Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/02 19:00 0 531 71.9 7.38 419

4/02 18:45 0 7722 70.9 7.38 6323

4/02 18:30 0 7681 68.0 7.38 6311

4/02 18:15 0 7668 65.3 7.37 6328

4/02 18:00 0 7619 65.5 7.37 6337

4/02 17:45 0 7311 73.7 7.36 6079

4/02 17:30 0 6870 72.6 7.40 5520

4/02 17:15 0 6712 70.6 7.40 5558

4/02 17:00 0 6851 68.6 7.40 5520

4/02 16:45 0 6715 69.3 7.41 5584

4/02 16:30 0 6780 69.6 7.42 5581

4/02 16:15 0 6814 68.9 7.42 5608

4/02 16:00 0 6679 67.7 7.42 5606

4/02 15:45 0 6946 65.5 7.41 5542

4/02 15:30 0 6867 62.6 7.43 5616

4/02 15:15 0 7660 61.9 7.42 6252

4/02 15:00 0 8521 61.7 7.41 7244

4/02 14:45 0 8594 62.4 7.42 7238

4/02 14:30 0 8548 61.7 7.43 7218

4/02 14:15 0 8477 60.8 7.44 7219

4/02 14:00 0 8401 59.4 7.43 7252

4/02 13:45 0 8516 58.5 7.43 7240

4/02 13:30 0 8481 57.2 7.43 7233

4/02 13:15 0 8492 54.7 7.42 7280

4/02 13:00 0 8568 51.7 7.40 7240

4/02 12:45 0 8150 45.7 7.22 7390

4/02 12:30 0 7051 52.5 6.77 6423

count 27 6.75 hrs

DAILY SUMMARY: Gallons discharged 167,161

167,558

Flow weighted average turbidity

Sea-Tac Airport 3rd Runway - Pond C

System 1 PLC Data - April 2007

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

419 5.0 7.57

421 5.1 7.57

421 5.0 7.57

420 5.0 7.57

424 5.0 7.58

407 5.0 7.58

367 5.0 7.58

371 5.0 7.58

368 5.2 7.58

373 5.2 7.58

373 5.2 7.57

373 5.3 7.57

375 5.4 7.55

370 5.4 7.54

373 5.4 7.53

418 5.4 7.53

482 5.5 7.51

484 5.6 7.50

481 6.8 7.49

481 6.8 7.48

484 6.8 7.46

482 6.9 7.45

482 6.9 7.43

485 7.2 7.41

483 7.4 7.38

492 7.3 7.32

514 7.8 7.20

NTU min 5.0

NTU max 7.8

hted average turbidity 5.9

pH min 7.20
pH max 7.58
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/02 19:00 0 341 40.4 6.79 224

4/02 18:45 0 10056 40.4 6.79 6864

4/02 18:30 0 10052 39.3 6.79 6836

4/02 18:15 0 10147 38.5 6.79 6852

4/02 18:00 0 10100 37.6 6.79 6881

4/02 17:45 0 10060 36.2 6.78 6886

4/02 17:30 0 10087 35.0 6.75 6884

4/02 17:15 0 10127 34.3 6.73 6871

4/02 17:00 0 10106 34.0 6.74 6915

4/02 16:45 0 10063 35.0 6.72 6883

4/02 16:30 0 10054 36.0 6.68 6878

4/02 16:15 0 10185 36.5 6.64 6885

4/02 16:00 0 10096 36.3 6.60 6841

4/02 15:45 0 10060 35.3 6.59 6901

4/02 15:30 0 10071 34.7 6.54 6869

4/02 15:15 0 10073 35.8 6.43 6899

4/02 15:00 0 10040 38.3 6.34 6900

4/02 14:45 0 10064 39.6 6.19 6925

4/02 14:30 0 10121 40.4 5.91 6890

4/02 14:15 0 9980 41.4 5.68 6917

4/02 14:00 0 9974 42.4 5.24 6898

4/02 13:45 0 9971 43.0 4.83 6889

4/02 13:30 0 9248 27.6 5.09 7163

4/02 13:15 0 9107 3.0 5.53 7072

4/02 13:00 0 9975 3.1 5.49 6902

4/02 12:45 0 9040 3.0 4.99 7256

4/02 12:30 0 6967 2.9 0.86 6661

count 27 6.75 hrs

DAILY SUMMARY: Gallons discharged 179,842

180,197

Sea-Tac Airport 3rd Runway - Pond C

System 2 PLC Data - April 2007
Flow weighted average turbidity
Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

