25 Pa. Code § 250.312 - Final report
(a) For sites
remediated under the Statewide health standard, the person conducting the
remediation shall submit a final report to the Department which documents
attainment of the selected standard. This final report must include site
characterization information identified in §
250.204(b)-(e)
(relating to final report). The site characterization shall be conducted in
accordance with scientifically recognized principles, standards and procedures.
The level of detail in the investigation, and the selected methods and
analyses, that may include models, must sufficiently define the rate of
movement and the present and future extent and fate of contaminants to ensure
continued attainment of the remediation standard. The final report must
include, as appropriate, an assessment that addresses the vapor intrusion
exposure pathway. Interpretations of geologic and hydrogeologic data shall be
prepared by a professional geologist licensed in this Commonwealth.
(b) The final report for the Statewide health
standard shall include the results of the evaluation of ecological receptors.
If a person relies on a postremedy use to eliminate complete exposure pathways
that is not implemented at the time of the final report submission, a
postremediation care plan shall be submitted to document that the postremedy
use is implemented within 1 year from final report approval, unless the
Department approves an extension of time. If mitigation measures are
implemented under §
250.311 (relating to evaluation of
ecological receptors), a postremediation care plan shall be documented in the
final report that includes the following:
(1)
A plan to maintain the mitigated ecological resource.
(2) Reporting of the ongoing success or
failure of the mitigation measure implemented.
(3) Mitigation measures, instituted at the
time of the final report, shall be successfully accomplished and sustained up
to 5 years from final report approval.
(c) Final reports for the Statewide health
standard shall include information on the basis for selecting residential or
nonresidential standards and the additional information identified in §
250.204(f)(1)-(5).
(d) The final
report for the Statewide health standard shall include all sampling data and
descriptions of the sampling methodology and analytical results, including the
appropriate statistical methodologies, which pertain to whether the remediation
has attained the selected standard, following the requirements of Subchapter G
(relating to demonstration of attainment).
(e) If engineering controls are needed to
attain or maintain a standard, if institutional controls are needed to maintain
a standard, if the fate and transport analysis indicates that the remediation
standard, including the solubility limitation in §
250.304(b)
(relating to MSCs for groundwater), may be exceeded at the point of compliance
in the future, or if the remediation relies on natural attenuation, a
postremediation care plan shall be documented in the final report that includes
the information identified in § 250.204(g).
(f) If the soil to groundwater pathway soil
buffer distances are used, as identified in §
250.308 (relating to
soil-to-groundwater pathway numeric values), the following information shall be
included in the final report:
(1) Information
demonstrating that the actual site soil column thickness below the contaminated
soil by the information gathered from soil sample borings conducted during the
site characterization is at least the thickness identified in Appendix A,
Tables 3 and 4.
(2) Information
gathered during the field investigation phase and the laboratory analyses
conducted on the soil samples.
(3)
The boring logs and all other data presented in appropriate maps, cross
sections, figures and tables.
(g) If an equivalency demonstration is used
under §
250.308(d), the
following information shall be included in the final report:
(1) Information describing the actual site
soil column below the contaminated soil determined by soil sample borings
conducted during the site characterization.
(2) Information gathered during the field
investigation phase and the laboratory analyses conducted on the groundwater
samples beneath the contaminated soil.
(3) The boring logs and all other data
presented in appropriate maps, cross sections, figures and tables.
(4) Sampling data, in a tabular format, that
shows no exceedances of groundwater MSCs or the background standard, under
§ 250.308(d)(2).
(5) A
demonstration, submitted in a graphic format, that sampling data indicates no
increasing trend of concentration over time that may exceed the
standard.
(h) When a
person implements a remedy that relies on access to properties owned by third
parties, for remediation or monitoring, documentation of cooperation or
agreement shall be submitted as part of the final report.
Notes
The provisions of this § 250.312 issued under sections 104(a) and 303(a) of the Land Recycling and Environmental Remediation Standards Act (35 P. S. §§ 6026.104(a) and 6026.303(a)).
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