Is Orland Park, IL Tap Water Safe to Drink?
Yes, Orland Park tap water is safe to drink. No contaminants exceed health guidelines. However, Orland Park has very hard water at 320 PPM, which will cause scale buildup in plumbing and appliances over time. A water softener is worth considering.
Hardness Scale: Where Orland Park Falls
0Slightly
60Moderate
120Hard
180Very Hard
250Extreme
400+
How Orland Park Compares
Orland Park's water is 132% harder than the national average of 138 PPM. It ranks #12 out of 1000 cities in our database (harder than 99% of US cities we track). Within Illinois, it ranks #6 of 31 cities (26% above the state average of 253 PPM). Among cities (50k-100k), Orland Park ranks #3 of 258 for hardness. At this hardness level, water heaters run an estimated 59% less efficiently due to scale insulation, and major water-using appliances typically last 4 years less than the national average lifespan.
What Orland Park's Water Means for Your Home
Hardness: 320 PPM - Treatment Recommended
Orland Park has some exceptionally hard water. At 320 PPM (18.7 grains per gallon), your tap is loaded with mineral content carried in from the watershed geology. Here's the thing: it's perfectly safe to drink. The minerals won't hurt you. But they will hurt your wallet. That adds up. Hard water at 320 PPM increases household costs through scale-coated water heaters that use more energy, extra soap and detergent, and appliances that wear out faster. Most Orland Park homeowners don't realize it until the plumber shows up. That's 26% harder than the Illinois average.
Contaminants & Safety
Disinfection byproducts are the notable finding here. Orland Park's water has TTHMs at 42.2 ppb and HAA5 at 18.5 ppb — both within legal limits, but the EWG health guidelines are far stricter. These byproducts form when chlorine reacts with organic matter during treatment. A whole-house activated carbon filter reduces both chlorine and its byproducts. Want the full picture? Request your utility's annual Consumer Confidence Report.
What's in the Treatment Process
Orland Park's surface water supply requires heavy chlorination to stay safe — but that creates a tradeoff. The treatment process generates disinfection byproducts: TTHMs at 42.2 ppb (53% of the legal limit, but 281x the EWG guideline) and HAA5 at 18.5 ppb (31% of the legal limit, but 185x the EWG guideline). These are within legal limits, but the EWG sets much tighter thresholds based on cancer-risk research. A whole-house activated carbon filter reduces both chlorine and byproducts.
Chromium-6 was detected at 0.201 ppb, which is 10x the EWG health guideline. There's no separate federal limit for chromium-6, only total chromium. A reverse osmosis system is the most effective removal method. All measurements are within federal legal limits. The EWG guidelines represent a more conservative, health-based standard.
How Hard Water Affects Your Home
At 320 PPM, untreated hard water has measurable effects on household costs and appliance life:
- Water heater inefficiency: Scale insulation forces the heater to work harder (DOE estimates up to 22% more energy for heavily scaled units)
- Soap and detergent: Hard water reduces lathering, requiring significantly more product
- Appliance replacement: Water heaters, dishwashers, and washing machines fail 2-4 years earlier due to scale buildup
- Plumbing maintenance: Scale buildup in pipes reduces flow and requires more frequent service
Note: Impact varies by household size, water usage, and local energy costs. A home water test provides the most accurate assessment for your specific situation.
| Contaminant | Detected | Health Guideline | Legal Limit | Status |
|---|---|---|---|---|
| Hardness (as CaCO₃) | 320 PPM | < 60 PPM | No federal limit | ⚠ Very Hard |
| Total Dissolved Solids | 490 PPM | < 300 PPM | 500 PPM | ⚠ Elevated |
| PFAS (total) | 0 ppt | — | No total limit | ✓ ND |
| ↳ PFOA | 0 ppt | 0 ppt | 4 ppt (2024) | ✓ OK |
| ↳ PFOS | 0 ppt | 0 ppt | 4 ppt (2024) | ✓ OK |
| Lead | 1.1 ppb | 0 ppb (no safe level) | 15 ppb (10 ppb in 2027) | ✓ Low |
| Chlorine / Chloramine | 1.4 mg/L | Taste threshold ~1.0 | 4.0 mg/L | ✓ Normal |
| Nitrate | Not reported | 5 mg/L | 10 mg/L | N/A |
Our Top Picks for Orland Park (320 PPM)
Hard water at 320 PPM causes scale buildup, increased energy use, and premature appliance failure. A softener protects your plumbing and appliances.
Quick Fix for Chlorine: Shower Filter
At 1.4 mg/L chlorine, many Orland Park residents notice dry skin, brittle hair, and that "pool smell" in the shower. A shower filter installs in 5 minutes, no tools needed.
How to Test Your Water in Orland Park
With 320 PPM hardness, a quick test strip confirms whether your specific tap matches Orland Park's average before you invest in a softener. Hardness can vary within the same system.
Free option: Request Village of Orland Park Water's annual Consumer Confidence Report for official city-level data.
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About Orland Park's Water Supply
Water Utility: Village of Orland Park Water
Water Source: Lake Michigan blend (Surface Water)
Population Served: 58,862
Hardness: 320 PPM (18.7 grains per gallon)
Orland Park's drinking water comes from surface sources — Lake Michigan blend. Surface water requires more extensive treatment than groundwater, including coagulation, filtration, and disinfection. This heavier chlorination is why disinfection byproducts tend to be higher in surface-supplied systems. Despite the treatment process, mineral hardness from the watershed carries through. The system serves 59,000 residents.
Water quality can vary by neighborhood and season. For your exact numbers, request Village of Orland Park Water's Consumer Confidence Report (CCR) or test your own tap.
ZIP Codes Covered by This Report
This water quality data applies to all areas served by Village of Orland Park Water in Orland Park, IL, including ZIP codes:
60406, 60415, 60418, 60422, 60428, 60429, 60443, 60445, 60452, 60453, 60457, 60462, 60463, 60464, 60465, 60466, 60467, 60469, 60472, 60477, 60478, 60480, 60482, 60487, 60491, 60803
If your ZIP code is listed above, this report covers your water supply. Water quality may vary slightly by neighborhood.
Water Softener Sizing for Orland Park
At 320 PPM (18.7 GPG), here is how to size a softener for your Orland Park home. Multiply hardness in GPG (18.7) by daily water usage (roughly 50 gallons per person). A family of four uses about 200 gallons/day: 18.7 GPG × 200 gal = 3740 grains/day. Over a 7-day regeneration cycle, that is 26,180 grains - a 32,000-grain softener is the right fit for most Orland Park households.
Compare Orland Park to Other Illinois Cities
Frequently Asked Questions About Orland Park Water
Is Orland Park tap water safe to drink?
Where does Orland Park's water come from?
Do I need a water softener in Orland Park?
Does Orland Park water damage tankless water heaters?
How much does hard water cost a Orland Park household per year?
What is the hardness of Orland Park water in grains per gallon?
What size water softener do I need for Orland Park?
Salt-based softener or salt-free conditioner for Orland Park?
Data sources: Lead and copper data from EPA Safe Drinking Water Act LCR reporting. Contaminant data from utility-reported testing results. PFAS data from EPA UCMR5 (2023–2025). Hardness from USGS and municipal reports. Data reflects system-level testing results and may not match your specific tap due to neighborhood plumbing, season, or recent utility changes. For your utility's latest results, request their Consumer Confidence Report (CCR). Our methodology. Last updated: 2026-02-24.
What Orland Park Homeowners Actually Buy
Common purchases for homes with 320 PPM water.
Affiliate disclosure: we may earn a commission. Selection based on Orland Park's water data.