446 0.7 7.74

457 0.7 7.75

456 0.7 7.75

456 0.7 7.74

458 0.7 7.75

459 0.7 7.76

458 0.7 7.74

457 0.7 7.73

461 0.7 7.73

460 0.6 7.73

459 0.7 7.71

457 0.6 7.69

458 0.6 7.68

458 0.6 7.64

456 0.6 7.62

459 0.6 7.60

460 0.6 7.54

461 0.7 7.53

459 0.7 7.44

460 0.7 7.35

460 0.7 7.18

459 0.7 7.16

478 0.6 7.14

481 0.7 7.12

460 0.8 7.08

484 0.8 7.40

521 0.7 7.57

NTU min 0.6
NTU max 0.8

hted average turbidity 0.7

pH min 7.08

pH max 7.76
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

4/02 23:45 0 8827 39.4 7.40 7211 480 0.4 7.39

4/02 23:30 0 8827 38.5 7.41 7158 477 0.4 7.39

4/02 23:15 0 8735 37.0 7.41 7092 472 0.4 7.39

4/02 23:00 0 8717 35.4 7.42 7026 468 0.4 7.39

4/02 22:45 0 8454 34.2 7.43 6767 450 0.4 7.38

4/02 22:30 0 8296 32.4 7.42 6469 432 0.4 7.37

4/02 22:15 0 6163 42.4 7.46 4596 438 0.4 7.33

4/02 19:00 0 303 59.7 7.45 217 431 0.4 7.41

4/02 18:45 0 8228 47.8 7.44 6485 432 0.5 7.40

4/02 18:30 0 8253 47.1 7.45 6449 430 0.5 7.40

4/02 18:15 0 8287 46.1 7.45 6466 430 0.5 7.40

4/02 18:00 0 8243 44.9 7.46 6470 432 0.4 7.40

4/02 17:45 0 8334 44.1 7.46 6499 432 0.4 7.39

4/02 17:30 0 8317 42.8 7.46 6472 432 0.5 7.38

4/02 17:15 0 8271 41.6 7.46 6504 432 0.5 7.36

4/02 17:00 0 8286 41.2 7.44 6494 434 0.4 7.31

4/02 16:45 0 3652 51.6 7.41 2505 437 0.4 7.25

4/02 14:30 0 3952 52.3 7.38 3027 433 0.4 7.32

4/02 14:15 0 8224 51.0 7.38 6472 432 0.4 7.31

4/02 14:00 0 8231 51.6 7.36 6500 433 0.4 7.30

4/02 13:45 0 8312 52.2 7.33 6458 431 0.4 7.29

4/02 13:30 0 8194 52.5 7.32 6503 433 0.4 7.29

4/02 13:15 0 8228 51.6 7.30 6499 433 0.4 7.28

4/02 13:00 0 8247 48.6 7.30 6515 434 0.4 7.29

4/02 12:45 0 8286 41.1 7.30 6500 434 0.5 7.29

4/02 12:30 0 8225 32.9 7.31 6471 431 0.5 7.29

4/02 12:15 0 8208 28.8 7.31 6416 428 0.5 7.29

4/02 12:00 0 8253 25.6 7.31 6422 427 0.5 7.30

4/02 11:45 0 8233 22.6 7.31 6385 425 0.5 7.31

4/02 11:30 0 8225 20.7 7.30 6422 427 0.5 7.30

4/02 11:15 0 8254 20.1 7.29 6386 426 0.5 7.29

4/02 11:00 0 8277 18.9 7.27 6383 425 0.5 7.25

4/02 10:45 0 8233 15.4 7.20 6421 428 0.5 7.18

4/02 10:30 0 4343 26.3 6.95 3263 452 0.7 7.07

count 20 5 hrs

DAILY SUMMARY: Gallons discharged 118,546

119,869 NTU min 0.4

NTU max 0.7

Flow weighted average turbidity 0.8

pH min 7.07

pH max 7.38

Sea-Tac Airport 3rd Runway - Pond G

System 1 PLC Data - April 2007
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

