More information on hazard ratings.
Inspection Information:
| Facility Type: | WS1A |
| Inspection type: | Routine |
| Inspection date: | March 28, 2022 |
| Follow-up Required: | Yes |
This facility was given a moderate hazard rating.
More information on hazard ratings.
Violations:
A summary of the violations found during the inspection are listed below.
| Code | Description / Observation / Corrective Action |
| 313 | Inadequate treatment Observation: Levels of trihalomethanes (THMs) and haloacetic acids (HAAs) in the water exceed the maximum acceptable concentrations given in Health Canada's Guidelines for Canadian Drinking Water Quality. The water supplier has been measuring the levels of THMs and HAAs every three months. Corrective Action: The water supplier will need to continue to measure the levels of THMs and HAAs every three months. As the running annual average of quarterly samples shows that the levels of THMs and HAAs exceed maximum acceptable concentrations, the water supplier will need to continue to make these results publically available, as well as providing users with information on how they can reduce their exposure to THMs and HAAs. In the long-term, the implementation of effective water treatment will ultimately address the elevated THM and HAA levels.The water supplier will need to continue to measure the levels of THMs and HAAs every three months |
| 313 | Inadequate treatment Observation: Water chemistry data indicates that the water is corrosive, and so on private properties that have older plumbing components, leaching of lead and/or copper into drinking water may occur. The water supplier has provided information on lead in drinking water to users in the past, and information is posted on the City of Prince Rupert’s Drinking Water website. The water supplier has also conducted a Household Water Sampling Program to collect data on lead and copper levels from a representative sample of over 60 private residences. The results from the sampling show that centralized corrosion control is appropriate. A Random Daytime Sampling program was recently completed with results forth-coming. Corrective Action: The water supplier will need to communicate the findings of the Household Water Sampling Program to water users once the report has been finalized. Water treatment to reduce the corrosion of lead-containing materials at residential sites will need to be proposed an implemented (in accordance with the timeline in the operating permit conditions). |
| 313 | Inadequate treatment Observation: Provincial surface water treatment objectives are not being met. The present water treatment cannot achieve 3-log inactivation of Cryptosporidium (although disinfection to inactivate Giardia is being preformed). Also, there is currently only one treatment process (chlorination) and surface water sources require two independent treatment processes. Monitoring data also shows that turbidity sometimes exceeds the objective of one nephelometric turbidity unity (NTU) or less. During the last 12 months (Mar 2021- Mar 2022), 4 water quality advisories and 1 boil water notice have been issued because of elevated turbidity into the distribution system. Operating permit timeline conditions for the mandatory submission of the construction permit application will be revised to June 2023 due to delays in treatment plant design proposal. This permit condition extension is granted under the agreement that the City of Prince Rupert operations will create and provide a clear and specific timeline of events, as they perceive them at this time, to the Environmental Health Officer for review and acceptance. Corrective Action: The water supplier must continue to monitor the source water for Giardia and Cryptosporidium at the frequency specified in the relevant operating permit condition. The water supplier will also need to design and implement effective water treatment that meets provincial surface water treatment objectives in accordance with the timeline in the operating permit conditions. Supply timeline of planned events, specific to infrastructure treatment development, to the Environmental Health Officer for review and acceptance by May 01, 2022. |