Date

Gross

Alpha

pc/l

Gross

Beta

pc/l

Radium

226

pc/l

Radium

228

pc/l

Radon*

222

pc/l

Uranium

234

pc/l

Uranium

235

pc/l

Uranium

238

pc/l

Total

Uranium

mg/l

6/27/97

557 � 64

334 � 44

7.3 � 0.9

9.1 � 1.5

1.1

8/19/97

406 � 54

�299 � 40

15 � 2

6.2 � 1.5

0.73

3/17/98

1,000 � 30

375 � 40

13 � 2

8.3 � 1.5

156 � 5.13

20.0 � 1.88

202 � 5.85

0.56

6/17/98

1,190 � 20

264 � 40

1.6

9/23/98

955 � 29

272 � 39

10 � 0.798

7.3 � 7.3

1.5

12/02/98

662 � 31

312 � 38

1

3/08/98

654 � 63

207 � 21

9/30/99

1,000 � 99

150 � 20

1.27

1/06/00

880 � 84

400 � 33

1.51

4/5/00

690 � 74

210 � 27

1.34

10/30/00

750 � 13

240 � 19

1.19

1/10/01

1,000 � 92

360 � 30

1.44

4/05/01

760 � 76

280 � 29

340 � 16

12

350 � 17

1.31

7/16/01

1090 � 94

386 � 34

1.48

10/18/01

895 � 74

345 � 26

1.32

2/15/02

853 � 75

221 � 22

345 � 11

13.2 � 3.9

374 � 12

1.15

4/11/02

665 � 68

325 � 27

14.1 � 0.8

6.86 � 1.0

362 � 12

12 � 2.4

367 � 13

1.08

9/11/02

503

288

286

11.2 � 2.4

312

.901

11/13/02

447

399

376

11.8

387

1.1

1/23/03

504

367

357

14.3

387

1.37

4/17/03

562

330

358

17.2

386

1.14

8/12/03

716 �9.2

382 � 11.8

306 � 8.4

7.6 � 1.3

336 � 8.8

1.26

11/19/03

701 � 8.8

270 � 12.2

304 � 7.3

12.0 � 1.4

320 � 7.5

1.24

3/09/04

709 � 29

214 � 11.4

364 � 8.8

14.7 � 1.8

385 � 9.0

1.19

MCLG**

0

0

���� Ra-226+ 228 = 0

None

None

None

�None

0

MCL***

15 pCi/l

4 mrem/yr

Ra-226+ -228 = 5

None

None

None

None

0.03 mg/l