4/03 4:15 0 8798 41.5 7.13 7109 475 0.4 7.34

4/03 4:00 0 8810 41.5 7.13 7080 472 0.4 7.34

4/03 3:45 0 8773 41.3 7.13 7106 474 0.4 7.33

4/03 3:30 0 8818 41.0 7.13 7133 475 0.4 7.33

4/03 3:15 0 8817 39.8 7.12 7137 475 0.5 7.33

4/03 3:00 0 8873 40.5 7.11 7144 476 0.4 7.32

4/03 2:45 0 8818 40.3 7.11 7161 477 0.4 7.31

4/03 2:30 0 8838 39.8 7.11 7172 479 0.4 7.30

4/03 2:15 0 8859 39.3 7.10 7184 478 0.4 7.29

4/03 2:00 0 8851 38.6 7.07 7169 479 0.4 7.27

4/03 1:45 0 8812 37.9 7.00 7195 479 0.4 7.24

4/03 1:30 0 8780 47.9 6.89 6942 479 0.6 7.26

4/03 1:15 0 8852 60.6 6.97 7120 475 0.7 7.25

4/03 1:00 0 808 99.0 6.94 231 458 0.7 7.24

4/03 : 0 8707 40.8 7.40 7009 477 0.4 7.39

count 15 3.75 hrs

DAILY SUMMARY: Gallons discharged 99,892

100,611 NTU min 0.4

NTU max 0.7

Flow weighted average turbidity 0.4

pH min 7.24

pH max 7.39

Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

4/14 2:15 0 1021 6.5 7.94 943 539 1.0 7.92

4/14 2:00 0 7800 6.5 7.92 8073 539 1.0 7.86

4/14 1:45 0 1027 6.4 7.84 535 538 1.2 7.76

4/14 1:30 0 5325 5.9 7.89 5397 540 1.0 7.90

4/14 1:15 0 8140 6.3 7.86 7852 523 1.1 7.88

4/14 1:00 0 8112 6.2 7.81 7841 524 0.9 7.86

4/14 :45 0 7251 6.5 7.43 5798 493 1.0 7.76

Sea-Tac Airport 3rd Runway - Pond G

System 1 PLC Data - April 2007

Sea-Tac Airport 3rd Runway - Pond G

System 1 PLC Data - April 2007
count 7 1.75 hrs

DAILY SUMMARY: Gallons discharged 36,439

37,724 NTU min 0.9

NTU max 1.2

Flow weighted average turbidity 1.0

pH min 7.76

pH max 7.92
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/02 23:45 0 8670 37.2 7.51 7331

4/02 23:30 0 8668 35.9 7.51 7344

4/02 23:15 0 8599 35.0 7.51 7263

4/02 23:00 0 8546 33.3 7.51 7140

4/02 22:45 0 8390 32.0 7.51 7030

4/02 22:30 0 8286 30.6 7.48 7022

4/02 22:15 0 6036 45.1 7.48 4665

4/02 16:45 0 4478 40.6 7.61 3801

4/02 16:30 0 8403 40.4 7.62 7100

4/02 16:15 0 8450 41.4 7.61 7086

4/02 16:00 0 8407 41.5 7.60 7104

4/02 15:45 0 8403 40.7 7.59 7092

4/02 15:30 0 8450 39.2 7.58 7082

4/02 15:15 0 8489 39.4 7.56 7091

4/02 15:00 0 8507 41.9 7.55 7123

4/02 14:45 0 8512 45.4 7.54 7145

4/02 14:30 0 8513 46.6 7.53 7094

4/02 14:15 0 8482 47.6 7.51 7103

4/02 14:00 0 8476 48.5 7.50 7100

4/02 13:45 0 8497 48.8 7.48 7111

4/02 13:30 0 8543 49.2 7.47 7104

4/02 13:15 0 8496 48.3 7.45 7117

4/02 13:00 0 8502 44.8 7.45 7123

4/02 12:45 0 8573 37.9 7.45 7153

4/02 12:30 0 8568 30.7 7.46 7073

4/02 12:15 0 8485 26.7 7.46 7041

4/02 12:00 0 8510 23.7 7.47 7045

4/02 11:45 0 8579 20.8 7.48 7053

4/02 11:30 0 8546 19.1 7.48 7049

4/02 11:15 0 8540 18.0 7.48 7065

4/02 11:00 0 8572 17.0 7.46 7077

4/02 10:45 0 8542 14.4 7.39 7043

4/02 10:30 0 4660 16.3 7.26 3413

count 33 4 8.25 hrs

DAILY SUMMARY: Gallons discharged 225,183

226,028

Sea-Tac Airport 3rd Runway - Pond G

System 2 PLC Data -April 2007
Flow weighted average turbidity

Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/03 9:30 0 3533 43.6 7.26 2576

