Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

 2,865 2,223 2,810 1,866 2,819 1,823 2,938 2,001 2,977 

Date Time Millitm Marker

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

01/24/12 06:56:41 312 S 0.2 1.2 2468.0 2464.6 2468.0 2468.2 2439.1 2431.3 2705.2 01/24/12 07:11:36 331 S 1.8 1.2 2386.2 2460.8 2415.1 2469.8 2391.1 2431.9 2628.2 01/24/12 07:26:36 742 S 0.2 1.0 2402.3 2453.0 2394.3 2461.0 2373.4 2418.5 2625.1 01/24/12 07:41:36 480 S 0.2 1.0 2490.5 2455.4 2488.9 2463.4 2468.0 2424.7 2730.9 01/24/12 07:56:36 687 S 0.2 0.8 2496.8 2460.4 2468.0 2462.6 2488.9 2428.9 2746.9 01/24/12 08:11:35 863 S 1.8 0.8 2471.2 2459.4 2461.6 2458.2 2466.3 2428.1 2726.0 01/24/12 08:26:36 118 S 1.8 0.8 2471.2 2458.8 2490.5 2456.8 2484.0 2437.7 2746.9 01/24/12 08:41:36 700 S 3.4 1.2 2453.5 2455.0 2458.4 2455.6 2458.4 2446.2 2726.0 01/24/12 08:56:36 48 S 0.2 1.2 2440.7 2451.6 2469.6 2455.8 2455.2 2448.2 2709.9 01/24/12 09:11:39 739 S 1.8 1.2 2451.9 2459.8 2455.2 2460.8 2440.7 2454.4 2681.1 01/24/12 09:26:39 865 S 0.2 1.2 2444.0 2465.0 2474.5 2470.8 2440.7 2462.8 2719.7 01/24/12 09:41:36 661 S 0.2 1.2 2415.1 2455.6 2451.9 2466.2 2360.6 2449.4 2671.5 01/24/12 09:56:36 245 S 1.8 1.4 2437.5 2448.1 2448.8 2463.8 2432.8 2442.3 2666.8 01/24/12 10:11:36 702 S 1.8 1.4 2376.7 2436.3 2342.9 2449.0 2336.6 2426.1 2650.7 01/24/12 10:26:36 784 S 0.2 1.2 2450.5 2433.7 2495.2 2449.6 2402.3 2415.9 2697.1 01/24/12 10:41:37 85 S 3.4 1.2 2447.2 2432.9 2456.8 2449.4 2436.0 2413.1 2684.3 01/24/12 10:56:37 277 S 1.8 1.4 2411.9 2429.3 2426.3 2443.9 2444.0 2411.7 2676.4 01/24/12 11:11:36 343 S 1.8 1.4 2363.9 2418.3 2391.1 2435.9 2344.6 2399.7 2647.5 01/24/12 11:26:36 426 S 1.8 1.6 2379.9 2410.3 2387.9 2425.1 2363.9 2390.1 2625.1 01/24/12 11:41:36 742 S 1.8 1.8 2407.2 2409.3 2399.0 2418.5 2399.0 2394.9 2665.2 01/24/12 11:56:36 762 S 0.2 1.6 2445.6 2410.3 2451.9 2418.9 2429.5 2394.5 2708.3 01/24/12 12:11:37 16 S 1.8 1.6 2440.7 2418.3 2445.6 2431.7 2416.7 2404.5 2722.7 01/24/12 12:26:36 817 S 3.4 2.0 2384.6 2410.1 2370.2 2416.1 2341.5 2396.9 2641.0 01/24/12 12:41:36 946 S 3.4 2.0 2437.5 2408.9 2477.7 2418.7 2410.2 2393.7 2706.9 01/24/12 12:56:36 528 S 0.2 1.8 2434.4 2411.7 2477.7 2425.1 2448.8 2394.3 2702.0 01/24/12 13:11:37 204 S 1.8 1.8 2391.1 2415.1 2420.0 2428.7 2383.2 2399.1 2678.0 01/24/12 13:26:37 505 S 0.2 1.6 2370.2 2413.9 2420.0 2432.8 2368.7 2399.7 2657.1 01/24/12 13:41:37 306 S 1.8 1.6 2424.7 2416.1 2447.2 2438.8 2379.9 2397.3 2682.7 01/24/12 13:56:37 60 S 1.8 1.8 2351.0 2404.3 2411.9 2433.8 2362.2 2388.9 2621.9 01/24/12 14:11:36 799 S 1.8 1.8 2397.4 2398.9 2411.9 2429.6 2391.1 2385.7 2658.7 

