{"generated":"2026-11-01T09:21:17Z","source":"Water Quality Portal (waterqualitydata.us) \u2014 the joint EPA / USGS / NWQMC store of ambient water-quality samples filed by state agencies and USGS (surface-water samples, field measurements, and field replicates and duplicates of them; blanks, spikes and other quality-control checks, rejected results, other media and non-level statistics are excluded and counted)","attribution":["OpenStreetMap via Geofabrik extracts (ODbL) \u2014 \u00a9 OpenStreetMap contributors, https://www.openstreetmap.org/copyright"],"method":"Monitoring stations within 10 km of a mapped US facility, in the 453 half-degree cells that any US facility's 10 km radius touches (266 of them hold a facility). Every sample since 2019 for a fixed characteristic set, one series per station, characteristic and statistic code (and sample fraction for no3, p). A reading is flagged only against that station's OWN prior samples taken in the same season \u2014 within 1 month of the reading's calendar month, in any year, on an earlier day \u2014 robust median and MAD, 4 deviations, minimum 8 same-season sampling days (each day reduced to its median first). Counts and concentrations (ecoli, no3, p, spcond, turb) are judged on the log scale.","counts":{"cells_needed":453,"cells_queried":453,"cells_failed":0,"cells_holding_a_facility":266,"cells_not_in_cache":0,"cells_unanswered":0,"facilities_with_radius_in_an_unanswered_cell":0,"frame_facilities":1850,"frame_rule":"cc == US inside the contiguous-US box (-125 < lon < -66, 24 < lat < 50)","box_facilities_not_us_excluded":74,"stations_in_frame":311607,"stations_near_facilities":87712,"stations_listed":9002,"readings":22923,"flagged_vs_own_history":140,"flagged_and_current":28,"future_dated_readings_rejected":3,"not_judged_too_little_same_season_history":5561,"not_judged_log_undefined_no_positive_value":10,"not_judged_fewer_than_min_sampling_days_though_enough_rows":836,"not_judged_zero_spread":60,"results_excluded":{"media:Effluent":2,"media:Groundwater":321,"media:Leachate":3,"media:Municipal Waste":28,"media:Stormwater":259,"media_name:Air":16,"media_name:Biological Tissue":37,"media_name:Habitat":4,"media_name:Sediment":466,"media_name:Soil":10,"quality_control:Quality Control Field Sample Equipment Rinsate Blank":60,"quality_control:Quality Control Sample-Blind":8,"quality_control:Quality Control Sample-Equipment Blank":838,"quality_control:Quality Control Sample-Field Blank":1089,"quality_control:Quality Control Sample-Field Spike":2,"quality_control:Quality Control Sample-Lab Blank":81,"quality_control:Quality Control Sample-Other":4,"quality_control:Quality Control Sample-Trip Blank":206,"rejected":92,"statistic_not_a_level:delta":1926},"results_quality_control_kept_as_measurements":{"Quality Control Field Replicate Msr/Obs":1680,"Quality Control Field Replicate Portable Data Logger":1439,"Quality Control Sample-Blind Duplicate":16,"Quality Control Sample-Field Replicate":5861,"Quality Control Sample-Lab Duplicate":314},"results_medium_filed_as_other_kept":10299,"results_medium_filed_as_other_kept_by_organization_and_station_kind":{"TCEQMAIN | Canal Drainage":127,"TCEQMAIN | Channelized Stream":81,"TCEQMAIN | Lake":36,"TCEQMAIN | Reservoir":908,"TCEQMAIN | River/Stream":9147},"results_without_a_number_by_condition":{"do:(blank)":310,"do:Not Reported":1242,"do:Present Above Quantification Limit":1,"do:Present Below Quantification Limit":43,"do:Unable to Measure":38,"ecoli:(blank)":685,"ecoli:Below Method Detection Limit":42,"ecoli:Below Reporting Limit":92,"ecoli:Detected Not Quantified":1,"ecoli:Not Detected":3880,"ecoli:Not Reported":170,"ecoli:Present Above Quantification Limit":594,"ecoli:Present Below Quantification Limit":127,"no3:(blank)":37,"no3:Below Reporting Limit":522,"no3:Not Detected":1829,"no3:Not Reported":1135,"no3:Present Below Quantification Limit":630,"p:(blank)":239,"p:Below Method Detection Limit":134,"p:Below Reporting Limit":516,"p:Not Detected":2931,"p:Not Reported":2,"p:Present Above Quantification Limit":3,"p:Present Below Quantification Limit":544,"spcond:(blank)":167,"spcond:Detected Not Quantified":1,"spcond:Not Reported":15,"temp_c:(blank)":561,"temp_c:Not Detected":2,"temp_c:Not Reported":1158,"turb:(blank)":405,"turb:Below Reporting Limit":38,"turb:Detected Not Quantified":247,"turb:Not Detected":210,"turb:Not Reported":134,"turb:Present Above Quantification Limit":5,"turb:Present Below Quantification Limit":391,"turb:Unable to Measure":1},"results_numeric_but_undated":0,"readings_with_a_newer_non_detect":212,"facilities_indexed":1850,"facilities_with_a_station_within_near_km":1714,"facilities_with_no_station_within_near_km":136,"facilities_with_a_current_station_within_near_km":663,"facilities_whose_freshest_nearby_sample_is":{"current":663,"recent":392,"historical":659,"undated":0},"facilities_with_a_station_but_no_current_one":1051,"facilities_whose_radius_is_partly_unanswered":0,"characteristics":7},"temporal_frame":{"collected_on":"2026-11-01","age_basis":"age_days and currency count days from sampled_on to the collection day, 2026-11-01 (UTC), not to the day you read this; a reading ages one day per day after it","oldest_reading":"2019-01-07","newest_reading":"2026-10-28","median_reading_age_days":1089,"readings_current":1642,"readings_recent":3413,"readings_historical":17868,"stations_current":592,"current_within_days":120,"recent_within_days":400,"readings_predating_their_nearest_facility":0,"readings_whose_facility_vintage_is_unknown":22885,"frame_facilities":1850,"frame_facilities_with_start_date":60,"readings_with_a_known_start_within_near_km":388,"readings_predating_some_facility_within_near_km":33,"readings_with_no_known_start_within_near_km":22535,"median_facility_freshest_sample_age_days":222,"median_facility_freshest_sample_over":"the 1,714 of 1,850 US facilities in this frame that have a freshest nearby sample: a station within 10 km publishing at least one reading whose day could be placed in time. A facility with no station there, or none that filed a dated reading, has no age to take a median of and is not in it"},"flag_rule":{"baseline":"same_season","season_half_width_months":1,"min_same_season_samples":8,"deviations_to_flag":4.0,"spread":"median absolute deviation x 1.4826","history_is":"samples from earlier days only; same-day samples are the same event","history_unit":"sampling day: all samples filed for one date are reduced to their median before any count, baseline or flag; the reading's own value is its day's median, with samples_that_day, day_min and day_max beside it","min_same_season_days":8,"scale_by_characteristic":{"ecoli":"log","do":"linear","temp_c":"linear","spcond":"log","turb":"log","p":"log","no3":"log"},"log_floor":"values filed as a number at or below zero are set to half the smallest positive value in that station's series for that characteristic before the log; results filed with no number at all (non-detects below a limit) are not in any baseline and are counted in counts.results_without_a_number_by_condition","deviations_are":"robust deviations on the reading's baseline_scale; baseline_median is always in the reading's own units","zero_spread":"when more than half of a station's same-season sampling days share one value (on the reading's baseline scale), the spread is zero and no reading can be judged against it; such readings keep enough_history_to_flag, carry not_judged_reason=zero_spread and are counted in counts.not_judged_zero_spread"},"facility_freshness_rule":{"index_is":"one row for every US facility in this frame, including the ones with no station within 10 km \u2014 'no station' is the answer for those, not a missing row","near_km":10.0,"current_within_days":120,"freshest_sample":"the reading with the newest sampled_on at any station within near_km that publishes a reading here; ties break by the nearer station, then station