The slope of a sewer line can be measured by
Under the Lead and Copper Rule, how would a system serving fewer than 100 people that only collects 5 samples per monitoring period determine the 90th percentile of lead?
What additional requirements are required for a surface water treatment system to reduce the number of TTHM and HAA5 sample in addition to having monitored for at least one year?
A system using chlorine dioxide may reduce sampling frequency from within the distribution system from one 3 sample set per month to __ after one complete year of monitoring where no individual samples exceeded the chlorite MCL.
If the continuous monitoring of the residual disinfection concentration entering the distribution system has failed and needs to be repaired, how often must grab samples must be taken until the continuous monitoring is back on-line?
The Ground Water Rule requires groundwater systems found to be at risk for fecal contamination, are required to provide a ___ inactivation of viruses.
A treatment technique violation will be given with
The public must be notified of a Tier 2 violation when?
Which of the following would be a Tier 3 violation?
A system has a chlorine dioxide MRDL violation. How must customers be notified?