Scrubber # 1 

GPM 

Scrubber # 2 

GPM 

Scrubber # 3 

GPM 

Scrubber # 4 

GPM 

Scrubb

GP

1 of 6
Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

 2,865 2,223 2,810 1,866 2,819 1,823 2,938 2,001 2,977 

Date Time Millitm Marker

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

Scrubber # 1 

GPM 

Scrubber # 2 

GPM 

Scrubber # 3 

GPM 

Scrubber # 4 

GPM 

Scrubb

GP

01/24/12 14:26:37 647 S 0.2 1.4 2423.2 2403.7 2440.7 2438.4 2384.6 2391.1 2695.5 01/24/12 14:41:37 120 S 3.4 1.4 2413.5 2400.7 2458.4 2436.0 2384.6 2387.9 2682.7 01/24/12 14:56:37 702 S 0.0 1.4 2399.0 2396.3 2413.5 2427.9 2363.9 2377.3 2641.0 01/24/12 15:11:36 987 S 1.8 1.4 2396.0 2396.9 2421.6 2428.1 2375.0 2376.3 2657.1 01/24/12 15:26:37 351 S 1.8 1.6 2391.1 2399.5 2426.3 2428.9 2400.7 2380.3 2687.6 01/24/12 15:41:37 699 S 1.8 1.6 2323.8 2386.9 2359.0 2417.9 2309.4 2371.4 2591.4 01/24/12 15:56:37 390 S 1.8 1.6 2418.3 2395.3 2421.6 2419.1 2427.9 2379.6 2665.2 01/24/12 16:11:36 910 S 0.2 1.4 2381.5 2393.3 2436.0 2422.1 2415.1 2382.6 2663.6 01/24/12 16:26:37 664 S 1.8 1.6 2416.7 2392.5 2442.3 2422.3 2392.7 2383.7 2682.7 01/24/12 16:41:37 28 S 1.8 1.4 2325.4 2381.5 2344.6 2408.1 2318.9 2375.4 2562.5 01/24/12 16:56:37 766 S 1.8 1.6 2335.0 2373.5 2335.0 2398.3 2301.4 2367.6 2586.5 01/24/12 17:11:37 286 S 3.4 1.8 2344.6 2367.1 2357.4 2390.3 2304.5 2358.8 2588.1 01/24/12 17:26:37 696 S 3.4 2.0 2394.3 2367.5 2416.7 2389.1 2421.6 2361.4 2661.9 01/24/12 17:41:37 388 S 3.4 2.2 2402.3 2377.3 2402.3 2394.5 2389.5 2371.5 2649.1 01/24/12 17:56:37 470 S 3.4 2.4 2368.7 2371.1 2400.7 2391.9 2341.5 2360.7 2628.2 01/24/12 18:11:37 818 S 0.2 2.4 2408.8 2374.5 2429.5 2391.1 2379.9 2356.3 2647.5 01/24/12 18:26:37 619 S 1.8 2.4 2342.9 2365.3 2336.6 2377.8 2333.4 2348.8 2596.3 01/24/12 18:41:37 310 S 0.2 2.2 2354.3 2368.9 2418.3 2387.1 2336.6 2351.0 2594.6 01/24/12 18:56:37 512 S 1.8 2.2 2427.9 2380.5 2436.0 2399.7 2451.9 2369.9 2693.9 01/24/12 19:11:37 751 S 3.4 2.2 2376.7 2384.5 2397.4 2404.7 2411.9 2383.3 2597.9 01/24/12 19:26:38 333 S 1.8 2.0 2365.5 2380.9 2389.5 2401.3 2391.1 2379.5 2621.9 01/24/12 19:41:33 72 S 1.8 1.8 2418.3 2382.9 2460.0 2408.5 2431.2 2384.7 2695.5 01/24/12 19:56:32 810 S 3.4 1.8 2368.7 2382.9 2367.1 2404.3 2354.3 2386.3 2637.9 01/24/12 20:11:32 549 S 3.4 2.2 2447.2 2387.7 2464.7 2408.7 2448.8 2394.9 2689.2 01/24/12 20:26:37 803 S 1.8 2.2 2451.9 2401.3 2476.1 2426.1 2415.1 2405.1 2700.4 01/24/12 20:41:32 948 S 1.8 2.4 2432.8 2411.1 2496.8 2436.0 2490.5 2424.3 2708.3 01/24/12 20:56:33 342 S 0.2 2.2 2444.0 2413.1 2482.4 2441.8 2432.8 2422.0 2698.7 01/24/12 21:11:33 362 S 1.8 2.0 2445.6 2421.8 2453.5 2448.8 2453.5 2427.2 2711.6 01/24/12 21:26:33 100 S 0.2 1.8 2440.7 2431.2 2458.4 2457.4 2426.3 2431.6 2692.4 01/24/12 21:41:38 542 S 1.8 1.8 2375.0 2425.7 2434.4 2454.2 2418.3 2430.0 2645.9 

