Table 4. Schedule 2060 Technical Memorandum Recommendations

+----+----+-------+------------+------------+--------+---------------+
| *  | ** | **    | **         |            |        | **Rec         |
| *P | Re | Compo | Comments** |            |        | ommendation** |
| ar | ma | und** |            |            |        |               |
| am | rk |       |            |            |        |               |
| et | C  | **N   |            |            |        |               |
| er | od | ame** |            |            |        |               |
| ** | ed |       |            |            |        |               |
|    | ** |       |            |            |        |               |
| ** |    |       |            |            |        |               |
| Co |    |       |            |            |        |               |
| de |    |       |            |            |        |               |
| ** |    |       |            |            |        |               |
+====+====+=======+============+============+========+===============+
|    |    |       |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
|    |    |       | **Set      | **Matrix   | **     |               |
|    |    |       | Spikes     | Spikes     | Blanks |               |
|    |    |       | (LRWS)**   | (LMS)**    | (L     |               |
|    |    |       |            |            | RWB)** |               |
+----+----+-------+------------+------------+--------+---------------+
|    |    |       |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **2,  | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | 4-D** | Median     | from time  | labo   | received.**   |
| 97 |    |       | Recovery   | periods    | ratory |               |
| 32 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **110      |            | rved** |               |
|    |    |       | [+]{.      | **118      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 18.3 to    | underline} |        |               |
|    |    |       | 115        | 38.7 to    |        |               |
|    |    |       | [+]{.      | 126        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 19.5**     | underline} |        |               |
|    |    |       |            | 25**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **2,4 | **Median   | **Data     | **No   | **Remove      |
| *3 | *E | -DB** | recovery   | from time  | labo   | routine E     |
| 87 | ** |       | i          | periods    | ratory | code from     |
| 46 |    |       | mproved.** | not        | blank  | data after    |
| ** |    |       |            | sta        | c      | July 31,      |
|    |    |       | **71       | tistically | ontrib | 2002.**       |
|    |    |       | [+]{.      | d          | utions |               |
|    |    |       | underline} | ifferent** | obse   |               |
|    |    |       | 11.4 to    |            | rved** |               |
|    |    |       | 74.8       | **79.7     |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 11.5**     | 18.4 to    |        |               |
|    |    |       |            | 79.6       |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 12.5**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Aci | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | fluor | Median     | from time  | labo   | received**    |
| 93 |    | fen** | Recovery   | periods    | ratory |               |
| 15 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **94.8     |            | rved** |               |
|    |    |       | [+]{.      | **97       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 23.3 to    | underline} |        |               |
|    |    |       | 85.4       | 38.7 to 77 |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 15.6**     | 25**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **    | **Median   | **Drop in  | **No   | **All data    |
| *3 | *E | Benta | recovery   | Recovery   | labo   | should        |
| 87 | ** | zon** | and        | after July | ratory | continue to   |
| 11 |    |       | standard   | 31,        | blank  | be E coded.   |
| ** |    |       | deviations | 2002.**    | c      | Laboratory    |
|    |    |       | changed.** |            | ontrib | set spike     |
|    |    |       |            | **88       | utions | median        |
|    |    |       | **71.1     | [+]{.      | obse   | recoveries    |
|    |    |       | [+]{.      | underline} | rved** | may not       |
|    |    |       | underline} | 28.8 to    |        | reflect       |
|    |    |       | 29.8 to 2  | 56.8       |        | recoveries in |
|    |    |       | [+]{.      | [+]{.      |        | matrices.     |
|    |    |       | underline} | underline} |        | Remove        |
|    |    |       | 22.8**     | 30.2       |        | routine E     |
|    |    |       |            | Sample     |        | code from     |
|    |    |       | **I        | matrices   |        | data after    |
|    |    |       | mprovement | show some  |        | September 30, |
|    |    |       | of Median  | pr         |        | 2004.**       |
|    |    |       | Recovery   | eservation |        |               |
|    |    |       | and/or     | effect.**  |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Br  | **Median   | **Data     | **No   | **All data    |
| *4 | *E | omoxy | recovery   | from time  | labo   | should        |
| 83 | ** | nil** | and        | periods    | ratory | continue to   |
| 11 |    |       | standard   | not        | blank  | be E coded.   |
| ** |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **69.6     | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **65.7     |        | reflect       |
|    |    |       | 33.2 to    | [+]{.      |        | recoveries in |
|    |    |       | 7.7        | underline} |        | matrices.**   |
|    |    |       | [+]{.      | 32 to 69.4 |        |               |
|    |    |       | underline} | [+]{.      |        | **Remove      |
|    |    |       | 27**       | underline} |        | routine E     |
|    |    |       |            | 25.6**     |        | code from     |
|    |    |       | **I        |            |        | data after    |
|    |    |       | mprovement | **Sample   |        | September 30, |
|    |    |       | of Median  | matrices   |        | 2004.**       |
|    |    |       | Recovery   | show some  |        |               |
|    |    |       | and/or     | pr         |        |               |
|    |    |       | Standard   | eservation |        |               |
|    |    |       | Deviation  | effect.**  |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **C   | **Median   | **Data     | **No   | **All data    |
| *4 | *E | hloro | recovery   | from time  | labo   | should        |
| 93 | ** | thalo | and        | periods    | ratory | continue to   |
| 06 |    | nil** | standard   | not        | blank  | be E coded.   |
| ** |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **10.1     | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **33.6     |        | reflect       |
|    |    |       | 9.8 to 0   | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 19.4 to    |        |               |
|    |    |       | 7.1**      | 31.7       |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 15.4**     |        |               |
|    |    |       |            |            |        |               |
|    |    |       |            | **Sample   |        |               |
|    |    |       |            | matrices   |        |               |
|    |    |       |            | show some  |        |               |
|    |    |       |            | pr         |        |               |
|    |    |       |            | eservation |        |               |
|    |    |       |            | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Cl  | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | opyra | Median     | from time  | labo   | received.**   |
| 93 |    | lid** | Recovery   | periods    | ratory |               |
| 05 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **71       |            | rved** |               |
|    |    |       | [+]{.      | **60.3     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 20.7 to    | underline} |        |               |
|    |    |       | 72.9       | 27.6 to    |        |               |
|    |    |       | [+]{.      | 65.1       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 19.1**     | underline} |        |               |
|    |    |       |            | 24.7**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Dac | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | thal, | Median     | from time  | labo   | received.**   |
| 93 |    | Monoa | Recovery   | periods    | ratory |               |
| 04 |    | cid** | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **93.6     |            | rved** |               |
|    |    |       | [+]{.      | **103      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 18.8 to    | underline} |        |               |
|    |    |       | 94.9       | 22.4 to    |        |               |
|    |    |       | [+]{.      | 96.4       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15.2**     | underline} |        |               |
