Annual Water Quality Report for 2015
Providing safe drinking water to our customers is the primary goal of the Corbett Water District. Samples in this report were taken between January 1st, 2015 and December 31st, 2015; unless
This report has been published to comply with the requirements of the Safe Drinking Water Act.
Water utilities must provide water quality information to its customers at least once a year. In this report you will find results of water quality tests and other useful information on water quality issues. For more information, please contact the District office at 503.695.2284 or email email@example.com. The general public may comment on water quality or other issues regarding the Corbett Water District during the monthly board meetings, held every 3rd Tuesday of the month at the Corbett Fire Hall at 6:30 p.m., unless otherwise noted.
Meeting agendas are posted on our website under the "Meeting Agendas & Minutes" tab.
Corbett Water District's Lead & Copper Program
It’s estimated fewer than 10 percent of schools in Oregon are required to monitor for lead and copper in water. Those are schools, mostly in rural areas, that have their own water supply.
The lead and copper results for Corbett Water District latest results were well below the action level set by the Environment Protection Agency (EPA). “Our low lead and copper results are a direct response of our corrosion control program that we have been doing very successfully at the treatment plant for decades” said District Manager, James Jans. The Corbett Water District’s lead and copper sampling have always been conducted at residential homes per EPA guidelines. The main source of lead in drinking water comes from plumbing in certain homes and buildings, and very little of it comes from water mains and pipes belonging to public utilities.
All of our Corbett customers have a right to know what is in their water and a key to that is transparency in public notifications. Corbett Water District must report all tests for lead and copper at the tap to the Oregon Health Authority. OHA then posts that information online in real time for the public, including whether or not the EPA lead action level was exceeded.
The Oregon Health Authority requires Corbett Water District to take corrective actions to reduce the lead or copper in the system if we exceed the EPA action level, and also do public education to the community at large. In the meantime, we will continue to serve our customers the best quality water possible at the lowest feasible rate.
Where is the source and how is it treated?
The Corbett Water District has water rights to both the North Fork and South Fork of Gordon Creek. They are located within the Gordon Creek/Lower Sandy River Watershed. The intakes are located on Larch Mountain and have a watershed surface area of approximately 6 square miles. Water is piped from the intakes to the treatment plant located off of Larch Mountain Road.
The treatment techniques used are based upon the Enhanced Long Term Surface Water Treatment Rule, which was created by the EPA. The Corbett Water District filters the water using slow sand filtration, and then it is disinfected with chlorine, which ensures that harmful bacteria and organisms in the water have been killed, and the water is safe to drink. Soda ash is also added into the water to raise the pH and alkalinity level, which reduces the amount of corrosion in plumbing. Corrosion in plumbing can result in increased levels of lead and copper in the water. While the Corbett Water District does not use piping that contains lead, some older homes still have plumbing which may contain lead. We monitor these levels in accordance to EPA and Department of Human Services guidelines. The treated water is distributed to our 1,083 customers for use. Drinking water is stored in 5 reservoirs with a combined capacity of over 1.8 million gallons. They are located around the district and provide an emergency water supply, as well as water for fire protection. The Corbett Water District Board of Commissioners and its staff continually work to ensure its customers receive reliable, safe and clean drinking water.
Notes to Immuno-Compromised Individuals
Some people may be more vulnerable to contaminants in drinking water than the general population. Immune-compromised 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 can be particularly at risk from infections. These people should seek advice about their drinking water from their health care providers. The Federal Environmental Protection Agency/Centers for Disease Control guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the EPA Safe Drinking Water Hotline (1-800-426-4791).
Treatment Plant Surcharge Continues While Gathering Information for a Well Site
The District had to switch from South Fork over to North Fork sooner than expected due to the warmer weather that we had during the month of April. We switched earlier last year than expected and watched our consumption during the last year’s drought situation. Even with the large amount of rain we had during the winter we still might run into a drought situation again this summer. The Board of Commissioners felt that with all the issues the District is currently faced with, the filter pond 1b project should be delayed and the District should focus on a backup water source. The Board cancelled all bids for the Filter Pond 1b project before the bid opening date. The surcharge that has been collected to date amounted to approximately $82,000 which has been applied to permits, design, application fees and some material that so far has totaled $104,000 for the project. We will continue to collect the surcharge during the 2016-17 fiscal year, and go out to bid for a larger project during the 2016-2017 fiscal year. The existing ponds are old and outdated but are still currently operational. A backup water source may take a couple of years, but we need to get the paperwork started.
The original filter pond project from 2004 upgraded filter pond #2 to a concrete basin and also built a one million gallon reservoir. We financed these projects through a $2.1 million loan at a 3.5% interest rate. Yearly payments of approximately $138,000 are being made until the year 2025. The Board of Commissioners, Water District management, and PACE Engineers decided upon a three part plan to replace Filter Pond #1 without incurring additional debt, now with a slight delay. This way we can start the ground water permit process and then continue with the filter pond project.
Source Water Assessment
The 1966 Amendments to the Safe Drinking Water Act require that all states conduct Source Water Assessments for public water systems within their boundaries. The assessments consist of (1) identification of the Drinking Water Protection Area, i.e. the area at the surface that directly supplies our North Fork and South Fork streams, (2) identification of potential sources of pollution within the Drinking Water Protection Area, and (3) determining the susceptibility or relative risk to the streams from those sources. The purpose of the assessment is to provide water systems with the information they need to develop a strategy to protect their drinking water resource if they choose. The respective Drinking Water Programs of the Department of Human Services and Environmental Quality have completed the assessment for our system. A copy of the report is on file at the Corbett Water District office and is also available online at: http://www.deq.state.or.us/wq/dwp/docs/swasummary/pws00359.pdf
On top of accepting cash, checks, money orders, and credit cards, the District also accepts online payments. The District has been partnered with BlueFin, who is associated with our utility billing software, for online payments. Please visit our website, www.corbettwaterdistrict.com, click on the payments tab, and follow the link to the online payments screen. Through this site you can pay your bill online, view your payment history, update your contact information and have the ability to view your water use history.
