Ohio Admin. Code 3745-81-80 - Control of lead and copper - general requirements
(A) Applicability. The requirements of rules
3745-81-80 to
3745-81-90
of the Administrative Code are based on the national primary drinking water
regulations for lead and copper. Unless otherwise indicated, each of the
provisions of these rules applies to community water systems and nontransient
noncommunity water systems (hereinafter referred to as "water systems" or
"systems").
(B) Scope. These
regulations establish a treatment technique that includes requirements for
corrosion control treatment, source water treatment, lead service line
replacement, and public education. Lead and copper action levels, measured in
samples collected at consumers' taps, may trigger these requirements.
(C) Lead and copper action levels, and lead threshold levels .
(1) The lead action level is exceeded if, at any time during the monitoring period, the
concentration of lead in more than ten per cent of tap water samples collected
during any monitoring period conducted in accordance with rule
3745-81-86
of the Administrative Code is greater than 0.015 milligram per liter, i.e., if
the ninetieth percentile lead level is greater than 0.015 milligram per
liter.
(2) The copper action level
is exceeded if, at any time during the monitoring
period, the concentration of copper in more than ten percent of tap water
samples collected during any monitoring period conducted in accordance with
rule
3745-81-86
of the Administrative Code is greater than 1.3 milligrams per liter, i.e., if
the ninetieth percentile copper level is greater than 1.3 milligrams per
liter.
(3) The ninetieth percentile
lead and copper levels shall be computed as follows:
(a) The analytical results of all lead or
copper samples taken during a monitoring period shall be placed in ascending
order from the sample with the lowest concentration to the sample with the
highest concentration. Each analytical result shall be assigned a consecutive
whole number, beginning with the number one for the sample with the lowest
contaminant level. The number assigned to the sample with the highest
contaminant level shall be that of the total number of samples analyzed.
(i)
If less than the
minimum number of samples required by rule
3745-81-86
of the Administrative Code have been taken, the minimum number of samples shall
be used in calculations.
(ii)
If greater than or equal to the minimum number of
samples required by rule
3745-81-86
of the Administrative Code have been taken, the total number of samples shall
be used in calculations.
(b) The number of samples taken during the
monitoring period shall be multiplied by 0.9.
(c) The contaminant concentration in the
numbered sample with the number yielded by the calculation in paragraph
(C)(3)(b) of this rule is the ninetieth percentile contaminant level.
(d) For public water systems that monitor
five samples per monitoring period, the ninetieth percentile is computed by
taking the average for the two samples with highest concentrations.
(e) For public water systems that have been
allowed by the director to collect fewer than five samples under rule
3745-81-86
of the Administrative Code, the sample result with the highest concentration is
considered the ninetieth percentile value.
(4)
The lead
threshold level is exceeded at 0.015 milligrams per liter concentration of lead
in an individual tap water sample.
(D) Corrosion control treatment requirements.
(1) All water systems shall install and
operate optimal corrosion control treatment as defined in rule
3745-81-01
of the Administrative Code.
(2) Any
water system that complies with the applicable corrosion control treatment
requirements approved by the director under rules
3745-81-81
and
3745-81-82
of the Administrative Code shall be deemed in compliance with the treatment
requirement contained in paragraph (D)(1) of this rule.
(E) Source water treatment requirements. Any
system exceeding the lead or copper action level shall implement all applicable
source water treatment requirements specified by the director under rule
3745-81-83
of the Administrative Code.
(F)
Lead service line replacement requirements.
Any system exceeding
that replaces lead service lines, replaces water mains
in areas that contain or are likely to contain lead service lines or
exceeds the lead action level after implementation of applicable
corrosion control and source water treatment requirements shall complete the
lead service line replacement requirements
contained in rule
3745-81-84
of the Administrative Code.
(G)
Consumer notification, lead public notification
and public education requirements.
(2)
(3) Public education.
Any system exceeding the lead action level shall implement the public education
requirements contained in rule
3745-81-85
of the Administrative Code.
(1)
Consumer notification. Pursuant to paragraph (D)
of rule
3745-81-85
of the Administrative Code, all
the owner or operator of a public water
systems
system
shall provide a consumer notice of lead tap water monitoring results to
persons served at the sites (taps) that are sampled.
(2)
Lead public
notification. Any system with results of lead tap water monitoring that show an
exceedance of the lead action level shall provide lead public notification in
accordance with rule
3745-81-85
of the Administrative Code.
(H) Monitoring and analytical requirements.
Monitoring of tap water for lead and copper, monitoring for water quality
parameters, monitoring of source water at each entry point to the distribution
system for lead and copper, and analyses of these monitoring samples shall be
completed in compliance with rules
3745-81-86
to
3745-81-89 of
the Administrative Code and Chapter 3745-89(laboratory approval) of the
Administrative Code.
(I) Reporting
requirements. Public water systems shall report to the director any information
required by the treatment provisions of rules 3745-81-80 to
3745-81-90
of the Administrative Code.
(J)
Recordkeeping requirements. Public water systems shall maintain records in
accordance with rule
3745-81-90
of the Administrative Code.
(K)
Violation of primary drinking water regulations. Failure to comply with the
applicable requirements of rules 3745-81-80 to
3745-81-90
of the Administrative Code, including requirements established by the director
pursuant to these provisions, shall constitute a violation of the
Administrative Code primary drinking water regulations for lead
and/or
or
copper.
Notes
Promulgated Under: 119.03
Statutory Authority: 6109.121, 6109.04
Rule Amplifies: 6109.04, 6109.121
Prior Effective Dates: 9/13/93, 10/17/03, 7/24/09
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