Water Quality Advisory Updated May 20, 2020: Here's what residents should know.

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Learn more about this annual water quality report: definitions of terms, instructions for spanish speaking customers, printable versions of this report.

 

Este informe contiene información muy importante acerca de su agua portable. Haga que alguien lo traduzca para usted, o hable con alquient que lo entienda.

  pdf Annual Consumer Confidence Report (500 KB) (print version)

Introduction

This annual “consumer confidence” water quality report covers all Paradise Irrigation District testing performed between Jan. 1 and Dec. 31, 2019, or earlier. The State Water Board allows certain chemicals to be monitored less than on a yearly basis because the concentrations of the substances are not expected to change significantly. In these cases, the most recent sample data are included, along with the year in which the sample was taken. Both “regulated” and “unregulated” contaminants are tested for; this report provides results only for contaminant’s detected in PID’s system—tests with non-detected (ND) results are not listed.

For information, contact Bill Taylor at (530) 877-4971 or visit PID at 6332 Clark Road, Paradise; we are open from 9 am to 4 pm, Monday-Friday.

Definitions used in this report:

RAL (Regulatory Action Level): Concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
uS/cm (microsiemens per centimeter): A unit expressing the amount of electrical conductivity of a solution.

MCL (Maximum Contaminant Level): The highest level of a contaminant that is allowed in drinking water. Primary (health-related) MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible. Secondary MCLs (SMCLs) are set to protect the odor, taste and aesthetic appearance and use of the drinking water.

MCLG (Maximum Contaminant Level Goal): The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs are set by the USEPA.

MFL (million fibers per liter): A measure of the presence of asbestos fibers that are longer than 10 micrometers.

MRDL (Maximum Residual Disinfectant Level): The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

MRDLG (Maximum Residual Disinfectant Level Goal): The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.

NA: Not applicable.

ND (Not detected): The substance was not found by laboratory analysis.
NS: No standard.

NTU (Nephelometric Turbidity Units): Measurement of the clarity/cloudiness—or turbidity—of water. Turbidity in excess of 5 NTU is just noticeable to the average person.

PDWS (Primary Drinking Water Standard): MCLs and MRDLs for contaminants that affect health, along with their monitoring and reporting requirements and water treatment requirements.

PHG (Public Health Goal): The level of a contaminant in drinking water below which there is no known or expected risk to health. PHGs are set by the California EPA.

TT (Treatment Technique): A required process intended to reduce the level of a contaminant in drinking water.

ppm (parts per million): One part substance per million parts water (or milligrams per liter). Imagine one ping-pong ball in an Olympic-sized swimming pool.

ppb (parts per billion): One part substance per billion parts water (or micrograms per liter). Imagine one ping pong ball in 1,000 Olympic-sized swimming pools.

pCi/L (picocurries per liter): A measurement of radioactivity.

 

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