id, then characteristic, then sample fraction, then statistic code \u2014 never by whether the reading is flagged, which is the reader's lead to choose","undated_readings":"a reading whose day could not be placed in time is never the freshest anything; its station is still counted, under currency 'undated'","nearest_current_station":"the nearest station within near_km whose OWN freshest reading is current \u2014 the same station currency published above, so the threshold here is current_within_days and cannot drift from it; ties break by station id","distances":"great-circle km from the facility to the station on a 6,371 km sphere, rounded to 0.1 km as every distance in this file is, and compared at that precision: where two stations round to the same distance the nearer one is not knowable from what is published, so the tie breaks by station id","when_there_is_none":"nearest_current_station is null and no_current_station_within_km carries the sentence, naming the radius and saying that stations beyond it were not sought; the sentence is written whenever there is none, never omitted","stations_counted":"stations within near_km that publish at least one reading in this file; a station within it that publishes none is counted separately, in stations_within_km_with_no_published_reading. That second number is usually the larger one and is not a list of stations anyone is ignoring: the station was fetched and filed nothing this instrument keeps \u2014 no result for these 7 characteristics, in the units kept, since 2019, that survived the exclusions counted above","nothing_recomputed":"an index over the readings already published above \u2014 no value, threshold, baseline or flag is derived here, and none of them moves","no_value_here":"a row names the station, the characteristic and the day, not the number: in this file a value never appears without value_is, samples_that_day and the day's range beside it, and that reading is one shard fetch away under the station and date given"},"sparse_keys":{"fraction":"reading: present only for no3, p when a fraction is filed","statistic_base":"reading: present only when the result carries a statistic code; absent = a sample","not_judged_reason":"reading: present only when a reading with enough history still could not be judged","predates_some_facility_within_near_km":"reading: present only when a start date is known for a facility within the radius; absent = unknown","predates_every_known_facility_within_near_km":"reading: as above","last_non_detect_result":"reading and station: present only when a below-limit result with no number exists for that series","non_detect_results_after_last_numeric":"reading: present with last_non_detect_result","exceeds_epa_stv_value":"reading: E. coli only","epa_comparison_basis":"reading: E. coli only \u2014 'single sample', 'median of N samples that day', or for a row filed with a statistic code 'statistic: <code>' (or 'statistic: median of N <code> values filed for that day')","known_start_years_within_near_km":"station: present only when at least one is known","operator":"facility: present only when the register names one","stations_within_km_with_no_published_reading":"facility: present only when at least one station within the radius filed nothing this collection keeps; see facility_freshness_rule.stations_counted","no_current_station_within_km":"facility: present exactly when nearest_current_station is null","radius_partly_unanswered":"facility: present only when part of the radius is in an unanswered cell"},"epa_threshold_cited":"US EPA 2012 Recreational Water Quality Criteria (EPA-820-F-12-058), E. coli in fresh water: a geometric mean of 126 cfu/100mL, and a statistical threshold value (STV) of 410 cfu/100mL that approximates the 90th percentile and should not be exceeded by more than 10% of samples in a 30-day interval. One value above 410 is not by itself an exceedance of the criterion","units_dropped_not_converted":{"spcond:uS/cm":209401,"p:ug/L":13401,"ecoli:MPN/100mL":40607,"spcond:umho/cm":74529,"spcond:mS/cm":13335,"temp_c:deg F":98612,"ecoli:None":7505,"ecoli:hours":3545,"no3:mg/l as N":7318,"p:mg/l as P":20368,"turb:FNU":39769,"no3:mg/l asNO3":6708,"spcond:nu":180,"do:deg C":23,"temp_c:uS/cm":10,"do:m":11,"temp_c:m":14,"turb:NTRU":4046,"turb:None":150,"do:uS/cm":9,"ecoli:MPN/100 ml":6532,"do:None":11,"temp_c:mg/L":17,"turb:JTU":278,"do:ppm":290,"do:in":10,"temp_c:days":12,"temp_c:None":469,"temp_c:in":5,"do:days":10,"ecoli:#/100mL":3773,"ecoli:MPN":5052,"ecoli:#/mL":28,"turb:cm":196,"p:ug/l":35,"ecoli:CFU":2607,"do:%":12348,"no3:None":6,"p:None":12,"spcond:None":85,"temp_c:%":5,"temp_c:mS/cm":5,"temp_c:Deg":612,"no3:ppm":54,"p:ppb":2},"values_outside_physical_range":{"dropped_by_characteristic_and_filed_unit":{"do:mg/L":214,"temp_c:deg C":58},"ceilings":{"do":"25 mg/L \u2014 oxygen's solubility in fresh water is about 14.6 mg/L at 0 degC and falls with temperature; above 25 the filed number is a per-cent saturation or another quantity, not a concentration","temp_c":"50 degC \u2014 surface water in a stream, lake or estuary, the media this instrument keeps; above it the filed number is not an ambient water temperature"},"no_ceiling_asserted":["ecoli","no3","p","spcond","turb"],"negative_values_kept_by_characteristic":{"temp_c":1140,"no3":14,"turb":11,"do":897},"no_floor_applied":"No lower bound is applied. A negative concentration is this quantity read by a probe with a calibration offset in water that holds almost none, not a different quantity, and removing it would raise those stations' own baselines and make every future low reading look less unusual than it is. A sub-zero water temperature is a plausibility judgement, not a unit limit. Both are kept, and counted below.","plain":"Rows whose filed unit says one thing and whose magnitude says another \u2014 a per-cent saturation filed as mg/L, a logger reading filed as a water temperature. They are dropped where they enter, before any median, baseline, flag or latest reading, and counted here. A ceiling is asserted only where one can be cited; where none can, none is applied and nothing is cut."},"future_dated_rejected":[{"station":"21FLORL-CONCORD","characteristic":"do","sampled_on_as_filed":"2805-12-28","value":10.59},{"station":"21FLORL-CONCORD","characteristic":"temp_c","sampled_on_as_filed":"2805-12-28","value":16.15},{"station":"TDECWPC-WFSTO006.2RU","characteristic":"p","sampled_on_as_filed":"5005-05-23","value":0.58}],"plain":"What the water near mapped data centres actually measures \u2014 bacteria, oxygen, temperature, dissolved solids, nutrients and clarity \u2014 taken from samples that state agencies and the US Geological Survey file publicly. A reading is marked unusual only when it stands apart from that same station's own past, so the comparison is always a place against itself. This is the condition of the water in the districts where computing is concentrating. It is not a measure of what any one building did to it.","caveats":["EVERY READING IS DATED AND MANY ARE OLD. These are grab samples taken on agency schedules, not a live feed: a station may be visited quarterly, or once years ago and never since. Each reading carries the day it was taken, its age in days at collection (2026-11-01), and whether it was current, recent or historical on that day \u2014 every reading is a day older for each day since. Nothing here describes conditions today unless its own date says so, and a station's position in any list never implies freshness.","A reading taken before a facility existed cannot be about that facility. The register knows a start date for 60 of the 1,850 US facilities in this frame (3.2%). For every facility within 10 km of a station whose start date is known, the comparison is made and published; that was possible for 388 of 22,923 readings, so for the rest the answer is explicitly unknown rather than assumed