Attachment 1-2027 SCAN Maintenance SOW.pdf

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

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• Contractor must coordinate a logistics meeting with SCAN staff to discuss scheduling and shipping details at least one month prior to the start of work.

• One week prior to scheduled work, contractor must reach out to SCAN staff for an updated sensor malfunction list and confirm maintenance schedule or provide updates (if any).

• Site maintenance must be completed within the maintenance windows listed on the punchlist.

o If special circumstances arise for the date of completion of any work, it must be discussed with and approved by SCAN staff.

• Random audit of work - Proof of checklist items will be required in the form of photos taken after the completion of work and emailed to

SCAN staff, when requested.

o These are separate from photos required to complete Survey123 and can include such things as proof of sensor level, sensor installation, etc.

• Take pictures of surrounding area if any debris and waste are present and upload photos to site issue section in Survey123

• Return shipping will be paid for by the contractor and must be coordinated with SCAN staff.

o All return items must be packaged with care and, where indicated, in accordance with the punchlist instructions.

o Ensure to label returned components with the site they were taken out of. Do not write on the component or box. A taped sticky note will suffice.

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

Watkinsville #1 Wedowee

NB: 4/2027

NLT: 8/2027

Lehman Levelland

Reese Center

Johnson Farm

NB: 6/2027

NLT: 10/2027

NB: 2/2027

NLT: 6/2027

NB: 3/2027

NLT: 7/2027

NB: 9/2027

NLT: 12/2027

NB: 4/2027

NLT: 8/2027

NB: 4/2027

NLT: 8/2027

NB: 8/2027

NLT: 12/2027

NB: 1/2027

NLT: 5/2027

NB: 9/2027

NLT: 12/2027

NB: 7/2027

NLT: 11/2027

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2057 – AAMU-JTG, AL RV50 Analog CR1000X (2026) Not Before Complete NLT Has new NEMA (2025) Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2078 – Bragg Farm, AL RV50 Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2113 – Cullman-NAHRC, AL RV50 Analog CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors Site visit note: use a brushcutter to clear vegetation

2055 – Hodges, AL RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2173 – Isbell Farms, AL GOES SDI-12 CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Upgrade OS on datalogger to 8.4;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new program for ST300 and send text to staff for back-end coordination (important!)

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2056 – Stanley Farm, AL RV50X Analog CR1000X (2024) Not Before Complete NLT

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors Site visit note: Vegetation management and tree removal required. The vines at this site are likely poison ivy (or poison sumac?).

These are leafless in the winter—and therefore are harder to identify—but will still cause a bad rash.

2179 – Sudduth Farms, AL RV50X SDI-12 CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

Site visit note: Vegetation management and tree removal required

2053 – Wtars, AL RV50 Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors and keep soils in current location

2083 – Uapb Campus-PB, AR RV50 Analog CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Jan 2027 May 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2091 – Uapb Dewitt, AR RV50X Analog CR1000X (2024) Not Before Complete NLT

STANDARD SITE CONFIGURATION Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2085 – Uapb-Earle, AR RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2030 – Uapb-Lonoke Farm, AR RV50X SDI-12 CR1000X (2021) Not Before Complete NLT NON-STANDARD with shelter & 20’ Rohn tower NEMA Replacement Jan 2027 May 2027

• Rebuild site to standard specs: Remove shelter building, shelter footings, and move all sensors to stable 20’ tower;

• Keep currently installed solar panel (2025);

• Install new NEMA. Move existing RV50X transmitter, Genasun SR, battery (2023 C&D), and enclosure RH sensor (2025) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for cr1000Xe and send text to staff for back-end coordination (important!)

