If you are asking “Is aquamation legal in South Dakota?”, the short answer is: No, human aquamation is not currently authorized within South Dakota.
Aquamation, scientifically known as alkaline hydrolysis or water cremation, is not defined or authorized under South Dakota Codified Laws (SDCL Chapter 34-26A) governing funeral directing and crematory operations. State statutes explicitly define cremation as a thermal process using heat and flame to reduce human remains. Because of this legal boundary, licensed funeral directors in the Mount Rushmore State cannot perform human water cremation inside state borders at this time.
However, for eco-conscious families across Sioux Falls, Rapid City, Aberdeen, Brookings, and Watertown seeking gentle, green aftercare, alternatives are available through pet aftercare providers or by arranging out-of-state human water cremation services in nearby states where it is authorized (such as Minnesota, Colorado, or Kansas).
This 2026 guide explains South Dakota’s legal framework, how aquamation works, out-of-state options, and essential tips for selecting an urn for bone ash remains.
South Dakota Aquamation Laws at a Glance
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Human Remains Legal Status: Not authorized for human disposition in-state. State statutes limit human cremation to flame-based thermal processing.
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Pet Remains Legal Status: Legal and available through specialized pet aftercare facilities and veterinary partners statewide.
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Regulatory Body: South Dakota State Board of Funeral Service (under the South Dakota Department of Health).
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Workarounds for Human Remains: Families dedicated to water cremation can work with a local South Dakota funeral home to coordinate transportation to an authorized facility in an adjacent state (such as Minnesota) where human aquamation is legal.
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Final Returned Remains: Pure, pale white bone powder (if processed in an authorized state).
What Is Aquamation (Water Cremation)?
Aquamation also called green cremation, bio-cremation, liquid cremation, or flameless cremation is a gentle, water-based disposition method.
Instead of using direct high heat and fossil fuels to reduce human remains, aquamation uses a solution of 95% warm water and 5% alkali (potassium hydroxide or sodium hydroxide). Over a 6- to 12-hour cycle inside a sealed stainless steel vessel, warm liquid flow and natural alkalinity accelerate the body's natural breakdown process.
At the end of the process, only soft, mineral bone fragments remain. These fragments are dried and processed into a fine white powder that can be safely kept at home, buried, or scattered.
Aquamation vs. Traditional Flame Cremation: Key Differences
| Feature | Aquamation (Water Cremation) | Traditional Flame Cremation |
| Primary Method | 95% Water & 5% Alkali Solution | Direct High Heat / Open Flame |
| Energy Consumption | Uses ~90% less energy | High fossil fuel consumption (natural gas/propane) |
| Emissions | Zero direct greenhouse gas stack emissions | Direct carbon dioxide and thermal emissions |
| Returned Remains | Fine, pale white powder | Coarser, gray bone ash |
| Ash Volume | ~20% to 30% greater returned volume | Standard baseline volume |
How Much Does Aquamation Cost?
Because human aquamation cannot be performed inside South Dakota, overall expenses depend on whether you are utilizing local pet services or transporting human remains out of state:
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Pet Aquamation in South Dakota: $150 – $450 (varies by pet weight and local provider)
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Out-of-State Human Aquamation: $2,500 – $4,500+ (includes transportation, out-of-state provider fees, and return shipping of ashes)
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Standard Flame Cremation in South Dakota: $1,300 – $3,200 (widely available statewide)
Choosing an Urn for Returned Ashes
Whether selecting local flame cremation or receiving returned ashes from an out-of-state aquamation provider, choosing the correct urn volume is essential. Because water cremation preserves more mineral bone material than high-heat incineration, the returned remains typically occupy 20% to 30% more space than standard flame cremation ashes.
When shopping for an adult memorial vessel, keep internal capacity top of mind:
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Adult Full-Sized Urns: For water cremation remains, select urns with a volume capacity of 220 to 250+ cubic inches (rather than standard 200 cu. in.) to ensure all ashes fit comfortably.
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Keepsake Urns: Small mini urns designed to hold a small portion of ashes, allowing multiple family members to share a token memory.
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Cremation Jewelry: Keepsake pendants and bracelets engineered with tiny inner chambers to carry a small piece of your loved one near your heart.
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Water-Soluble & Scattering Urns: Specially designed for natural ash-scattering ceremonies in rivers, private land, or designated outdoor spaces.
Frequently Asked Questions (FAQ)
Will human aquamation become legal in South Dakota?
While South Dakota statutes have not yet updated cremation definitions to include alkaline hydrolysis, growing regional interest in green end-of-life choices continues to prompt national adoption. Future legislative sessions may consider legalizing the process.
Can I bring aquamation ashes back to South Dakota from another state?
Yes. Once the process is performed legally in another state, you can bring or ship the returned ashes back to South Dakota. TSA permits cremated remains on flights in carry-on luggage provided the container passes X-ray inspection (e.g., wood, ceramic, or glass urns).
Can I keep cremated remains at home in South Dakota?
Yes. South Dakota law permits families to keep returned ashes at home, place them in a columbarium niche, bury them on private property, or scatter them with landowner permission.
Find the Right Memorial Container for Your Loved One
Choosing final arrangements is a tender and personal process. Whether selecting traditional flame cremation in South Dakota or arranging out-of-state green water cremation, explore Trupoint Memorials’ Collection of Cremation Urns to find a handcrafted, beautifully protective vessel for your loved one.
Disclaimer: Information regarding state statutes, funeral industry regulations, and legal statuses is accurate and up to date as of September 2026. Funeral laws and local facility availabilities are subject to change over time. Readers are encouraged to verify current local regulations with the appropriate state licensing boards or licensed funeral professionals.