OR / Water Quality
Water in Klamath Falls, OR
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40,475 people served · Groundwater
ViolationPFAS→
770 people served · Groundwater
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559 people served · Groundwater
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250 people served · Groundwater
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250 people served · Groundwater
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250 people served · Groundwater
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180 people served · Groundwater
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150 people served · Groundwater
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78 people served · Groundwater
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61 people served · Groundwater
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60 people served · Groundwater
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50 people served · Groundwater
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45 people served · Groundwater
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Data sources: EPA SDWIS · EPA UCMR5 · USGS. WaterScore is informational only. Last updated: 2026.