|    |    |       |            | 20.3**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | *Dica | Median     | from time  | labo   | received.**   |
| 84 |    | mba** | Recovery   | periods    | ratory |               |
| 42 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **98.4     |            | rved** |               |
|    |    |       | [+]{.      | **96.5     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15.4 to    | underline} |        |               |
|    |    |       | 95.9       | 21.8 to    |        |               |
|    |    |       | [+]{.      | 94.2       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.2**     | underline} |        |               |
|    |    |       |            | 20.6**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Di  | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | chlop | Median     | from time  | labo   | received.**   |
| 93 |    | rop** | Recovery   | periods    | ratory |               |
| 02 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **90.4     |            | rved** |               |
|    |    |       | [+]{.      | **94.9     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 10.3 to    | underline} |        |               |
|    |    |       | 88.5       | 18.6 to    |        |               |
|    |    |       | [+]{.      | 94.4       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.1**     | underline} |        |               |
|    |    |       |            | 13**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Median   | **Large    | **No   | **Need to     |
| *4 |    | *Dino | recovery   | decrease   | labo   | Qualify all   |
| 93 |    | seb** | and        | in         | ratory | results after |
| 01 |    |       | standard   | standard   | blank  | July 31, 2002 |
| ** |    |       | deviations | deviation  | c      | with an "E"   |
|    |    |       | changed.** | after July | ontrib | code due to   |
|    |    |       |            | 31,        | utions | reduction in  |
|    |    |       | **80       | 2002.**    | obse   | set spike     |
|    |    |       | [+]{.      |            | rved** | median        |
|    |    |       | underline} | **82.5     |        | recovery.**   |
|    |    |       | 23.9 to    | [+]{.      |        |               |
|    |    |       | 49.3       | underline} |        | **Remove      |
|    |    |       | [+]{.      | 34.4 to    |        | routine E     |
|    |    |       | underline} | 78.4       |        | code from     |
|    |    |       | 18.3**     | [+]{.      |        | data after    |
|    |    |       |            | underline} |        | September 30, |
|    |    |       | **I        | 17.5**     |        | 2004.**       |
|    |    |       | mprovement |            |        |               |
|    |    |       | of Median  |            |        |               |
|    |    |       | Recovery   |            |        |               |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **M   | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | CPA** | Median     | from time  | labo   | received.**   |
| 84 |    |       | Recovery   | periods    | ratory |               |
| 82 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **80.1     |            | rved** |               |
|    |    |       | [+]{.      | **92.3     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 11.6 to 87 | underline} |        |               |
|    |    |       | [+]{.      | 19.8 to    |        |               |
|    |    |       | underline} | 87.2       |        |               |
|    |    |       | 11.7**     | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 11.9**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **M   | **Medians  | **Data     | **No   | **Remove      |
| *3 | *E | CPB** | recovery   | from time  | labo   | routine E     |
| 84 | ** |       | and        | periods    | ratory | code from     |
| 87 |    |       | standard   | not        | blank  | data after    |
| ** |    |       | deviations | sta        | c      | July 31,      |
|    |    |       | i          | tistically | ontrib | 2002.**       |
|    |    |       | mproved.** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **70.8     |            | rved** |               |
|    |    |       | [+]{.      | **81       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 27.3 to    | underline} |        |               |
|    |    |       | 76.6       | 19.2 to    |        |               |
|    |    |       | [+]{.      | 80.2       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 16.8**     | underline} |        |               |
|    |    |       |            | 18**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | Piclo | Median     | from time  | labo   | received.**   |
| 92 |    | ram** | Recovery   | periods    | ratory |               |
| 91 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **88.1     |            | rved** |               |
|    |    |       | [+]{.      | **86       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 18.4 to    | underline} |        |               |
|    |    |       | 84.7       | 22.3 to    |        |               |
|    |    |       | [+]{.      | 82.9       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 16**       | underline} |        |               |
|    |    |       |            | 17.4**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **T   | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | riclo | Median     | from time  | labo   | received.**   |
| 92 |    | pyr** | Recovery   | periods    | ratory |               |
| 35 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **92.6     |            | rved** |               |
|    |    |       | [+]{.      | **98.2     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.1 to    | underline} |        |               |
|    |    |       | 92.8       | 21.4 to    |        |               |
|    |    |       | [+]{.      | 94.9       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 11.3**     | underline} |        |               |
|    |    |       |            | 14.5**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **2,  | **Meets    | **Increase | **No   | **Use data as |
| *9 |    | 4,5-T | Median     | in         | labo   | received.**   |
| 99 |    | (Su   | Recovery   | standard   | ratory |               |
| 58 |    | rroga | and        | deviation  | blank  |               |
| ** |    | te)** | Standard   | after July | c      |               |
|    |    |       | Deviation  | 31,        | ontrib |               |
|    |    |       | Criteria** | 2002.**    | utions |               |
|    |    |       |            |            | obse   |               |
|    |    |       | **78.1     | **73.5     | rved** |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 10.8 to    | 9.3 to 81  |        |               |
|    |    |       | 87.1       | [+]{.      |        |               |
|    |    |       | [+]{.      | underline} |        |               |
|    |    |       | underline} | 17.1**     |        |               |
|    |    |       | 16.4**     |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
|    |    |       |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | 2,4-D | Median     | from time  | labo   | received.**   |
| 04 |    | M     | Recovery   | periods    | ratory |               |
| 70 |    | ethyl | and        | not        | blank  |               |
| ** |    | Es    | Standard   | sta        | c      |               |
|    |    | ter** | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **76.8     |            | rved** |               |
|    |    |       | [+]{.      | **69.9     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15.7 to    | underline} |        |               |
|    |    |       | 68.6       | 30.6 to    |        |               |
|    |    |       | [+]{.      | 80.5       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.6**     | underline} |        |               |
|    |    |       |            | 41.6**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **3(4 | **Meets    | **Data     | **No   | **Use data as |
| *6 |    | -chlo | Median     | from time  | labo   | received.**   |
| 16 |    | rophe | Recovery   | periods    | ratory |               |
| 92 |    | nyl)m | and        | not        | blank  |               |
| ** |    | ethyl | Standard   | sta        | c      |               |
|    |    | u     | Deviation  | tistically | ontrib |               |
|    |    | rea** | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **99       |            | rved** |               |
|    |    |       | [+]{.      | **65.8     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 9.3 to     | underline} |        |               |
|    |    |       | 90.4       | 18.5 to 81 |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 14**       | 27.8**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **3   | **Standard | **Increase | **No   | **All data    |
| *5 | *E | -Keto | deviation  | in Median  | labo   | should        |
| 02 | ** | Ca    | changed.** | Recovery   | ratory | continue to   |
| 95 |    | rbofu |            | and        | blank  | be E coded.   |
| ** |    | ran** | **34       | standard   | c      | Laboratory    |
