Current Water Levels

View current rainfall and lake storage levels on our new water information page.


PID resources to help you:

Do you have questions about the water you drink and use? You don't have to go to a huge utility company to get the answers you need -- Unlike privately-owned utility companies, PID makes all of its decision right here in our community.


PID actively seeks citizen input and has a variety of free resources to help you. For more information, call 530-877-4971 or go to

Report Definitions


RAL (Regulatory Action Level): Concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.


μS/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 appearance of 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.

Lead and Copper Info

Lead and copper and your drinking water


Federal regulations require Paradise Irrigation District to sample for lead and copper in your drinking water and then the state reviews those samples for compliance. Based on the sampling results, there is no reason for concern. The samples show no lead and only minimal results for copper—and those levels are well below the action level for concern. However, if you are concerned about lead and/or copper in your water, you may wish to have your water tested. Information on lead and copper in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or a Quick Reference Guide here, or call the district at 530/877-4971.


New regulations require the district to test for lead in the drinking water at all Paradise schools if requested.

Taste & Odor

Does your water smell or taste a bit "off" sometimes?


As you turn on the tap in the late fall and early winter months you might notice a bit of a musty odor or an earthy "flavor" to your usually sparkling glass of PID water.


While water quality tests tell us our water is safe to drink and meets all EPA standards, we're not any happier than you are with the water that doesn't meet our usual high flavor standards.


Two compounds released from soil and algae, methylisoborneol (MIB) and Geosmin, can be detected by humans at levels of less than 10 parts per trillion (one part per trillion would compare to one inch in 16 million miles).


MIB is most commonly found at the bottom layers of lakes; Geosmin is the same substance that gives soil its "dirt" smell. Together, these two lend a temporary and undesirable "bouquet" to our PID water when levels are high in the water we use from Magalia Reservoir. Paradise Lake, because it's deeper, hasn't so many issues because the water is colder and therefore "fresher" in odor and taste.


When the seasonal rain begins in late fall, the District goes to work at refilling our reservoirs. It becomes a complex balancing act of slowing the discharge from Paradise Lake (so it can refill for the next year) and using a blend of water from the lake as well as Magalia Reservoir to supply the treatment plant - and our users.


When we have an early rainstorm, the runoff water entering the bypass pipeline overwhelms the amount of water and changes the chemistry. State health standards force us to use water from the reservoir (which remains treatable) but there are taste and odor issues even though the water is safe to drink and use.

Help protect our water

Tips for protecting our source water:


Protection of drinking water is everyone's responsibility. You can help protect your community's drinking water source in several ways:


~ Eliminate excess use of lawn and garden fertilizers and pesticides - they contain hazardous chemicals that can reach your drinking water source.


~ Pick up after your pets.


~ Properly maintain your septic system to reduce leaching to water sources.


~ Dispose of chemicals properly; take used motor oil to a recycling center.


~ Volunteer with a watershed or wellhead protection organization. Use US EPA's Adopt Your Watershed to locate groups in your community, or visit the watershed Information Network's How to Start a Watershed Team.

Consumer Confidence Report regarding Annual Water Quality

Water testing performed in 2016, or earlier


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.


icon Print Version - 2017 Water Quality Report



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Learn about our community’s great water quality!


At Paradise Irrigation District we're committed to delivering the best-quality drinking water possible.  We remain vigilant in meeting the challenges of new regulations, water source protection and security, water conservation and community outreach and education while continuing to serve the needs of our water users.


We're proud to present our annual "consumer confidence" water quality report covering all testing performed between Jan. 1 and Dec. 31, 2016, 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.


Thank you for allowing us to continue providing you and your family with high quality drinking water.


Please share your thoughts with us on the information in this report. And, if you have questions or concerns, we're here to help.  Call (530) 877-4971.

Sampling Results


Paradise Irrigation District has taken thousands of regulated and unregulated water samples during the past years to determine the presence of any radioactive, biological, inorganic, volatile and synthetic organic contaminants and monitor the treatment process. The tables below show only those contaminants that were detected in the water; some that were not detected are listed because our customers may be interested in seeing the results. The State Water Resources Control Board (State Board) requires us to monitor for certain substances less than once per year because the concentrations of these substances do not change significantly. In these cases, the most recent sample data are included, along with the year in which the sample was taken.




