Table E2: Suitability for Recreation Grade Matrix
| Susceptibility to faecal influence | Microbiological Assessment CategoryIndicator
counts (as percentiles – refer Table E1) |
Exceptional circumstances *** | |||
|---|---|---|---|---|---|
| A =< 130 E. coli/ 100 mL |
B 131–260 E. coli/ 100 mL |
C 261–550 E. coli/ 100 mL |
D >550 E. coli/ 100 mL |
||
| Sanitary Inspection Category: Very Low | Very Good | Very Good | Follow Up** | Follow Up** | |
| Sanitary Inspection Category: Low | Very Good | Good | Fair | Follow Up** | |
| Sanitary Inspection Category: Moderate | Follow Up* | Good | Fair | Poor | |
| Sanitary Inspection Category: High | Follow Up* | Follow Up* | Poor | Very Poor | |
| Sanitary Inspection Category: Very High | Follow Up* | Follow Up* | Follow Up* | Very Poor | |
| Exceptional circumstances | |||||
Notes
- *
- Indicates unexpected results requiring investigation (reassess SIC and MAC).
- **
- Implies non-sewage sources of indicators, and this should be verified.
- ***
- Exceptional circumstances: relate to known periods of higher risk for a graded beach, such as during a sewer rupture or an outbreak of a potentially waterborne pathogen in the community of the recreational area catchment. Under such circumstances a grading would not apply until the episode has abated.
(For example: if MAC = C and SIC = Moderate, then Suitability for Recreation Grade = Fair.)