|    |    |       | [+]{.      | deviation  | ontrib | set spike     |
|    |    |       | underline} | after July | utions | median        |
|    |    |       | 21.1 to    | 31,        | obse   | recoveries    |
|    |    |       | 30.4       | 2002.**    | rved** | may not       |
|    |    |       | [+]{.      |            |        | reflect       |
|    |    |       | underline} | **20.6     |        | recoveries in |
|    |    |       | 26.4**     | [+]{.      |        | matrices.**   |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 18.7 to    |        |               |
|    |    |       |            | 35.8       |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 41.7       |        |               |
|    |    |       |            | Sample     |        |               |
|    |    |       |            | matrices   |        |               |
|    |    |       |            | show some  |        |               |
|    |    |       |            | pr         |        |               |
|    |    |       |            | eservation |        |               |
|    |    |       |            | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | *3-OH | Median     | from time  | labo   | received.**   |
| 93 |    | Ca    | Recovery   | periods    | ratory |               |
| 08 |    | rbofu | and        | not        | blank  |               |
| ** |    | ran** | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **84.5     |            | rved** |               |
|    |    |       | [+]{.      | **89.7     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 9.7 to     | underline} |        |               |
|    |    |       | 80.5       | 18.1 to    |        |               |
|    |    |       | [+]{.      | 91.1       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 13.4**     | underline} |        |               |
|    |    |       |            | 25.3**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Ald | **Median   | **Data     | **No   | **All data    |
| *4 | *E | icarb | recovery   | from time  | labo   | should        |
| 93 | ** | S     | changed.** | periods    | ratory | continue to   |
| 14 |    | ulfox |            | not        | blank  | be E coded.   |
| ** |    | ide** | **58.6     | sta        | c      | Laboratory    |
|    |    |       | [+]{.      | tistically | ontrib | set spike     |
|    |    |       | underline} | d          | utions | median        |
|    |    |       | 26.7 to    | ifferent** | obse   | recoveries    |
|    |    |       | 12.2       |            | rved** | may not       |
|    |    |       | [+]{.      | **63.3     |        | reflect       |
|    |    |       | underline} | [+]{.      |        | recoveries in |
|    |    |       | 23.1**     | underline} |        | matrices.**   |
|    |    |       |            | 31 to 54   |        |               |
|    |    |       | **I        | [+]{.      |        | **Remove      |
|    |    |       | mprovement | underline} |        | routine E     |
|    |    |       | of Median  | 42.4**     |        | code from     |
|    |    |       | Recovery   |            |        | data after    |
|    |    |       | and/or     | **Sample   |        | September 30, |
|    |    |       | Standard   | matrices   |        | 2004.**       |
|    |    |       | Deviation  | show some  |        |               |
|    |    |       | after      | pr         |        |               |
|    |    |       | September  | eservation |        |               |
|    |    |       | 30,        | effect.**  |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **    | **Median   | **Data     | **No   | **All data    |
| *4 | *E | Aldic | recovery   | from time  | labo   | should        |
| 93 | ** | arb** | and        | periods    | ratory | continue to   |
| 12 |    |       | standard   | not        | blank  | be E coded.   |
| ** |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **16.4     | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **29.4     |        | reflect       |
|    |    |       | 22.3 to 0  | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 16.4 to    |        |               |
|    |    |       | 14.3**     | 36.1       |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 38.9**     |        |               |
|    |    |       |            |            |        |               |
|    |    |       |            | **Sample   |        |               |
|    |    |       |            | matrices   |        |               |
|    |    |       |            | show some  |        |               |
|    |    |       |            | pr         |        |               |
|    |    |       |            | eservation |        |               |
|    |    |       |            | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Ald | **Median   | **Data     | **No   | **All data    |
| *4 | *E | icarb | recovery   | from time  | labo   | should        |
| 93 | ** | Sulf  | and        | periods    | ratory | continue to   |
| 13 |    | one** | standard   | not        | blank  | be E coded.   |
| ** |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **62       | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **42.6     |        | reflect       |
|    |    |       | 19.1 to 58 | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 19.7 to    |        |               |
|    |    |       | 15.6**     | 47.5       |        | **Remove      |
|    |    |       |            | [+]{.      |        | routine E     |
|    |    |       | **I        | underline} |        | code from     |
|    |    |       | mprovement | 29.8**     |        | data after    |
|    |    |       | of Median  |            |        | September 30, |
|    |    |       | Recovery   |            |        | 2004.**       |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | Atraz | Median     | from time  | labo   | received.**   |
| 96 |    | ine** | Recovery   | periods    | ratory |               |
| 32 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **82.1     |            | rved** |               |
|    |    |       | [+]{.      | **79.8     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 18.8 to    | underline} |        |               |
|    |    |       | 76.2       | 24.3 to    |        |               |
|    |    |       | [+]{.      | 87.9       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 16.8**     | underline} |        |               |
|    |    |       |            | 35.8**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Be  | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | ndioc | Median     | from time  | labo   | received.**   |
| 02 |    | arb** | Recovery   | periods    | ratory |               |
| 99 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **75.5     |            | rved** |               |
|    |    |       | [+]{.      | **69.5     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.8 to 70 | underline} |        |               |
|    |    |       | [+]{.      | 21.7 to    |        |               |
|    |    |       | underline} | 78.1       |        |               |
|    |    |       | 15.6**     | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 35.6**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Median   | **Data     | **No   | **Need to     |
| *5 |    | *Beno | recovery   | from time  | labo   | Qualify all   |
| 03 |    | myl** | and        | periods    | ratory | results after |
| 00 |    |       | standard   | not        | blank  | July 31, 2002 |
| ** |    |       | deviations | sta        | c      | with an "E"   |
|    |    |       | changed.** | tistically | ontrib | code due to   |
|    |    |       |            | d          | utions | reduction in  |
|    |    |       | **92.6     | ifferent** | obse   | set spike     |
|    |    |       | [+]{.      |            | rved** | median        |
|    |    |       | underline} | **98       |        | recovery (\<  |
|    |    |       | 23.2 to    | [+]{.      |        | 60%). And     |
|    |    |       | 47.6       | underline} |        | increase in   |
|    |    |       | [+]{.      | 38.8 to    |        | set spike     |
|    |    |       | underline} | 75.4       |        | standard      |
|    |    |       | 34**       | [+]{.      |        | deviation.**  |
|    |    |       |            | underline} |        |               |
|    |    |       | **I        | 51.3**     |        | **Remove      |
|    |    |       | mprovement |            |        | routine E     |
|    |    |       | of Median  | **Sample   |        | code from     |
|    |    |       | Recovery   | matrices   |        | data after    |
|    |    |       | and/or     | show some  |        | September 30, |
|    |    |       | Standard   | pr         |        | 2004.**       |
|    |    |       | Deviation  | eservation |        |               |
|    |    |       | after      | effect.**  |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Be  | **Median   | **Data     | **No   | **Need to     |
| *6 |    | nsulf | recovery   | from time  | labo   | Qualify all   |
| 16 |    | uron, | and        | periods    | ratory | results after |
| 93 |    | met   | standard   | not        | blank  | July 31, 2002 |
| ** |    | hyl** | deviations | sta        | c      | with an "E"   |
|    |    |       | changed.** | tistically | ontrib | code due to   |
