Sewage system
This API provides access to subject P1601 of Poland's Local Data Bank (Bank Danych Lokalnych, BDL), covering the housing economy and municipal infrastructure category, specifically network devices related to the sewage system. It offers yearly territorial statistical series from the national down to the gmina (municipality) level, with administrative units identified by TERYT codes. The data is published and maintained by GUS, the Polish national statistical office, and is freely accessible without authentication, supporting analysis of sewage infrastructure development across Polish territorial units over time.”HOUSING ECONOMY AND MUNICIPAL INFRASTRUCTURE › NETWORK DEVICES. Local Data Bank (BDL) subject P1601: yearly territorial series for Poland (voivodship to gmina level), units keyed by TERYT ids.
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Data schema (8 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| variable_idVariable id | string | GUS variable code identifying the specific measured sewage-system indicator.GUS variable id selecting the measured series of subject P1601 (the n1/n2 dimension combination): 494=length of active sewage network [km]; 8898=length of working sewage network administrated by the gmina [km]; 8899=length of active sewage network administrated by the gmina, including network operated by public utility entities [km]; 495=connections leading to residential buildings and collective accomodation facilities [pcs]; 475706=sewage network breakdowns [pcs]; 475707=domestic wastewater discharged by sewage network [dam3]; 475708=untreated wastewater [dam3]; 498=dwellings in residential buildings newly connected to sewerage system [-]; 497=wastewater treated discharged [dam3]; 496=population using the sewage system in urban areas [person]; 9153=population using the sewage system [person]; 1641700=population using the sewage network in the countryside [person]; 1725251=number of sewage system failures per 1 km of sewage system [pcs]. |
| unit_levelUnit level | integer | Territorial aggregation level, from country (0) down to gmina (6).Territorial aggregation level: 0=Poland, 1=macroregion, 2=voivodship (województwo), 3=region, 4=subregion, 5=powiat, 6=gmina. |
| year | integer | Reference year for the yearly data value.Reference year of the value (yearly series, back to 1995 for the oldest subjects). Filters server-side via the API's year parameter. |
| unit_idUnit id | string | 12-digit BDL identifier of the territorial unit.12-digit BDL territorial-unit id (macroregion+voivodship+region+subregion+powiat+gmina+type digits). An equality filter pins the unit server-side (unit-parent-id). |
| unit_nameUnit name | string | Name of the territorial unit, e.g. town or gmina.Name of the territorial unit, e.g. town or gmina. |
| teryt_tercTeryt terc | string | TERYT TERC code of the territorial unit derived from unit_id.TERYT TERC territorial code derived from the unit id (2 digits = voivodship, 4 = powiat, 7 = gmina incl. type digit; empty for NUTS-only units). |
| value | number | Numeric value of the selected sewage-system indicator.Numeric value of the selected sewage-system indicator. |
| attr_idAttr id | integer | GUS attribute code flagging data quality or notes for the value.GUS value-attribute id (data quality/annotation flag). |
Schema captured from bdl 4 days ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (8 records)
| variable_id | unit_level | year | unit_id | unit_name | teryt_terc | value | attr_id |
|---|---|---|---|---|---|---|---|
| 494 | 6 | 1995 | 011212001011 | Bochnia | 1201011 | 48 | 1 |
| 494 | 6 | 1996 | 011212001011 | Bochnia | 1201011 | 48 | 1 |
| 494 | 6 | 1997 | 011212001011 | Bochnia | 1201011 | 48.1 | 1 |
| 494 | 6 | 1998 | 011212001011 | Bochnia | 1201011 | 48.3 | 1 |
| 494 | 6 | 1999 | 011212001011 | Bochnia | 1201011 | 55.9 | 1 |
| 494 | 6 | 2000 | 011212001011 | Bochnia | 1201011 | 55.9 | 1 |
| 494 | 6 | 2001 | 011212001011 | Bochnia | 1201011 | 58.6 | 1 |
| 494 | 6 | 2002 | 011212001011 | Bochnia | 1201011 | 65.9 | 1 |
Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Configuration
- Base URL
- https://bdl.stat.gov.pl/api/v1/subjects/P1601
License
- ✓ Redistributable
- ✓ Attribution required
Query examples
curl -s 'https://bdl.stat.gov.pl/api/v1/data/by-variable/494?unit-level=6&page-size=10&format=json&lang=en'Yearly values of variable 494 (length of active sewage network [km]) per territorial unit. Filters: unit-level=0–6, year=YYYY, unit-parent-id={12-digit unit id}; page-size ≤ 100. Anonymous limits: 5 req/s, 100 req/15 min.
Machine-readable & source
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