to pass.","Proximity is not causation, and for most of these measures it is not even a plausible route. Bacteria in a stream comes overwhelmingly from farms, sewage, wildlife and storm runoff; a data centre does not emit it. Nothing here attributes a reading to a facility.","A flag means a reading stands apart from that station's own history. It does not mean a legal limit was crossed. Water-quality standards are set state by state and by designated use, and this instrument does not assert them. The single exception is quoted with its source: EPA's recreational E. coli statistical threshold value, a 30-day 90th-percentile criterion, not a single-sample limit \u2014 a reading above that value is not by itself an exceedance, and whether it is one sample or a day's median is stated.","A station with too little history is never flagged, and says so. Quiet because nothing is known is different from quiet because nothing is happening. A station whose same-season samples are mostly one repeated value has no spread to judge against, and says that instead.","A UNIT STRING CAN BE FALSE, and where the magnitude proves it, the row is dropped and counted. Some laboratories file per-cent-saturation numbers under the unit mg/L; read as concentrations they are several times what oxygen can dissolve to. A ceiling is asserted for only the two measures where one can be cited rather than judged \u2014 dissolved oxygen above 25 mg/L and water above 50 degC cannot be that quantity in that unit \u2014 and rows above it are removed where they enter, before any median, baseline, flag or latest reading, with the count published by measure and filed unit. No LOWER bound is applied to anything: a slightly negative concentration is a probe reading true zero with a calibration offset, and deleting those would raise the very baselines they belong to, making future low readings look less unusual than they are. Those rows are kept and their count published too, so what was left in is as visible as what was taken out.","History is counted in sampling DAYS, not rows. Sensors and depth profiles file many rows on one date; each date is reduced to its median first, so a single busy visit cannot stand in for a season, and a reading's value on such a day is that day's median, published with how many samples it summarises and their range.","Each reading is compared only with samples from the same time of year. Bacteria, temperature and oxygen swing with the seasons, and a baseline pooled across the whole year does two wrong things at once, both demonstrated on a synthetic station with a seasonal cycle and no trend: it marks ordinary summer values as unusual, and it cannot see a genuine winter spike at all. The cost is that a station needs several years of visits in the same months before it can be judged, and the number of readings left unjudged for that reason is published.","Bacteria counts, turbidity, nutrients and conductance are judged on a logarithmic scale. These measures naturally swing by large multiples, and judged on their raw values roughly one ordinary bacteria sample in twelve would be marked unusual. The cost is that a single moderately high sample at a station that varies widely is often not flagged, because at that station it is not unusual.","Samples are taken on schedules that suit the agency taking them, not this register. A gap is an unvisited station, never a clean one.","Readings filed in a unit other than the one kept here are dropped rather than converted, and the count of what was dropped is published. A silent conversion is a derivation nobody can check.","United States only: stations near US facilities. Canadian and Mexican facilities in the register are outside this frame, and there, as everywhere outside the US, this instrument is blind rather than clean.","Only measurements of the water itself are used. Quality-control checks that are not the stream (blanks, spikes, calibration checks, reference samples), results their own agency marked rejected, results filed under another medium (sediment, soil, tissue, air, habitat) or another kind of water (effluent, groundwater, stormwater), and statistics that are not a level (a delta, a standard error) are excluded, and each is counted by reason. Field replicates, duplicates and splits are second measurements of the same water and are kept, counted by type; so are results whose medium is filed only as 'Other' with no subdivision: 10,299 kept results in this collection, filed by TCEQMAIN (10,299) at stations of kind River/Stream (9,147), Reservoir (908), Canal Drainage (127), Channelized Stream (81), Lake (36), counted by organization and station kind.","Results filed with no number \u2014 a non-detect below a laboratory's limit, or a result not reported \u2014 are in no value and no baseline. They are counted by condition, and where a below-limit result is newer than a reading's last number, the reading says so.","Coverage: stations were sought in the 453 half-degree cells that any US facility's 10 km radius touches (266 of them hold a facility).","Freshness is published per facility as well as per station, because one old reading is not an account of a place. Each of the 1,850 US facilities in this frame carries a row saying how many of its stations are current, recent and historical. 1,714 of them have a station within 10 km that publishes a reading here, and those carry the freshest sample taken at any of them; the other 136 have none, and say so. 663 name the nearest station whose own last sample is within 120 days; the remaining 1,187 say in a sentence that there is none within the radius, and name the radius, rather than leaving the field out. This index changes nothing above it: a facility whose stations are all historical has old water data because that is when the agencies sampled there, and stations beyond 10 km were never sought, so nothing here says anything about them."],"facilities":[{"id":"n751881301","name":"CoreSite DC1","operator":"CoreSite","stations":137,"stations_by_currency":{"current":2,"recent":65,"historical":70,"undated":0},"freshest_sample":{"station":"21VASWCB-PMS10","distance_km":3.5,"characteristic":"do","sampled_on":"2026-09-08","age_days":54,"currency":"current"},"nearest_current_station":{"station":"21VASWCB-PMS10","distance_km":3.5,"days_since_last_sample":54},"stations_within_km_with_no_published_reading":1135},{"id":"n1825907839","name":"Southwest Cyberport","stations":9,"stations_by_currency":{"current":0,"recent":0,"historical":9,"undated":0},"freshest_sample":{"station":"AMAFCA-Main Hahn","distance_km":2.9,"characteristic":"do","sampled_on":"2024-11-04","age_days":727,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":114,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n2607827436","name":"SDSU Computer Room","stations":6,"stations_by_currency":{"current":0,"recent":0,"historical":6,"undated":0},"freshest_sample":{"station":"CEDEN-907ALVPED","distance_km":0.8,"characteristic":"p","sampled_on":"2022-06-23","age_days":1592,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":83,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n3406467087","name":"NocRoom Miami IT Services","stations":44,"stations_by_currency":{"current":0,"recent":22,"historical":22,"undated":0},"freshest_sample":{"station":"21FLBBAP_WQX-MRSC","distance_km":6.0,"characteristic":"do","sampled_on":"2026-06-23","age_days":131,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":251,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n3406476814","name":"NocRoom Miami IT Services","stations":16,"stations_by_currency":{"current":0,"recent":6,"historical":10,"undated":0},"freshest_sample":{"station":"21FLDADE_WQX-CD09","distance_km":2.6,"characteristic":"do","sampled_on":"2026-05-14","age_days":171,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":171,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n3468203102","name":"Center