Final answer:
The Lead and Copper Rule requires monitoring for 7 indicators including pH, alkalinity, phosphate, temperature, turbidity, lead and copper monitoring, and sampling locations.
Step-by-step explanation:
The Lead and Copper Rule requires systems that exceed the lead/copper action level to monitor for the following 7 indicators:
- pH: Low pH can cause corrosion of plumbing materials, leading to higher levels of lead and copper in drinking water.
- Alkalinity: Low alkalinity can cause increased corrosion of plumbing materials, resulting in higher lead and copper levels.
- Phosphate: Phosphate can form a protective scale on plumbing surfaces, reducing the release of lead and copper into the water.
- Temperature: Higher water temperatures can increase the corrosion of plumbing materials and lead to greater levels of lead and copper.
- Turbidity: Turbidity can indicate the presence of particles in the water that can promote corrosion of plumbing materials.
- Lead and Copper Monitoring: Actual levels of lead and copper in the water are monitored to assess compliance with the action level.
- Sampling Locations: Specific locations in the distribution system are selected for water sampling to ensure representative monitoring.