• Install two full 10’ cross arms for WS/SR and TB/Temp RH. Install 5’ cross-arm on tower at 7’ (AGL) for ST300;

• Move anemometer, pyranometer, ST300 and tipping bucket to new tower locations;

• Install new HMP155 head, new shield, and cable (if needed) to new tower location. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

• Remove any other USDA, NRCS unused structures and recycle accordingly

2084 – Uapb-Marianna, AR RV50X Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2090 – Uapb Point Remove, AR RV50X Analog CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2079 – Mammoth Cave, KY RV50X Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2005 – Princeton #1, KY RV50X Analog CR1000X (2023) Not Before Complete NLT

Has new NEMA (2023) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2032 – Beasley Lake, MS RV50X Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2024 – Goodwin Ck Pasture, MS RV50X Analog CR1000X (2025) Not Before Complete NLT Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors;

• Replace rusted soils NEMA, if inventory permits

2025 – Goodwin CK Timber, MS RV50X Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors Site visit note: Use a brushcutter to clear vegetation.

2110 – Mayday, MS RV50X Analog CR1000X (2021) Not Before Complete NLT

NEMA REPLACEMENT Jan 2027 May 2027

• Install new solar panel, dispose of old panel(s) appropriately;

• Replace NEMA with new NEMA. Move existing RV50X transmitter, battery (2021 C&D), and enclosure RH sensor (2024) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for CR1000Xe and send text to staff for back-end coordination (important!)

• Bring above ground sensor cross-arms down to standard heights from their current 15’ location;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all other analog soil sensors and replace any nonfunctioning sensors

2087 – North Issaquena, MS RV50X SDI-12 CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2033 – Onward, MS RV50X Analog CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2046 – Perthshire, MS RV50X SDI-12 CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2109 – Sandy Ridge, MS RV50X Analog CR1000X (2024) Not Before Complete NLT STANDARD SITE CONFIGURATION Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

2070 – Scott, MS RV50X SDI-12 CR1000X (2024) Not Before Complete NLT

NEMA REPLACEMENT Jan 2027 May 2027

• Perform any additional tower maintenance as appropriate;

• Install new solar panel, dispose of old panel(s) appropriately;

• Replace NEMA with new NEMA. Move existing RV50X transmitter, Genasun SR, battery (2021 C&D), and enclosure RH sensor (2025) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for CR1000Xe and send text to staff for back-end coordination (important!)

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors Site visit note: use a brushcutter to clear vegetation, if needed.

2086 – Silver City, MS RV50X Analog CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2034 – Tunica, MS RV50X SDI-12 CR1000X (2025) Not Before Complete NLT Has new NEMA (2025) Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2035 – Vance, MS RV50X Analog CR1000X (2024) Not Before Complete NLT

STANDARD SITE CONFIGURATION Jan 2027 May 2027

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

2076 – Allen Farms, TN RV50 Analog CR1000X (2024) Not Before Complete NLT

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

Site visit note: Use brushcutter to clear vegetation from station enclosure and apply pesticide. Excessive ants and hornets. Enclosure area 20ft by 20ft

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2077 – Eastview Farm, TN RV50 Analog CR1000X (2024) Not Before Complete NLT

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors Site visit note: woody vine growing in site area. Will take considerable time to continue to clear this out.

2075 – McAllister Farm, TN RV50 Analog CR1000X (2021) Not Before Complete NLT

NEMA REPLACEMENT Jan 2027 May 2027

• Install new solar panel, dispose of old panel(s) appropriately;

• Replace NEMA with new NEMA. Replace RV50 transmitter with RV50X. Move battery (2024 C&D) and enclosure RH sensor (2024) to new NEMA.

o Return old transmitter and logger in protective packaging.

• Install new program for CR1000Xe and send text to staff for back-end coordination (important!)

• Install new HMP155 head, new shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2004 – Mason #1, IL RV50X SDI-12 CR1000X (2020) Not Before Complete NLT

NONSTANDARD w/shelter NEMA REPLACEMENT Feb 2027 Jun 2027

• Rebuild site to standard specs: Remove shelter building, shelter footings, and move all sensors to stable 20’ tower;

• Keep currently installed solar panel (2024);

• Replace NEMA with new NEMA. Move existing RV50X transmitter, Genasun SR, battery (2022 C&D), and enclosure RH sensor (2023) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for CR1000Xe and send text to staff for back-end coordination (important!)