2 of 6
Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

 2,865 2,223 2,810 1,866 2,819 1,823 2,938 2,001 2,977 

Date Time Millitm Marker

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

Scrubber # 1 

GPM 

Scrubber # 2 

GPM 

Scrubber # 3 

GPM 

Scrubber # 4 

GPM 

Scrubb

GP

01/25/12 06:56:39 236 S 0.2 0.8 2445.6 2426.9 2498.5 2463.0 2418.3 2408.9 2706.9 01/25/12 07:11:33 865 S 0.2 0.8 2429.5 2426.7 2432.8 2459.6 2363.9 2404.7 2674.7 01/25/12 07:26:39 291 S 1.8 1.0 2386.2 2424.9 2413.5 2455.6 2346.2 2399.7 2634.7 01/25/12 07:41:38 811 S 1.8 1.2 2450.5 2427.9 2455.2 2457.2 2453.5 2400.9 2695.5 01/25/12 07:56:38 830 S 0.2 1.0 2456.8 2431.1 2488.9 2461.4 2450.5 2407.7 2681.1 01/25/12 08:11:39 69 S 1.8 1.0 2456.8 2441.4 2511.3 2473.2 2431.2 2415.9 2705.2 01/25/12 08:26:38 932 S 3.4 1.2 2442.3 2438.2 2468.0 2469.0 2469.6 2419.1 2748.4 01/25/12 08:41:39 671 S 1.8 1.4 2469.6 2442.2 2480.8 2468.6 2442.3 2421.9 2737.2 01/25/12 08:56:39 316 S 0.2 1.4 2386.2 2434.7 2402.3 2456.6 2391.1 2418.5 2681.1 01/25/12 09:11:34 710 S 0.2 1.4 2447.2 2437.0 2477.7 2462.2 2442.3 2428.3 2750.0 01/25/12 09:26:34 636 S 3.4 1.6 2391.1 2437.6 2373.4 2457.2 2386.2 2433.3 2655.4 01/25/12 09:41:35 0 S 1.8 1.6 2463.3 2439.2 2458.4 2457.6 2431.2 2430.5 2721.1 01/25/12 09:56:34 738 S 3.4 2.0 2396.0 2431.6 2423.2 2449.4 2370.2 2420.5 2652.4 01/25/12 10:11:34 430 S 0.2 1.8 2445.6 2430.2 2479.2 2445.4 2439.1 2421.5 2745.3 01/25/12 10:26:39 793 S 1.8 1.6 2439.1 2429.8 2476.1 2446.4 2432.8 2416.9 2732.5 01/25/12 10:41:39 985 S 1.8 1.6 2436.0 2425.6 2456.8 2443.4 2399.0 2411.5 2745.3 01/25/12 10:56:39 833 S 1.8 1.8 2376.7 2424.4 2429.5 2446.8 2352.7 2406.7 2652.4 01/25/12 11:11:39 353 S 0.2 1.8 2442.3 2423.8 2461.6 2444.8 2434.4 2405.7 2714.8 01/25/12 11:26:39 825 S 1.8 1.6 2451.9 2431.4 2469.6 2456.8 2487.3 2418.3 2718.0 01/25/12 11:41:39 314 S 0.2 1.4 2442.3 2428.7 2437.5 2454.2 2427.9 2417.9 2724.4 01/25/12 11:56:39 490 S 0.2 1.0 2420.0 2431.7 2426.3 2454.6 2463.3 2429.6 2751.6 01/25/12 12:11:39 400 S 3.4 1.4 2379.9 2423.5 2421.6 2447.4 2399.0 2424.5 2649.1 01/25/12 12:26:40 92 S 1.8 1.4 2421.6 2421.3 2493.6 2449.6 2420.0 2422.9 2730.9 01/25/12 12:41:39 870 S 1.8 1.4 2456.8 2423.9 2471.2 2451.4 2434.4 2427.4 2743.7 01/25/12 12:56:40 314 S 3.4 1.6 2423.2 2429.8 2453.5 2454.4 2448.8 2439.4 2727.6 01/25/12 13:11:40 122 S 3.4 2.0 2460.0 2432.0 2476.1 2456.2 2476.1 2444.6 2742.0 

