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EQ
DEPARTMENT OF ENVIRONMENTAL QUALITY WATER DIVISION
SUPPLYING WATER TO THE PUBLIC
Filed with the Secretary of State on March 29, 2005
These rules take effect 7 days after filing with the Secretary of State
(By authority conferred on the department of environmental quality by section 5 of 1976 PA 399, MCL 325.1005, and Executive Reorganization Order 1996-1, MCL 330.3101)
R 325.10104 and R 325.10107 of the Michigan Administrative Code are amended as follows: PART 1. GENERAL PROVISIONS
R 325.10104 Definitions; D, E. Rule 104. As used in these rules:
(a) "Department" means the department of environmental quality or its authorized agent or representative.
(b) "Deviation" means an exception to a department rule establishing minimum standards or requirements issued in writing or as a condition to a permit to a supplier of water.
(c) "Direct filtration" means a series of processes, including coagulation and filtration, but excluding sedimentation, resulting in substantial particulate removal.
(d) "Director" means the director of environmental quality or his or her authorized agent or representative.
(e) "Disinfectant contact time" (T in CT calculations) means the time in minutes that it takes for water to move from the point of disinfectant application or the previous point of disinfectant residual measurement to a point at or before the point where residual disinfectant concentration is measured. Disinfectant contact time in pipelines shall be calculated based on plug flow by dividing the internal volume of the pipe by the maximum hourly flow rate through that pipe. Disinfectant contact time within mixing basins and storage reservoirs shall be determined by tracer studies or an equivalent demonstration.
(f) "Disinfection profile" means a summary of Giardia lamblia, and in certain cases, virus inactivation through the treatment plant.
(g) "Distribution system" means a system that consists of the following components through which water is distributed and used or intended for use for drinking or household purposes:
(i) Piping.
(ii) Transmission or distribution mains.
(iii) Pumps.
(iv) Pumping stations.
(v) Storage tanks.
(vi) Controls.
(vii) Associated appurtenances.
(h) "Division" means the drinking water and radiological protection division of the department.
(i) "Domestic or other non-distribution system plumbing problem" means a coliform contamination problem in a public water system which has more than 1 service connection that is limited to the specific service connection from which the coliform positive sample was taken.
(j) "Drawdown" means the difference between the static water level and the pumping water level in a well or, for a flowing artesian well, the difference between an established datum above ground and the pumping water level.
(k) "Effective corrosion inhibitor residual," for the purpose of lead and copper control, means a concentration that is sufficient to form a passivating film on the interior walls of a pipe.
(l) "Emergency" means a situation in a public water supply that results in contamination, loss of pressure, lack of adequate supply of water, or other condition that poses an imminent hazard or danger to the public health.
(m) "Enhanced coagulation" means the addition of sufficient coagulant for improved removal of disinfection byproduct precursors by conventional filtration treatment.
(n) "Enhanced softening" means the improved removal of disinfection byproduct precursors by precipitative softening.
(o) "EPA" means the United States environmental protection agency.
(p) "Equivalent certificate" means a certificate which is issued to certain individuals. Individuals eligible for an equivalent certificate do not hold a current certificate but were issued certification before the effective date of the current rules.
(q) "Established ground surface" means the intended or actual finished grade or elevation of the surface of the ground at the site of a water supply facility.
(r) "Exemption" means an order, with appropriate conditions, time schedules, and compliance requirements, that is issued by the director to a supplier of water permitting a public water supply to be in temporary noncompliance with a state drinking water standard, including a specified treatment technique.
R 325.10107 Definitions; P, R. Rule 107. As used in these rules:
(a) "Permit" means a public water supply construction permit that is issued to a supplier of water by the department under the provisions of section 4 of the act.
(b) "Person" means an individual, partnership, copartnership, cooperative, firm, company, public or private association or corporation, political subdivision, agency of the state, agency of the federal government, trust, estate, joint structure company, or any other legal entity, or their legal representative, agent, or assignee.
(c) "Pitless adapter" means a device or assembly of parts which permits water to pass through the wall of a well casing or extension of a well casing and which provides access to the well and to the parts of the system within the well in a manner that prevents the entrance of contaminants into the well and the water produced.
(d) "Plans and specifications" means drawings, data, and a true description or representation of an entire waterworks system or parts of the system as it exists or is to be constructed, and a statement of how a waterworks system shall be operated.
(e) "Point-of-entry treatment device (POE)" means a treatment device applied to the drinking water entering a house or building for the purpose of reducing contaminants in the drinking water distributed throughout the house or building.
(f) "Point-of-use treatment devise (POU)" means a treatment device applied to a single tap used for the purpose of reducing contaminants in drinking water at that 1 tap.
(g) "Political subdivision" means a city, village, township, charter township, county, district, authority, or portion or combination of any of the entities specified in this subdivision.
(h) "PQL" means the practical quantitation levels. The PQL is the lowest concentration that can be reliably achieved by well-operated laboratories within specified limits of precision and accuracy during routine laboratory operating conditions.
(i) "Production well" means a well that has been approved for use for a public water supply in accordance with the provisions of part 8 of these rules.
(j) "Public hearing" means a hearing which is conducted by the director of the department on matters relating to the functions and responsibilities of the division and which seeks public input relevant to such functions and responsibilities.
(k) "Public water supply" or "public water system" means a waterworks system that provides water for drinking or household purposes to persons other than the supplier of the water, and does not include either of the following:
(i) A waterworks system that supplies water to only 1 living unit.
(ii) A waterworks system that consists solely of customer site piping.
(l) "Pumping water level" means the distance measured from an established datum at or above ground level to the water surface in a well being pumped at a known rate for a known period of time.
(m) "Rated treatment capacity" means 1 or any combination of the following capacities when water treatment is practiced:
(i) Rated capacity from an approved surface water supply, ground water supply under the direct influence of surface water, or complete treatment system as contained in R 325.11006.
(ii) Firm capacity from an approved ground water supply where firm capacity means the production capability of each respective component of the waterworks system with the largest well, pump, or treatment unit out of service.
(iii) Available capacity obtained under contract and capable of delivery from another approved public water supply.
(n) "Raw water" means water that is obtained from a source by a public water supply before a supplier of water provides any treatment or distributes the water to its customers.
(o) "Regional administrator" means the EPA region V administrator.
(p) "Regulated VOCs" means a group of volatile organic chemicals for which state drinking water standards have been promulgated, but does not include total trihalomethanes.
(q) "Removed from service" means physically disconnected from the waterworks system in a manner that would prevent the inadvertent use of the well and would require specific authorization from the supplier of water to reconnect.
(r) "Repeat sample" means a sample that is collected and analyzed in response to a previous coliform- positive sample.
(s) "Resident" means an individual who owns or occupies a living unit.
(t) "Routine sample" means a water sample that is collected and analyzed to meet the monitoring requirements for total coliform, as outlined in the written sampling plan.
