Water hardness in Ribeira do Amparo
163 mg/L hard
Tap water in Ribeira do Amparo is hard: 163 mg/L (9.5 gpg · 9.1 °dH · 16.3 °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
Ribeira do Amparo, in Bahia, is served by Empresa Baiana De Aguas E Saneamento Sa. Reported hardness is 163.0 milligrams per litre, which counts as hard. The figure is from the 2024 Ministry of Health SISAGUA data, and no range is published. Scale on kettles and heaters is a likely consequence.
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 | 163 mg/L |
|---|---|
| Utility | Empresa Baiana De Aguas E Saneamento Sa |
How Ribeira do Amparo compares
- Tap water in Ribeira do Amparo is 284 % harder than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 52 of 1915 in Brazil (1 = hardest); 97 % of these cities have softer water.
- In Bahia it is number 10 of 148 cities; the regional median is 66 mg/L.
- Nearest city with clearly softer water: Cipó, 18 km away (73 mg/L).
- Nearest city with clearly harder water: Salgado, 101 km away (219 mg/L).
Ranking of the hardest and softest water in Brazil →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Ribeira do Amparo
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| LG | H2 |
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 Ribeira do Amparo water hard or soft?
It is hard: 163 mg/L as CaCO₃ (9.5 gpg, 9.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Ribeira do Amparo 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 Ribeira do Amparo water?
9.5 gpg, equal to 9.1 °dH, 16.3 °fH or 163 mg/L calcium carbonate.
What dishwasher salt setting should I use in Ribeira do Amparo?
For 163 mg/L (9.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Ribeira do Amparo?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
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