National Cost Implications of Potential Long-Term LCR Requirements (PDF)
- Author(s): Slabaugh, Rebecca M.; Arnold, Roger B., Jr.; Chaparro, Sean; Hill, Christopher P.
- Publications: Journal - American Water Works Association
- Issue Date: August 2015
- Volume / Number: 107, Number 8
- Page(s): E389-E400
- DOI: http://dx.doi.org/10.5942/jawwa.2015.107.0097
- Product Number: JAW_0081915
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Concerns that the current Lead and Copper Rule (LCR) may not
adequately protect public health have prompted the US
Environmental Protection Agency (USEPA) to consider
restructuring existing monitoring requirements by targeting a
redefined pool of high-risk sites or altering the sampling protocol.
Analysis of historical lead and copper monitoring data from 18
public water systems (PWSs) verified that a significant percentage
of PWSs with lead service lines are likely to be affected by potential
Long-Term Lead and Copper Rule (LT-LCR) revisions. Data were
used to facilitate a national cost-of-compliance estimate for
additional implementation of corrosion control treatment (CCT)
necessary to comply with the LT-LCR and potential unintended
consequences associated with those treatment changes. Cost
estimates presented here can be used by USEPA to shape the
upcoming rule and also by PWSs to assess potential costs associated
with optimizing CCT for LT-LCR compliance.
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