EPL number Licensee ZOOLOGICAL PARKS BOARD OF NSW (trading as Taronga Conservation Society Australia)

The faulty ballasts compromised the UV treatment that sterilises the overflow from the buffer tank. [...] The 2 faulty ballasts on the UV system were unable to be replaced by internal electricians, on 19th June the Asset Operations Manager called and emailed the external equipment maintenance contractor requesting repair on the ballasts. [...] Date 10 July 2019 – Monitoring Point 4 18 July 2019 – Monitoring Point 2 sampled* Data obtained 18 July 2019 – Monitoring Point 4 25 July 2019 – Monitoring Point 2 by Licensee* Monitoring Frequency Pollutant Measurement Limit Unit Point 2 Monthly pH 7.99 6.5-8.5 - frequency TSS <5 50 mg/L BOD <2 20 mg/L 4 Monthly pH 8.03 6.5-8.5 - frequency TSS 9 20 mg/L BOD 2 15 mg/L Enterococci <1 40 CFU/100mL *. [...] Samples were taken separately on the 18th of July Date 09 August 2019 – Monitoring Point 4 07 August 2019 – Monitoring sampled* Point 2 Data obtained 16 August 2019 – Monitoring Point 4 14 August 2019 – Monitoring by Licensee* Point 2 Monitoring Frequency Pollutant Measurement Limit Unit Point 2 Monthly pH 7.87 6.5-8.5 - frequency TSS <5 50 mg/L BOD <2 20 mg/L 4 Monthly pH 7.20 6.5-8.5 - frequency. [...] Date sampled 03 September 2019 – Monitoring Point 2 & 4 Data obtained 19 September 2019 – Monitoring Point 2 & 4 by Licensee Monitoring Frequency Pollutant Measurement Limit Unit Point 2 Monthly pH 7.62 6.5-8.5 - frequency TSS <5 50 mg/L BOD <2 20 mg/L 4 Monthly pH 7.79 6.5-8.5 - frequency TSS 7 20 mg/L BOD 2 15 mg/L Enterococci <1 40 CFU/100mL Date sampled 03 October 2019 – Monitoring Point 2 & 4.