• Install two full 10’ cross arms for WS/SR and TB/Temp RH on 20’ tower. Install 5’ cross-arm on tower at 7’ (AGL) for ST300;

• Move anemometer, ST300, tipping bucket, and pyranometer to new tower locations;

• Install new HMP155 head, shield, and cable (if needed) at new tower location. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

• Remove any other USDA, NRCS unused structures and recycle accordingly

2224 – Busby Farm, MO RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all other SDI-12 soil sensors and replace any nonfunctioning sensors

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2223 – Carver Farm, MO RV50 SDI-12 CR1000X (2024) Not Before Complete NLT NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2195 – CMRB LTAR, MO RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

STANDARD SITE CONFIGURATION Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2048 – Dexter, MO RV50 Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2220 – Elsberry PMC, MO RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

NEMA REPLACEMENT Feb 2027 Jun 2027

• Rebuild site to standard specs;

• Install tower with concrete;

• Install new solar panel, dispose of old panel(s) appropriately;

• Install new NEMA. Replace RV50 transmitter with RV50X. Move battery (2026 C&D), Genasun SR, and enclosure RH (2025) to new NEMA.

o return internal components, including transmitter, to SCAN staff;

• Install new program for cr1000Xe and ST300 and send text to staff for back-end coordination (important!)

• Install two full 10’ cross arms for WS/SR and TB/Temp RH. Install 5’ cross-arm on tower at 7’ (AGL) for ST300;

• Move anemometer and tipping bucket to new tower locations;

• Install new HMP155 head, cable, and shield to new tower location. Return old sensor in protective packaging for calibration;

• Install new Pyranometer (2025) to new tower location. Return old sensor for calibration;

• Install ST300 temperature sensor inside RAD06 shield on new arm;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2194 – Journagan Ranch, MO RV50 SDI-12 CR1000X (2021) Not Before Complete NLT STANDARD SITE CONFIGURATION Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2230 – LTSP, MO GOES SDI-12 CR1000X (2021) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Purchase fencing and expand the fence around the site;

• Replace current GOES radio with Sutron setup. Return old components;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and ST300 and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2225 – Mark Twain, MO RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2060 – Mt Vernon, MO RV50X Analog (4) CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Feb 2027 Jun 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2061 – Powell Gardens, MO RV50 Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2193 – Schell-Osage, MO RV50 SDI-12 CR1000X (2021) Not Before Complete NLT STANDARD SITE CONFIGURATION Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2227 – Shaw Nature, MO RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all other SDI-12 soil sensors and replace any nonfunctioning sensors

2231 – Sinkin Forest, MO GOES SDI-12 CR1000X (2021) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new program for cr1000Xe and ST300 and send text to staff for back-end coordination (important!)

• Rewire sensors according to wiring diagram;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2047 – Spickard, MO RV50 Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2226 – Twin Pines Conservation Area, MO RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

NONSTANDARD W/short tower and no shelter Feb 2027 Jun 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2177 – Broad Acres, AL RV50 SDI-12 CR1000X (2024) Not Before Complete NLT Has new NEMA (2024) Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2174 – Dee River Ranch, AL RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION but tower has severe lean NEMA REPLACEMENT Mar 2027 Jul 2027

• Shore up tower with more concrete and/or new bolts to stabilize;

• Install new solar panel, dispose of old panel(s) appropriately;

• Replace NEMA with new NEMA. Move existing RV50X transmitter, battery (2021 C&D), and enclosure RH sensor (2024) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for cr1000Xe and send text to staff for back-end coordination (important!)

