RIVR mobile application · Last updated: June 2026
This Privacy Policy explains how HydroMap LLC (“we,”
“us,” or “our”) collects, uses, and protects information when you use
the RIVR mobile application (the “App”). RIVR provides
real-time river-flow data, flood-risk information, and forecasts
derived from the NOAA National Water Model.
By using RIVR, you agree to the practices described in this policy.
1. Information We Collect
Account information
When you create an account, we collect your email address
and a password, managed through Google Firebase Authentication. We
never see or store your password in plain text.
Content you save
Your favorite rivers, display preferences, and app settings
are stored in your account using Google Cloud Firestore so they sync
across your devices.
Notifications
If you enable push notifications (for example, flow or flood-risk
alerts), we store a device push token through Firebase
Cloud Messaging so we can deliver those notifications. You can disable
notifications at any time in your device settings.
Location
With your permission, RIVR uses your device’s location only while the App is open to show your position on the map and surface nearby river gauges. Your
location is used on your device to find nearby reaches; we do not store
a history of your location on our servers. You can deny or revoke
location access at any time without losing core functionality.
Photos and camera
If you choose to set a custom background image for a river, the photo
you take or select is stored locally on your device only. These images are not uploaded to us or any third
party.
Biometric authentication
If you enable Face ID, Touch ID, or fingerprint unlock, that biometric
data is handled entirely by your device’s operating system. It never leaves your device and is never transmitted to or stored by us.
Usage and diagnostic data
We use Firebase Analytics and Firebase Crashlytics to understand how
the App is used and to diagnose crashes. This may include device model,
operating-system version, app version, general usage events, and crash
reports. This data helps us improve reliability and is not used to
personally identify you.
2. How We Use Your Information
- To provide and operate the App and its core features.
- To sync your favorites and settings across your devices.
- To deliver notifications you have opted into.
- To diagnose problems, fix crashes, and improve performance.
- To maintain the security of your account.
We do not sell your personal information, and we do
not use it for third-party advertising.
3. Third-Party Services
RIVR relies on the following service providers, each governed by its
own privacy policy:
- Google Firebase (Authentication, Firestore, Cloud
Messaging, Analytics, Crashlytics) — account, sync, notifications,
and diagnostics.
- Mapbox — interactive maps and map tiles.
- NOAA National Water Prediction Service and the
National Water Model Return Periods API (CIROH) —
river-flow and forecast data. We send reach identifiers to retrieve
data; we do not send your personal information to these services.
4. Data Retention
We keep your account information and saved content for as long as your
account is active. When you delete your account, we remove your account
data, saved favorites, settings, and push tokens.
5. Your Choices and Rights
- Delete your account: You can permanently delete your
account and associated data directly in the App (Account → Delete
Account).
- Access and correction: You can view and update your
saved data within the App, or contact us for assistance.
- Permissions: You can grant or revoke location,
camera, notification, and biometric permissions at any time in your
device settings.
6. Security
We use industry-standard measures, including encrypted connections and
the security infrastructure of Google Firebase, to protect your
information. No method of transmission or storage is completely secure,
but we work to safeguard your data.
7. Children’s Privacy
RIVR is not directed to children under 13, and we do not knowingly
collect personal information from children under 13. If you believe a
child has provided us information, please contact us and we will delete
it.
8. Changes to This Policy
We may update this Privacy Policy from time to time. We will revise the
“Last updated” date above and, where appropriate, notify you within the
App.
9. Contact Us
Questions about this policy or your data? Contact us at [email protected].
Water Data Watches & HydroMap Explorer · Last updated: August 12, 2026
This Privacy Policy explains how HydroMap LLC (“we,”
“us,” or “our”) handles information when you use our public Water Data Watch dashboards and related web apps such as HydroMap Explorer
(together, the “Watches”), hosted on hydromap.com subdomains (for
example lake-specific Watch sites and app.hydromap.com). This section
does not cover the RIVR mobile application.
By using the Watches, you agree to the practices described here.
1. Information We Collect
No accounts
The Watches do not require you to create an account or log in, and you
never need to give us anything to read a dashboard.
You may optionally subscribe to email updates about a
specific Watch. That is the only circumstance in which we collect your
name or email address, it is never required, and it creates a
mailing-list record rather than an account—there is no password and
nothing to log into. See section 2, Email Subscriptions,
below.
Aggregate traffic analytics
We use Cloudflare Web Analytics, a privacy-oriented,
cookieless analytics service, to understand aggregate traffic (for
example page views and approximate geography). It is not used to build
advertising profiles.
First-party usage signals
Some Watch features may send lightweight first-party usage events to
our servers (for example UI interactions or chat usage). These signals
are stored without user accounts or login identifiers
and are used to improve reliability and product design—not for
third-party advertising.
Preferences on your device
Display preferences such as favorites, basemap choice, or similar
settings may be stored in your browser’s localStorage
on your device. Clearing site data in your browser removes them.
Chat and AI features
If you use an on-dashboard assistant or similar chat feature, the text
you submit may be logged temporarily for quality, safety, and
improvement. These logs are not tied to a named user account.
Maps and hydrologic data requests
Interactive maps and water-data panels request information from
third-party providers (for example map tiles and USGS, NOAA, or similar
public data APIs). Those requests include what the provider needs to
return data (such as map coordinates or gage/reach identifiers). We do
not send an account profile with those requests.
