World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in Switzerland

705 inventory records · European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública)

Data years: 2022. The inventory date does not establish current operation.

705 results

Name	Native size	Year
ALLAMANCH_WWTP_585100	625 population equivalent (p.e.)	2022
HIMMELRIED/WEST(SCHINDELBODEN)CH_WWTP_261802	600 population equivalent (p.e.)	2022
CastanedaCH_WWTP_380501	600 population equivalent (p.e.)	2022
Obersaxen Mundaun (Flond)CH_WWTP_398802	600 population equivalent (p.e.)	2022
ARA ARBOLDSWILCH_WWTP_288100	600 population equivalent (p.e.)	2022
ARA LAMPENBERGCH_WWTP_288700	600 population equivalent (p.e.)	2022
BeggingenCH_WWTP_295100	600 population equivalent (p.e.)	2022
ORNYCH_WWTP_549300	600 population equivalent (p.e.)	2022
ROUGEMONT-FLENDRUZCH_WWTP_584302	600 population equivalent (p.e.)	2022
EmbdCH_WWTP_628300	600 population equivalent (p.e.)	2022
Rheinwald (Nufenen)CH_WWTP_371403	593 population equivalent (p.e.)	2022
STEP FAHYCH_WWTP_678900	567 population equivalent (p.e.)	2022
STEP MONTIGNEZCH_WWTP_679600	567 population equivalent (p.e.)	2022
IndenCH_WWTP_610900	563 population equivalent (p.e.)	2022
VILLARS-TIERCELINCH_WWTP_553800	562 population equivalent (p.e.)	2022
PROVENCECH_WWTP_556600	562 population equivalent (p.e.)	2022
DONNELOYECH_WWTP_591300	537 population equivalent (p.e.)	2022
Disentis/Mustér (Disla)CH_WWTP_398201	500 population equivalent (p.e.)	2022
Prato LeventinaCH_WWTP_507801	500 population equivalent (p.e.)	2022
ORMONT-DESSOUS LA FORCLAZCH_WWTP_541002	500 population equivalent (p.e.)	2022
AGIEZCH_WWTP_574200	500 population equivalent (p.e.)	2022
CRONAYCH_WWTP_591000	500 population equivalent (p.e.)	2022
Simplon-PassCH_WWTP_600902	500 population equivalent (p.e.)	2022
FerdenCH_WWTP_619500	500 population equivalent (p.e.)	2022
SCHANGNAU-BUMBACHCH_WWTP_090600	500 population equivalent (p.e.)	2022
ERIZ/INNERERIZCH_WWTP_092401	500 population equivalent (p.e.)	2022
ERIZ-LINDENCH_WWTP_092402	500 population equivalent (p.e.)	2022
ARA HAEFELFINGENCH_WWTP_284700	490 population equivalent (p.e.)	2022
PRAHINSCH_WWTP_592700	463 population equivalent (p.e.)	2022
CORSEREYCH_WWTP_218500	462 population equivalent (p.e.)	2022
Simplon-DorfCH_WWTP_600901	450 population equivalent (p.e.)	2022
SCHLATT-WALTENSTEINCH_WWTP_022601	450 population equivalent (p.e.)	2022
SCHLATT-UNTERSCHLATTCH_WWTP_022602	450 population equivalent (p.e.)	2022
BinnCH_WWTP_605400	450 population equivalent (p.e.)	2022
ARA RUENENBERG NORDCH_WWTP_286001	440 population equivalent (p.e.)	2022
Medeglia (Monteceneri)CH_WWTP_523800	440 population equivalent (p.e.)	2022
Arosa (Lüen)CH_WWTP_392104	437 population equivalent (p.e.)	2022
SAUBRAZCH_WWTP_543700	437 population equivalent (p.e.)	2022
VUGELLES-LA-MOTHECH_WWTP_593700	437 population equivalent (p.e.)	2022
Zernez (Brail)CH_WWTP_374602	420 population equivalent (p.e.)	2022
FORNET-DESSOUSCH_WWTP_068402	420 population equivalent (p.e.)	2022
FEYCH_WWTP_552200	416 population equivalent (p.e.)	2022
SAFIENTAL (TENNA)CH_WWTP_367200.06	413 population equivalent (p.e.)	2022
Scuol (Sur En)CH_WWTP_376206	413 population equivalent (p.e.)	2022
Calanca (Arvigo)CH_WWTP_383701	400 population equivalent (p.e.)	2022
ARA TITTERTENCH_WWTP_289400	400 population equivalent (p.e.)	2022
Bourg St-PierreCH_WWTP_603202	400 population equivalent (p.e.)	2022
EistenCH_WWTP_628200	400 population equivalent (p.e.)	2022
DIZYCH_WWTP_548100	393 population equivalent (p.e.)	2022
STEP LA ROCHECH_WWTP_671400	383 population equivalent (p.e.)	2022
MergosciaCH_WWTP_511700	380 population equivalent (p.e.)	2022
BLEIKENCH_WWTP_060400	380 population equivalent (p.e.)	2022
GAENSBRUNNENCH_WWTP_242300	375 population equivalent (p.e.)	2022
BIBERNCH_WWTP_244400	375 population equivalent (p.e.)	2022
Scuol (S-charl)CH_WWTP_376202	375 population equivalent (p.e.)	2022
RossaCH_WWTP_380801	375 population equivalent (p.e.)	2022
CHABREYCH_WWTP_545300	375 population equivalent (p.e.)	2022
CHEVILLYCH_WWTP_547600	375 population equivalent (p.e.)	2022
FOREL CHERCOTTAZCH_WWTP_560401	375 population equivalent (p.e.)	2022
