Acts and Regulations

2002-13 - Water Classification

Schedule
Disposition versions

Full text
SCHEDULE A
 
Quality and Management Standards for, and Prohibited Activities in Relation to, the Water of Watercourse by Class
 
Column 1
Column 2
Column 3
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Column 5
Column 6
Name of Class
Aquatic Life Standards
Dissolved Oxygen Standards
Bacteria Standards
Standards for Trophic Status (apply only to lakes, ponds and mpoundments)
Prohibited activities
Outstanding Natural Waters
The aquatic life shall be as naturally occurring.
The concentration of dissolved oxygen shall be as naturally occurring.
The faecal coliform organisms and E. coli shall be as naturally occurring.
The trophic status shall be as naturally occurring.
Release of a contaminant; creation of a new mixing zone; release of a contaminant into a mixing zone; significant withdrawals.
AP
The aquatic life shall be as naturally occurring.
The concentration of dissolved oxygen shall be as naturally occurring.
E. coli shall be as naturally occurring; the total coliform organisms shall be as naturally occurring.
The trophic status shall be as naturally occurring.
AL
The aquatic life shall be as naturally occurring.
The concentration of dissolved oxygen for early life stages of cold water species shall be equal to or greater than 9.5 ppm and for other life stages shall be equal to or greater than 6.5 ppm; the concentration of dissolved oxygen for early life stages of warm water species shall be equal to or greater than 6.0 ppm and for other life stages shall be equal to or greater than 5.0 ppm; the dissolved oxygen content for estuarine waters shall be equal to or greater than 80% saturation.
The faecal coliform organisms and E. coli shall be as naturally occurring.
The trophic status shall be stable or naturally changing; the water shall be free of algae blooms that impair use as habitat for aquatic life, use for primary contact activity or use for secondary contact activity.
Direct discharge of a contaminant that is not being released, or any increase in the volume or concentration of a contaminant that is being directly discharged, on the commencement of the Regulation to which this Schedule is attached; creation of a new mixing zone.
A
The aquatic life shall be as naturally occurring.
The concentration of dissolved oxygen for early life stages of cold water species shall be equal to or greater than 9.5 ppm and for other life stages shall be equal to or greater than 6.5 ppm; the concentration of dissolved oxygen for early life stages of warm water species shall be equal to or greater than 6.0 ppm and for other life stages shall be equal to or greater than 5.0 ppm; the dissolved oxygen content for estuarine waters shall be equal to or greater than 80% saturation.
E. coli shall be as naturally occurring.
The trophic status shall be stable or naturally changing; the water shall be free of algae blooms that impair use as habitat for aquatic life, use for primary contact activity or use for secondary contact activity.
Creation of a new mixing zone; release of a contaminant into a mixing zone.
B
Releases shall not cause adverse impact to the aquatic community in that the receiving water shall be of sufficient quality to support all indigenous aquatic species without detrimental changes to the resident biological community.
The concentration of dissolved oxygen for early life stages of cold water species shall be equal to or greater than 9.5 ppm and for other life stages shall be equal to or greater than 6.5 ppm; the concentration of dissolved oxygen for early life stages of warm water species shall be equal to or greater than 6.0 ppm and for other life stages shall be equal to or greater than 5.0 ppm; the dissolved oxygen content for estuarine waters shall be equal to or greater than 80% saturation.
The faecal coliform organisms shall be less than 14 per 100 ml. for estuaries with identified shellfish beds, and E. coli shall be less than 200 per 100 ml for all other watercourses (geometric mean of a minimum of 5 samples in a 30 day period).
The trophic status shall be stable or naturally changing; the water shall be free of algae blooms that impair use as habitat for aquatic life, use for primary contact activity or use for secondary contact activity.
C
Releases that may cause some changes to the aquatic community are permitted if the receiving water is of sufficient quality to support indigenous fish species and maintain the structure and function of the resident biological community despite the releases.
The concentration of dissolved oxygen for early life stages of cold water species shall be equal to or greater than 9.5 ppm and for other life stages shall be equal to or greater than 6.5 ppm; the concentration of dissolved oxygen for early life stages of warm water species shall be equal to or greater than 6.0 ppm and for other life stages shall be equal to or greater than 5.0 ppm; the dissolved oxygen content for estuarine waters shall be equal to or greater than 80% saturation.
The faecal coliform organisms shall be less than 14 per 100 ml for estuaries with identified shellfish beds, and E. coli shall be less than 400 per 100 ml for all other watercourses (geometric mean of a minimum of 5 samples in a 30 day period).
The trophic status shall be stable or naturally changing; the water shall be free of algae blooms that impair use as habitat for aquatic life, use for primary contact activity or use for secondary contact activity.