Midwestern Engineers, Inc. Plan Preview

I I I \ I ,' I I I I II \ II II I II \j /III 1 / II �\ 1 :1 \ \ \ \ I \ \\ �\� I \ ��\/ � I I \ \\ . \ �'\ \ / \ \ 7 __/ r I \ \ \ I 5 \ � -- � --- � --- � -- I I I \ \ \ \ \ � -­ � -- \ I I ---- / RAS/WAS PUMP STATION \4 Gfi-✓:� 1 \��������--� ----- NEW & EXISTING CLARIFIERS FLOW SPLITTER BOX --- � -- � -- � --- � -- � -- � --- --- NEW MH102 I I --- ---- N II CONTRA 1¼" METER HEMICAL FEE 12" S l\f\\-130�B IJIJ,b.iE.R o\\J jNEW OXIDATION DITCH! � --- � -- � -- � --­ � -- � --- � -- / FLOODWAY BOUNDARY ----- \ I I I \ .. � -- � -- --- I I I . ,, ,, I I /',,., '\ / I n���- c r fl"/\ 21 / I ' TRANS. BY DIV. EX. 0 1 \1 11 19 MH302 '- \ � --­ � --- ) )\�;::� .. 1 1 1 1 1 ·µ....----,� I \\ I 11 I SCALE: 1" = 20' I � ------- ', --- d INSTALL NEW CATCH BASIN AND 12" DRAIN LINE INSTALL NEW 10" PLUG VALVE IN NEW R.A.S. / W.A.S. GRAVITY LINE CONNECT NEW MANHOLE No. 300A TO WATER TREATMENT PLANT EXISTING 12" CAPPED SANITARY SEWER MAIN. ,o \ � WATER TREATMENT PLANT EXISTING 12" SANITARY SEWER LINE AND BACKWASH HOLDING TANK RETURN LINE. � WATER TREATMENT PLANT EXISTING 6" BACKWASH HOLDING TANK WASTE LINE TO EXISTING WET WELL � EXISTING PRIVATE GAS SERVICE TO BE ABANDONED IN PLACE � PROPOSED GAS MAIN BY CENTERPOINT ENERGY (I@ PROPOSED GAS LATERAL BY CENTERPOINT ENERGY GENERAL NOTES: FOR ADDITIONAL PIPING DETAILS, SEE SHEETS: M2.11 M3.02 4.03 5.03 M6.02 7.04 / 7.05 8.02 NEW OXIDATION DITCH NEW FINAL CLARIFIERS EX. TRANSFER PUMP STATION EX. FINAL CLARIFIERS NEW U.V. DISINFECTION / STEP AERATION TANK EX. ANAEROBIC DIGESTER / EX. CONTROL BUILDING EX. SLUDGE DRYING BEDS / NEW CONTAINER BAG SLUDGE DEWATERING SYSTEM PIPING PLAN NOTES: MINIMUM SLOPES FORGRAVITY LINES SHALL BE AS FOLLOWS: {NOMINAL SEWER SIZE I MINIMUM SLOPE IN FEET PER 100') 4" = 1.33' 10" = 0.28' 16" = 0.14' PIPING LEGEND NEW MAINS (DIV I., WfP PROJECT) NEW MAINS (THIS PROJECT) -------- NEW MAINS (DIV. I, THIS PROJECT) EXISTING MAINS TO REMAIN IN SERVICE EXISTING MAINS TO BE ABANDONED (TBA) EXISTING MAINS PREVIOUSLY ABANDONED - -G.s- - GAS MAIN -o/E--ose- UNDERGROUND / OVERHEAD ELECTRIC ___,___ TELEPHONE 2" w POTABLE WATER MAIN AND SIZE 4" NPW NON-POTABLE WATER MAIN AND SIZE 12" DRN DRAINAGE LINES AND SIZE 12· GRV GRAVITY SEWER MAIN AND SIZE 24" SAN SANITARY SEWER MAIN AND SIZE �TM STORM SEWER AND SIZE 12- F SANITARY FORCE MAIN AND SIZE 12�}0 EFFLUENT OUTFALL MAIN AND SIZE s· SEP SEPTAGE RECEIVING LINE AND SIZE CHEM FEED CHEMICAL FEED LINE i?t VALVE FIRE HYDRANT / YARD HYDRANT PLAN KEYNOTE LEGEND: [iJ [I] INSTALL TEMPORARY BY-PASS LINE TO EXISTING U.V. STRUCTURE PRIOR TO DEMOLISHING EXISTING CHLORINE CONTACT TANK. RELOCATE EXISTING EFFLUENT FLOWMETER ON CHLORINE CONTACT TANK TO EXISTING U.V. STRUCTURE PRIOR TO DEMOLISHING EXISTING CHLORINE CONTACT TANK. CONNECT NEW PLANT 12'" FORCE MAIN FROM PLANT/EQ PUMP STATION (DIV. I) TO NEW OXIDATION DITCH. INSTALL NEW 24" GRAVITY LINE FROM NEW OXIDATION DITCH TO NEW CLARIFIERS FLOW SPLITTER