Water hardness in Santana do Cariri
62 mg/L moderately hard
Tap water in Santana do Cariri is moderately hard: 62 mg/L (3.6 gpg · 3.5 °dH · 6.2 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia De Agua E Esgoto Do Ceara), CC BY-ND 3.0 (2026) · data checked 2026-10-20
Range across supply zones: 6–336 mg/L.
Santana do Cariri, in Ceará, is supplied by Companhia De Agua E Esgoto Do Ceara. Reported hardness is 61.9 milligrams per litre as calcium carbonate, which is moderate, but readings vary very widely, from 6.0 to 335.9. The data is from the Ministry of Health's 2026 reporting, so the figure at your own tap may be far from the typical value.
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 | 62 mg/L |
|---|---|
| Utility | Companhia De Agua E Esgoto Do Ceara |
How Santana do Cariri compares
- Tap water in Santana do Cariri is 46 % harder than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 585 of 1915 in Brazil (1 = hardest); 69 % of these cities have softer water.
- In Ceará it is number 43 of 47 cities; the regional median is 115 mg/L.
- Nearest city with clearly softer water: Várzea Alegre, 69 km away (47 mg/L).
- Nearest city with clearly harder water: Nova Olinda, 16 km away (230 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 Santana do Cariri
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 3 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Santana do Cariri water hard or soft?
It is moderately hard: 62 mg/L as CaCO₃ (3.6 gpg, 3.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Santana do Cariri 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 Santana do Cariri water?
3.6 gpg, equal to 3.5 °dH, 6.2 °fH or 62 mg/L calcium carbonate.
What dishwasher salt setting should I use in Santana do Cariri?
For 62 mg/L (3.5 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Santana do Cariri?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia De Agua E Esgoto Do Ceara), CC BY-ND 3.0 (2026). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Companhia De Agua E Esgoto Do Ceara), CC BY-ND 3.0 · Outdated figure? Tell us