for Computation & Technology (CCT)","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"LADEQWPD_WQX-0583","distance_km":5.7,"characteristic":"do","sampled_on":"2024-10-08","age_days":754,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":62,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n3732415309","name":"The Pittock Internet Exchange","operator":"Alco Properties","stations":14,"stations_by_currency":{"current":0,"recent":5,"historical":9,"undated":0},"freshest_sample":{"station":"OREGONDEQ-10611-ORDEQ","distance_km":1.2,"characteristic":"do","sampled_on":"2026-06-30","age_days":124,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":2508,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n4879481820","name":"Google Fiber","operator":"Google","stations":16,"stations_by_currency":{"current":1,"recent":4,"historical":11,"undated":0},"freshest_sample":{"station":"21GAEPD_WQX-RV_12_4316","distance_km":6.6,"characteristic":"do","sampled_on":"2026-09-16","age_days":46,"currency":"current"},"nearest_current_station":{"station":"21GAEPD_WQX-RV_12_4316","distance_km":6.6,"days_since_last_sample":46},"stations_within_km_with_no_published_reading":255},{"id":"n5146323411","name":"Open Computing Facility","stations":7,"stations_by_currency":{"current":0,"recent":0,"historical":7,"undated":0},"freshest_sample":{"station":"NALMS-F236093","distance_km":3.7,"characteristic":"do","sampled_on":"2023-07-24","age_days":1196,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":194,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n5225685660","name":"Lumos Networks","stations":29,"stations_by_currency":{"current":2,"recent":1,"historical":26,"undated":0},"freshest_sample":{"station":"21VASWCB-2BFWN000.66","distance_km":6.8,"characteristic":"do","sampled_on":"2026-10-20","age_days":12,"currency":"current"},"nearest_current_station":{"station":"21VASWCB-2-JMS258.54","distance_km":1.0,"days_since_last_sample":52},"stations_within_km_with_no_published_reading":103},{"id":"n6401035673","name":"Rack59 Data Center","stations":5,"stations_by_currency":{"current":0,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"USGS-07241000","distance_km":1.8,"characteristic":"spcond","sampled_on":"2024-02-21","age_days":984,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":36,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n6625492701","name":"Oso Grande","operator":"Oso Grande","stations":14,"stations_by_currency":{"current":0,"recent":0,"historical":14,"undated":0},"freshest_sample":{"station":"AMAFCA-San Antonio-1","distance_km":7.0,"characteristic":"do","sampled_on":"2025-09-10","age_days":417,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":134,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n6793837329","name":"Morgan Wireless","stations":26,"stations_by_currency":{"current":0,"recent":0,"historical":26,"undated":0},"freshest_sample":{"station":"MDEDAT05_WQX-POT2386","distance_km":8.5,"characteristic":"do","sampled_on":"2025-08-21","age_days":437,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":252,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not 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reported near it; stations beyond 10 km were not sought."},{"id":"n13720841437","name":"Windstream","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":47,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"n13720841438","name":"TulsaConnect","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":47,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"n13746843366","name":"Digital Fortress - 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km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n13746843368","name":"Digital Fortress - Portland 3","operator":"Digital Fortress, Inc","stations":12,"stations_by_currency":{"current":0,"recent":2,"historical":10,"undated":0},"freshest_sample":{"station":"OREGONDEQ-10469-ORDEQ","distance_km":7.0,"characteristic":"do","sampled_on":"2026-07-01","age_days":123,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":661,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n13748555787","name":"H5 DC - Portland","operator":"H5 Data 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last 120 days; stations beyond 10 km were not sought."},{"id":"n13873419223","name":"OCOSA","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":45,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"n13908533343","name":"Iron City No. 1 Power Generator and Compute Center","stations":16,"stations_by_currency":{"current":0,"recent":2,"historical":14,"undated":0},"freshest_sample":{"station":"21PA_WQX-Q1","distance_km":4.3,"characteristic":"do","sampled_on":"2026-03-10","age_days":236,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":105,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 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has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14085787302","name":"4421.io","operator":"4421.io","stations":113,"stations_by_currency":{"current":0,"recent":71,"historical":42,"undated":0},"freshest_sample":{"station":"SKAGITWG_WQX-3476","distance_km":9.7,"characteristic":"do","sampled_on":"2026-04-28","age_days":187,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":63,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14086231277","name":"(unnamed)","operator":"UNMH","stations":14,"stations_by_currency":{"current":0,"recent":0,"historical":14,"undated":0},"freshest_sample":{"station":"AMAFCA-San Antonio-1","distance_km":9.6,"characteristic":"do","sampled_on":"2025-09-10","age_days":417,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":129,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14101687012","name":"Precision Prints Lufkin Datacenter","stations":10,"stations_by_currency":{"current":0,"recent":9,"historical":1,"undated":0},"freshest_sample":{"station":"TCEQMAIN-10499","distance_km":6.1,"characteristic":"p","sampled_on":"2026-04-01","age_days":214,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":20,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14124760832","name":"DartPoints Baton Rouge 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last 120 days; stations beyond 10 km were not sought."},{"id":"n14124769105","name":"DartPoints Shreveport","operator":"DartPoints","stations":4,"stations_by_currency":{"current":0,"recent":0,"historical":4,"undated":0},"freshest_sample":{"station":"LADEQWPD_WQX-0120","distance_km":4.0,"characteristic":"do","sampled_on":"2024-10-28","age_days":734,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":60,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14124808826","name":"DartPoints 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from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14124835505","name":"DartPoints Asheville","stations":8,"stations_by_currency":{"current":0,"recent":3,"historical":5,"undated":0},"freshest_sample":{"station":"21NC03WQ-E4170000","distance_km":9.0,"characteristic":"do","sampled_on":"2025-12-16","age_days":320,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":136,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14156477686","name":"Equinix Ashburn 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sought."