3 of 6
Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

Date Time

01/24/12 06:56:4101/24/12 07:11:3601/24/12 07:26:3601/24/12 07:41:3601/24/12 07:56:3601/24/12 08:11:3501/24/12 08:26:3601/24/12 08:41:3601/24/12 08:56:3601/24/12 09:11:3901/24/12 09:26:3901/24/12 09:41:3601/24/12 09:56:3601/24/12 10:11:3601/24/12 10:26:3601/24/12 10:41:3701/24/12 10:56:3701/24/12 11:11:3601/24/12 11:26:3601/24/12 11:41:3601/24/12 11:56:3601/24/12 12:11:3701/24/12 12:26:3601/24/12 12:41:3601/24/12 12:56:3601/24/12 13:11:3701/24/12 13:26:3701/24/12 13:41:3701/24/12 13:56:3701/24/12 14:11:36

 3,377 2,238 3,014 2,396 3,026 2,009 2,739 1,712 2,691 1,528 2,648 

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min

2732.5 2752.9 3243.7 3231.8 2314.2 2317.0 2536.9 2553.1 2413.5 2385.5 2668.3 2673.1 2751.0 3176.3 3235.6 2275.6 2318.0 2500.1 2554.7 2320.6 2386.9 2564.1 2658.7 2738.4 3136.3 3225.0 2259.7 2310.4 2498.5 2544.9 2312.6 2375.1 2570.6 2788.4 2737.6 3296.5 3229.0 2371.8 2314.4 2591.4 2546.7 2360.6 2370.8 2718.0 2783.7 2737.8 3259.7 3230.2 2349.4 2319.2 2570.6 2546.7 2400.7 2372.0 2653.8 2762.8 2739.4 3261.2 3232.8 2349.4 2322.2 2589.8 2551.5 2392.7 2370.0 2668.3 2769.3 2739.8 3250.0 3233.2 2346.2 2324.4 2556.2 2550.5 2426.3 2375.0 2666.8 2759.7 2741.0 3262.8 3235.8 2339.9 2325.8 2546.5 2548.7 2411.9 2379.8 2657.1 2766.0 2745.2 3222.7 3233.2 2338.2 2328.8 2549.7 2550.3 2378.3 2375.5 2650.7 2702.0 2748.8 3237.2 3240.8 2311.0 2333.2 2517.8 2552.5 2370.2 2381.7 2633.1 2734.1 2758.3 3238.8 3253.6 2315.7 2340.2 2572.2 2561.8 2386.2 2390.9 2631.4 2673.1 2743.8 3168.2 3237.6 2288.6 2329.8 2479.2 2547.7 2335.0 2387.7 2565.8 2709.9 2734.6 3195.5 3229.5 2322.2 2326.4 2528.9 2542.5 2400.7 2387.7 2601.0 2668.3 2722.8 3137.9 3214.1 2237.2 2312.4 2444.0 2524.3 2322.2 2378.8 2562.5 2716.4 2716.2 3208.3 3208.9 2309.4 2307.8 2512.9 2518.9 2349.4 2369.2 