RCRA REVISION CHECKLIST 99

Amendments to Interim Status Standards
for Downgradient Ground-Water Monitoring Well Locations
56 FR 66365-66369
December 23, 1991
(RCRA Cluster II, Non-HSWA)

	
				STATE ANALOG IS:	
		     ANALOGOUS	  EQUIV-	   MORE	BROADER
   FEDERAL REQUIREMENT     | 	FEDERAL RCRA CITATION    |	   STATE CITATION	| ALENT  |	STRINGENT |	IN SCOPE	

PART 260 - HAZARDOUS WASTE MANAGEMENT SYSTEM: GENERAL

SUBPART B - DEFINITIONS

	†	DEFINITIONS	 
"qualified ground-
water scientist"	260.10	

PART 265 - INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF 
HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES

SUBPART F - GROUND-WATER MONITORING

	†	GROUND-WATER MONITORING SYSTEM	 
demonstrate alternate
hydraulically down-
gradient monitoring
well location will meet
alternate criteria;
in writing and kept at
facility; certified by
qualified ground-water
scientist and establish:	265.91(a)(3)	
existing physical 
obstacle prevents 
monitoring well
installation at 
hydraulically 
downgradient limit
of the waste 
management area	265.91(a)(3)(i)	
selected alternate
downgradient location
is as close to limit of
waste management 
area as practical	265.91(a)(3)(ii)	
location ensures
detection that, given
alternate location, is
as early as possible
of any statistically
significant amounts
of hazardous waste
or constituents
that migrate from
the waste 
management area 
to uppermost aquifer	265.91(a)(3)(iii)	
lateral expansion,
new or replacement
units not eligible for
an alternate 
downgradient
location	265.91(a)(3)(iv)