},{"id":"n14277048779","name":"Expedient Pittsburgh Nova Place","operator":"Expedient","stations":30,"stations_by_currency":{"current":0,"recent":0,"historical":30,"undated":0},"freshest_sample":{"station":"21PA_WQX-15UNTGR","distance_km":4.1,"characteristic":"do","sampled_on":"2025-05-28","age_days":522,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":147,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14277390413","name":"ValorC3","operator":"ValorC3","stations":10,"stations_by_currency":{"current":0,"recent":2,"historical":8,"undated":0},"freshest_sample":{"station":"UTAHDWQ_WQX-4950090","distance_km":2.3,"characteristic":"do","sampled_on":"2025-12-04","age_days":332,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":26,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"n14311071436","name":"HostDime","operator":"HostDime","stations":305,"stations_by_currency":{"current":1,"recent":30,"historical":274,"undated":0},"freshest_sample":{"station":"21FLCEN_WQX-G2CE0099","distance_km":4.4,"characteristic":"do","sampled_on":"2026-07-13","age_days":111,"currency":"current"},"nearest_current_station":{"station":"21FLCEN_WQX-G2CE0099","distance_km":4.4,"days_since_last_sample":111},"stations_within_km_with_no_published_reading":1284},{"id":"n14311071437","name":"Atlantic.net","operator":"Atlantic.net","stations":308,"stations_by_currency":{"current":1,"recent":31,"historical":276,"undated":0},"freshest_sample":{"station":"21FLCEN_WQX-G2CE0099","distance_km":4.4,"characteristic":"do","sampled_on":"2026-07-13","age_days":111,"currency":"current"},"nearest_current_station":{"station":"21FLCEN_WQX-G2CE0099","distance_km":4.4,"days_since_last_sample":111},"stations_within_km_with_no_published_reading":1290},{"id":"a51412686","name":"Cyxtera 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km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a59655908","name":"CoreSite BO1","stations":75,"stations_by_currency":{"current":0,"recent":12,"historical":63,"undated":0},"freshest_sample":{"station":"CRWA-784S","distance_km":1.8,"characteristic":"p","sampled_on":"2025-12-09","age_days":327,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":368,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a61333580","name":"USPO Terminal Annex","operator":"United States Postal 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sought."},{"id":"a62501862","name":"CyrusOne Cincinnati-Mason CIN3","operator":"CyrusOne","stations":7,"stations_by_currency":{"current":0,"recent":0,"historical":7,"undated":0},"freshest_sample":{"station":"21OHIO_WQX-M05W25","distance_km":5.2,"characteristic":"do","sampled_on":"2024-04-16","age_days":929,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":150,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a63600848","name":"LightEdge SAN1","stations":4,"stations_by_currency":{"current":0,"recent":0,"historical":4,"undated":0},"freshest_sample":{"station":"CEDEN-907ALVPED","distance_km":8.4,"characteristic":"p","sampled_on":"2022-06-23","age_days":1592,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":130,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a63607030","name":"EdgeConneX San Diego","operator":"EdgeConneX","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"CEDEN-907SDRWAR","distance_km":8.9,"characteristic":"do","sampled_on":"2020-06-11","age_days":2334,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":148,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a65120580","name":"RagingWire 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this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a69541500","name":"Hewlett-Packard","stations":2,"stations_by_currency":{"current":1,"recent":1,"historical":0,"undated":0},"freshest_sample":{"station":"21GAEPD_WQX-RV_12_3854","distance_km":9.1,"characteristic":"do","sampled_on":"2026-09-16","age_days":46,"currency":"current"},"nearest_current_station":{"station":"21GAEPD_WQX-RV_12_3854","distance_km":9.1,"days_since_last_sample":46},"stations_within_km_with_no_published_reading":72},{"id":"a70983152","name":"Equinix SV1","operator":"Equinix","stations":20,"stations_by_currency":{"current":0,"recent":0,"historical":20,"undated":0},"freshest_sample":{"station":"NARS_WQX-NRS_CA-11193","distance_km":5.2,"characteristic":"no3","sampled_on":"2023-06-22","age_days":1228,"currency":"historical","fraction":"Dissolved"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":113,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a73794280","name":"(unnamed)","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"21OHIO_WQX-Q01S03","distance_km":4.0,"characteristic":"do","sampled_on":"2023-07-24","age_days":1196,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":117,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a75755088","name":"Lumen Sunnyvale 1","operator":"Lumen 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stations beyond 10 km were not sought."},{"id":"a674253478","name":"Intergate Seattle West Building C","operator":"Sabey","stations":5,"stations_by_currency":{"current":0,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"WDFW-king_674","distance_km":6.0,"characteristic":"do","sampled_on":"2025-03-26","age_days":585,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":2264,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674253482","name":"Intergate Seattle West Building B","operator":"Sabey","stations":5,"stations_by_currency":{"current":0,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"WDFW-king_674","distance_km":6.0,"characteristic":"do","sampled_on":"2025-03-26","age_days":585,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":2264,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674253484","name":"Intergate Seattle West Building A","operator":"Sabey","stations":5,"stations_by_currency":{"current":0,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"WDFW-king_674","distance_km":6.1,"characteristic":"do","sampled_on":"2025-03-26","age_days":585,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":2265,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674255634","name":"Vantage WA11","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"1119USBR_WQX-CBP083","distance_km":6.5,"characteristic":"do","sampled_on":"2022-09-28","age_days":1495,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":10,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674255648","name":"NTT Data Quincy","operator":"NTT","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"1119USBR_WQX-CBP083","distance_km":3.5,"characteristic":"do","sampled_on":"2022-09-28","age_days":1495,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":10,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674255664","name":"(unnamed)","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"1119USBR_WQX-CBP083","distance_km":3.2,"characteristic":"do","sampled_on":"2022-09-28","age_days":1495,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":10,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a674255666","name":"(unnamed)","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"1119USBR_WQX-CBP083","distance_km":3.2,"characteristic":"do","sampled_on":"2022-09-28","age_days":1495,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":10,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a685329478","name":"Geneseo Communications Inc","stations":2,"stations_by_currency":{"current":0,"recent":0,"historical":2,"undated":0},"freshest_sample":{"station":"IL_EPA_WQX-M-02","distance_km":7.8,"characteristic":"do","sampled_on":"2022-10-18","age_days":1475,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":371,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a686667888","name":"Lumen Minneapolis 3","operator":"Lumen Technologies","stations":122,"stations_by_currency":{"current":0,"recent":37,"historical":85,"undated":0},"freshest_sample":{"station":"MNPCA-S008-847","distance_km":2.0,"characteristic":"no3","sampled_on":"2025-12-18","age_days":318,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":265,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a687187182","name":"(unnamed)","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"IL_EPA_WQX-GBK-09","distance_km":3.4,"characteristic":"do","sampled_on":"2022-10-04","age_days":1489,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":188,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a691300948","name":"(unnamed)","stations":63,"stations_by_currency":{"current":1,"recent":5,"historical":57,"undated":0},"freshest_sample":{"station":"IEC-NYNJCT-21NJDEP1_01404170","distance_km":5.1,"characteristic":"do","sampled_on":"2026-08-18","age_days":75,"currency":"current"},"nearest_current_station":{"station":"IEC-NYNJCT-21NJDEP1_01404170","distance_km":5.1,"days_since_last_sample":75},"stations_within_km_with_no_published_reading":446},{"id":"a699850718","name":"(unnamed)","operator":"Verizon