• Install new HMP155 head, shield, and cable (if needed). Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2114 – Livingston-UWA, AL RV50X SDI-12 CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2178 – Morris Farms, AL RV50X SDI-12 CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2176 – Selma, AL RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2115 – Tuskegee, AL RV50X Analog CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2175 – Wedowee, AL RV50 SDI-12 (4) CR1000X (2025) Not Before Complete NLT Has new NEMA (2025) Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors;

Site visit note: Vegetation management badly needed

2013 – Watkinsville #1, GA RV50 SDI-12 CR1000X (2020) Not Before Complete NLT

NON-STANDARD with shelter & 20’ Rohn tower Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors;

• Replace rusted out soils NEMA, if inventory permits Site visit note: Vegetation management badly needed

2064 – Starkville, MS RV50X SDI-12 CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

__ 2107 – Crossroads, NM RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Mar 2027 Jul 2027

• Install new HMP155 head, body, and shield. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2108 – Willow Wells, NM RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Mar 2027 Jul 2027

• Install new HMP155 head, body, and shield. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2022 – Fort Reno #1, OK RV50X SDI-12 CR1000X (2025) Not Before Complete NLT NONSTANDARD w/shelter Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors;

Site visit note: Continue to remove debris around site, if present. Watch your tires

2006 – Bushland #1, TX RV50X Analog CR1000X (2022) Not Before Complete NLT NONSTANDARD w/shelter Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2201 – Knox City, TX RV50X SDI-12 CR1000X (2024) Not Before Complete NLT STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2106 – Lehman, TX RV50X Analog CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2105 – Levelland, TX RV50X Analog CR1000X (2023) Not Before Complete NLT

Has new NEMA (2023) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2104 – Reese Center, TX RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2202 – Vernon, TX RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2207 – Beaumont, TX RV50X SDI-12 CR1000X (2022) Not Before Complete NLT STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2206 – Kingsville, TX RV50X SDI-12 CR1000X (2022) Not Before Complete NLT STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2228 – Nacogdoches, TX RV50 SDI-12 CR1000X (2025) Not Before Complete NLT

Has new NEMA (2025) Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

2016 – Prairie View, TX RV50X Analog CR1000X (2022) Not Before Complete NLT

NONSTANDARD w/shelter Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2199 – Riesel, TX RV50X SDI-12 CR1000X (2022) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2200 – San Angelo, TX RV50X SDI-12 CR1000X (2022) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2203 – Stephenville, TX RV50X SDI-12 CR1000X (2025) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2204 – Uvalde, TX RV50 SDI-12 CR1000X (2025) Not Before Complete NLT

STANDARD SITE CONFIGURATION Mar 2027 Jul 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2205 – Weslaco, TX RV50X SDI-12 CR1000X (2026) Not Before Complete NLT Has new NEMA (2026) Mar 2027 Jul 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2049 – Powder Mill, MD RV50X Analog CR1000X (2025) Not Before Complete NLT

NON-STANDARD with shelter & 20’ Rohn tower NEMA REPLACEMENT Apr 2027 Aug 2027

• Rebuild site to standard specs: Remove shelter building, shelter footings, and move all sensors to stable 20’ tower;

• Install new solar panel, dispose of old panel(s) appropriately;

• Install new NEMA. Move existing RV50X transmitter, battery (2023 C&D), and enclosure RH sensor (2025) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for cr1000Xe and ST300 and send text to staff for back-end coordination (important!)

• Install two full 10’ cross arms for WS/SR and TB/Temp RH. Install 5’ cross-arm on tower at 7’ (AGL) for ST300;

• Move anemometer, tipping bucket and pyranometer to new tower locations;

• Install new HMP155 head, shield and cable to new tower location. Return old sensor in protective packaging for calibration;

• Install ST300 temperature sensor inside RAD06 shield on new arm;

• Remove any other USDA, NRCS unused structures and recycle accordingly.