BOX. m INSTALL NEW 14" GRAVITY LINE FROM NEW CLARIFIERS FLOW SPUTTER BOX [9J [Io] TO EXISTING TRANSFER PUMP STATION. INSTALL NEW CHEMICAL FEED MANHOLE. FEED LINE & CONDUIT FROM NEW LAB / CHEMICAL FEED BUILDING TO OXIDATION DITCH EFFLUENT PIPE. RELOCATE EXISTING CLARIFIER SLUDGE DRAW-OFF PIT R.A.S AND W.A.S. GRAVITY SLUDGE LINES TO NEW CLARIFIER R.A.S./ W.A.S. PUMP STATION WET WELL. INSTALL NEW EFFLUENT GRAVITY LINE FROM NEW CLARIFIERS TO NEW U.V. DISINFECTION / STEP AERATION TANK. INSTALL NEW FORCE MAIN FROM NEW CLARIFIER RAS/WAS PUMP STATION TO NEW OXIDATION DITCH. INSTALL NEW FORCE MAIN FROM NEW CLARIFIER RAS/WAS PUMP STATION TO EXISTING ANAEROBIC DIGESTER. INSTALL NEW GRAVITY SCUM LINE FROM NEW CLARIFIERS TO EXISTING MH3 (COLLECTION MANHOLE). @J INSTALL NEW GRAVITY LINE FROM EXISTING CLARIFIERS {OR EXISTING MH2 BY-PASS) TO NEW UV/STEP AERATION TANK. B:Ij WHEN NEW PLANT IS READY TO GO ONLINE, SWITCH OVER TEMPORARY BY-PASS LINE FROM EXISTING U.V. TO NEW UV. [Bj INSTALL NEW GRAVITY PLANT EFFLUENT FROM NEW U.V. / STEP AERATION TANK AND CONNECT TO EXISTING 24" PLANT EFFLUENT LINE. � NEW MANHOLES AND GRAVITY SEWER LINE, NOT IN THIS CONTRACT. � INSTALL NEW FORCE MAIN FROM EXISTING CONTROL BUILDING RAW WATER PUMPS TO NEW MH300A. � INSTALL NEW GRAVITY SEWER AND DRAIN LINES FROM NEW LAB / CHEMICAL [i:sJ FEED BUILDING TO NEW MH302B. INSTALL NEW MANHOLE AND GRAVITY LINE FOR NEW OXIDATION TANK DRAINS AND FLOOR DRAINS. CONNECT NEW GRAVITY LINE TO DIV. 1 CAPPED LINE TO NEW PLANT/EQ PUMP STATION WET WELL (DIV. I) DEMOLISH EXISTING MANHOLES. ABANDON IN PLACE OR REMOVE EXISTING SANITARY SEWER, GRAVITY LINES, FORCE MAIN. DRAIN LINES AND/OR NON-POTABLE WATER LINES. SEAL ABANDONED LINES AT STRUCTURE WALL OR CUT, CAP AND BLOCK ON BOTH LINES AND ABANDONED ENDS. CONNECT NEW FORCE MAIN TO EXISTING FORCE MAIN. INSTALL NEW FORCE MAIN TO NEW CONTAINER BAG SLUDGE DEWATERING SYSTEM. IE] REPLACE EXISTING PLUG VALVES WITH NEW PLUG VALVES. SIZE PER LINE. � PRESSURE FLUSH EXISTING DRYING BED DRAIN LINES. INSTALL NEW WASTE GAS BURNER. REMOVE EXISTING EFFLUENT OVERFLOW FLOW METER PRIOR TO DEMOLISHING MANHOLE. RETURN FLOW METER TO CITY OF PETERSBURG. FUTURE WATER TREATMENT PLANT CONNECTION. INSTALL NEW 1 1/2" FREEZELESS YARD HYDRANT EQUAL TO WOODFORD U150W. INSTALL NEW 3/4" FREEZELESS YARD HYDRANT EQUAL TO WOODFORD Y34. CONNECT NEW 2" WATER SUPPLY LINE TO CONTROL BUILDING EXISTING DOMESTIC WATER SERVICE LINE. DEMOLISH EXISTING SERVICE LINE UPSTREAM OF THIS LOCATION 6" = 0.61' 12" = 0.22' 18" = 0.12' 8" = 0.40' 14" = 0.17' 24" = 0.08' MINIMUM PIPE DEPTHS SHALL BE 42" BELOW FINISHED GRADE. WASTEWATER TREATMENT PLANT SITE PIPING & UTILITIES PLAN (EAST HALF) REVISIONS 08-27-21,06-21-23, 09-20-23 © 2021 Mi(lwe:st,·rn Engineers. Inc. 80] We�l Broadwa; Sirecr P.O. Box 29.5 Ll><l 1w olcc. lndia11� 475;\) DATE FEB. 2021 DESIGN C.W.R. DRAWN O.C. CHECK R.D.W. PROJECT NUMBER 2015078-01 C1 07 16 OF 114 FILE NUMBER 42056 Do Not Use Plan Previews for Take Off