Wireless","stations":5,"stations_by_currency":{"current":0,"recent":1,"historical":4,"undated":0},"freshest_sample":{"station":"INSTOR_WQX-20541","distance_km":9.3,"characteristic":"do","sampled_on":"2025-12-11","age_days":325,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":52,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a709180864","name":"(unnamed)","stations":71,"stations_by_currency":{"current":13,"recent":5,"historical":53,"undated":0},"freshest_sample":{"station":"IEC-NYNJCT-NJHDG_14","distance_km":1.4,"characteristic":"do","sampled_on":"2026-09-01","age_days":61,"currency":"current"},"nearest_current_station":{"station":"IEC-NYNJCT-NJHDG_14","distance_km":1.4,"days_since_last_sample":61},"stations_within_km_with_no_published_reading":340},{"id":"a711853362","name":"Flexential Salt Lake City - South Valley","operator":"Flexential","stations":30,"stations_by_currency":{"current":0,"recent":3,"historical":27,"undated":0},"freshest_sample":{"station":"WFWQC_UT-4994160","distance_km":5.4,"characteristic":"do","sampled_on":"2025-10-09","age_days":388,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":61,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a716910358","name":"Digital Realty Silicon Valley SC1","operator":"Digital Realty","stations":16,"stations_by_currency":{"current":0,"recent":0,"historical":16,"undated":0},"freshest_sample":{"station":"USGS-11169025","distance_km":1.6,"characteristic":"temp_c","sampled_on":"2022-12-03","age_days":1429,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":109,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a717893092","name":"QES Computers","stations":21,"stations_by_currency":{"current":0,"recent":0,"historical":21,"undated":0},"freshest_sample":{"station":"USGS-11174600","distance_km":1.5,"characteristic":"temp_c","sampled_on":"2022-05-05","age_days":1641,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":89,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a719860930","name":"Equinix SE3 Data Center","operator":"Equinix","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":1612,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"a725324986","name":"QTS Piscataway Data Center","operator":"QTS","stations":61,"stations_by_currency":{"current":1,"recent":4,"historical":56,"undated":0},"freshest_sample":{"station":"IEC-NYNJCT-21NJDEP1_01404170","distance_km":5.7,"characteristic":"do","sampled_on":"2026-08-18","age_days":75,"currency":"current"},"nearest_current_station":{"station":"IEC-NYNJCT-21NJDEP1_01404170","distance_km":5.7,"days_since_last_sample":75},"stations_within_km_with_no_published_reading":444},{"id":"a726034750","name":"AiNET","stations":22,"stations_by_currency":{"current":0,"recent":12,"historical":10,"undated":0},"freshest_sample":{"station":"MDE_FIELDSERVICES_WQX-GBL0010","distance_km":6.4,"characteristic":"do","sampled_on":"2025-10-20","age_days":377,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":802,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a728578146","name":"Microsoft","operator":"Microsoft","stations":4,"stations_by_currency":{"current":0,"recent":1,"historical":3,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12735","distance_km":10.0,"characteristic":"no3","sampled_on":"2026-02-05","age_days":269,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":25,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a728578148","name":"Microsoft San Antonio","operator":"Microsoft","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"TXSTRMTM_WQX-81801","distance_km":6.5,"characteristic":"do","sampled_on":"2025-02-17","age_days":622,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":25,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a728578154","name":"Microsoft","operator":"Microsoft","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"TXSTRMTM_WQX-81801","distance_km":6.1,"characteristic":"do","sampled_on":"2025-02-17","age_days":622,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":25,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a732099686","name":"Lumen Norristown","operator":"Lumen Technologies","stations":8,"stations_by_currency":{"current":0,"recent":2,"historical":6,"undated":0},"freshest_sample":{"station":"21PA_WQX-WQN0116","distance_km":4.9,"characteristic":"do","sampled_on":"2026-03-24","age_days":222,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":186,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a737448948","name":"Equinix DC7","operator":"Equinix","stations":24,"stations_by_currency":{"current":1,"recent":2,"historical":21,"undated":0},"freshest_sample":{"station":"21VASWCB-1ADIF000.86","distance_km":7.7,"characteristic":"do","sampled_on":"2026-10-14","age_days":18,"currency":"current"},"nearest_current_station":{"station":"21VASWCB-1ADIF000.86","distance_km":7.7,"days_since_last_sample":18},"stations_within_km_with_no_published_reading":630},{"id":"a738905144","name":"Pittock Block","stations":14,"stations_by_currency":{"current":0,"recent":5,"historical":9,"undated":0},"freshest_sample":{"station":"OREGONDEQ-10611-ORDEQ","distance_km":1.2,"characteristic":"do","sampled_on":"2026-06-30","age_days":124,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":2508,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a739457016","name":"Data Center","operator":"Oregon Health & Science University","stations":10,"stations_by_currency":{"current":0,"recent":3,"historical":7,"undated":0},"freshest_sample":{"station":"OREGONDEQ-10480-ORDEQ","distance_km":2.0,"characteristic":"do","sampled_on":"2026-04-28","age_days":187,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":208,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a742982252","name":"AT&T Tuckerton Cable Landing Station (TAT-14)","operator":"AT&T","stations":29,"stations_by_currency":{"current":0,"recent":8,"historical":21,"undated":0},"freshest_sample":{"station":"NJDEP_BB-BT12","distance_km":3.3,"characteristic":"do","sampled_on":"2026-06-18","age_days":136,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":692,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a747827762","name":"Cisco Allen","stations":19,"stations_by_currency":{"current":3,"recent":3,"historical":13,"undated":0},"freshest_sample":{"station":"TXSTRMTM_WQX-15064","distance_km":4.7,"characteristic":"do","sampled_on":"2026-07-21","age_days":103,"currency":"current"},"nearest_current_station":{"station":"TXSTRMTM_WQX-15064","distance_km":4.7,"days_since_last_sample":103},"stations_within_km_with_no_published_reading":31},{"id":"a747890372","name":"Meta","operator":"Meta","stations":6,"stations_by_currency":{"current":0,"recent":0,"historical":6,"undated":0},"freshest_sample":{"station":"USGS-441922120530100","distance_km":3.1,"characteristic":"spcond","sampled_on":"2024-02-20","age_days":985,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":49,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a753254862","name":"CSSNW Bellingham","operator":"CSS Communications","stations":51,"stations_by_currency":{"current":0,"recent":2,"historical":49,"undated":0},"freshest_sample":{"station":"LUMMINSN_WQX-LUMMI0647","distance_km":8.8,"characteristic":"do","sampled_on":"2025-12-08","age_days":328,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":85,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a754064116","name":"EdgeConneX