2. Email Subscriptions
The Watches offer two optional email subscriptions: a level alert (we write to you when a waterbody crosses a level you choose) and Watch updates (a short plain-language summary of one waterbody roughly weekly, plus
a notice when it crosses a milestone such as a record low). Both are free
and neither is required to use any part of the site.
What we collect
Your email address, the first name you give us if you choose to give
one (it is optional), and which Watch you subscribed to. For a level
alert we also store the level you asked to be told about. That is the
complete list. We do not collect your IP address, your location, or a
browsing history alongside a subscription, and we do not combine your
address with the aggregate analytics described in section 1.
Confirmation is required
We send one message asking you to confirm, and we send nothing else
until you do. This means nobody can add you to our list using your
address, including us. If a subscription is never confirmed we delete
the address within seven days.
What we send, and nothing else
Only the notices described above, about the Watch you chose. We may
occasionally write to subscribers directly about the service—a
correction, a change to the data, or a change to this policy. We do
not send marketing on behalf of anyone else and we do not send
anything you did not subscribe to.
No open or click tracking
Our email contains no tracking pixels and no per-recipient links.
Every recipient receives an identical message. We count how many
visits to a Watch arrive from an email in total; we cannot tell
whether any particular visit, or any particular subscriber, was one of
them.
Unsubscribing deletes your record
Every message carries a one-click unsubscribe link requiring no login.
Using it removes your record from our database. We do not keep it in a
flagged-as-unsubscribed state.
Retention
We keep a confirmed subscription until you unsubscribe. Unconfirmed
subscriptions are deleted within seven days.
Never sold or shared
We do not sell, rent, trade, or share our subscriber list. It is
disclosed to our email delivery provider (section 4) purely so
messages can be delivered, and to nobody else.
3. How We Use Information
- To operate and improve the Watches.
- To send the email updates you subscribed to.
- To understand aggregate usage and diagnose problems.
- To keep services secure and reliable.
We do not sell your personal information, and we do
not use Watch data for third-party advertising.
4. Third-Party Services
Watches may rely on providers such as Cloudflare (hosting and Web
Analytics), map-tile providers, and public hydrologic data APIs. Each
is governed by its own privacy policy. Underlying government and
research datasets are subject to their publishers’ terms.
- Resend — delivery of subscription email. Resend
processes the name and address of subscribers solely to deliver
messages we send, and does not use them for its own purposes.
5. Retention
Aggregate analytics and first-party usage logs are kept only as long as
useful for operations and improvement, then discarded or anonymized in
the ordinary course of running the service. Device preferences remain
on your device until you clear them.
Subscription records are retained as described in section 2 rather
than under this section.
6. Your Choices
-
You can stop using the Watches at any time. If you have not
subscribed to email updates, there is no account and no record of
you to delete.
-
If you have subscribed, every email we send carries
a one-click unsubscribe link that needs no login. Using it deletes your record — we do not keep a suppression entry, a hashed address, or any other
trace. You may also email us and we will remove it for you.
-
You can clear localStorage and cookies for hydromap.com hosts in your
browser settings.
-
Browser or network tools that block analytics will limit what we can
see about aggregate traffic.
7. Children’s Privacy
The Watches are not directed to children under 13. We do not knowingly
collect personal information from children under 13. We do not
knowingly accept email subscriptions from anyone under 13. If you
believe a child has subscribed, contact us and we will delete the
record.
8. Changes
We may update this policy from time to time and will revise the “Last
updated” date above when we do.
9. Contact Us
Questions? Contact us at [email protected].
hydromap.com marketing website · Last updated: August 2026
This Privacy Policy explains how HydroMap LLC (“we,”
“us,” or “our”) handles information when you visit the hydromap.com marketing website (the “Site”). It does not cover the RIVR mobile app
or Water Data Watch products—use the selector above for those.
1. Information We Collect
Browsing the Site
The Site is primarily static informational content. We do not require
an account to browse. Our hosting and CDN providers may generate
routine server or edge logs (such as IP address, user agent, requested
URL, and timestamp) used for security, debugging, and reliability. We
do not use those logs to build marketing profiles or sell personal
information.
Contact
If you email us or submit a contact form, we receive the information
you choose to send—typically your name, organization, email address,
and message. We use that information only to respond to your inquiry
and related follow-up.
Cookies and tracking
The marketing Site does not intentionally use third-party advertising
or tracking cookies. If we add analytics or similar tools later, we
will update this policy.
2. How We Use Information
- To operate and secure the Site.
- To respond to messages you send us.
We do not sell your personal information, and we do
not use Site information for third-party advertising.
3. Retention
Correspondence is retained as long as needed to handle your request and
for ordinary business records. Routine logs are retained according to
our hosting provider’s defaults and our operational needs.
4. Your Choices
You may contact us to ask about correspondence you have sent. Because
the Site has no user accounts, there is no profile to delete beyond
requesting that we remove email threads where feasible.
5. Children’s Privacy
The Site is not directed to children under 13. We do not knowingly
collect personal information from children under 13.
6. Changes
We may update this policy from time to time and will revise the “Last
updated” date above when we do.
7. Contact Us
Questions about this policy? Contact us at [email protected].