|    |    |       |            | d          | utions | \> 25 %       |
|    |    |       | **142      | ifferent** | obse   | standard      |
|    |    |       | [+]{.      |            | rved** | deviation in  |
|    |    |       | underline} | **159      |        | set spikes.** |
|    |    |       | 30.1 to    | [+]{.      |        |               |
|    |    |       | 94.9       | underline} |        | **Remove      |
|    |    |       | [+]{.      | 83.8 to    |        | routine E     |
|    |    |       | underline} | 176        |        | code from     |
|    |    |       | 35**       | [+]{.      |        | data after    |
|    |    |       |            | underline} |        | September 30, |
|    |    |       | **I        | 100**      |        | 2004.**       |
|    |    |       | mprovement |            |        |               |
|    |    |       | of Median  |            |        |               |
|    |    |       | Recovery   |            |        |               |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| ** | *  | **    | **Median   | **Data     | **No   | **All data    |
| 40 | *E | Broma | recovery   | from time  | labo   | should        |
| 29 | ** | cil** | and        | periods    | ratory | continue to   |
| ** |    |       | standard   | not        | blank  | be E coded.   |
|    |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | medians       |
|    |    |       | **92       | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **57       |        | reflect       |
|    |    |       | 24.1 to    | [+]{.      |        | recoveries in |
|    |    |       | 24.7       | underline} |        | matrices.**   |
|    |    |       | [+]{.      | 23 to 52   |        |               |
|    |    |       | underline} | [+]{.      |        | **Remove      |
|    |    |       | 30.1**     | underline} |        | routine E     |
|    |    |       |            | 27.5**     |        | code from     |
|    |    |       | **I        |            |        | data after    |
|    |    |       | mprovement | **Sample   |        | September 30, |
|    |    |       | of Median  | matrices   |        | 2004.**       |
|    |    |       | Recovery   | show some  |        |               |
|    |    |       | and/or     | pr         |        |               |
|    |    |       | Standard   | eservation |        |               |
|    |    |       | Deviation  | effect.**  |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | Caffe | Median     | from time  | labo   | received.**   |
| 03 |    | ine** | Recovery   | periods    | ratory |               |
| 05 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **97.6     |            | rved** |               |
|    |    |       | [+]{.      | **82.8     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 16.9 to    | underline} |        |               |
|    |    |       | 91.6       | 29.8 to    |        |               |
|    |    |       | [+]{.      | 91.8       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15.9**     | underline} |        |               |
|    |    |       |            | 28.7**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | Carba | Median     | from time  | labo   | received.**   |
| 93 |    | ryl** | Recovery   | periods    | ratory |               |
| 10 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **87.6     |            | rved** |               |
|    |    |       | [+]{.      | **97.8     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 11.8 to    | underline} |        |               |
|    |    |       | 79.6       | 18.7 to    |        |               |
|    |    |       | [+]{.      | 93.7       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.5**     | underline} |        |               |
|    |    |       |            | 36.4**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Ca  | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | rbofu | Median     | from time  | labo   | received.**   |
| 93 |    | ran** | Recovery   | periods    | ratory |               |
| 09 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **86.8     |            | rved** |               |
|    |    |       | [+]{.      | **96.9     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 10.6 to    | underline} |        |               |
|    |    |       | 79.1       | 16.8 to    |        |               |
|    |    |       | [+]{.      | 100        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.5**     | underline} |        |               |
|    |    |       |            | 27**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **C   | **Median   | **Large    | **No   | **All data    |
| *6 | *E | hlora | recovery   | Drop in    | labo   | should        |
| 11 | ** | mben, | changed.** | Recovery   | ratory | continue to   |
| 88 |    | m     |            | after July | blank  | be E coded.   |
| ** |    | ethyl | **75.8     | 31,        | c      | Laboratory    |
|    |    | es    | [+]{.      | 2002.**    | ontrib | set spike     |
|    |    | ter** | underline} |            | utions | median        |
|    |    |       | 23.6 to    | **89.2     | obse   | recoveries    |
|    |    |       | 17.8       | [+]{.      | rved** | may not       |
|    |    |       | [+]{.      | underline} |        | reflect       |
|    |    |       | underline} | 24.1 to    |        | recoveries in |
|    |    |       | 22.5**     | 57.6       |        | matrices.**   |
|    |    |       |            | [+]{.      |        |               |
|    |    |       | **I        | underline} |        | **Remove      |
|    |    |       | mprovement | 24. Sample |        | routine E     |
|    |    |       | of Median  | matrices   |        | code from     |
|    |    |       | Recovery   | show some  |        | data after    |
|    |    |       | and/or     | pr         |        | September 30, |
|    |    |       | Standard   | eservation |        | 2004.**       |
|    |    |       | Deviation  | effect.**  |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Ch  | **Median   | **Data     | **No   | **Need to     |
| *5 |    | lorim | recovery   | from time  | labo   | Qualify all   |
| 03 |    | uron, | changed.** | periods    | ratory | results after |
| 06 |    | et    |            | not        | blank  | July 31, 2002 |
| ** |    | hyl** | **200      | sta        | c      | with an "E"   |
|    |    |       | [+]{.      | tistically | ontrib | code due to   |
|    |    |       | underline} | d          | utions | standard      |
|    |    |       | 64.2 to    | ifferent** | obse   | deviations**  |
|    |    |       | 181        |            | rved** |               |
|    |    |       | [+]{.      | **153      |        | **\> 25 % and |
|    |    |       | underline} | [+]{.      |        | enhanced      |
|    |    |       | 66.2**     | underline} |        | median        |
|    |    |       |            | 97.6 to    |        | recovery.**   |
|    |    |       |            | 170        |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 175**      |        |               |
+----+----+-------+------------+------------+--------+---------------+
| ** | *  | **    | **Median   | **Data     | **No   | **All data    |
| 40 | *E | Cyclo | recovery   | from time  | labo   | should        |
| 31 | ** | ate** | and        | periods    | ratory | continue to   |
| ** |    |       | standard   | not        | blank  | be E coded.   |
|    |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **64.4     | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **68.8     |        | reflect       |
|    |    |       | 27.5 to    | [+]{.      |        | recoveries in |
|    |    |       | 5.4        | underline} |        | matrices.**   |
|    |    |       | [+]{.      | 37.3 to    |        |               |
|    |    |       | underline} | 84.9       |        | **Remove      |
|    |    |       | 19.1**     | [+]{.      |        | routine E     |
|    |    |       |            | underline} |        | code from     |
|    |    |       | **I        | 46.1**     |        | data after    |
|    |    |       | mprovement |            |        | September 30, |
|    |    |       | of Median  | **Sample   |        | 2004.**       |
|    |    |       | Recovery   | matrices   |        |               |
|    |    |       | and/or     | show some  |        |               |
|    |    |       | Standard   | pr         |        |               |
|    |    |       | Deviation  | eservation |        |               |
|    |    |       | after      | effect.**  |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| ** | *  | **Des | **Standard | **Data     | **No   | **Remove      |
| 40 | *E | ethyl | deviation  | from time  | labo   | routine E     |
| 40 | ** | Atraz | i          | periods    | ratory | code from     |
| ** |    | ine** | mproved.** | not        | blank  | data after    |
|    |    |       |            | sta        | c      | July 31,      |
|    |    |       | **72.6     | tistically | ontrib | 2002.**       |
|    |    |       | [+]{.      | d          | utions |               |
|    |    |       | underline} | ifferent** | obse   |               |
|    |    |       | 23.5 to    |            | rved** |               |