CHI02","operator":"EdgeConneX","stations":11,"stations_by_currency":{"current":0,"recent":0,"historical":11,"undated":0},"freshest_sample":{"station":"USGS-420204087520701","distance_km":7.8,"characteristic":"spcond","sampled_on":"2023-03-07","age_days":1335,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":233,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a754064122","name":"Equinix Chicago CH3","operator":"Equinix","stations":11,"stations_by_currency":{"current":0,"recent":0,"historical":11,"undated":0},"freshest_sample":{"station":"USGS-420204087520701","distance_km":8.1,"characteristic":"spcond","sampled_on":"2023-03-07","age_days":1335,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":233,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a754425386","name":"Element Critical CH2","operator":"Element Critical","stations":9,"stations_by_currency":{"current":0,"recent":0,"historical":9,"undated":0},"freshest_sample":{"station":"IL_EPA_WQX-G-15","distance_km":9.6,"characteristic":"do","sampled_on":"2022-10-06","age_days":1487,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":261,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a754690592","name":"Centersquare Elk Grove Village Data Center Campus ORD2","operator":"Centersquare","stations":11,"stations_by_currency":{"current":0,"recent":0,"historical":11,"undated":0},"freshest_sample":{"station":"USGS-420204087520701","distance_km":8.8,"characteristic":"spcond","sampled_on":"2023-03-07","age_days":1335,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":235,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a754757190","name":"Digital Realty","operator":"Digital Realty","stations":8,"stations_by_currency":{"current":0,"recent":0,"historical":8,"undated":0},"freshest_sample":{"station":"NALMS-F234279","distance_km":2.3,"characteristic":"turb","sampled_on":"2023-07-24","age_days":1196,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":253,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a755090770","name":"Flexential Denver - Englewood","operator":"Flexential","stations":5,"stations_by_currency":{"current":0,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"21COL001_WQX-CO0041092-D/S","distance_km":6.7,"characteristic":"no3","sampled_on":"2024-12-12","age_days":689,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":66,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a755170150","name":"EdgeConneX Detroit DET01","operator":"EdgeConneX","stations":8,"stations_by_currency":{"current":0,"recent":0,"historical":8,"undated":0},"freshest_sample":{"station":"21MICH_WRD-631294","distance_km":0.6,"characteristic":"do","sampled_on":"2025-08-18","age_days":440,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":290,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758390108","name":"Lumen Austin 3","operator":"Lumen Technologies","stations":20,"stations_by_currency":{"current":0,"recent":0,"historical":20,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12294","distance_km":7.1,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":222,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758399038","name":"Alpheus DataCenter","operator":"Alpheus","stations":21,"stations_by_currency":{"current":0,"recent":0,"historical":21,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12294","distance_km":7.2,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":224,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758408558","name":"Digital Realty Austin AUS11","stations":13,"stations_by_currency":{"current":0,"recent":0,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12436","distance_km":3.8,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":178,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758409286","name":"LightEdge Austin II","stations":14,"stations_by_currency":{"current":0,"recent":1,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12185","distance_km":10.0,"characteristic":"p","sampled_on":"2026-06-29","age_days":125,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":168,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758409532","name":"(unnamed)","operator":"CyrusOne","stations":13,"stations_by_currency":{"current":0,"recent":0,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12436","distance_km":3.2,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":172,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a758410854","name":"Data Foundry Austin 1 Data Center","stations":13,"stations_by_currency":{"current":0,"recent":0,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12436","distance_km":4.2,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":184,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a760564308","name":"Visa Operations Center East","operator":"Visa","stations":26,"stations_by_currency":{"current":9,"recent":2,"historical":15,"undated":0},"freshest_sample":{"station":"21VASWCB-1AXLE001.62","distance_km":4.1,"characteristic":"do","sampled_on":"2026-10-05","age_days":27,"currency":"current"},"nearest_current_station":{"station":"21VASWCB-1ABRB002.15","distance_km":1.1,"days_since_last_sample":90},"stations_within_km_with_no_published_reading":258},{"id":"a765571742","name":"LightEdge Austin I","stations":13,"stations_by_currency":{"current":0,"recent":0,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12436","distance_km":4.6,"characteristic":"p","sampled_on":"2024-08-21","age_days":802,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":187,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a767091538","name":"Skybox Chicago I","operator":"Skybox","stations":9,"stations_by_currency":{"current":0,"recent":0,"historical":9,"undated":0},"freshest_sample":{"station":"USGS-420204087520701","distance_km":9.8,"characteristic":"spcond","sampled_on":"2023-03-07","age_days":1335,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":246,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a767457944","name":"Hurricane Electric Fremont 1","operator":"Hurricane Electric","stations":9,"stations_by_currency":{"current":0,"recent":0,"historical":9,"undated":0},"freshest_sample":{"station":"USGS-11172175","distance_km":7.5,"characteristic":"temp_c","sampled_on":"2022-09-15","age_days":1508,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":109,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a767593552","name":"Aligned Data Centers","operator":"Aligned","stations":23,"stations_by_currency":{"current":0,"recent":0,"historical":23,"undated":0},"freshest_sample":{"station":"LEVSN_WQX-SC_Camp| (LEBAF)","distance_km":9.9,"characteristic":"do","sampled_on":"2024-10-23","age_days":739,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":65,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a767776202","name":"Lumen Austin 1","stations":13,"stations_by_currency":{"current":0,"recent":1,"historical":12,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12185","distance_km":9.3,"characteristic":"p","sampled_on":"2026-06-29","age_days":125,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":164,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a767777828","name":"Data Foundry - Texas 1","stations":14,"stations_by_currency":{"current":0,"recent":1,"historical":13,"undated":0},"freshest_sample":{"station":"TCEQMAIN-12185","distance_km":9.4,"characteristic":"p","sampled_on":"2026-06-29","age_days":125,"currency":"recent","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":171,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a768620518","name":"XO Fremont","operator":"XO","stations":10,"stations_by_currency":{"current":0,"recent":0,"historical":10,"undated":0},"freshest_sample":{"station":"USGS-11172175","distance_km":5.9,"characteristic":"temp_c","sampled_on":"2022-09-15","age_days":1508,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":110,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a768620538","name":"Hurricane Electric Fremont 2","operator":"Hurricane