-term average precipitation for 540, 90 and/or 30 day precipitation totals and/or 7-day average streamflows less than the 10 year return period low flow.
Click here for the RVCA's Watershed Conditions Statements.