|    |    |       | 72.2       | **57.6     |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 19.8**     | 19.4 to    |        |               |
|    |    |       |            | 66.4       |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 31.9**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| ** | *  | **Des | **Median   | # Not in F | **Det  | **All data    |
| 40 | *E | ethyl | recovery   | ield Mixes | ection | should        |
| 39 | ** | D     | and        |            | in set | continue to   |
| ** |    | esiso | Standard   |            | blanks | be E coded    |
|    |    | Atraz | Deviations |            | at or  | due to median |
|    |    | ine** | were not   |            | g      | recovery \<   |
|    |    |       | sta        |            | reater | 60 %.         |
|    |    |       | tistically |            | than** | Reporting     |
|    |    |       | d          |            |        | level should  |
|    |    |       | ifferent** |            | **10 % | be raised to  |
|    |    |       |            |            | (11.   | 0.022 ug/l    |
|    |    |       | **47       |            | 15%)** | based on ten  |
|    |    |       | [+]{.      |            |        | times the set |
|    |    |       | underline} |            |        | blank 95^th^  |
|    |    |       | 17.2 to    |            |        | percentile    |
|    |    |       | 46.5       |            |        | confidence    |
|    |    |       | [+]{.      |            |        | level         |
|    |    |       | underline} |            |        | ca            |
|    |    |       | 19.4**     |            |        | lculations.** |
+----+----+-------+------------+------------+--------+---------------+
| ** | *  | **De  | **Median   | **Data     | **No   | **All data    |
| 40 | *E | sisop | recovery   | from time  | labo   | should        |
| 38 | ** | ropyl | and        | periods    | ratory | continue to   |
| ** |    | Atraz | Standard   | not        | blank  | be E coded.   |
|    |    | ine** | Deviations | sta        | c      | Laboratory    |
|    |    |       | were not   | tistically | ontrib | set spike     |
|    |    |       | sta        | d          | utions | median        |
|    |    |       | tistically | ifferent** | obse   | recoveries    |
|    |    |       | di         |            | rved** | may not       |
|    |    |       | fferent.** | **59.4     |        | reflect       |
|    |    |       |            | [+]{.      |        | recoveries in |
|    |    |       | **62.8     | underline} |        | matrices.**   |
|    |    |       | [+]{.      | 20.7 to    |        |               |
|    |    |       | underline} | 68.1       |        |               |
|    |    |       | 21.5 to 65 | [+]{.      |        |               |
|    |    |       | [+]{.      | underline} |        |               |
|    |    |       | underline} | 36.6**     |        |               |
|    |    |       | 19.7**     |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| ** |    | **Di  | **Meets    | **Data     | **No   | **Use data as |
| 40 |    | phena | Median     | from time  | labo   | received.**   |
| 33 |    | mid** | Recovery   | periods    | ratory |               |
| ** |    |       | and        | not        | blank  |               |
|    |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **84.9     |            | rved** |               |
|    |    |       | [+]{.      | **101      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 13.5 to    | underline} |        |               |
|    |    |       | 78.4       | 28.9 to    |        |               |
|    |    |       | [+]{.      | 113        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 13.3**     | underline} |        |               |
|    |    |       |            | 39.2**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Diu | **Meets    | **Data     | **Det  | **Use data as |
| *4 |    | ron** | Median     | from time  | ection | received with |
| 93 |    |       | Recovery   | periods    | in set | the report    |
| 00 |    |       | and        | not        | blanks | level raised  |
| ** |    |       | Standard   | sta        | at or  | to 0.015 ug/l |
|    |    |       | Deviation  | tistically | g      | based on ten  |
|    |    |       | Criteria** | d          | reater | times the set |
|    |    |       |            | ifferent** | than** | blank 95^th^  |
|    |    |       | **91.9     |            |        | percentile    |
|    |    |       | [+]{.      | **103      | **10 % | confidence    |
|    |    |       | underline} | [+]{.      | (23    | level         |
|    |    |       | 11.4 to    | underline} | .8%)** | ca            |
|    |    |       | 85.1       | 27.2 to    |        | lculations.** |
|    |    |       | [+]{.      | 105        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.5**     | underline} |        |               |
|    |    |       |            | 32.3**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Median   | **Data     | **Det  | **Need to     |
| *4 |    | *Fenu | recovery   | from time  | ection | Qualify all   |
| 92 |    | ron** | and        | periods    | in set | Results after |
| 97 |    |       | Standard   | not        | blanks | July 31, 2002 |
| ** |    |       | Deviation  | sta        | at or  | with an "E"   |
|    |    |       | Criteria   | tistically | g      | code due to   |
|    |    |       | changed**  | d          | reater | reduction in  |
|    |    |       |            | ifferent** | than** | set spike     |
|    |    |       | **88.8     |            |        | median        |
|    |    |       | [+]{.      | **94.9     | **10 % | recovery (\<  |
|    |    |       | underline} | [+]{.      | (42    | 60%).**       |
|    |    |       | 14.7 to    | underline} | .1%)** |               |
|    |    |       | 51.9       | 24.4 to    |        | **Reporting   |
|    |    |       | [+]{.      | 91.8       |        | level should  |
|    |    |       | underline} | [+]{.      |        | be raised to  |
|    |    |       | 21.2**     | underline} |        | 0.032 ug/l    |
|    |    |       |            | 42.2**     |        | based on ten  |
|    |    |       | **I        |            |        | times set     |
|    |    |       | mprovement |            |        | blank 95^th^  |
|    |    |       | of Median  |            |        | percentile    |
|    |    |       | Recovery   |            |        | confidence    |
|    |    |       | and/or     |            |        | level         |
|    |    |       | Standard   |            |        | ca            |
|    |    |       | Deviation  |            |        | lculations.** |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        | **Remove      |
|    |    |       | 30,        |            |        | routine E     |
|    |    |       | 2004.**    |            |        | code from     |
|    |    |       |            |            |        | data after    |
|    |    |       |            |            |        | September 30, |
|    |    |       |            |            |        | 2004.**       |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Flu | **Medians  | **Data     | **No   | **All data    |
| *6 | *E | metsu | and        | from time  | labo   | should        |
| 16 | ** | lam** | standard   | periods    | ratory | continue to   |
| 94 |    |       | deviations | not        | blank  | be E coded.   |
| ** |    |       | changed.** | sta        | c      | Laboratory    |
|    |    |       |            | tistically | ontrib | set spike     |
|    |    |       | **136      | d          | utions | median        |
|    |    |       | [+]{.      | ifferent** | obse   | recoveries    |
|    |    |       | underline} |            | rved** | may not       |
|    |    |       | 27.9 to    | **134      |        | reflect       |
|    |    |       | 91.2       | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 34.4 to    |        |               |
|    |    |       | 35.1**     | 133        |        | **Remove      |
|    |    |       |            | [+]{.      |        | routine E     |
|    |    |       | **I        | underline} |        | code from     |
|    |    |       | mprovement | 62**       |        | data after    |
|    |    |       | of Median  |            |        | September 30, |
|    |    |       | Recovery   |            |        | 2004.**       |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Flu | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | ometu | Median     | from time  | labo   | received.**   |
| 88 |    | ron** | Recovery   | periods    | ratory |               |
| 11 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **88.3     |            | rved** |               |
|    |    |       | [+]{.      | **100      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 7.7 to     | underline} |        |               |
|    |    |       | 80.8       | 16.7 to    |        |               |
|    |    |       | [+]{.      | 103        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 13.8**     | underline} |        |               |
|    |    |       |            | 27.1**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Hyd | **Median   | **Data     | **No   | **All data    |
| *5 | *E | roxy- | recovery   | from time  | labo   | should        |
