We developed this Nitrate Public Health Advisory Packet (DOH 331-259) to help you respond when nitrate levels in your water supply exceed 10 milligrams per liter (mg/L).
Contents/Downloads
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Nitrate Public Health Advisory Packet: Instructions for use by water systems
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331-259-1 (PDF)
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Nitrate in Drinking Water Q&A
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331-214 (PDF)
English / Spanish
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Nitrate Sampling Procedure brochure
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331-222 (PDF)
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Drinking Water After-Hours Emergency Hotline
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331-133 (PDF)
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Office of Drinking Water authority over operators and water systems (Fact Sheet)
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331-449 (PDF)
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Forms and News Release Templates:
| "Warning to Drinking Water Customers" (public notice) |
English (331-259-5)
PDF / Word
Spanish (331-259-6)
PDF / Word
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Nitrate door hanger public notice (English on one side, Spanish on reverse side)
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(331-259-2) PDF / Word
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Public Notice Certification
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(331-248-F) PDF / Word
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News Release Template: Announcing Nitrate Advisory
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(331-259-3) PDF / Word
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News Release Template: Cancel Nitrate Advisory
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(331-259-4) PDF / Word
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For more information
You can get a hardcopy of this packet from our regional offices below, or order online from our publications page.
Northwest Region: Kent 253-395-6750
Southwest Region: Tumwater 360-236-3030
Eastern Region: Spokane Valley 509-329-2100
Regional offices map (PDF) - includes addresses and phone numbers.