2008 – Tidewater #1, NC RV50X Analog CR1000X (2024) Not Before Complete NLT

NON-STANDARD with shelter & 20’ Rohn tower, TB on ground post Apr 2027 Aug 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors

2011 – Geneva #1, NY RV50 SDI-12 CR1000X (2021) Not Before Complete NLT

NON-STANDARD with shelter & 20’ Rohn tower Apr 2027 Aug 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors;

• Replace very badly rusted out soils NEMA and small MET NEMA, if inventory permits

2014 – Molly Caren #1, OH RV50 SDI-12 CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Apr 2027 Aug 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2028 – Mahantango Ck, PA RV50X Analog CR1000X (2021) Not Before Complete NLT NONSTANDARD w/snow depth Apr 2027 Aug 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace snow depth sensor with Sommer and install adequate snow depth target if none currently exists;

2036 – Rock Springs Pa, PA RV50 Analog CR1000X (2024) Not Before Complete NLT

Has new NEMA (2024) Apr 2027 Aug 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors;

• Add Sommer snow depth sensor and install adequate snow depth target. Program update required.

2039 – N Piedmont Arec, VA RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Apr 2027 Aug 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors – replace soils conduit

2089 – Reynolds Homestead, VA RV50X SDI-12 CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Apr 2027 Aug 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

• Return old logger in protective packaging;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors Site visit note: Lots of ants at this site

2088 – Shenandoah, VA RV50X Analog CR1000X (2025) Not Before Complete NLT

NEMA REPLACEMENT Apr 2027 Aug 2027

• Install new solar panel, dispose of old panel(s) appropriately;

• Replace NEMA with new NEMA. Move existing RV50X transmitter, battery (2021 - Duracell), and enclosure RH (2025) to new NEMA;

o return internal components, minus the transmitter, to SCAN staff;

• Install new program for cr1000Xe and send text to staff for back-end coordination (important!)

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2121 – Jordan, MT GOES Analog CR1000X (2022) Not Before Complete NLT STANDARD SITE CONFIGURATION Jun 2027 Oct 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Upgrade OS on datalogger to 8.4;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new program for ST300 and send text to staff for back-end coordination (important!)

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

581 – Lindsay, MT RV50X Analog CR1000X (2023) Not Before Complete NLT STANDARD SITE CONFIGURATION w/TB on ground w/shield Has new NEMA (2023) Jun 2027 Oct 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2120 – Sidney, MT RV50X Analog CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Jun 2027 Oct 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Add Sommer snow depth sensor and install adequate snow depth target. Program update required.

2020 – Mandan #1, ND RV50X Analog CR1000X (2023) Not Before Complete NLT

NONSTANDARD w/shelter Jun 2027 Oct 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors;

• Add Sommer snow depth sensor and install adequate snow depth target. Program update required.

2031 – Ames, IA RV50 Analog CR1000X (2020) Not Before Complete NLT

NONSTANDARD w/shelter Jul 2027 Nov 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2068 – Shagbark Hills, IA RV50 Analog CR1000X (2026) Not Before Complete NLT Has new NEMA (2026) Jul 2027 Nov 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2002 – Crescent Lake #1, MN RV50X Analog CR1000X (2020) Not Before Complete NLT

NONSTANDARD w/shelter Jul 2027 Nov 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace snow depth sensor with Sommer and install adequate snow depth target if none currently exists.

2050 – Glacial Ridge, MN RV50X Analog CR1000X (2024) Not Before Complete NLT

NONSTANDARD w/shelter Jul 2027 Nov 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all analog soil sensors and replace any nonfunctioning sensors;

• Replace snow depth sensor with Sommer and install adequate snow depth target if none currently exists

2111 – Johnson Farm, NE RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Jul 2027 Nov 2027

Prior – Sunleaf Nursery, VA _________________ Not Before Complete NLT

TOWER COMPONENT ONLY Jul 2027 Nov 2027

• Remove tower and footings and any remaining debris etc. from previous discontinuation of site. Recycle materials appropriately.

2072 – Eros Data Center, SD RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Jul 2027 Nov 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Add Sommer snow depth sensor and install adequate snow depth target. Program update required.