2594.6 2724.4 2711.8 3209.9 3202.3 2301.4 2303.0 2522.5 2515.9 2381.5 2365.4 2633.1 2681.1 2701.2 3160.3 3194.5 2299.8 2298.2 2498.5 2509.5 2360.6 2363.2 2543.4 2660.3 2695.9 3115.4 3179.3 2245.3 2289.9 2445.6 2500.5 2328.7 2358.0 2545.0 2650.7 2685.5 3121.9 3164.7 2251.6 2281.9 2453.5 2485.6 2307.7 2348.2 2535.3 2695.5 2688.3 3197.1 3168.3 2298.2 2283.1 2504.8 2488.8 2328.7 2347.4 2569.0 2735.6 2691.5 3211.5 3170.3 2320.6 2282.9 2551.3 2491.6 2403.9 2347.8 2623.5 2732.5 2699.6 3213.2 3179.7 2325.4 2294.0 2549.7 2504.8 2384.6 2355.6 2647.5 2671.5 2693.9 3141.0 3171.3 2250.0 2286.5 2471.2 2499.6 2301.4 2349.6 2588.1 2721.1 2693.5 3195.5 3169.5 2322.2 2289.1 2517.8 2499.0 2405.5 2352.6 2610.7 2746.9 2701.8 3243.7 3179.9 2314.2 2290.9 2525.7 2502.5 2387.9 2356.1 2639.6 2676.4 2703.8 3150.7 3184.3 2277.3 2294.9 2498.5 2509.1 2335.0 2356.8 2559.3 2631.4 2701.4 3120.2 3184.1 2246.9 2294.3 2427.9 2505.9 2318.9 2358.2 2559.3 2700.4 2702.0 3206.8 3185.3 2282.1 2292.3 2490.5 2504.1 2384.6 2365.2 2609.1 2641.0 2690.1 3113.7 3173.1 2240.4 2282.3 2450.5 2491.5 2327.0 2355.6 2543.4 2687.6 2684.5 3185.9 3169.7 2283.7 2277.1 2474.5 2482.1 2359.0 2352.4 2605.8 

Scrubber # 7 

GPM 

Scrubber # 8 

GPM 

Scrubber # 9 

GPM 

Scrubber # 10 

GPM 

Scrubber # 11 

GPM 

Scrub

G

4 of 6
Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

Date Time

01/24/12 14:26:3701/24/12 14:41:3701/24/12 14:56:3701/24/12 15:11:3601/24/12 15:26:3701/24/12 15:41:3701/24/12 15:56:3701/24/12 16:11:3601/24/12 16:26:3701/24/12 16:41:3701/24/12 16:56:3701/24/12 17:11:3701/24/12 17:26:3701/24/12 17:41:3701/24/12 17:56:3701/24/12 18:11:3701/24/12 18:26:3701/24/12 18:41:3701/24/12 18:56:3701/24/12 19:11:3701/24/12 19:26:3801/24/12 19:41:3301/24/12 19:56:3201/24/12 20:11:3201/24/12 20:26:3701/24/12 20:41:3201/24/12 20:56:3301/24/12 21:11:3301/24/12 21:26:3301/24/12 21:41:38

