Perchlorate in LA Household Water: Understanding Public System Records and Treatment Options
What does government sampling say about perchlorate in the Parish Water Company system serving LA?
The EPA's public water system record for the Parish Water Company in Louisiana reports that from 2003 to 2005, 44 samples were tested for perchlorate. None showed perchlorate concentrations above the reporting level of 4.0 micrograms per liter. No health-based violations related to perchlorate have been recorded for this system. This means federal monitoring found no perchlorate at measurable levels above the reporting threshold in the public water supply during that period.
How do public water system records differ from private well testing for perchlorate?
Public water system records represent monitoring results for the water supply as treated or delivered to the community, covering many connections and sources combined. They do not capture variations that may exist at individual homes, such as those served by private wells. A private well owner must conduct separate, site-specific testing to know the perchlorate concentration in their water. Public system results provide a regional or system-wide snapshot, not a home-specific condition.
Why are aesthetic secondary standards distinct from health-based limits for perchlorate?
Perchlorate currently has no established federal maximum contaminant level (MCL), meaning there is no legally enforceable health-based limit. However, some secondary standards address aesthetic factors like taste or corrosivity that are unrelated to health risk. For perchlorate, the EPA's monitoring focuses on detection levels to gather occurrence data rather than enforce health limits. Thus, detections below reporting thresholds are not considered violations or unsafe conditions.
How does the Autotrol Perchlorate Filter address perchlorate in residential water?
The Autotrol Perchlorate Filter uses a specialized filtration system designed to reduce perchlorate concentrations in treated water. This technology works by selectively removing perchlorate ions through a controlled filtration process, helping improve water quality where perchlorate is present in measurable amounts. The system ships ready to configure for household use and treats water flowing through the filtration media without requiring external plumbing services.
Which household fixtures or uses are impacted first by perchlorate levels?
Perchlorate primarily affects water used for drinking and cooking since ingestion is the main exposure route of concern. Appliances such as refrigerators with water dispensers, ice makers, and kitchen faucets used for food preparation will benefit most immediately from perchlorate filtration. Bathing and laundry water are less likely to be affected in terms of perchlorate-related issues.
How will water at the tap change once the Autotrol Perchlorate Filter is in place?
After treatment, water delivered to the kitchen tap and other key points will have reduced perchlorate concentrations, assuming the source water contains measurable levels. This leads to improved water quality for drinking and cooking. The filter's operation does not introduce chemicals or additives and maintains water clarity and taste consistent with household expectations.
What test should I order to determine if perchlorate treatment is needed for my household water?
To confirm perchlorate levels in your specific household water, the recommended test is a certified laboratory analysis for perchlorate concentration. This test measures the perchlorate content directly in your tap or well water and determines if treatment is advisable. A result above the reporting level found in the public system record would indicate that a treatment system like the Autotrol Perchlorate Filter could be beneficial.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2003-12-09. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR1 monitoring (2001-2005) for PARISH WATER COMPANY (LA1033019), LA: 44 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level

