HELIOTECH

ADMINISTRATIVE ACTION. DEOBLIGATE REMAINING $0.20

DEOBLIGATE EXCESS FUNDS IN THE BASE PERIOD. 0003AA REMEDY OPTIMIZATION $561.00 0005AB VAPOR INTRUSION COMPLIANCE $63,349.26 0005AC SOIL GAS ASSESSMENT $1,164.90 0005AD GROUND SAMPLING VALIDATION $7,855.00 0005AE VI COMPLIANCE/SOIL GAS

FUNDING IN THE AMOUNT OF $681.00 IS HEREBY OBLIGATED TO 1001AD MONTHLY PROGRESS REPORTS TO FULLY FUND OPTION PERIOD YEAR 2 FOR THE PERIOD FROM 08/01/2024 THROUGH 07/31/2025.

DEOBLIGATE EXCESS FUNDS IN THE BASE PERIOD. 0001AE O&M PLAN -- SOW REFERENCE: 1.0 NOT REQUIRED $1,146.00 0001AG TASK ORDER CLOSEOUT NOT REQUIRED $401.00 0002AB NOTIFICATIONS YEAR 3 NOT REQUIRED $5,9

CANCEL 0001E CLOSE OUT BASE 1001BA QAPP UPDATED OPTION YEAR 1

INCREMENTAL SPECIAL ACCOUNT FUNDING FOR ESO COMMUNITY INVOLVEMENT TASK ORDER (68HE0523F0082). FUNDING IS FOR MARINETTE MGP SITE.

ADDITIONAL INCREMENTAL FUNDING FOR THREE SITES. TITTABAWASSEE RIVER SITE :$5,000.00 REILLY TAR INDIANAPOLIS PLANT : $15,000.00 TOWN OF PINES : $3,000.00 ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.

R7 PARKVIEW WELLS TECHNICAL SUPPORT SERVICES MOD P00009: CHANGE INJECTION TREATMENT AND METHODS FOR GROUNDWATER INJECTIONS.

THIS TASK ORDER IS FOR THE ROTO-FINISH ESO SITE

APPOINT NEW TASK ORDER CONTRACTING OFFICER REPRESENTATIVE. INCORPORATE REVISION 2 OF THE STATEMENT OF WORK. DEOBLIGATE THE FOLLOWING: 0002 FIELD WORK $2,591.53 0004A SUPPLEMENT RI WP $69.00 0005C MEETING SUPPORT $1,775.00 EXTEND THE

TASK ORDER AWARD FOR CAM-OR

DEOBLIGATE THE EXCESS FUNDING FROM THE FOLLOWING BASE PERIOD ITEM: 0001AE CLOSE OUT $340.00 THE CLOSE OUT COSTS ARE FUNDED IN 1001E.

DEOBLIGATE EXCESS FUNDS FROM THE BASE YEAR AS FOLLOWS: 0001E CLOSE OUT $219.00

TASK ORDER AWARD

INCORPORATE STATEMENT OF WORK REVISION 2 DATED 11/6/2023 INTO SUBJECT TASK ORDER. CANCEL THE FOLLOWING ITEMS THAT ARE NO LONGER REQUIRED: 1001AE CI 1002AF RA SAMPLING/OVERSIGHT 1002AG RA OVERSIGHT/COMP REV 1003AF RA OVERSIGHT SAMPLING 100

DEOBLIGATE THE EXCESS FUNDING FROM THE FOLLOWING BASE PERIOD ITEM: 0001BA QAPP REV YR 2 $872.00 0001BB QAPP REV YR 3 $892.00 0002BB GROUNDWATER YR2 $105.27 0002BC GROUNDWATER YR 3 $992.26 0002C OPTIONAL ENG REVIEW $3,772.00 0003B OPTI

DEOBLIGATE EXCESS FUNDS FROM THE BASE YEAR AS FOLLOWS: 0001BA QAPP UPDATE $655.00 0002AC FIELD AUDITS YR 3 $22,791.87 0003 REMOVAL SUPPORT $6,222.00 0004AC REMEDIAL ACTION YR 3 $20,250.00 0005AA FIVE YEAR REV INSPECT $5,641.18 0005AB FIVE Y

INCREMENTAL FUNDING: PIPELINE $200,000 ELM STREET $17,000.00 ST REGIS $30,000.00 USS LEAD $20,000.00

DEOBLIGATE EXCESS FUNDING IN THE AMOUNT OF $160,125.08 CLOSE TASK ORDER

DEOBLIGATE EXCESS FUNDS FROM BASE YEAR IN THE AMOUNT OF $10,936.36

R7 ESO ELLISVILLE SUPERFUND SITE TECHNICAL ASSISTANCE SAMPLING AND SUPPORT TASK ORDER TO PROVIDE TECHNICAL ASSISTANCE (TA), SAMPLING AND ANALYTICAL SUPPORT MOD P00004: EXERCISE OF OPTION PERIOD 1

CLOSE OUT. DEOBLIGATE REMAINING FUNDS IN THE AMOUNT OF $298,735.78

EXTEND THE PERIOD OF PERFORMANCE TO 07/31/2024. OBLIGATION FUNDING IN THE AMOUNT OF $272,503.00 APPOINT THE INVOICE APPROVER. APPOINT THE ALTERNATE INVOICE APPROVER. ADD NET30 TO THE PAYMENT TERMS.