 3,377 2,238 3,014 2,396 3,026 2,009 2,739 1,712 2,691 1,528 2,648 

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min

Scrubber # 7 

GPM 

Scrubber # 8 

GPM 

Scrubber # 9 

GPM 

Scrubber # 10 

GPM 

Scrubber # 11 

GPM 

Scrub

G

2674.7 2684.9 3166.6 3172.9 2296.6 2282.9 2519.2 2488.1 2367.1 2360.6 2569.0 2711.6 2683.7 3213.2 3175.1 2301.4 2280.3 2508.0 2486.8 2373.4 2356.6 2586.5 2666.8 2673.7 3141.0 3162.3 2274.2 2275.3 2480.8 2481.2 2359.0 2353.0 2570.6 2700.4 2676.7 3179.6 3165.9 2288.6 2276.7 2474.5 2478.2 2363.9 2356.6 2623.5 2689.2 2683.9 3150.7 3169.7 2283.7 2281.3 2519.2 2489.6 2389.5 2365.4 2589.8 2596.3 2670.9 3059.3 3151.3 2210.0 2272.3 2407.2 2479.2 2311.0 2356.2 2503.3 2692.4 2677.4 3166.6 3157.9 2264.4 2275.3 2500.1 2485.4 2363.9 2360.8 2591.4 2700.4 2679.0 3174.7 3156.5 2285.4 2275.5 2501.7 2488.8 2368.7 2362.1 2569.0 2702.0 2682.4 3179.6 3158.1 2282.1 2273.7 2492.0 2485.4 2362.2 2361.4 2567.4 2617.0 2670.5 3089.7 3142.7 2210.0 2262.3 2424.7 2475.0 2264.4 2347.8 2484.0 2605.8 2662.9 3065.7 3133.3 2210.0 2254.3 2456.8 2472.0 2317.3 2342.6 2485.6 2633.1 2654.5 3086.5 3121.6 2216.4 2245.2 2387.9 2461.2 2280.5 2332.2 2495.2 2669.9 2652.1 3166.6 3123.6 2278.9 2244.6 2512.9 2460.4 2341.5 2326.2 2546.5 2682.7 2662.9 3179.6 3138.6 2267.7 2251.9 2487.3 2470.4 2299.8 2324.8 2599.3 2647.5 2657.3 3123.5 3133.3 2269.3 2252.5 2455.2 2464.8 2322.2 2319.6 2512.9 2706.9 2658.1 3195.5 3135.8 2294.9 2253.7 2498.5 2464.4 2383.2 2321.4 2569.0 2650.7 2651.7 3078.6 3123.2 2234.1 2247.7 2455.2 2459.8 2309.4 2314.8 2533.7 2625.1 2652.7 3129.8 3128.2 2237.2 2251.1 2447.2 2462.6 2294.9 2318.6 2525.7 2722.7 2667.3 3238.8 3149.9 2304.5 2262.9 2536.9 2472.6 2376.7 2326.0 2618.6 2673.1 2672.3 3178.0 3161.3 2270.9 2269.7 2479.2 2484.0 2347.8 2334.4 2536.9 2652.4 2670.1 3149.1 3159.1 2267.7 2268.3 2461.6 2477.6 2311.0 2330.6 2536.9 2743.7 2677.8 3209.9 3162.9 2314.2 2274.1 2538.5 2484.0 2359.0 2338.0 2594.6 2679.6 2681.8 3120.2 3162.5 2235.6 2269.9 2471.2 2486.0 2330.1 2339.0 2554.6 2737.2 2685.6 3243.7 3168.5 2311.0 2271.9 2506.4 2487.0 2386.2 2339.4 2636.3 2722.7 2694.6 3235.5 3188.1 2327.0 2283.5 2543.4 2498.1 2389.5 2349.4 2629.8 2756.5 2711.0 3208.3 3197.9 2330.1 2295.1 2540.1 2509.7 2418.3 2364.8 2645.9 2743.7 2713.6 3254.8 3199.9 2327.0 2298.0 2535.3 2509.5 2365.5 2363.4 2620.3 2764.4 2725.0 3195.5 3202.1 2320.6 2304.2 2551.3 2518.5 2371.8 2366.4 2641.0 2726.0 2734.2 3226.0 3211.7 2309.4 2309.4 2520.8 2525.9 2391.1 2376.4 2585.1 2692.4 2727.8 3171.5 3206.9 2270.9 2304.0 2511.3 2522.5 2335.0 2373.4 2545.0 

5 of 6
Century Aluminum

AC Stack Scrubber Water Flows

Compliance Test Jan. 24 - 25, 2012

Date Time

01/25/12 06:56:3901/25/12 07:11:3301/25/12 07:26:3901/25/12 07:41:3801/25/12 07:56:3801/25/12 08:11:3901/25/12 08:26:3801/25/12 08:41:3901/25/12 08:56:3901/25/12 09:11:3401/25/12 09:26:3401/25/12 09:41:3501/25/12 09:56:3401/25/12 10:11:3401/25/12 10:26:3901/25/12 10:41:3901/25/12 10:56:3901/25/12 11:11:3901/25/12 11:26:3901/25/12 11:41:3901/25/12 11:56:3901/25/12 12:11:3901/25/12 12:26:4001/25/12 12:41:3901/25/12 12:56:4001/25/12 13:11:40

 3,377 2,238 3,014 2,396 3,026 2,009 2,739 1,712 2,691 1,528 2,648 

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min.