Surface Water Supply Groundwater Supply  











Chromium (Total)
50 2013 ND ND 2014 3.4 3.4 Erosion of natural deposits.
Chromium Hexavalent
10 2015 0.11 0.11 2014 3.4 3.4 Oxidized Chromium.
Nitrate (as N) (ppm) 10 2016 ND ND 2016 0.23 0.23 Runoff from fertilizer use; leaking from septic tanks or systems.
Fluoride (ppm) 2 2013 ND ND 2014 ND ND Natural occurring substance.
(prior to treatment)
0 2016 ND ND NA NA NA Human and animal fecal waste.
(prior to treatment)
0 2016 ND ND NA NA NA Human and animal fecal waste.
Total Coliforms 5% or 2 samples 2016 1.25% 0%-2.5%  2016 ND ND Naturally present in the environment.

No more thank 5% of all samples taken during a single month may be positive for total coliform


Turbidity (NTU)
(prior to treatment)
~ 2016 4.7 0.40-9 2016 0.18 0.18 Soil runoff.
Turbidity (NTU) (TT) (treated water) 0.2 2016 0.06 0.03-0.08  NA NA NA Soil runoff.


Turbidity is a measurement of the cloudiness of the water. Turbidity measurement is a good indicator of the effectiveness of the filtration system. PID’s permit with State Drinking Division requires PID to deliver water with no more than 0.2 NTU.


Radium 228 (pCi/L) 5 2008 0.55 0.55 2008 0.8 0.8 Erosion of natural deposits.
Chlorine, Free Residual as Cl2
(ppm) (TT)
4 2016 0.8 0.2-1.4 NA NA NA Water additive used to control microbes.
~ 2016 3.2 2.9-3.6 NA NA NA Drinking water disinfection.
Chloroform (Trichloromethane) (ppb) ~ 2016 34.8 29-44 NA NA NA Drinking water disinfection.
Trihalomethanes, Total (ppb) 80 2016 40.5 33-48 NA NA NA Drinking water disinfection.
Dichloroacetic Acid (DCAA) (ppb) ~ 2016 12.3 6.8-20 NA NA NA Drinking water disinfection.
Trichloroacetic Acid (TCAA) (ppb) ~ 2016 19.8 14-28 NA NA NA Drinking water disinfection.
Haloacetic Acids, Total (ppb) 60 2016 33.5 24-43 NA NA NA Drinking water disinfection.
Total Organic Carbon
(prior to treatment)
~ 2016 1.2 1.1-1.3 NA NA NA Decay of natural organic matter.




Every three years PID is required to sample at the customers’ faucets for lead and copper. This monitoring ensures our water is not too corrosive and does not leach unsafe levels of these metals into your drinking water. Compliance measurements are from the 90th percentile (the level measured at 90% of homes sampled). See “Corrosivity” section.

Copper (ppm at the 90th percentile)   2014 No 1.3 0.3 0.26 0/30 Internal corrosion of household plumbing.
Lead (ppb at the 90th percentile)   2014 No 15 0.2 ND 0/30 Internal corrosion of household plumbing.




Surface Water Supply Groundwater Supply  










Chloride (ppm) 500 2011 2.5 2.5 2014 1.3 1.3 Natural occurring substance.
Hardness (ppm) ~ 2016 28 28 2014 76 76 Naturally occurring substance.
Total Dissolved Solids (ppm) 500 2016 43 43 2014 150 150 Naturally occurring substance.
Specific Conductance (uS/cm) 1600 2016 77 77 2014 160 160 A measurement of water's conductance.
Langelier Saturation Index * Non-Corrosive 2016 -1.7 -1.7 NA NA NA Indicator of corrosiveness of water.
Aggressive Index Non-Corrosive 2016 10 10 NA NA NA Indicator of corrosiveness in water.
Zinc (ppm)(TT) 5 2016 0.5 0.3-0.6  2014 ND ND Water additive used to control corrosion.
Orthophosphate (ppm) (TT) ~ 2016 1.4 1.2-1.6  NA NA NA Water additive used to control corrosion.


* The Langelier Saturation and Aggressive Indices and Specific Conductance are tests to measure the corrosivity of water. The results indicate that PID water is mildly corrosive. Zinc orthophosphate (ZOP) is added at the treatment plant to reduce the corrosiveness of the water on metallic pipes.



Surface Water Supply Groundwater Supply  









Alkalinity as CaC03 (ppm) 2016 32 32 2014 81 81 Natural occurring substance.
Bicarbonate Alkalinity (ppm) 2016 39 39 2014 99 99 Natural occurring substance.
Calcium (ppm) 2016 5.8 5.8 2014 15 15 Natural occurring substance.
Magnesium (ppm) 2016 3.4 3.4 2014 9.3 9.3 Natural occurring substance.
Sodium (ppm) 2011 1.9 1.9 2014 5.1 5.1 Natural occurring substance.
Chlorate (ppb) 2015 260 120-400 NA NA NA Sodium Hypochlorite used for disinfection.
pH 2016 7.3 7.2-7.4  2016 7.3 7.3 Slightly basic water.



