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Sad news: Last update run was on March 30th, 2025. Some people were not nice to the waymarking.com website, and so it is no longer possible to access some of the pages without logging in. The category pages are part of these. Creating a workaround for that may take some time - even more, because I'm currently busy with other more urgent thingies. Hopefully I'll find time in May to fix that. See also the according thread in the forum.

Yours, Erik.

 Wastewater Treatment Facilities

See category Wastewater Treatment Facilities on Waymarking.com .
Last import of category containing 225 waymarks in 20 different countries with 88 regions was on 2025-03-16.

Land / Region#PostedTitle of first posted waymarkCodeOwnerApproval
Australia / New South Wales3Old Bar WWTP, Wallabi Point, NSW, Au ...WMTXN8Grahame Cookie2017-01-19
Austria / Tirol3Klärwerk Telfs, Tirol, AustriaWMCZECluzzi-reloaded2011-11-09
Belgium / Brabant wallon1Station d'épuration de Villers- ...WMZXRZPaulLassiter2019-01-21
Belgium / Oost-Vlaanderen2Wastewater treament zwalm,Oost-vlaan ...WM780Xlopac442009-09-18
Belgium / West-Vlaanderen1Aquafin Oostende,West-vlanderen ,Bel ...WM7BFPlopac442009-10-07
Brazil / São Paulo1Estacao de Tratamento de Esgotos ABC ...WM2T03saopaulo12008-01-23
Canada / Alberta4Fish Creek Wastewater Treatment Plan ...WM4WKRgraylling2008-10-07
Canada / British Columbia2Christina Lake Solar Aquatic System ...WMQ4CBT0SHEA2015-12-17
Canada / Manitoba1North End Water Pollution Control Ce ...WM3DK9PeterNoG2008-03-24
Canada / Ontario4Water Pollution Control Centre - Bar ...WM39WGmonkeys4ever2008-03-02
Canada / Québec5Station d'épuration de Fabrevil ...WMDK1Ftatie2012-01-25
Czechia / Hlavní město Praha1Prague Central Wastewater Treatment ...WMKFPTDorcadion Team2014-04-10
Czechia / Jihomoravský kraj4COV Moravany - Moravany, Czech Repub ...WMEGKBpuczmeloun2012-06-03
Czechia / Moravskoslezský kraj2Wastewater Treatment Facility - Kopr ...WMMEB5ToRo612014-09-13
Denmark / Region Sjælland1Korsør Rensningsanlæg - Korsør, D ...WM129Y2Walking Boots2020-04-09
Finland / Varsinais-Suomi1Kakolanmäki wastewater treatment pl ...WM1B39Qzeepia2024-11-26
France / Centre-Val-de-Loire4Station de traitement de l'eau à ...WMMVA1Dragon Ball2014-11-25
France / Hauts-de-France2La station d’épuration - Bouv ...WMXC7Tpmaupin2017-12-25
France / Nouvelle-Aquitaine3usine traitement eaux - Granzay-Grip ...WMKN3Csara et gege2014-05-05
France / Pays de la Loire2Usine de traitement des eaux - Neuvi ...WMZ8YYAlfouine2018-10-02
France / Provence-Alpes-Côte d'Azur4Station d'épuration d'Artig ...WMXQEKYvesProvence2018-02-13
Germany / Baden-Württemberg5Kläranlage Bondorf-Hailfingen - Hai ...WMH5NQTante.Hossi2013-05-29
Germany / Hamburg1Klärwerk - Hamburg, GermanyWM16W8GKladings2023-01-02
Germany / Hessen3KA Immenhausen-Holzhausen, HE, Germa ...WMPVJRAndré de Montbard2015-10-26
Germany / Nordrhein-Westfalen4Kläranlage Beuel - Bonn, NRW, Germa ...WMT79AMaisi22016-10-07
Germany / Rheinland-Pfalz3Zweckverband Zentralkläranlage Mend ...WMRJDFkaschper692016-06-28
Germany / Sachsen-Anhalt1Die Abwasserkläranlage - Dessau, Sa ...WMM4QVkishin2014-08-19
Germany / Schleswig-Holstein1Kläranlage Hattstedt, GEWMA9P9Grizzly-NF2010-12-22
Isle of Man1Balladoole Waste Water Treatment Wor ...WMY008Mike_bjm2018-03-25
Luxembourg1Klärwerk Beaufort - Canton Echterna ...WM1AD5QColleIsarco2025-01-14
Netherlands / Friesland1riool water zuivering - Joure, NLWM15V8BPetjeOp2022-03-13
Netherlands / Gelderland1Rioolwaterzuivering - Ede, Gelderlan ...WM16MJXHeva2022-08-30
Netherlands / Noord-Brabant1RWZI Waalwijk - Waalwijk, NLWM151F8T-Team!2021-09-27
Netherlands / Overijssel1RWZI - Deventer, NLWMNW0Vh35per052015-05-11
Netherlands / Utrecht2RWZI Woerden - Woerden - NLWM15X89Andre 612022-03-25
Netherlands / Zuid-Holland1Wastewater Treatment Facility Alphen ...WMF6CDAxel-F2012-09-02
New Zealand / North Island1Rosedale Waste Water Treatment Plant ...WM4QYCPunga and Paua2008-09-25
Poland / Mazowieckie1Oczyszczalnia scieków Czajka - Wars ...WM1B171okrutnyb2024-11-14
Portugal / Faro1ETAR de Almargem - Cabanas de Tavira ...WMDKPQTorgut2012-01-29
Portugal / Leiria2Etar Caldas da Rainha-PortugalWMAAP3h_raky2010-12-22
Portugal / Lisboa2Etar de Porto Dinheiro, Lourinhã, P ...WMC1RXmanchanegra2011-08-31
Portugal / Setúbal2ETAR do Valdeão - Pragal, PortugalWM43T5SUp3rFM & Cruella2008-07-04