| 03 | ** | Atraz | changed.** | periods    | ratory | continue to   |
| 55 |    | ine** |            | not        | blank  | be E coded.   |
| ** |    |       | **107      | sta        | c      | Laboratory    |
|    |    |       | [+]{.      | tistically | ontrib | set spike     |
|    |    |       | underline} | d          | utions | median        |
|    |    |       | 20 to 93.7 | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **Low      |        | reflect       |
|    |    |       | 21.4**     | recovery   |        | recoveries in |
|    |    |       |            | from all   |        | matrices.**   |
|    |    |       | **I        | m          |        |               |
|    |    |       | mprovement | atrices.** |        | **Remove      |
|    |    |       | of Median  |            |        | routine E     |
|    |    |       | Recovery   | **12.2     |        | code from     |
|    |    |       | and/or     | [+]{.      |        | data after    |
|    |    |       | Standard   | underline} |        | September 30, |
|    |    |       | Deviation  | 29.1 to    |        | 2004.**       |
|    |    |       | after      | 5.3        |        |               |
|    |    |       | September  | [+]{.      |        |               |
|    |    |       | 30,        | underline} |        |               |
|    |    |       | 2004.**    | 21.4**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **I   | **Medians  | **Data     | **No   | **All data    |
| *5 | *E | mazaq | and        | from time  | labo   | should        |
| 03 | ** | uin** | standard   | periods    | ratory | continue to   |
| 56 |    |       | deviations | not        | blank  | be E coded.   |
| ** |    |       | changed.** | sta        | c      | Laboratory    |
|    |    |       |            | tistically | ontrib | set spike     |
|    |    |       | **134      | d          | utions | median        |
|    |    |       | [+]{.      | ifferent** | obse   | recoveries    |
|    |    |       | underline} |            | rved** | may not       |
|    |    |       | 33.6 to    | **144      |        | reflect       |
|    |    |       | 123        | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 37.5 to    |        |               |
|    |    |       | 44.1**     | 145        |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 49.3**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Ima | **Medians  | **Data     | **No   | **All data    |
| *5 | *E | zetha | and        | from time  | labo   | should        |
| 04 | ** | pyr** | Standard   | periods    | ratory | continue to   |
| 07 |    |       | Deviations | not        | blank  | be E coded.   |
| ** |    |       | were not   | sta        | c      | Laboratory    |
|    |    |       | sta        | tistically | ontrib | set spike     |
|    |    |       | tistically | d          | utions | median        |
|    |    |       | di         | ifferent** | obse   | recoveries    |
|    |    |       | fferent.** |            | rved** | may not       |
|    |    |       |            | **122      |        | reflect       |
|    |    |       | **113      | [+]{.      |        | recoveries in |
|    |    |       | [+]{.      | underline} |        | matrices.**   |
|    |    |       | underline} | 41.5 to    |        |               |
|    |    |       | 28.9 to    | 139        |        | **Remove      |
|    |    |       | 108        | [+]{.      |        | routine E     |
|    |    |       | [+]{.      | underline} |        | code from     |
|    |    |       | underline} | 32.2**     |        | data after    |
|    |    |       | 34.**      |            |        | September 30, |
|    |    |       |            |            |        | 2004.**       |
|    |    |       | **I        |            |        |               |
|    |    |       | mprovement |            |        |               |
|    |    |       | of Median  |            |        |               |
|    |    |       | Recovery   |            |        |               |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *6 |    | *Imid | Median     | from time  | labo   | received.**   |
| 16 |    | aclop | Recovery   | periods    | ratory |               |
| 95 |    | rid** | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **122      |            | rved** |               |
|    |    |       | [+]{.      | **96.5     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 18.2 to    | underline} |        |               |
|    |    |       | 105        | 27.4 to    |        |               |
|    |    |       | [+]{.      | 129        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 19.8**     | underline} |        |               |
|    |    |       |            | 42.8**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | *Linu | Median     | from time  | labo   | received.**   |
| 84 |    | ron** | Recovery   | periods    | ratory |               |
| 78 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **87.6     |            | rved** |               |
|    |    |       | [+]{.      | **98.7     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 11.2 to    | underline} |        |               |
|    |    |       | 82.4       | 26 to 109  |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 13**       | 30.8**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **M   | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | etala | Median     | from time  | labo   | received.**   |
| 03 |    | xyl** | Recovery   | periods    | ratory |               |
| 59 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **81.7     |            | rved** |               |
|    |    |       | [+]{.      | **100      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 11.3 to    | underline} |        |               |
|    |    |       | 74.2       | 31.1 to    |        |               |
|    |    |       | [+]{.      | 106        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.8**     | underline} |        |               |
|    |    |       |            | 46.6**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Me  | **Median   | **Data     | **No   | **All data    |
| *3 | *E | thioc | recovery   | from time  | labo   | should        |
| 85 | ** | arb** | and        | periods    | ratory | continue to   |
| 01 |    |       | standard   | not        | blank  | be E coded.   |
| ** |    |       | deviations | sta        | c      | Laboratory    |
|    |    |       | changed.** | tistically | ontrib | set spike     |
|    |    |       |            | d          | utions | median        |
|    |    |       | **82.3     | ifferent** | obse   | recoveries    |
|    |    |       | [+]{.      |            | rved** | may not       |
|    |    |       | underline} | **Sample   |        | reflect       |
|    |    |       | 32.1 to 4  | matrices   |        | recoveries in |
|    |    |       | [+]{.      | show some  |        | matrices.**   |
|    |    |       | underline} | pr         |        |               |
|    |    |       | 26.1**     | eservation |        | **Remove      |
|    |    |       |            | effect.**  |        | routine E     |
|    |    |       | **I        |            |        | code from     |
|    |    |       | mprovement | **98.4     |        | data after    |
|    |    |       | of Median  | [+]{.      |        | September 30, |
|    |    |       | Recovery   | underline} |        | 2004.**       |
|    |    |       | and/or     | 37.7 to    |        |               |
|    |    |       | Standard   | 92.6       |        |               |
|    |    |       | Deviation  | [+]{.      |        |               |
|    |    |       | after      | underline} |        |               |
|    |    |       | September  | 49.6**     |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Median   | **Data     | **No   | **Need to     |
| *4 |    | Metho | recovery   | from time  | labo   | Qualify all   |
| 92 |    | myl** | changed.** | periods    | ratory | Results after |
| 96 |    |       |            | not        | blank  | July 31, 2002 |
| ** |    |       | **77.4     | sta        | c      | with an "E"   |
|    |    |       | [+]{.      | tistically | ontrib | code due to   |
|    |    |       | underline} | d          | utions | reduction in  |
|    |    |       | 27.7 to    | ifferent** | obse   | median        |
|    |    |       | 7.5        |            | rved** | recovery      |
|    |    |       | [+]{.      | **92.3     |        | (\<60%).      |
|    |    |       | underline} | [+]{.      |        | Laboratory    |
|    |    |       | 27**       | underline} |        | set spike     |
|    |    |       |            | 33.6 to    |        | median        |
|    |    |       | **I        | 72.7       |        | recoveries    |
|    |    |       | mprovement | [+]{.      |        | may not       |
|    |    |       | of Median  | underline} |        | reflect       |
|    |    |       | Recovery   | 43.8**     |        | recoveries in |
|    |    |       | and/or     |            |        | matrices.**   |
|    |    |       | Standard   | **Sample   |        |               |
|    |    |       | Deviation  | matrices   |        | **Remove      |
|    |    |       | after      | show some  |        | routine E     |
|    |    |       | September  | pr         |        | code from     |