This Consumer Confidence Report (CCR) reflects changes in drinking water regulatory requirements during 2016. All water systems are required to comply with the state Total Coliform Rule. Beginning April 1, 2016, all water systems are also required to comply with the federal Revised Total Coliform Rule. The new federal rule maintains the purpose to protect public health by ensuring the integrity of the drinking water distribution system and monitoring for the presence of microbials (e.g., total coliform and E. coli bacteria). The U.S. EPA anticipates greater public health protection as the new rule requires water systems that are vulnerable to microbial contamination to identify and fix problems. Water systems that exceed a specified frequency of total coliform occurrences are required to conduct an assessment to determine if any sanitary defects exist. If found, these must be corrected by the water system.

Source of Supply



Customers of the Paradise Irrigation District are fortunate because we enjoy a high-quality water supply from the upper portion of the Little Butte Creek Watershed (about 7,400 acres). Water which falls within this watershed (mostly via rain, though a little from snow) flows into either Paradise lake and/or Magalia Reservoir. These two reservoirs are owned and operated by the District for the purpose of storing water for the residents of the District.


The PID treatment plant draws water primarily from Paradise Lake throughout the year, and secondarily from Magalia Reservoir for short periods throughout the year when needed; together they hold a total of 12,293 acre-feet of water. Runoff is collected over 11.2 square miles of watershed located primarily north of Paradise Lake and Magalia Reservoir. This watershed is heavily forested and sparsely populated, which contributes to the high-quality water we serve. PID's water treatment plant provides average flows in the winter and summer of 3 million gallons per day (MGD) and 8 MGD respectively.


The District drilled and developed a ground water source at the D Tank site. This well produces up to 450 gallons per minute (gpm) and is used as a drought management and emergency source (e.g., large pipeline break). This source was used 23 days in December 2016 and pumped 11.71 million gallons of water. Water quality testing has been done to qualify it as an approved source.

Source Water Assessment

Source Water Assessment available at office


streamPID’s 2016 Source Water Assessment Plan is available at our office for your review. This is an assessment of the area of influence around our listed “raw” water sources through which contaminants, if present, could reach our source water. It also includes an inventory of potential sources of contamination within the area and a determination of the water supply’s susceptibility to contamination by the identified potential sources.


Ground Water Supply (Well at D Tank): High-density septic systems and automobile repair shops.


Surface Water Supply (Little Butte Creek Watershed): High-density septic systems and historic mining operations.


A copy of the complete assessment may also be viewed at State Water Resources Control Board (State Board) Valley District Office, 364 Knollcrest Drive, Suite 101, Redding, CA 96002, Attention: Reese Crenshaw, (530) 224-4861, or Paradise Irrigation District Office, 6332 Clark Road, Paradise, CA 95969, (530) 877-4971.

Substances that could be in drinking water…

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radio-active material, and can pick up substances resulting from the presence of plants,  animals or from human activity.


To make sure our tap water is safe to drink, the U.S. Environmental Protection Agency (US EPA) and the State Water Resources Control Board (State Board) prescribe regulations limiting the amount of certain contaminants in water provided by public water systems. State Board regulations also establish limits for contaminants in bottled water that must provide the same protection for public health. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. The U.S. Food and Drug Administration regulations and California law also establish limits for contaminants in bottled water that provide the same protection for public health. Additional information on bottled water is available on the California Department of Public Health website (


faucetContaminants that may be present in source water include:


Microbial Contaminants, such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife;


Inorganic Contaminants, such as salts and metals, that can be naturally occurring or can result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming;


Pesticides and Herbicides, that may come from a variety of sources, such as agriculture, urban stormwater runoff, and residential uses;


Organic Chemical Contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production and which can also come from gas stations, urban stormwater runoff, agricultural applications, and septic systems;


Radioactive Contaminants, that can be naturally occurring or can be the result of oil and gas production and mining activities.


More information about contaminants and potential health effects can be obtained by calling the U.S. EPA’s Safe Drinking Water Hotline at (800) 426-4791.

Health information for medically-vulnerable residents of our community

Some people may be more vulnerable to contaminants in drinking water than the general popu-lation. Immunocompromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants may be particularly at risk from infections. These people should seek advice about drinking water from their health care providers.


The US EPA/CDC (Centers for Disease Control and Prevention) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline at (800) 426-4791 or