Alternate Surface Water Quality Standards
Site Specific Alternative Criteria
Site specific criteria replace the criteria applicable statewide in
cases where site specific information supports different numeric
criteria. Any SSAC must fully support and protect the designated use of
the waterbody. SSACs fall into two types: Type I and Type II. Type I
SSACs (Rule 62-302.800(1), FAC) are established to reflect natural
background conditions, such as lower dissolved oxygen levels than the
statewide default criteria. Type II SSACs (Rule 62-302.800(2), FAC) are
established for situations other than natural background conditions.
Both types of SSACs must still fully protect the designated use of the
water body. Examples of site specific criteria include the Everglades
phosphorus criterion (Rule 62-302.540, Florida Administrative Code) and
the Site Specific Alternative Criteria described in
Rule 62-302.800, FAC.
SSACs Under Development or Pending Final Approval
Pace Swamp Site Specific Alternative Criteria (SSAC) for pH
Lower Fenholloway River and Nearshore Waters Site
Specific Alternative Criteria
The Department has revoked the SSAC for dissolved oxygen
because it is no longer necessary due to recent
revisions to Florida’s dissolved oxygen criteria.
Final Order Revoking Site Specific Alternative Criteria
for Dissolved Oxygen.
Public Workshops (Downloads are in .zip format.)
Thomas Creek Site Specific Alternative Criteria (SSAC) for
A petition was submitted by Anheuser-Busch Brewery and Nutri-Turf
Operations seeking a SSAC for dissolved oxygen in Thomas Creek.
Thomas Creek is located in Duval and Nassau Counties, Florida.
Water Quality Standards Variances
Charlotte Harbor Water
Association (variance for acute toxicity)
Premier Chemicals (variance for acute toxicity)
City of Vero Beach Reverse Osmosis (variance for acute
Protection Area Dissolved Oxygen Site Specific Alternative Criteria
Technical Support Documents
Standards & Assessment
Florida Department of Environmental Protection
2600 Blair Stone Road - M.S. 6511
Tallahassee, FL 32399