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2196 – UW Platteville, WI RV50 SDI-12 CR1000X (2020) Not Before Complete NLT STANDARD SITE CONFIGURATION Jul 2027 Nov 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2003 – Wabeno #1, WI RV50X Analog CR1000X (2026) Not Before Complete NLT

Has new NEMA (2026) Jul 2027 Nov 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Pyranometer removed due to heavy canopy

• Check all analog soil sensors and replace any nonfunctioning sensors

• Add Sommer snow depth sensor and install adequate snow depth target. Program update required.

2018 – Torrington #1, WY RV50 SDI-12 CR1000X (2020) Not Before Complete NLT

NONSTANDARD w/shelter Jul 2027 Nov 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2015 – Adams Ranch #1, NM RV50X Analog CR1000X (2021) Not Before Complete NLT

NONSTANDARD w/shelter Aug 2027 Dec 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all analog soil sensors and replace any nonfunctioning sensors

2172 – Alcalde, NM RV50X SDI-12 CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Aug 2027 Dec 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2168 – Jornada Exp Ranch, NM RV50 SDI-12 CR1000X (2021) Not Before Complete NLT STANDARD SITE CONFIGURATION Aug 2027 Dec 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2169 – Los Lunas PMC, NM RV50X SDI-12 CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Aug 2027 Dec 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2171 – Sevilleta, NM RV50X SDI-12 CR1000X (2021) Not Before Complete NLT

STANDARD SITE CONFIGURATION Aug 2027 Dec 2027

• Replace CR1000X datalogger with CR1000Xe. Install new program for Xe and send text to staff for back-end coordination (important!)

o Return old logger in protective packaging;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2233 – Thoreau, NM RV50X SDI-12 CR1000X (2022) Not Before Complete NLT

Has new NEMA (2022) STANDARD SITE CONFIGURATION w/short tower Aug 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2026 – Walnut Gulch #1, AZ RV50X Analog CR1000X (2024) Not Before Complete NLT

NONSTANDARD w/shelter Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2189 – Cochora Ranch, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2190 – Death Valley Jct, CA RV50 SDI-12 CR1000X (2024) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Replace RV50 transmitter with RV50X. Return old transmitter;

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2183 – Desert Center, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2185 – Essex, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2184 – Ford Dry Lake, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2217 – Monocline Ridge, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2186 – Shadow Mtns, CA RV50X SDI-12 CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

SCAN Site Maintenance Punchlist 124 Sites 2027 Contract

2219 – Stubblefield, CA GOES SDI-12 CR1000X (2023) Not Before Complete NLT STANDARD SITE CONFIGURATION, check for cell signal Sep 2027 Dec 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Upgrade OS on datalogger to 8.4;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new program for ST300 and send text to staff for back-end coordination (important!)

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Replace Pyranometer (2025) for calibration. Return old sensor;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2234 - Vallecitos, CA GOES SDI-12 CR1000X (2023) Not Before Complete NLT

NONSTANDARD SITE CONFIGURATION W/short tower Has new NEMA (2022) Sep 2027 Dec 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Upgrade OS on datalogger to 8.4;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new program for ST300 and send text to staff for back-end coordination (important!)

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

2240 - Chimney Creek, CA GOES SDI-12 CR1000X (2024) Not Before Complete NLT

STANDARD SITE CONFIGURATION Has new NEMA (2024) Sep 2027 Dec 2027

• Replace current GOES radio with Sutron setup. Return old components;

• Upgrade OS on datalogger to 8.4;

• Install AM 16/32B. Rewire sensors according to wiring diagram;

• Install new program for ST300 and send text to staff for back-end coordination (important!)

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2237 - Alabama Hills, CA RV50X SDI-12 (4) CR1000X (2023) Not Before Complete NLT

STANDARD SITE CONFIGURATION Has new NEMA (2023) Sep 2027 Dec 2027

• Install new HMP155 head. Return old sensor in protective packaging for calibration;

• Check all SDI-12 soil sensors and replace any nonfunctioning sensors

2180 – Koptis…