4/03 4:45 0 3129 39.0 7.22 2638

4/03 4:30 0 8484 38.9 7.23 7220

4/03 4:15 0 8497 39.6 7.23 7239

4/03 4:00 0 8545 39.4 7.22 7251

4/03 3:45 0 8627 39.0 7.21 7291

4/03 3:30 0 8665 38.6 7.21 7329

4/03 3:15 0 8703 38.0 7.20 7388

4/03 3:00 0 8674 38.3 7.19 7418

4/03 2:45 0 8712 38.2 7.19 7386

4/03 2:30 0 8638 37.8 7.19 7321

4/03 2:15 0 8624 37.4 7.17 7321

4/03 2:00 0 8704 36.6 7.16 7352

4/03 1:45 0 8687 35.8 7.10 7363

4/03 1:30 0 8661 45.4 7.07 7333

4/03 1:15 0 8612 43.0 7.09 7232

4/03 1:00 0 683 45.0 7.05 113

count 17 4.25 hrs

DAILY SUMMARY: Gallons discharged 107,771

108,602

Flow weighted average turbidity

Sea-Tac Airport 3rd Runway - Pond G

System 2 PLC Data -April 2007

Sea-Tac Airport 3rd Runway - Pond G

System 2 PLC Data -April 2007
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/11 12:45 0 7928 6.4 7.72 4978

4/11 12:30 0 4187 14.8 6.70 282

count 2 0.5 hrs

DAILY SUMMARY: Gallons discharged 5,260

8,648

Flow weighted average turbidity
Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

489 0.6 7.39

488 0.5 7.38

484 0.5 7.39

476 0.5 7.40

468 0.4 7.41

467 0.5 7.45

466 0.5 7.60

474 0.5 7.42

473 0.4 7.41

473 0.4 7.40

473 0.4 7.40

473 0.4 7.39

473 0.4 7.37

473 0.4 7.36

475 0.4 7.35

476 0.4 7.34

473 0.4 7.33

473 0.4 7.33

473 0.4 7.32

474 0.4 7.32

474 0.4 7.31

475 0.4 7.31

474 0.4 7.32

476 0.4 7.33

471 0.5 7.34

469 0.5 7.35

469 0.5 7.36

470 0.5 7.37

470 0.5 7.38

471 0.5 7.38

472 0.5 7.38

470 0.5 7.42

472 0.7 7.54

NTU min 0.4

NTU max 0.7
hted average turbidity 0.5

pH min 7.31

pH max 7.60

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

469 1.6 7.18

480 1.9 7.12

482 2.3 7.12

482 2.1 7.12

483 1.4 7.12

487 1.8 7.12

489 1.5 7.13

493 1.4 7.13

493 1.1 7.13

492 1.1 7.12

488 0.8 7.13

488 0.7 7.13

490 0.9 7.13

489 0.7 7.10

489 0.7 6.87

483 0.6 6.91

464 0.6 6.93

NTU min 0.6

NTU max 2.3

hted average turbidity 1.2

pH min 6.87

pH max 7.18
Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

376 2.0 7.35

380 1.6 7.06

NTU min 1.6

NTU max 2.0

hted average turbidity 2.0

pH min 7.06

pH max 7.35
Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/02 23:45 0 7104 36.0 7.63 7182

