PUBLIC HEALTH ASSESSMENT
CITY OF PERRYTON WELL NO. 2
(a/k/a PERRYTON WATER WELL NUMBER 2)
PERRYTON, OCHILTREE COUNTY, TEXAS
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 |
| µg/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 |
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 (µg/L) |
Max. Conc. (µg/L) |
Health Assessment Comparison Values (µg/L) | Exceeds HAC Values Yes/No? |
| Metals
Aluminum |
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 |
|
| Pesticides/Herbicides
Atrazine |
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 |
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 |
