OAR 333-029-0075
Water Supply Systems
(1)
Definitions applicable to this rule:(a)
“Maximum Contaminant Level (MCL)” means the maximum allowable level of a contaminant in water for consumption delivered to the users of a system, except in the case of turbidity where the maximum allowable level is measured at the point of entry to the distribution system.(b)
“Quarterly Sampling” means a sample is taken and submitted according to the following schedule: 1st Quarter is from January 1 through March 31, 2nd Quarter is from April 1 through June 30, 3rd Quarter is from July 1 through September 30 and the 4th Quarter is from October 1 through December 31.(2)
Water supply systems serving travelers’ accommodations and hostels shall comply with OAR for Public Water Systems, OAR 333-061-0005 (Purpose) through 333-061-0095 (Severability), and must be:(a)
Regulated as a Public Drinking Water System under OAR 333-06; or(b)
Water systems serving travelers’ accommodations and hostels that are not regulated under OAR 333-061 as a Public Drinking Water System must meet the requirements in section (3) below.(3)
Unregulated Public Drinking Water Systems:(a)
Plan Review. All new facilities that are not regulated by OAR 333-061 must submit plans to the Authority for review prior to construction or major modification of system. Systems regulated prior to January 1, 2003 by OAR 333-061 are not required to re-submit plans.(b)
Surface Water Sources. New facilities with surface water sources not regulated under OAR 333-061 will not be licensable after January 1, 2005. Facilities existing prior to January 1, 2005 in compliance with OAR 333-061-0032 (Treatment Requirements and Performance Standards for Surface Water, Groundwater Under Direct Influence of Surface Water, and Groundwater) may continue to operate.(c)
Sampling frequency:(A)
For seasonal facilities, a coliform sample must be taken prior to operational period and each quarterly sampling period while open to public. A minimum of two samples will be required for coliform, regardless of length of operation.(B)
For year round facilities:(i)
Coliform: Monthly for surface water. Quarterly for populations under 1000 on ground water.(ii)
Inorganic Samples: One time sampling required for new facilities before beginning operation.(d)
MCL Violations. An item is not considered a violation until confirmed by second sample taken with 24 hours. Four repeat samples must be taken within 24 hours of the original positive sample for a sample result above the maximum contaminant level (MCL).(A)
Total coliform: Report positive total coliform samples to the Authority within 24 hours of being notified of the positive sample.(B)
Fecal coliform. Any positive fecal coliform sample must be reported to the Authority within 24 hours.(i)
Public notification for this potential acute health risk is required.(ii)
An alternative procedure approved by the Authority must be in place before serving public.(C)
Inorganic Samples. One time sampling is required for new facilities. Additional testing is not required for facilities that were previously regulated under OAR 333-061 and have tested prior to January 1, 2003. Inorganics include: antimony, arsenic, asbestos, barium, beryllium, cadmium, chromium, cyanide, fluoride, mercury, nickel, nitrate, nitrite, selenium and thallium.(D)
Nitrate: Sample must be submitted for testing annually(i)
Any samples exceeding the MCL for nitrate shall be reported to the Authority within at least 24 hours.(ii)
When a test on a sample is reported to exceed the MCL for nitrate, public notification is required. Bottled water must also be provided to public upon request.(E)
The Authority may require more frequent monitoring than specified or may require confirmation samples for positive and negative results. It is the responsibility of the operator to correct any problems and get a laboratory test result that is less than the maximum contaminant level.(e)
Sample collection methods.(A)
For the purpose of determining compliance with the MCL and the sampling requirements of these rules, sampling results may be considered only if they have been analyzed by a laboratory certified by the State Drinking Water Program.(B)
Samples submitted to laboratories for analysis shall be clearly identified with the name of the water system, facility license number, sampling date, time, sample location identifying the sample tap, the name of the person collecting the sample and whether it is a routine or a repeat sample.(i)
Routine: These are samples collected from established sampling locations within a water system at specified frequencies to satisfy monitoring requirements as prescribed in this rule. These samples are also used to calculate compliance with maximum contaminant levels for inorganics prescribed in OAR 333-061-0030 (Maximum Contaminant Levels and Action Levels) (Table 1);(ii)
Repeat: These are samples collected as a follow-up to a routine sample that has exceeded a maximum contaminant level.(iii)
Test results: Sample results must be submitted to the Local Public Health Authority by the 10th of the month following the sampling period.(iv)
The Authority may take additional samples to determine compliance with applicable requirements of these rules.(f)
Public Notice. All public notification must be posted conspicuously on site and must include:(A)
A description of the violation or situation of concern;(B)
Corrective actions taken to improve water quality;(C)
Any potential adverse health effects;(D)
The population at risk;(E)
The alternative measures in place to provide safe drinking water.(4)
All water distribution systems shall be designed, constructed, approved and maintained in compliance with the requirements of the Oregon Department of Consumer and Business Services, Building Codes Division. New water supply distribution systems, or systems remodeled, enlarged or converted after the effective date of these rules must meet the requirements of the 2000 Oregon Plumbing Specialty Code.(5)
Hot water heaters shall have installed an approved A.S.M.E. pressure relief valve which is accessible for inspection and testing.(6)
Where drinking fountains are provided, they shall be of an angle jet type with adequate water pressure at all times.
Source:
Rule 333-029-0075 — Water Supply Systems, https://secure.sos.state.or.us/oard/view.action?ruleNumber=333-029-0075.