The Power of Information

National Drinking Water Database


Long Beach Water Department Utilities - Seaview, WA

Serves 2,865 people

para-para DDD

para-para DDD is an insecticide similar to DDT, and also forms as a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
2 days
Tests ConductedNumber of individual tests done for this contaminant
2 tests

Testing Summary

ContaminantAverage/
Maximum
Result		Health Limit
Exceeded		Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
para-para DDDpara-para DDD is an insecticide similar to DDT, and also forms as a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.0 ppb
0 ppb		No
<0.01 ppb		Legal at any levelThis is the Federal Limit. State Limits may be lower.
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for para-para DDD

Health Based Limits for para-para DDD

StandardDescriptionLevel
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.<0.01 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.0.1 ppb-10 ppb

Testing Results

Testing DateAverage
Result		Samples taken that dayNumber of Non-DetectsRange of Results
2005-09-270 ppb110 ppb
2004-08-100 ppb110 ppb