Sampled 1/10/2007
Units In mg/l
Well | Benzene | Toluene | Ethylbenzene | Xylenes | MTBE | n-Hexane | Naphthalene | Diesel | Total Conc. |
MW-4 | 2.990 | .248 | .336 | 1.170 | ND | .0675 | .357 | NT | 5.1685 |
Total Concentration of Wells Exceeding SSTLs | 2.990 | .248 | .336 | 1.170 | ND | .0675 | .357 | NT | 5.1685 |
SSTL Total From Table 2 | 2.242 | >SOL | >SOL | >SOL | 58.533 | >SOL | >SOL | 1211 | 1271.775 |
Concentration Over SSTLs | .748 | Not Over | Not Over | Not Over | Not Over | Not Over | Not Over | Not Over | Not Over |
MW-1P** | .0145 | ND | .0081 | .0054 | ND | ND | ND | NT | .028 |
MW-2P** | .0006 | ND | ND | ND | ND | ND | ND | NT | .0006 |
MW-3P** | ND | ND | ND | ND | ND | ND | ND | NT | ND |
MW-4P** | ND | ND | ND | ND | .0016 | ND | ND | NT | .0016 |
MW-5P** | ND | ND | ND | ND | ND | ND | ND | NT | ND |
MW-6P** | .0017 | ND | ND | ND | ND | ND | .0067 | NT | .0084 |
MW-7P** | .281 | ND | .0109 | .0092 | ND | .0020 | .0088 | NT | .3119 |
MW-9** | ND | ND | ND | ND | ND | ND | ND | NT | ND |
MW-10** | .0019 | ND | ND | ND | ND | ND | ND | NT | .0019 |
MW-11** | 1.110 | .881 | .632 | 2.760 | ND | .149 | .371 | NT | 5.903 |
Sampled 7/24/08
Units in mg/l
Well | Benzene | Toluene | Ethylbenzene | Xylenes | MTBE | n-Hexane | Naphthalene | Diesel | Total Conc. |
MW-11 | 11.008*** | FP | FP | FP | FP | FP | FP | FP | Unk. |
Total Concentration of Wells Exceeding SSTLs | 11.008 | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. |
STL Total From Table 2 | 3.008 | >SOL | >SOL | >SOL | 77.574 | >SOL | >SOL | 1583 | 1663.82 |
*Concentration Over SSTLs | 8.000 | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. | Unk. |
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MW-1P** | .0332 | ND | ND | ND | ND | ND | ND | ND | .033 |
MW-2P** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-3P** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-4** | .0096 | ND | .0315 | .1340 | ND | .0033 | .0272 | ND | .2056 |
MW-4P** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-5P** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-6P** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-7P** | .0106 | ND | .0056 | .0200 | ND | ND | .0594 | ND | .0956 |
MW-9** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
MW-10** | ND | ND | ND | ND | ND | ND | ND | ND | ND |
* The concentration over SSTLs is the figure used to calculate the 25, 50 and 75% reduction payment.
** These monitor wells are at or below detection limits of calculated SSTLs. The levels of contamination for these wells are not included in the Total Concentration of Wells Exceeding SSTLs.
*** As NDEQ has done in the past, the Benzene concentration is assumed for this Contract to calculate the incremental payments, after the free product is removed. The actual dissolved concentration after free product removal may be significantly higher or lower than the assumed concentration.