EXTEND THE PERIOD OF PERFORMANCE TO 07/31/2028 OBLIGATE FUNDING IN THE AMOUNT OF $96,435.95 APPOINT THE INVOICE APPROVER APPOINT THE ALTERNATE INVOICE APPROVER ADD NET30 TO THE PAYMENT TERMS.

TASK ORDER

MOD P00007: EXERCISE OPTION PERIOD 1 - PARKVIEW WELLS TECHNICAL SUPPORT SERVICES.

PERIOD OF PERFORMANCE IS EXTENDED TO 07/31/2027 FUNDS IN THE AMOUNT OF $95,805.76 ARE OBLIGATED. STEPHANIE LINEBAUGH IS APPOINTED THE INVOICE APPROVER. DANIEL OLSSON IS APPOINTED THE INVOICE APPROVER. NET30 IS ADDED TO THE PAYMENT TERMS.

EXTEND THE PERIOD OF PERFORMANCE TO 07/31/2028 APPOINT INVOICE APPROVER APPOINT ALTERNATE INVOICE APPROVER ADD NET30 APPOINT THE TASK ORDER CONTRACTING OFFICER REPRESENTATIVE OBLIGATE FUNDING FOR THE PERIOD 08/01/2023 TO 07/31/2028

COPLEY SQUARE PLAZA SITE TASK ORDER

R10 ESO: WHITE KING LUCKY LASS SITE TO PROVIDE MAINTENANCE, INSPECTION, MONITORING, OPTIONAL NON-TIME CRITICAL REMOVAL ACTION (NTCRA), REMEDY REPAIR SERVICES AT A REMEDIATED FORMER URANIUM MINE.

EXTEND PERIOD OF PERFORMANCE TO 07/31/2024 OBLIGATE FUNDING IN THE AMOUNT OF $6,902.00 APPOINT THE INVOICE APPROVER APPOINT THE ALTERNATE INVOICE APPROVER ADD NET30 TO THE PAYMENT TERMS.

EXTEND THE PERIOD OF PERFORMANCE TO 07/31/2026 APPOINT INVOICE APPROVER APPOINT ALTERNATE INVOICE APPROVER ADD NET30 TO PAYMENT TERMS. OBLIGATE FUNDS FOR PERIOD 08/01/2023 TO 07/31/2026

EXTEND THE PERIOD OF PERFORMANCE TO 07/31/2028 APPOINT THE INVOICE APPROVER APPOINT THE ALTERNATE INVOICE APPROVER. ADD NET30 TO THE PAYMENT TERMS OBLIGATE FUNDING FOR THE PERIOD FROM 08/01/2023 TO 07/31/2028

APPOINT THE NEW TASK ORDER CONTRACTING OFFICER REPRESENTATIVE. APPOINT THE INVOICE APPROVER AND ALTERNATE INVOICE APPROVER. ADD NET30 TO THE PAYMENT TERMS. FULLY FUND THE CONTRACT OPTION PERIOD LINE ITEMS.

U.S. EPA REGION 7 FEDERAL FACILITIES NPL TECHNICAL SUPPORT MOD P00007: ADD INCREMENTAL FUNDING TO FULLY FUND YEAR 5 AND CHANGE TASK ORDER CONTRACTING OFFICER REPRESENTATIVES

OBLIGATE INCREMENTAL PIPELINE FUNDING IN THE AMOUNT OF $50,000.00

INCREMENTAL PIPELINE FUNDS IN THE AMOUNT OF $10,000.00 FOR COMMUNITY INVOLVEMENT REQUIREMENTS.

INCREMENTAL PIPELINE FUNDS IN THE AMOUNT OF $30,000.00 FOR COMMUNITY INVOLVEMENT REQUIREMENTS.

DEOBLIGATION OF SITE SPECIFIC FUNDING.

RAF ESO TASK ORDER FOR: ACM SMELTER & REFINERY, OVERSIGHT FOR OU1 AND OU2. SSID:0819.

ENVIRONMENTAL SERVICES AND OPERATIONS (ESO)- LTRA AT SANFORD DRY CLEANERS. MODIFICATION 8 TO EXERCISE OPTION PERIOD I.

TITTABAWASSEE RIVER SPECIAL ACCOUNT FUNDING

SANFORD DRY CLEANERS SITE LOCATED IN SEMINOLE COUNTY, FL. LONG-TERM REMEDIAL ACTION (LTRA) ACTIVITIES.

MOD P00006: CHANGE ORDER TO INCORPORATE MODIFIED ISCO REMEDIAL DESIGN WORK PLAN FOR R7 ESO - PARKVIEW WELLS TECHNICAL SUPPORT SERVICES.

CLOSE YEAR 2

CLOSE YEAR 2. DEOBLIGATE EXCESS FUNDS FROM 0005B

R7 SEMO REMEDIAL ACTION OVERSIGHT SUPPORT ENVIRONMENTAL SERVICES AND OPERATIONS (ESO) TASK ORDER - P0002 MODIFICATION TO ADD FUNDING FOR YEAR 4

CLOSE OUT YEAR 2

CLOSE 0002AB FIELD AUDITS YEAR 2 AND 0004AB REMEDIAL ACTION YEAR 2

R7 ESO ELLISVILLE SUPERFUND SITE TECHNICAL ASSISTANCE SAMPLING AND SUPPORT TASK ORDER TO PROVIDE TECHNICAL ASSISTANCE (TA), SAMPLING AND ANALYTICAL SUPPORT MOD P00001-ISSUE AND DEFINITIZE CHANGE ORDERS FOR TRANSPORT,DISPOSAL AND STORAGE.