4/02 23:30 0 7384 34.8 7.62 7287

4/02 23:15 0 7793 33.8 7.61 6794

4/02 23:00 0 7770 32.2 7.59 6745

4/02 22:45 0 6905 36.4 7.54 5595

4/02 19:00 0 238 59.0 7.68 117

4/02 18:45 0 7428 44.1 7.72 6577

4/02 18:30 0 7460 43.1 7.72 6582

4/02 18:15 0 7492 42.3 7.72 6613

4/02 18:00 0 7502 41.4 7.72 6608

4/02 17:45 0 7521 39.8 7.72 6620

4/02 17:30 0 7513 38.5 7.73 6660

4/02 17:15 0 7572 37.4 7.75 6682

4/02 17:00 0 7606 37.3 7.75 6671

4/02 16:45 0 7603 38.8 7.75 6670

4/02 16:30 0 7575 39.9 7.73 6666

4/02 16:15 0 7626 40.9 7.73 6666

4/02 16:00 0 7613 40.5 7.72 6649

4/02 15:45 0 7584 39.5 7.70 6669

4/02 15:30 0 7598 38.4 7.67 6658

4/02 15:15 0 7601 39.4 7.65 6643

4/02 15:00 0 7610 41.5 7.63 6661

4/02 14:45 0 7675 44.2 7.62 6680

4/02 14:30 0 7627 45.0 7.60 6655

4/02 14:15 0 7552 45.9 7.58 6621

4/02 14:00 0 7563 46.9 7.57 6616

4/02 13:45 0 7585 47.7 7.55 6630

4/02 13:30 0 7636 47.8 7.53 6644

4/02 13:15 0 7632 45.7 7.52 6646

4/02 13:00 0 7585 41.2 7.51 6635

4/02 12:45 0 7649 32.5 7.52 6649

4/02 12:30 0 7637 26.8 7.53 6590

4/02 12:15 0 7582 23.5 7.52 6548

4/02 12:00 0 7570 20.8 7.52 6537

4/02 11:45 0 7586 19.3 7.52 6536

4/02 11:30 0 7582 17.7 7.51 6528

4/02 11:15 0 7607 16.7 7.49 6556

4/02 11:00 0 7552 16.5 7.45 6561

4/02 10:45 0 7595 14.5 7.37 6584

4/02 10:30 0 4283 16.6 6.97 3261

count 40 10 hrs

Sea-Tac Airport 3rd Runway - Pond G

System 3 PLC Data - April 2007
DAILY SUMMARY: Gallons discharged 255,492

256,467

Flow weighted average turbidity

Date 

(mm/dd)

Time

(HH:MM)

Operator 

Code

Flow In 

(gal)

Tur In 

(NTU) pH In Flow Out (gal)

4/03 4:45 0 2527 39.3 7.63 2155

4/03 4:30 0 7539 38.6 7.64 6447

4/03 4:15 0 7552 38.6 7.64 6470

4/03 4:00 0 7558 38.3 7.64 6496

4/03 3:45 0 7562 38.2 7.64 6483

4/03 3:30 0 7545 38.2 7.64 6476

4/03 3:15 0 7442 38.3 7.63 6438

4/03 3:00 0 6759 38.5 7.62 5970

4/03 2:45 0 5846 37.3 7.61 6008

4/03 2:30 0 6030 36.7 7.59 6154

4/03 2:15 0 6161 36.1 7.57 6321

4/03 2:00 0 6325 35.8 7.54 6506

4/03 1:45 0 6570 35.3 7.47 6684

4/03 1:30 0 6778 42.2 7.16 6843

4/03 1:15 0 7022 23.9 7.06 7059

4/03 1:00 0 825 24.5 7.09 311

4/03 : 0 6712 37.4 7.64 6751

count 17 4.25 hrs

DAILY SUMMARY: Gallons discharged 99,572

100,018

Flow weighted average turbidity

Sea-Tac Airport 3rd Runway - Pond G

System 3 PLC Data - April 2007

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

479 0.2 7.43

486 0.3 7.40

454 0.5 7.36

449 0.5 7.39

448 0.5 7.48

465 0.3 7.46

438 0.4 7.46

439 0.4 7.46

441 0.4 7.46

441 0.4 7.46

442 0.4 7.47

444 0.4 7.47

445 0.4 7.46

444 0.4 7.46

445 0.4 7.45

445 0.4 7.44

445 0.4 7.43

443 0.4 7.42

444 0.4 7.40

443 0.4 7.39

444 0.4 7.37

445 0.4 7.36

445 0.4 7.35

445 0.4 7.34

441 0.4 7.33

441 0.4 7.32

442 0.4 7.31

443 0.5 7.31

442 0.5 7.31

443 0.4 7.31

443 0.5 7.32

439 0.5 7.32

436 0.5 7.32

436 0.5 7.32

436 0.5 7.31

435 0.5 7.29

437 0.5 7.27

438 0.5 7.25

438 0.5 7.22

436 0.7 7.20
NTU min 0.2

NTU max 0.7

hted average turbidity 0.4

pH min 7.20

pH max 7.48

Flow Out 

(gpm)

Tur Out 

(NTU) pH Out

432 0.6 7.45

431 0.6 7.45

431 0.6 7.46

433 0.6 7.46

432 0.6 7.47

431 0.6 7.47

429 0.6 7.47

398 1.2 7.46

400 0.3 7.46

411 0.3 7.46

421 0.3 7.46

434 0.3 7.46

445 0.3 7.43

456 0.2 7.21

470 0.2 7.18

416 0.2 7.19

465 0.2 7.44

NTU min 0.2

NTU max 1.2

hted average turbidity 0.5
pH min 7.18

pH max 7.47