Acid Sulfate Soils Management Plan · OPW19/0205

PROCEDURE C
Monitoring of Water Quality


C6 (b) Groundwater Performance Indicators
                                  Baseline                      Site Specific Criteria
    Parameters*        Units      Performance
                                  Range

                                                        Baseline - 0.3 pH unit change below
                                      Yet to be          the lower baseline range and an
    pH                 pH
                                     determined                   upper limit of 8.5


    Aluminium                         Yet to be
                       mg/l                                 +/- 10% of baseline range
    (dissolved)                      determined
    Aluminium                         Yet to be
                       mg/l                                 +/- 10% of baseline range
    (total)                          determined
    Iron                              Yet to be
                       mg/l                                 +/- 10% of baseline range
    (dissolved)                      determined
                                      Yet to be
    Iron (total)       mg/l                                 +/- 10% of baseline range
                                     determined
* Note that total acidity/alkalinity & chloride/sulfate ratio should also be monitored, but no performance limits are set


C7.       CONTINGENCY MEASURES
All surface waters (any waters collected in excavations) and precipitates that cannot be contained and
treated for discharge off site, are to be removed and disposed of through trade waste or another lawful
method.

C8.       MONITORING & REPORTING
The Site Supervisor shall be responsible for ensuring all on-site monitoring listed in section C5 is conducted
at the required frequency.

The Site Supervisor shall maintain a register of all on-site testing results and a record of inspections.

A summary report of all test results and inspections shall be compiled by the Site Supervisor each week and
submitted to the Project Manager.

The Site Supervisor shall inform the Project Manager of non-compliance upon detection. The Project
Manager shall inform Council of such non-compliances as soon as practicable and instigate an assessment
of the impact.




April 2019
J000799-003-R-Rev0 – Procedure C                             3/3