Spain / Andalucía1EMACSA Medina Azahara - Córdoba, An ...WM18CCBAriberna2023-07-08
Spain / Castilla-La Mancha1EDAR Albacete, Castilla-La Mancha (S ...WM15FQXWizard_Speed_Time2021-12-29
Spain / Comunidad de Madrid1EDAR Picadas - San Martín de Valdei ...WM18212xeocach2023-05-15
Spain / Galicia10EDAR reza - Ourense, Galicia, Españ ...WM1316JAriberna2020-08-24
Spain / Islas Canarias1Estación Depuradora de Aguas Residu ...WM10072Windschattenwanderer2019-02-01
Spain / Principado de Asturias1Bombeo - Cudillero, Asturias, Españ ...WM154KWAriberna2021-10-15
Switzerland / Aargau9ARA Rheinfelden-Magden - Rheinfelden ...WMEXWMfi672012-07-23
Switzerland / Basel Landschaft18ARA Birsig - Therwil, BL, Switzerlan ...WM7EZQfi672009-10-20
Switzerland / Fribourg1ARA Region Murten - Muntelier, FR, ...WMZD6Qfi672018-10-23
Switzerland / Graubünden1ARA - Bergün, GR, SwitzerlandWMB344fi672011-04-03
Switzerland / Solothurn3ARA - Rodersdorf, SO, SwitzerlandWMQNV7fi672016-03-09
Switzerland / Valais1ARA Briglina - Gamsen, VS, Switzerla ...WMP4K4fi672015-06-30
Switzerland / Vaud1Usine de traitement des eaux usées ...WMYVFRfi672018-07-28
Switzerland / Zürich1ARA Limeco - Dietikon, ZH, Switzerla ...WMX3A6fi672017-11-21
United Kingdom / East Midlands1Pitsford Water Treatment Works - Pit ...WM8HJKDragontree2010-04-08
United Kingdom / London1Mogden Sewage Treatment Works, Islew ...WMBBE8AngelPick2011-05-01
United Kingdom / West Midlands1Pershore Waste Water Plant - Pershor ...WM95R7Deadjesters2010-07-17
United States / Arizona3Chandler-Ocotillo Water Reclamation ...WMM7KDjennyanykind2014-08-05
United States / California20Pismo Beach Wastewater Treatment Pla ...WM2QQ1teeoff22007-12-09
United States / Colorado3Metro Wastewater Reclamation Distric ...WM2VEROutspoken12007-12-28
United States / Florida4City of Atlantic Beach Waste Water T ...WM2TF1Marine Biologist2007-12-28
United States / Georgia1Wastewater Treatment Facility - Athe ...WM6V23ChapterhouseInc2009-07-22
United States / Indiana2Westside Wastewater Treatment Plant ...WMB053thegorilla232011-03-27
United States / Kansas1Municipal Waterworks -- Salina KSWMGZ3WBenchmark Blasterz2013-04-30
United States / Kentucky1Morehead Utility Plant Board WWTP - ...WMCAWVSimplenfun2011-08-20
United States / Maine1Belfast Wastewater Treatment Facilit ...WMQ1JBNorStar2015-11-29
United States / Maryland2Eastern Avenue Sewage Pumping Statio ...WMZQGVbluesnote2018-12-25
United States / Massachusetts1The Deer Island Sewage Treatment Pla ...WMF6EQNorStar2012-09-02
United States / Michigan3Ann Arbor Waste Water Treatment Plan ...WM2QRYGT.US2007-12-09
United States / Minnesota2Rochester Water Reclamation Plant - ...WMA6WJSiren Hunter2013-07-07
United States / Missouri4Cassville Wastewater Treatment Facil ...WM2X8QGEO*Trailblazer 12008-01-07
United States / Nebraska1Watewater Treatment Facility - York, ...WM93NZ68467lib2010-06-28
United States / New Hampshire1Nashua Wastewater Treatment Facility ...WM4N2MMountain_Wanderer2008-09-11
United States / New York4Town of Tonawanda Waste Water Facili ...WM2W6QRayman2008-01-11
United States / North Carolina1Moore County Pollution Control PlantWMQ8B0NCDaywalker2016-02-27
United States / Ohio1Fairfield Wastewater Treatment Facil ...WM911VWeb-ling2010-06-15
United States / Oklahoma3Lake Hefner Water Treatment Plant - ...WMZPVNThe Snowdog2018-12-17
United States / Oregon4River Road Park Wet Weather Treatmen ...WM5RR4shadow1012009-02-08
United States / Pennsylvania4Meadowbrook Road Treatment Plant - M ...WM6WWBGo Boilers!2009-09-09
United States / Rhode Island1Woonsocket Regional Wastewater Plant ...WM1640K401Photos2022-05-01
United States / South Carolina1WCRSA PELHAM Wastewater Treatment Pl ...WM573DHawaiian Ninja2008-11-23
United States / Tennessee1Eastman Chemical Co. wastewater faci ...WM4RNZvhasler2008-09-25
United States / Texas5McAllen Public Utilities South Treat ...WM3NCKJimmyEv2008-04-24
United States / Utah4South Davis County Sewer Improvement ...WMB8PDLord Mot2011-04-21
United States / Virginia2Aquia Regional Treatment Facility - ...WMB88Ngarmin_geek2011-04-21
United States / Washington1Lakota Wastewater Treatment Plant - ...WM2W6ZHikenutty2007-12-30
United States / West Virginia1Point Pleasant Wastewater treatment ...WM18Q9Hbobfrapples82023-09-11
United States / Wisconsin2Wisconsin Rapids Wastewater Treatmen ...WM3QWYonfire4jesus2008-05-08