|    |    |       | 30,        | eservation |        | data after    |
|    |    |       | 2004.**    | effect.**  |        | September 30, |
|    |    |       |            |            |        | 2004.**       |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Me  | **Standard | **Data     | **No   | **All data    |
| *6 | *E | tsulf | deviations | from time  | labo   | should        |
| 16 | ** | uron, | changed.** | periods    | ratory | continue to   |
| 97 |    | met   |            | not        | blank  | be E coded.   |
| ** |    | hyl** | **43.9     | sta        | c      | Laboratory    |
|    |    |       | [+]{.      | tistically | ontrib | set spike     |
|    |    |       | underline} | d          | utions | median        |
|    |    |       | 32.7 to    | ifferent** | obse   | recoveries    |
|    |    |       | 39.5       |            | rved** | may not       |
|    |    |       | [+]{.      | **62.6     |        | reflect       |
|    |    |       | underline} | [+]{.      |        | recoveries in |
|    |    |       | 26.7**     | underline} |        | matrices.**   |
|    |    |       |            | 40.1 to 84 |        |               |
|    |    |       |            | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 65.2**     |        |               |
|    |    |       |            |            |        |               |
|    |    |       |            | **Sample   |        |               |
|    |    |       |            | matrices   |        |               |
|    |    |       |            | show some  |        |               |
|    |    |       |            | pr         |        |               |
|    |    |       |            | eservation |        |               |
|    |    |       |            | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | *Nebu | Median     | from time  | labo   | received.**   |
| 92 |    | ron** | Recovery   | periods    | ratory |               |
| 94 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **92.7     |            | rved** |               |
|    |    |       | [+]{.      | **104      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 13.9 to 84 | underline} |        |               |
|    |    |       | [+]{.      | 44.3 to    |        |               |
|    |    |       | underline} | 112        |        |               |
|    |    |       | 13.1**     | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 38.1**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Median   | **Data     | **No   | **Need to     |
| *5 |    | *Nico | recovery   | from time  | labo   | Qualify all   |
| 03 |    | sulfu | and        | periods    | ratory | Results after |
| 64 |    | ron** | Standard   | not        | blank  | July 31, 2002 |
| ** |    |       | Deviations | sta        | c      | with an "E"   |
|    |    |       | were not   | tistically | ontrib | code due to   |
|    |    |       | sta        | d          | utions | set spike     |
|    |    |       | tistically | ifferent** | obse   | standard      |
|    |    |       | di         |            | rved** | deviation \>  |
|    |    |       | fferent.** | **175      |        | 25% and       |
|    |    |       |            | [+]{.      |        | enhanced      |
|    |    |       | **180      | underline} |        | median        |
|    |    |       | [+]{.      | 81.2 to    |        | recovery**    |
|    |    |       | underline} | 225        |        |               |
|    |    |       | 48 to 136  | [+]{.      |        |               |
|    |    |       | [+]{.      | underline} |        |               |
|    |    |       | underline} | 121**      |        |               |
|    |    |       | 60.1**     |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **Nor | **Median   | **Data     | **No   | **All data    |
| *4 | *E | flura | recovery   | from time  | labo   | should        |
| 92 | ** | zon** | changed**  | periods    | ratory | continue to   |
| 93 |    |       |            | not        | blank  | be E coded.   |
| ** |    |       | **90.4     | sta        | c      | Laboratory    |
|    |    |       | [+]{.      | tistically | ontrib | set spike     |
|    |    |       | underline} | d          | utions | median        |
|    |    |       | 20.5 to    | ifferent** | obse   | recoveries    |
|    |    |       | 42.8       |            | rved** | may not       |
|    |    |       | [+]{.      | **113      |        | reflect       |
|    |    |       | underline} | [+]{.      |        | recoveries in |
|    |    |       | 23.7**     | underline} |        | matrices.**   |
|    |    |       |            | 31.9 to    |        |               |
|    |    |       | **I        | 113        |        | **Remove      |
|    |    |       | mprovement | [+]{.      |        | routine E     |
|    |    |       | of Median  | underline} |        | code from     |
|    |    |       | Recovery   | 32.5**     |        | data after    |
|    |    |       | and/or     |            |        | September 30, |
|    |    |       | Standard   | **Sample   |        | 2004.**       |
|    |    |       | Deviation  | matrices   |        |               |
|    |    |       | after      | show some  |        |               |
|    |    |       | September  | pr         |        |               |
|    |    |       | 30,        | eservation |        |               |
|    |    |       | 2004.**    | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Median   | **Data     | **No   | **Need to     |
| *4 |    | Oryza | recovery   | from time  | labo   | Qualify all   |
| 92 |    | lin** | changed.** | periods    | ratory | Results after |
| 92 |    |       |            | not        | blank  | July 31, 2002 |
| ** |    |       | **81       | sta        | c      | with an "E"   |
|    |    |       | [+]{.      | tistically | ontrib | code due to   |
|    |    |       | underline} | d          | utions | reduction in  |
|    |    |       | 15.5 to    | ifferent** | obse   | median set    |
|    |    |       | 58.4       |            | rved** | spike         |
|    |    |       | [+]{.      | **84.2     |        | recovery (\<  |
|    |    |       | underline} | [+]{.      |        | 60%)**        |
|    |    |       | 16.5**     | underline} |        |               |
|    |    |       |            | 38.3 to    |        | **Remove      |
|    |    |       | **I        | 97.2       |        | routine E     |
|    |    |       | mprovement | [+]{.      |        | code from     |
|    |    |       | of Median  | underline} |        | data after    |
|    |    |       | Recovery   | 42.8**     |        | September 30, |
|    |    |       | and/or     |            |        | 2004.**       |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Oxa | **Medians  | **Data     | **No   | **Need to     |
| *3 |    | myl** | and        | from time  | labo   | Qualify all   |
| 88 |    |       | standard   | periods    | ratory | Results after |
| 66 |    |       | deviations | not        | blank  | July 31, 2002 |
| ** |    |       | changed.** | sta        | c      | with an "E"   |
|    |    |       |            | tistically | ontrib | code due to   |
|    |    |       | **74       | d          | utions | reduction in  |
|    |    |       | [+]{.      | ifferent** | obse   | median set    |
|    |    |       | underline} |            | rved** | spike         |
|    |    |       | 13.9 to    | **77.1     |        | recovery      |
|    |    |       | 49.4       | [+]{.      |        | (\<60%)**     |
|    |    |       | [+]{.      | underline} |        |               |
|    |    |       | underline} | 29 to 71.1 |        | **Remove      |
|    |    |       | 17.1**     | [+]{.      |        | routine E     |
|    |    |       |            | underline} |        | code from     |
|    |    |       | **I        | 36.8**     |        | data after    |
|    |    |       | mprovement |            |        | September 30, |
|    |    |       | of Median  |            |        | 2004.**       |
|    |    |       | Recovery   |            |        |               |
|    |    |       | and/or     |            |        |               |
|    |    |       | Standard   |            |        |               |
|    |    |       | Deviation  |            |        |               |
|    |    |       | after      |            |        |               |
|    |    |       | September  |            |        |               |
|    |    |       | 30,        |            |        |               |
|    |    |       | 2004.**    |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *4 |    | *Prop | Median     | from time  | labo   | received.**   |
| 92 |    | ham** | Recovery   | periods    | ratory |               |
| 36 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **87.6     |            | rved** |               |
|    |    |       | [+]{.      | **94.9     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 12.7 to    | underline} |        |               |
|    |    |       | 84.7       | 24.4 to    |        |               |
|    |    |       | [+]{.      | 107        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.5**     | underline} |        |               |
|    |    |       |            | 29.5**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | Propi | Median     | from time  | labo   | received.**   |