OGENSCH_WWTP_568000	375 population equivalent (p.e.)	2022
VUITEBOEUFCH_WWTP_576601	375 population equivalent (p.e.)	2022
VUITEBOEUF-PENEYCH_WWTP_576602	375 population equivalent (p.e.)	2022
CHAVANNES-LE-CHENECH_WWTP_590700	375 population equivalent (p.e.)	2022
TrientCH_WWTP_614200	375 population equivalent (p.e.)	2022
Kläranlage MenzbergCH_WWTP_113600	375 population equivalent (p.e.)	2022
SufersCH_WWTP_369501	360 population equivalent (p.e.)	2022
Col Gd St-BernardCH_WWTP_603200	355 population equivalent (p.e.)	2022
ARA HEMMIKENCH_WWTP_284800	350 population equivalent (p.e.)	2022
Hérémence-MâcheCH_WWTP_608402	350 population equivalent (p.e.)	2022
STEP SAULCYCH_WWTP_672200	350 population equivalent (p.e.)	2022
Ilanz/Glion (Pitasch)CH_WWTP_361905	337 population equivalent (p.e.)	2022
BARGENCH_WWTP_293100	330 population equivalent (p.e.)	2022
SAANEN-ABLAENDSCHENCH_WWTP_084301	330 population equivalent (p.e.)	2022
Thusis (Mutten)CH_WWTP_366801	325 population equivalent (p.e.)	2022
ORGESCH_WWTP_592400	325 population equivalent (p.e.)	2022
ARA HERSBERGCH_WWTP_282700	320 population equivalent (p.e.)	2022
KLARANLAGE EDERSWILERCH_WWTP_671300	317 population equivalent (p.e.)	2022
STEP ST-BRAISCH_WWTP_675800	317 population equivalent (p.e.)	2022
ARA RUENENBERG SUEDCH_WWTP_286002	313 population equivalent (p.e.)	2022
CUARNYCH_WWTP_591100	312 population equivalent (p.e.)	2022
OPPENSCH_WWTP_592300	312 population equivalent (p.e.)	2022
STEP BEURNEVESINCH_WWTP_677300	312 population equivalent (p.e.)	2022
ARA BURGCH_WWTP_278300	300 population equivalent (p.e.)	2022
ARA ROGGENBURGCH_WWTP_279000	300 population equivalent (p.e.)	2022
L'ETIVAZCH_WWTP_584103	300 population equivalent (p.e.)	2022
ORZENSCH_WWTP_592500	300 population equivalent (p.e.)	2022
SORNETAN-SOUBOZCH_WWTP_071001	300 population equivalent (p.e.)	2022
MUTRUXCH_WWTP_556300	287 population equivalent (p.e.)	2022
BIOLEY-MAGNOUXCH_WWTP_590300	287 population equivalent (p.e.)	2022
STEP LA SCIECH_WWTP_670300	283 population equivalent (p.e.)	2022
HERMENCHESCH_WWTP_567300	266 population equivalent (p.e.)	2022
Avers (Loretsch Hus)CH_WWTP_368102	250 population equivalent (p.e.)	2022
Rheinwald (Medels i.Rh.)CH_WWTP_371402	250 population equivalent (p.e.)	2022
Surses (Sur)CH_WWTP_354305	250 population equivalent (p.e.)	2022
DENEZYCH_WWTP_567000	250 population equivalent (p.e.)	2022
LA FERRIERECH_WWTP_043500	250 population equivalent (p.e.)	2022
STEP LES POMMERATSCH_WWTP_675701	250 population equivalent (p.e.)	2022
STEP SOUBEYCH_WWTP_675900	250 population equivalent (p.e.)	2022
RUEGGISBERG/HINTERF.CH_WWTP_088000	238 population equivalent (p.e.)	2022
Avers (Cresta)CH_WWTP_368101	228 population equivalent (p.e.)	2022

Regulatory context

Verification pending. This is not an exhaustive review of applicable law.

Switzerland: water protection and cantonal authorization

Human legal review pending. FOEN identifies the federal Swiss water-protection framework and describes micropollutant equipment for selected WWTPs. Zurich illustrates a cantonal regime distinguishing cantonal-authority cases from municipal cases; it is not a uniform national administrative rule. Those pages do not establish the current Fedlex consolidation or an individual authorization, and the Advanced label does not determine programme inclusion.

Identify canton, authorization, wastewater type and applicable OEaux version.
The inventory label Advanced does not determine applicability of the micropollutant framework.
Check the canton and applicable Fedlex version; the Zurich example is not extended across Switzerland and does not equate sewer discharge with discharge to waters.

FOEN · Water: Acts and ordinancesReference portal · CH; catálogo federal de bases jurídicas
FOEN · tratamiento de aguas residuales comunalesOfficial guidance · CH; contexto general, no criterio por instalación
Fedlex · portal de OEaux/WPO814.201Reference portal · CH; consolidación vigente pendiente
Cantón de Zúrich · autorizaciones de aguas residualesOfficial guidance · Ejemplo cantonal; referencias GSchG 814.20 y GSchV/OEaux 814.201, sin consolidación federal acreditada

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.