Electric","stations":11,"stations_by_currency":{"current":0,"recent":0,"historical":11,"undated":0},"freshest_sample":{"station":"USGS-11172175","distance_km":5.6,"characteristic":"temp_c","sampled_on":"2022-09-15","age_days":1508,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":111,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a768792034","name":"Element Critical","stations":14,"stations_by_currency":{"current":0,"recent":0,"historical":14,"undated":0},"freshest_sample":{"station":"TCEQMAIN-16316","distance_km":5.4,"characteristic":"p","sampled_on":"2023-08-17","age_days":1172,"currency":"historical","fraction":"Total"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":130,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a769380580","name":"Element Critical CH1","operator":"Element Critical","stations":9,"stations_by_currency":{"current":0,"recent":0,"historical":9,"undated":0},"freshest_sample":{"station":"IL_EPA_WQX-G-15","distance_km":9.5,"characteristic":"do","sampled_on":"2022-10-06","age_days":1487,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":257,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a774417762","name":"165 Halsey / Equinix NY1 / Databank EWR1","operator":"Tishman","stations":57,"stations_by_currency":{"current":7,"recent":0,"historical":50,"undated":0},"freshest_sample":{"station":"IEC-NYNJCT-W10","distance_km":7.2,"characteristic":"do","sampled_on":"2026-09-01","age_days":61,"currency":"current"},"nearest_current_station":{"station":"IEC-NYNJCT-NJHDG_11","distance_km":1.6,"days_since_last_sample":66},"stations_within_km_with_no_published_reading":404},{"id":"a774757530","name":"QTS Suwanee Data Center 1","operator":"QTS","stations":7,"stations_by_currency":{"current":2,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"21GAEPD_WQX-RV_12_3841","distance_km":3.8,"characteristic":"do","sampled_on":"2026-09-16","age_days":46,"currency":"current"},"nearest_current_station":{"station":"21GAEPD_WQX-RV_12_3841","distance_km":3.8,"days_since_last_sample":46},"stations_within_km_with_no_published_reading":122},{"id":"a774758392","name":"QTS Suwanee Data Center 2","operator":"QTS","stations":7,"stations_by_currency":{"current":2,"recent":0,"historical":5,"undated":0},"freshest_sample":{"station":"21GAEPD_WQX-RV_12_3841","distance_km":4.0,"characteristic":"do","sampled_on":"2026-09-16","age_days":46,"currency":"current"},"nearest_current_station":{"station":"21GAEPD_WQX-RV_12_3841","distance_km":4.0,"days_since_last_sample":46},"stations_within_km_with_no_published_reading":117},{"id":"a776297020","name":"TierPoint Little Rock","stations":4,"stations_by_currency":{"current":0,"recent":4,"historical":0,"undated":0},"freshest_sample":{"station":"ARDEQH2O_WQX-ARK0029","distance_km":8.7,"characteristic":"temp_c","sampled_on":"2026-05-05","age_days":180,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":45,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a780575270","name":"Equinix SV6","operator":"Equinix","stations":15,"stations_by_currency":{"current":0,"recent":0,"historical":15,"undated":0},"freshest_sample":{"station":"USGS-11169025","distance_km":7.8,"characteristic":"temp_c","sampled_on":"2022-12-03","age_days":1429,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":117,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a784648480","name":"Flexential Atlanta - Norcross","operator":"Flexential","stations":9,"stations_by_currency":{"current":2,"recent":3,"historical":4,"undated":0},"freshest_sample":{"station":"21GAEPD_WQX-RV_12_3859","distance_km":6.3,"characteristic":"do","sampled_on":"2026-09-16","age_days":46,"currency":"current"},"nearest_current_station":{"station":"21GAEPD_WQX-RV_12_3859","distance_km":6.3,"days_since_last_sample":46},"stations_within_km_with_no_published_reading":117},{"id":"a792593466","name":"Centersquare Lynnwood SE1","operator":"Centersquare","stations":38,"stations_by_currency":{"current":0,"recent":0,"historical":38,"undated":0},"freshest_sample":{"station":"WDFW-snohomish_ae0079dp","distance_km":7.1,"characteristic":"temp_c","sampled_on":"2025-07-31","age_days":458,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":74,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a795828868","name":"Apple","operator":"Apple","stations":6,"stations_by_currency":{"current":0,"recent":0,"historical":6,"undated":0},"freshest_sample":{"station":"USGS-441712120503800","distance_km":2.5,"characteristic":"spcond","sampled_on":"2024-02-20","age_days":985,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":52,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a801080446","name":"Walmart Colorado Data Center","operator":"Walmart","stations":20,"stations_by_currency":{"current":0,"recent":6,"historical":14,"undated":0},"freshest_sample":{"station":"CORIVWCH_WQX-452","distance_km":5.6,"characteristic":"do","sampled_on":"2026-05-15","age_days":170,"currency":"recent"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":75,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a810069148","name":"Verizon","stations":6,"stations_by_currency":{"current":0,"recent":0,"historical":6,"undated":0},"freshest_sample":{"station":"USGS-412126095565201","distance_km":7.0,"characteristic":"spcond","sampled_on":"2022-12-15","age_days":1417,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":61,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a810069168","name":"Verizon","stations":6,"stations_by_currency":{"current":0,"recent":0,"historical":6,"undated":0},"freshest_sample":{"station":"USGS-412126095565201","distance_km":7.1,"characteristic":"spcond","sampled_on":"2022-12-15","age_days":1417,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":61,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a816024714","name":"George C. 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from the last 120 days; stations beyond 10 km were not sought."},{"id":"a820816148","name":"Microsoft","operator":"Microsoft","stations":3,"stations_by_currency":{"current":0,"recent":0,"historical":3,"undated":0},"freshest_sample":{"station":"1119USBR_WQX-CBP083","distance_km":2.6,"characteristic":"do","sampled_on":"2022-09-28","age_days":1495,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":10,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not 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120 days; stations beyond 10 km were not sought."},{"id":"a831373792","name":"Scott Data Center","stations":4,"stations_by_currency":{"current":0,"recent":0,"historical":4,"undated":0},"freshest_sample":{"station":"USGS-06610000","distance_km":8.0,"characteristic":"spcond","sampled_on":"2024-03-05","age_days":971,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":56,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not sought."},{"id":"a835365560","name":"KOMO Plaza East","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":1182,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"a835365562","name":"KOMO Plaza West","stations":0,"stations_by_currency":{"current":0,"recent":0,"historical":0,"undated":0},"freshest_sample":null,"nearest_current_station":null,"stations_within_km_with_no_published_reading":1191,"no_current_station_within_km":"No monitoring station publishing a reading in this file lies within 10 km of this facility, so no sample of any age is reported near it; stations beyond 10 km were not sought."},{"id":"a842547244","name":"Fidelity","operator":"Fidelity","stations":17,"stations_by_currency":{"current":0,"recent":0,"historical":17,"undated":0},"freshest_sample":{"station":"21NEB001_WQX-LEL3WILWCK01","distance_km":2.7,"characteristic":"do","sampled_on":"2024-09-05","age_days":787,"currency":"historical"},"nearest_current_station":null,"stations_within_km_with_no_published_reading":74,"no_current_station_within_km":"No station within 10 km of this facility has a sample from the last 120 days; stations beyond 10 km were not 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