2 hr 

rolling 

avg

15 Min

Scrubber # 7 

GPM 

Scrubber # 8 

GPM 

Scrubber # 9 

GPM 

Scrubber # 10 

GPM 

Scrubber # 11 

GPM 

Scrub

G

2740.4 2708.4 3256.5 3217.8 2322.2 2298.3 2522.5 2517.1 2384.6 2365.0 2647.5 2726.0 2710.6 3176.3 3215.0 2287.0 2297.9 2541.8 2518.5 2365.5 2365.6 2589.8 2637.9 2706.2 3128.2 3203.6 2261.4 2296.3 2472.8 2516.9 2339.9 2364.0 2556.2 2737.2 2710.6 3256.5 3206.0 2335.0 2301.7 2522.5 2514.3 2379.9 2365.8 2647.5 2775.6 2717.0 3224.4 3205.6 2338.2 2304.2 2565.8 2518.5 2384.6 2365.2 2673.1 2751.6 2728.6 3294.9 3223.8 2331.7 2311.2 2538.5 2528.1 2383.2 2374.7 2610.7 2770.9 2733.4 3254.8 3228.8 2331.7 2313.2 2589.8 2534.9 2392.7 2375.7 2634.7 2730.9 2733.8 3237.2 3228.6 2318.9 2315.8 2562.5 2539.5 2376.7 2375.9 2593.0 2690.8 2727.6 3168.2 3217.6 2269.3 2309.2 2490.5 2535.5 2315.7 2367.3 2525.7 2727.6 2727.8 3238.8 3225.4 2312.6 2312.4 2549.7 2536.5 2378.3 2368.9 2636.3 2655.4 2730.0 3150.7 3228.2 2264.4 2312.7 2496.8 2539.5 2320.6 2366.4 2516.1 2754.9 2732.2 3224.4 3224.2 2317.3 2310.5 2540.1 2541.7 2357.4 2363.6 2637.9 2711.6 2724.2 3176.3 3218.2 2280.5 2303.3 2468.0 2529.5 2306.1 2353.8 2541.8 2721.1 2720.4 3229.2 3210.0 2335.0 2303.7 2543.4 2530.1 2328.7 2347.0 2604.2 2762.8 2719.4 3211.5 3204.5 2306.1 2300.5 2538.5 2523.7 2381.5 2345.6 2610.7 2708.3 2716.6 3234.1 3204.2 2314.2 2299.9 2522.5 2518.7 2365.5 2344.2 2641.0 2647.5 2711.2 3126.6 3199.0 2238.8 2296.1 2468.0 2515.9 2323.8 2345.2 2487.3 2761.3 2715.4 3218.0 3196.4 2315.7 2296.5 2541.8 2514.9 2381.5 2345.6 2607.4 2722.7 2723.8 3209.9 3203.8 2314.2 2302.7 2530.6 2519.1 2375.0 2352.4 2626.6 2735.6 2721.4 3227.6 3204.2 2318.9 2302.9 2530.6 2517.9 2363.9 2353.3 2655.4 2719.7 2722.4 3232.5 3211.2 2317.3 2307.5 2551.3 2528.3 2375.0 2361.9 2577.0 2657.1 2714.4 3134.7 3199.4 2270.9 2299.5 2471.2 2519.3 2339.9 2363.3 2528.9 2756.5 2713.6 3227.6 3201.4 2298.2 2298.5 2549.7 2520.7 2368.7 2361.7 2575.3 2753.2 2719.2 3240.4 3202.2 2309.4 2297.9 2564.1 2525.9 2410.2 2367.3 2644.3 2729.2 2729.4 3205.2 3212.0 2312.6 2307.2 2533.7 2534.1 2360.6 2371.9 2567.4 2735.6 2726.2 3238.8 3214.6 2296.6 2304.8 2562.5 2536.7 2394.3 2373.5 2655.4 

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