# • RCRA REVISION CHECKLIST 55 Statistical Methods for Evaluating Ground-Water Monitoring Data from Hazardous Waste Facilities 53 FR39720-39731 October,11, 1988 (Non-HSWA Cluster V) STATE ANALOG IS: FEDERAL REQUIREMENT FEDERAL RCRA CITATION ANALOGOUS STATE CITATION MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE PART 264 - STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES
SUBPART F - RELEASES FROM SOLID WASTE MANAGEMENT UNITS

GROUND-WATER PROTECTION STANDARD 

# • REQUIRED PROGRAMS definition of "detected" as in 264.98(f) definition of "exceeded" as in 264.99(d) WAC 173-303
264.91(a) (1)


### 264.91(a)(2) -645(2)(a) (i) 

### -645(2)(a)(ii;) 

### WAC 173-303 

### x



## x



# • replace "entering" after 264.93 with "detected in"; in the last clause replace everything after "constituents have" with "been detected in the groundwater." 264.92 remove "and" from end ofparagraph 264.97(a)(1) redesignate 264.97(g)(3) as 264.97(a)(1)(i); sampling ofwells not hydraulically upgradient 264.97(a)(1)(i) -645(3) -645(8)(a) (i)



### -645(a)(i)(A) 

## x x

x

I



### October II, 1988

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### RCRA REVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) 

# •
FEDERAL REOUIREMENT FEDERAL RCRA
. CITATION ANALOGOUS STATE CITATION STATE ANALOG IS: MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE old 264.97{g)(3)(i) becomes 264.97(a)(l)(i)(A); insert "hydraulically" preceding "upgradient"; replace "or" at end of paragraph with "and" 264.97(a)(1)(i) (A) 

### -645(8)(a)(i)(A) (1) X



# •

• old 264.97(g)(3)(ii) becomes 264.97(a)(1)(i)(B); add "; and" to end ofparagraph contamination detection whenmigration \ . f 

### to uppermost agu1 er detectionmonitoring --sampling procedure, number and kinds of samples. sample size sequencing of at least four samples; requirements of interval between alternate sampling procedure redesignate as 264.97{a) (1)(i) 

### specify statistical evaluation methods for ground-water data and specify in permit;
.requirements for use of listed methods: parametric ANOVA followed bymultiple comparisons procedures ANOVAbased on ranks followed by multiple comparisons procedures 264.97(a)(1)(i) (B) 

### 264.9?(a)(3)
264.97<g)

264.97(g) (1) 

### 264.97(g)(2) 264.97<g)(3)

264.97(h)

264.97<h)(1)
264.97(h)(2) -645(8)(a)(i)(A) (ll) 

### -645(8){a){iii)
-645(8)(g)
-645(8)(g) (i) 

### -645(8)(g)(ii) -645(8)(a)(i)(A) 

## rn»

-645(8)(h)
-645(8)(h) (i)


### -645(8)(h)(ii) X
X

X

X X X

X

X

X



### October 11, 1988

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# •

•

• RCRA REVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) STATE ANALOG IS: FEDERAL ANALOGOUS MORE BROADFEDERAL RCRA STATE EQUIV- STRIN- ER IN REOUIREMENT CITATION CITATION ALENT GENT SCOPE tolerance or prediction interval procedure 264.97(h)(3) -645(8)(h)(iii)· X control chart approach 264.97<h)(4) -645(8)(h)(iv) X another statistical method approvedby the Regional Administrator 264.97(h)(5) -645(8)(h)(v) X performance standards for statistical methods chosen under 264.97<h): 264.97(i)**~645(8)(i)** X appropriate for distribution ofchemical parameters or hazardous constituents; transformed or distribution-free test 264.97(i)(1) -645(8) (i)(i) X individual well comparison--O.Ol Type I error; multiple comparisons--0.05 Type I error, but maintain 0.01 Type I error for individual wells 264 . 97 (i)(2) -645(8)(i)(ii) X for control chart approach, what must be approvedby Regional Administrator 264.97 (i)(3) -645(8) (i)(iii) X for tolerance or prediction interval, what must be approved by Regional Administrator 264.97<i)(4) -645(8) (i) (Lv) X account for data below detection limit and requirements 264.97(i)(5) -645(8)(i)(v) X procedures to correct or control for seasonal and spatial variability 264.97(i)(6) -645(8) (i)(vi) X maintenance of October 11, 1988 Page 3 of 8RCRA REVISION CHECKLIST '55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) 

# •
FEDERAL REQUIREMENT ground-water monitoring data in facility operating record; when data must be reviewed FEDERAL RCRA CITATION

264.97(j) ANALOGOUS STATE CITATION

-645(8)(j) STATE ANALOG IS: MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE



## x



# • DETECTIONMONITORING PROGRAM ground-watermonitoring program for each chemical parameter andhazardous constituent; record of ground-water analytical data 264.98(c) Regional Administrator specifies frequency of samples and tests; four samples per well semi-annually 264.98(d) determine if statistically significant evidence of contamination 264.98(f) methods which can be used 264.98(f)(1) determine evidence of contamination at each monitoring well at compliance point; time period determinedby Regional Administrator 264.98(f)(2) what owner/operator must do if statistically significant evidence of contamination 264.98(g) notification of Regional Administrator 264.98(g)(1) immediate determination ifAppendix IX constituents are in groundwater 264.98(g)(2) for constituents WAC 173-303

-645(9)(c)

-645(9)(d)
-645(9)(f) -645(9)(f) (i)

-645(9)(f)(ii)

0645(9)(g) -645(9)(g) (i)
-645(9)(g)(ii) 

## x



## x

x 

## x

x

x


## x

X

October 11, 1988

- Page 4 of 8RCRA REVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd). 

