Water hardness in Antônio Cardoso
77 mg/L moderately hard
Tap water in Antônio Cardoso is moderately hard: 77 mg/L (4.5 gpg · 4.3 °dH · 7.7 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Empresa Baiana De Aguas E Saneamento Sa), CC BY-ND 3.0 (2024) · data checked 2026-10-20
Range across supply zones: 74–94 mg/L.
Empresa Baiana De Aguas E Saneamento Sa supplies Antônio Cardoso in Bahia. The 2024 data report 77.4 milligrams per litre as calcium carbonate, which is moderate. Readings ranged from 73.8 to 94.4 milligrams per litre.
Portaria GM/MS nº 888/2021 sets a maximum of 300 mg/L CaCO₃ for total hardness (dureza total); operators report it in mg/L to SISAGUA.
Water data
| Total hardness | 77 mg/L |
|---|---|
| Utility | Empresa Baiana De Aguas E Saneamento Sa |
How Antônio Cardoso compares
- Tap water in Antônio Cardoso is 82 % harder than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 390 of 1915 in Brazil (1 = hardest); 80 % of these cities have softer water.
- In Bahia it is number 57 of 148 cities; the regional median is 66 mg/L.
- Nearest city with clearly softer water: Rafael Jambeiro, 39 km away (38 mg/L).
- Nearest city with clearly harder water: Riachão do Jacuípe, 65 km away (100 mg/L).
Ranking of the hardest and softest water in Brazil →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Antônio Cardoso
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 4 °dH |
| AEG / Electrolux | 2 |
| Beko | 1st |
| Hoover | S1 |
| LG | H1 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Antônio Cardoso water hard or soft?
It is moderately hard: 77 mg/L as CaCO₃ (4.5 gpg, 4.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Antônio Cardoso safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Portaria GM/MS nº 888/2021 sets a maximum of 300 mg/L CaCO₃ for total hardness (dureza total); operators report it in mg/L to SISAGUA.
How many grains per gallon is Antônio Cardoso water?
4.5 gpg, equal to 4.3 °dH, 7.7 °fH or 77 mg/L calcium carbonate.
What dishwasher salt setting should I use in Antônio Cardoso?
For 77 mg/L (4.3 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Antônio Cardoso?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Empresa Baiana De Aguas E Saneamento Sa), CC BY-ND 3.0 (2024). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Empresa Baiana De Aguas E Saneamento Sa), CC BY-ND 3.0 · Outdated figure? Tell us