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PUBLIC HEALTH ASSESSMENT

CITY OF PERRYTON WELL NO. 2
(a/k/a PERRYTON WATER WELL NUMBER 2)
PERRYTON, OCHILTREE COUNTY, TEXAS


APPENDICES

APPENDIX A.

Acronyms and Abbreviations
ATSDR Agency for Toxic Substances and Disease Registry
CERCLA Comprehensive Environmental Response, Compensation and Liability Act of 1980
CLHA Child Longer-term Health Advisory
CREG Carcinogenic Risk Evaluation Guide
EMEG Environmental Media Evaluation Guide
EPA U.S. Environmental Protection Agency
ESI Expanded Site Investigation
HAC Health Assessment Comparison Value
HOD Health Outcome Data
kg Kilogram
LOAEL Low Observable Adverse Effects Level
LTHA Lifetime Health Advisory
MCL Maximum Contaminant Level
MCLG Maximum Contaminant Level Goal
g/L Micrograms per Liter equals ppb or Parts per Billion
mg/kg Milligrams per Kilogram
MRL Minimal Risk Level
na Not Applicable
ND Not Detected
NOAEL No Observable Adverse Effects Level
NPL National Priorities List
PHA Public Health Assessment
ppb Parts per Billion
RfD Reference Dose
RMEG Reference Dose-based Media Evaluation Guide
SARA 1986 Superfund Amendments and Reauthorization Act
TDH Texas Department of Health
TWC Texas Water Commission
TNRCC Texas Natural Resource Conservation Commission

APPENDIX B - Figures


Figure 1. Perryton Water Well Number 2 Site Location and Demographics Map


Figure 2. Perryton Soil Sampling Locations


Figure 3. Perryton Water Well Location Map

 

Table 2.

Perryton Water Well Number 2 April 1999 Sample Results*
Constituents Analyzed Laboratory
Detection Limits
(g/L)
Max.
Conc.
(g/L)
Health Assessment Comparison Values (g/L) Exceeds
HAC
Values
Yes/No?
Metals

Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Nickel
Selenium
Silver
Thallium
Vanadium
Zinc



100
60
3
10
5
5
10
20
20
25
3
5
0.1
20
3
10
5
30
20


ND
ND
ND
186
ND
ND
ND
ND
74
2,550
11.2
28
ND
ND
3.9
ND
ND
ND
348


Not applicable
Not applicable
Not applicable
700/2000 RMEG; 2000MCL
Not applicable
Not applicable
Not applicable
Not applicable
1,300 EPA action level
None available
15 EPA action level
50/200 RMEG
Not applicable
Not applicable
50/200 RMEG; 50 MCL
Not applicable
Not applicable
Not applicable
2000 LTHA



na
na
na
No
na
na
na
na
No
na
No
No
na
na
No
na
na
na
No

Pesticides/Herbicides

Atrazine
Propazine



0.2
0.2


5.47
5.74


400/1000 RMEG; 50 CLHA; 3 MCL
200/700 RMEG; 10 LTHA; 500 CLHA


Yes, MCL
No
Volatile Organic
Compounds

Chloroform
Carbon tetrachloride




2
2



4.8
42.5



100/400 chronic EMEG; 100 CLHA; 6 CREG
7/20 RMEG; 70 CLHA; 0.3 CREG B2; 5 MCL



No
Yes
Other Constituents

Nitrogen, Nitrate

Nitrogen, Nitrite



Not provided by lab
Not provided by lab


17,900

<50



10,000 MCL

1,000 MCL



Yes

No

*results reported in this summary table included unfiltered sample results only. Concentrations of constituents measured in filtered samples were lower than in unfiltered samples.

Table of Contents

  
 
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