# •
FEDERAL REOUIREMENT FEDERAL RCRA CITATION ANALOGOUS STATE CITATION STATE ANALOG IS: MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE

-645(9)(g)(v) X -645(9)(g)(iv)(A)X -645(9)(g)(iv)(B)X

-645(9)(g)(iv)(D)X 

## x 'x -645(9)(g)(iv) -645(9)(g)(iii)

-645(9)(g)(iv)(C)X 264.98(gH4) 264.98(g)(4)(i) 264.98(gH3)

264.98(g)(S) Appendix IX
264.98(g)(4) (ii) 264.98(g)(4) (iii)
264.98(g)(4) (iv) application for permit modification constituent concentration proposed changes to ground-water monitoring system proposed concentration limit or notice of intent for alternate concentration limit found, resample in one month; if confirmed, form basis ofcompliance monitoring; no resample-- initial analysis is basis

proposed additions or changes

what must be submitted within 180 days 1



# •

data to justify alternate concentration limit engineering feasibility plan for corrective action concentration of 264.98(g)(2) constituents does not exceedvalues of Table 1. 264.94 264.98(g)(5)(i) 264.98(g)(5)(ii)
264.98(g)(5)(ii) (A) -645(9)(g)(v)(A) X -645(9)(g)(v)(B) X
-645(9)(g)(v)(B) (1) X

I, I

# • alternate concentration limit demonstration that a source other than regulated unit caused contamination notify Regional Administrator of intent to submit demonstration 264.98(g)(5)(ii) (B)
264.98(gH6)
264.98(gH6Hi) -645(9)(g)(v)(B) (11) X
-645(9HgHvi) X
-645(9)(g)(vi)(A)X October 11, 1988

- Page 5 of 8RCRA REVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) 

# •

FEDERAL REQUIREMENT FEDERAL RCRA CITATION ANALOGOUS STATE CITATION STATEANALOG IS: MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE report demonstrating that another source caused contamination or error in sampling, analysis or evaluation 264.98(g)(6)(ii) application for permit modification 264.98(g)(6)(iii) continue to monitor 264.98(g)(6)(iv) -645(9)(g)(v{)(B)X '-645(9)(g)(vi)(C)X

-645(9)(g)(vi)(D)X

264.98(h) -645(9)(h) X 264.98(i) deleted X 264.98(j) deleted X 264.98(k) deleted X PROGRAM WAC 173-303 delete paragraph delete paragraph what must be done if detection monitoring program no longer satisfies requirements

COMPLIANCE MONITORING • delete paragraph Regional Administrator specifies procedures and statistical methods 264.99(c) sampling program for each chemical parameter or hazardous constituent 264.99(c)(1) records of groundwater analytical data 264.99(c)(2) statistical evidence of increased contamination of any chemical parameter or hazardous constituent 264.99(d) -645(10)(c) X

-645(10(c)(i) X
-645(10)(c) (U) X

-645(10)(d) X 

# • October 11, 1988

- Page 6 of 8RCRAREVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) 

# •
FEDERAL REQUIREMENT FEDERAL RCRA

.CITATION ANALOGOUS STATE CITATION STATE ANALOG IS: MORE BRQADEQUIV- STRIN- ER IN ALENT GENT SCOPE



# •

• method(s) to determine statistically significant evidence of increased contamination 264.99(d)(1) within reasonable time period, determine if statistically significant evidence of increased contamination at each monitoring well at compliance point 264.99(d)(2) Regional Administrator specification of sample and test frequencies; four samples per well semi-annually 264.99(f) annual analysis at each well's compliance point for all 264, Appendix IX constituents; procedures regarding new constituents not in permit 264.99(g) -645(10)(d)(i)· X

-645(10)(d)(ii) X

-645(lO)(f) X

-645(lO)(g) X

Qctober 11, 1988

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### RCRAREVISION CHECKLIST 55: Statistical Methods for Evaluating GroundWater Monitoring Data from Hazardous Waste Facilities (cont'd) 

# •
FEDERAL REOUIREMENT FEDERAL RCRA CITATION ANALOGOUS STATE CITATION STATEANALOG IS: MORE BROADEQUIV- STRIN- ER IN ALENT GENT SCOPE



# • remove old264.99(h) and redesignate old .264.99(i) as 264.99(h); revise new 264.99(h)-- change "(h)" to "(d)"; replace "the ground-water protection standard" with "any concentration limits under 264.94 are"; insert "or she" after "he" 264.99(h) redesignate old 264.99(j) as 264.99(i); revise new 264.99(i)-- change "(h)" to "(d)"; replace "protection standard" with "concentration limits under this section are"; insert "or she" after "he"; revise rest of paragraph after "regulated unit caused" retaining clause "Inmaking demonstration
..." 264.99(i) redesignate old 264.99(k) as 264.99(j) 264.99(j) redesignate as 264.99(j) so that 264.99(k) no longer exists 264.99(k) - 645(10Hg)

-645(10Hg)
-645(10) (i)


### -645(10Hj) 

## x



## x

x

x

I •

# • remove paragraph 264.99(1) removed lNote in line 2 there is a typographical error--"or'i shouldbe "of."

October 11, 1988

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