Important information about your drinking water -
Monitoring Requirements for Corbett Water District
Our water system did not violate any water standards over the past year. As our customers, you have a right to know if we were to have a monitoring requirement not being met and what we did to correct these situations. We are required to monitor your drinking water for specific contaminants on a regular basis. Results of regular monitoring are an indicator of whether or not our drinking water meets health standards.
The District’s surface water undergo testing for the following contaminants, which were not detected except as noted in the table:
Synthetic Organic Chemicals, including pesticides.
Volatile Organic Chemicals, including the disinfection byproducts in table.
What should I do?
There is nothing you need to do at this time.
What’s Not In Our Water?
Coliform bacteria: During 2014, 42 samples were taken during monthly sampling of the distribution system for coliform bacteria testing. All were negative for Total Coliforms (naturally present in the environment) and E.coli (from human and animal fecal waste).
Information from the EPA
The sources of our nation’s drinking water include surface sources, such as rivers, streams, lakes, reservoirs; and groundwater sources, or wells. As water moves through the ground or over surfaces, it dissolves naturally occurring minerals and in some cases radioactive material. Water can also pick up substances from the presence of human or animal activity.
Contaminants that may be present in drinking water include:
-Microbial Contaminants such as viruses and bacteria which may come from sewage treatment
plants, septic systems, agricultural livestock operations, and wildlife.
-Inorganic Contaminants, such as salts and metals, which can be naturally-occurring or result
from storm water runoff, industrial or domestic wastewater discharges, oil and gas
production, mining or farming.
-Pesticides and Herbicides, which may come from a variety of sources such as agriculture,
urban storm water 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 storm water runoff, and septic systems.
-Radioactive Contaminants, which can be naturally occurring or be the result of oil and gas
production and mining activities.
-Drinking water, including bottled water, may be reasonably expected to contain at least small
amounts of some contaminants. The presence of contaminants does not necessarily indicate
that water poses a health risk.
More information about contaminants and potential health effects can be obtained by calling the EPA’s Safe Drinking Water Hotline (1-800-426-4791).
Water Quality Monitoring Results
-Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below which there is no know or expected risk to health. MCLGs allow for a margin of safety.
-Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in
MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
-Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment
requirements which a water system must follow.
-Treatment Technique (TT): A required process intended to reduce the level of a contaminant in
-NTU: Nephelometric Turbidity Units
-ppm: Parts per million
-ND: Not detected
Contaminant Unit MCL MCLG Detected Level Range Major Sources Violation? Disinfection By-Products
TTHM (Total ppb 80 0 0.0431 (avg.) By-product of drinking No Trihalomethanes)1 water chlorination
HAA5 (Total ppb 60 0 0.0510 (avg.) By-product of drinking No Haloacetic Acid) water chlorination
Total Coliform Absent Presence of 0 0 0 Naturally present No
(positive samples/ coliform bateria in the environment
month) in >5% of monthly samples
Fecal Coliform/ Absent Routine and repeat 0 0 0 Human & animal No
E. Colisample samples are total coliform
(positive samples/ positive & one is also fecal
month) coliform positive
Nitrate ppm 10.0 0 ND N/A No
Turbidity NTU TT n/a 0.026 to Soil Runoff No
1: Compliance is determined by meeting the maximum level of TTHMs and HAA5s over a running 12 month average of sample results. The range is determined by individual tests. TTHMs and HAA5s are potential carcinogens and may cause liver, spleen, kidney and central nervous system damage. The detected level equals the average for disinfection by-products for the year.
2: Turbidity is a good measurement of the cloudiness of the water caused solids, particles, or pollutants. Turbidity is measured because it is a good measurement of the effectiveness of Corbett Water District’s filtration system. The highest measurement was 0.510 NTU, with 100% of monthly samples met the turbidity limits set for our filtration technology.
The District will continue with our water conservation program. Please go to the District’s telemetry site at 123mc.com to view the levels of the water reservoir closest to your home. The username and password are both CWD. If our reservoirs are filled to a safe capacity the site will show a “green” spot and the customers can continue to consume our precious resource. When the reservoir levels are low and the spot turns “red” then we ask that the customers only use the water for consumption. This allows the reservoirs to refill in order to provide water for all of our customers and also supply adequate water to fight fires.
Our goal is to educate owners about sprinkler systems, their maintenance needs, and ways to adjust operations as landscaping matures. We ask that pool owners refill their pools infrequently. Please minimize time with hoses left running for outdoor water play. We can offer gardeners and plant nurseries education on ways to reduce water loss, such as mulching and soil improvements. Please check your toilets to make sure they are not leaking.
Union Pacific Grant
We have received a grant from the Union Pacific Railroad for our water conservation program. The Board is in the process of determining the rebate amount for the ultra low flush toilet program and the leaking waterline replacement program using cross-linked pipe material, such as PEX, Rehau and Wirsbo. The District is very grateful for this grant and would like to pass it onto the customers who are helping conserve water. Please see our website in the near future for the amount of rebates decided upon and for information on how to apply.
Energy Trust of Oregon Incentives:
The Energy Trust of Oregon provides rebates to PGE customers. You may be eligible for a rebate when you purchase a qualifying ENERGY STAR front-load clothes washer (2.5 cubic ft or larger) with an IMEF of 2.38 or higher. To better understand the terms and conditions, go to energrytrust.org.