| 04 |    | conaz | Recovery   | periods    | ratory |               |
| 71 |    | ole** | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **93.5     |            | rved** |               |
|    |    |       | [+]{.      | **100      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.9 to    | underline} |        |               |
|    |    |       | 86.6       | 45.3 to    |        |               |
|    |    |       | [+]{.      | 112        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15**       | underline} |        |               |
|    |    |       |            | 40.2**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **    | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | Propo | Median     | from time  | labo   | received.**   |
| 85 |    | xur** | Recovery   | periods    | ratory |               |
| 38 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **84.6     |            | rved** |               |
|    |    |       | [+]{.      | **90.1     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 10.1 to    | underline} |        |               |
|    |    |       | 78.7       | 15 to 94   |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 12.7**     | 27.5**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | *     | **Meets    | **Data     | **No   | **Use data as |
| *3 |    | *Sidu | Median     | from time  | labo   | received.**   |
| 85 |    | ron** | Recovery   | periods    | ratory |               |
| 48 |    |       | and        | not        | blank  |               |
| ** |    |       | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **95.2     |            | rved** |               |
|    |    |       | [+]{.      | **109      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 16.2 to    | underline} |        |               |
|    |    |       | 64.4       | 38.4 to    |        |               |
|    |    |       | [+]{.      | 120        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 21.3**     | underline} |        |               |
|    |    |       |            | 38.6**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Sul | **Meets    | **Data     | **No   | **Use data as |
| *5 |    | fomet | Median     | from time  | labo   | received.**   |
| 03 |    | uron, | Recovery   | periods    | ratory |               |
| 37 |    | met   | and        | not        | blank  |               |
| ** |    | hyl** | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **129      |            | rved** |               |
|    |    |       | [+]{.      | **151      |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 26.9 to    | underline} |        |               |
|    |    |       | 122        | 52.2 to    |        |               |
|    |    |       | [+]{.      | 151        |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 24.2**     | underline} |        |               |
|    |    |       |            | 67.1**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Teb | **Meets    | **Data     | **Det  | **Reporting   |
| *8 |    | uthiu | Median     | from time  | ection | level should  |
| 26 |    | ron** | Recovery   | periods    | in set | be raised to  |
| 70 |    |       | and        | not        | blanks | 0.032 ug/l    |
| ** |    |       | Standard   | sta        | at or  | based on ten  |
|    |    |       | Deviation  | tistically | g      | times set     |
|    |    |       | Criteria** | d          | reater | blank 95^th^  |
|    |    |       |            | ifferent** | than** | percentile    |
|    |    |       | **100      |            |        | confidence    |
|    |    |       | [+]{.      | **107      | **10 % | level         |
|    |    |       | underline} | [+]{.      | (17.2  | ca            |
|    |    |       | 12 to 92   | underline} | %)**   | lculations.** |
|    |    |       | [+]{.      | 15.2 to    |        |               |
|    |    |       | underline} | 100        |        |               |
|    |    |       | 14.2**     | [+]{.      |        |               |
|    |    |       |            | underline} |        |               |
|    |    |       |            | 28**       |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **    | **Median   | **Data     | **No   | **All data    |
| *0 | *E | Terba | recovery   | from time  | labo   | should        |
| 40 | ** | cil** | changed**  | periods    | ratory | continue to   |
| 32 |    |       |            | not        | blank  | be E coded.   |
| ** |    |       | **94.4     | sta        | c      | Laboratory    |
|    |    |       | [+]{.      | tistically | ontrib | set spike     |
|    |    |       | underline} | d          | utions | median        |
|    |    |       | 27.9 to    | ifferent** | obse   | recoveries    |
|    |    |       | 18.6       |            | rved** | may not       |
|    |    |       | [+]{.      | **78.4     |        | reflect       |
|    |    |       | underline} | [+]{.      |        | recoveries in |
|    |    |       | 32.5**     | underline} |        | matrices.**   |
|    |    |       |            | 25.1 to    |        |               |
|    |    |       | **I        | 65.5       |        | **Remove      |
|    |    |       | mprovement | [+]{.      |        | routine E     |
|    |    |       | of Median  | underline} |        | code from     |
|    |    |       | Recovery   | 30.6**     |        | data after    |
|    |    |       | and/or     |            |        | September 30, |
|    |    |       | Standard   | **Sample   |        | 2004.**       |
|    |    |       | Deviation  | matrices   |        |               |
|    |    |       | after      | show some  |        |               |
|    |    |       | September  | pr         |        |               |
|    |    |       | 30,        | eservation |        |               |
|    |    |       | 2004.**    | effect.**  |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  | *  | **T   | **Removed  |            |        |               |
| *6 | *E | riben | from       |            |        |               |
| 11 | ** | uron, | method**   |            |        |               |
| 59 |    | met   |            |            |        |               |
| ** |    | hyl** |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
|    |    |       |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **B   | **Meets    | **Data     | **No   | **Use data as |
| *9 |    | arban | Median     | from time  | labo   | received.**   |
| 06 |    | (su   | Recovery   | periods    | ratory |               |
| 40 |    | rroga | and        | not        | blank  |               |
| ** |    | te)** | Standard   | sta        | c      |               |
|    |    |       | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **97.4     |            | rved** |               |
|    |    |       | [+]{.      | **93.8     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 14.8 to    | underline} |        |               |
|    |    |       | 84.2       | 35.9 to    |        |               |
|    |    |       | [+]{.      | 88.7       |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 15.8**     | underline} |        |               |
|    |    |       |            | 25.8**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
| *  |    | **Caf | **Meets    | **Data     | **No   | **Use data as |
| *9 |    | feine | Median     | from time  | labo   | received.**   |
| 99 |    | C13   | Recovery   | periods    | ratory |               |
| 59 |    | (su   | and        | not        | blank  |               |
| ** |    | rroga | Standard   | sta        | c      |               |
|    |    | te)** | Deviation  | tistically | ontrib |               |
|    |    |       | Criteria** | d          | utions |               |
|    |    |       |            | ifferent** | obse   |               |
|    |    |       | **102      |            | rved** |               |
|    |    |       | [+]{.      | **76.4     |        |               |
|    |    |       | underline} | [+]{.      |        |               |
|    |    |       | 17.2 to    | underline} |        |               |
|    |    |       | 89.5       | 24 to 79.4 |        |               |
|    |    |       | [+]{.      | [+]{.      |        |               |
|    |    |       | underline} | underline} |        |               |
|    |    |       | 17.1**     | 15.1**     |        |               |
+----+----+-------+------------+------------+--------+---------------+
|    |    |       |            |            |        |               |
+----+----+-------+------------+------------+--------+---------------+

**Black -- Compound results are acceptable over time period studied. Met
\> 60 % recovery and \< 25% standard deviation acceptance criteria.**

**Blue -- Compound results are E qualified over time period studied. No
change in reporting convention.**

**Pink -- Compound results are E qualified over initial time period
studied. Routine E qualifier may be removed from data for results
reported after July 31, 2002 and or September 30, 2004.**

**Red -- Compound results that need to be E qualified after July 31,
2002 and were not qualified before, and/or reporting limits need to be
changed based on multiplying the 95 % confidence interval of the blank
contamination results by ten.**